Brain Training & Daily Brain Exercises
Think of this page as daily brain training you can do anywhere, no app required. Work through brain exercises that stretch your memory and focus, test your logic, and score you as you go. Do a few each day and watch your streak of correct answers grow.
Three shapes of drill card: a number run, a recalled fact, a rebuilt word
The format rotates as you scroll: fifty-one carry a plain question with a reveal, ten offer four choices, five want a typed answer, five are true or false, four are drawn figures and one is a pair of emoji, which comes to seventy-six cards. Twenty-two announce a drill in the question itself, and the badges split almost evenly at twenty-six Easy, twenty-five Medium and twenty-five Hard. On a run of numbers, start with the difference between one term and the next, and drop it once the gaps name nothing: the rule may be a family or a spelling.
The working habit here is distrust of a rule that fits only the start of a run. Doubling matches the opening pair on six of the runs you can extend and carries through to the end on exactly one, so a later pair is what settles the rule. Word cards ask for the opposite reflex: sort the letters, group the repeats, and let the spelling lead instead of the meaning. Where a card has a famous wrong answer, that answer sits in plain view under the question, ready to be weighed and set aside.
Our brain games for adults page turns on assumptions the reader adds unprompted, and logic riddles work the same seam on longer scenes you write out. Here the load is arithmetic and recall: fifteen cards hang on a fact you either hold or look up, and fourteen more hand you numbers to work on directly.
- Riddle 9: most people say Ten cents. Ten cents leaves the bat at a dollar ten, and the pair then totals a dollar twenty, which is more than the card allows. The extra ten cents belongs to the two prices in equal shares.
- Riddle 45: most people say Thirteen hens. Subtracting seven from twenty answers a question the card never asked. The phrase all but seven names the hens that were sold. The seven it sets aside is the count still on the farm, and the twenty is only scenery.
- Riddle 54: most people say Day 10. One foot of net gain a day suggests ten days, but the slide happens after the climb. Once the snail starts a day at seven feet, the next three feet of climbing carry it over the rim before night.
- Riddle 60: most people say First place. Passing someone puts you where they were, and the card says that person held second. The wording never brings the leader closer, so the move gains exactly one place.
Name the rule out loud, then test it on a pair further down the run before you trust it.
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1. Memory drill: read this list once, then answer without looking back. Apple, key, river, seven, candle. Which word came third? Medium
Show answer
River
Break the list into a pair and a trio while you read it, so apple and key form one group and the trio that follows opens with the answer.
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2. Logic drill: what number comes next? 2, 4, 8, 16... Easy
Show answer
32
Adding eight fits the jump from eight to sixteen and nothing else, because the jump doubles along with the run. Each term is twice the one before it, so sixteen leads to thirty two.
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3. Focus drill: type the word FOCUS backwards. Easy
Show answer
sucof
Say the final letter first and keep stepping left, one character at a time. Flipping the whole shape at once, rather than stepping through it, is where two letters trade places.
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4. Logic drill: all Blips are blue. Zog is a Blip. So Zog must be blue. Easy
Show answer
True.
A rule about a whole group reaches any member you can place inside it. Zog is named as a Blip, so the color of every Blip belongs to Zog too.
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5. Focus drill: how many squares are in this figure? Medium
Most people first say: Four squares
Show answer
Five. Four small squares plus the big outer square most people forget to count.
Four small cells fill the grid, and the border drawn around them is a fifth square in its own right. A shape built out of shapes still counts once itself.
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6. Memory check: which word was NOT on the list you read a moment ago? Medium
Show answer
Ladder
Rebuild the list before you read the choices, then check them off against it. Apple, candle and seven were all on the memorized list; Ladder is the name that never appeared there, which is what marks it out.
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7. Logic riddle: I get bigger the more you take away from me. What am I? Easy
Need a hint?
Think about digging.
Show answer
A hole.
Taking pieces out of something normally leaves less of it. This one reverses that, because the thing being measured is the empty space, and every scoop of dirt adds to it.
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8. Focus drill: which letter comes three letters after G in the alphabet? Easy
Show answer
J
Give G the number zero before you count, so the three steps land on H, then I, then the letter you want.
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9. Logic drill: a bat and a ball cost 1 dollar and 10 cents together. The bat costs exactly 1 dollar more than the ball. How many cents does the ball cost? Hard
Most people first say: Ten cents
Need a hint?
Set the dollar difference aside first, then look at what remains.
Show answer
5
A dollar is the gap between the two prices, so it measures the difference and never the ball on its own. Take it off the dollar ten, then split the ten cents left over between bat and ball.
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10. Focus drill: the word 'tomorrow' contains three letter o's. Medium
Show answer
True.
Reading the word at speed hides one of them, because two o's sit only one letter apart. Spell it out, t o m o r r o w, and all three turn up.
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11. Focus drill: how many triangles do you see? Medium
Most people first say: Two triangles
Show answer
Three. Two smaller triangles plus the big outer one.
Ask what the dividing line did to the figure: it split the big shape in two and left the outer edges intact, so the pair inside and the whole they sit in all count.
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12. Warm-up riddle: some months have 30 days and some have 31, but how many months have 28 days? Medium
Most people first say: Only February
Need a hint?
Read the question again slowly.
Show answer
All twelve of them. Every month has at least 28 days.
Nothing in the wording asks which month stops at twenty-eight. It asks which ones reach that count, and a longer month passes the twenty-eighth on its way to the end.
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13. Logic drill: which one does not belong? Easy
Show answer
Oxygen
Sort by state before you sort by name: three of these you could hold in your hand at room temperature, and the one left over is part of the air around you.
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14. Focus drill: count the letter F in this sentence: 'Fresh fruit for a fit brain.' How many did you find? Medium
Most people first say: Three F's
Show answer
4
Every F here opens a word, so the tally is a print job rather than a reading job. The small unstressed word between the nouns is the one a skimmer glides past.
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15. Memory drill: study these digits for a moment, then answer without looking: 7 3 9 1. Which digit was second? Medium
Show answer
3
Store the four digits as two pairs, seven three and nine one, then read the back half of the first pair.
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16. Logic riddle: what weighs more, a pound of feathers or a pound of bricks? Easy
Most people first say: The bricks
Need a hint?
Focus on the unit, not the material.
Show answer
Neither. Both weigh exactly one pound.
A heavier material feels like the winner here, and the contest is settled before it starts. Pound fixes the amount on both sides, so the material never enters the comparison at all.
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17. Logic drill: February is the only month with fewer than 30 days. Easy
Show answer
True.
Eleven months stop at thirty or thirty-one days, and one runs twenty-eight most years with twenty-nine in a leap year, so the claim holds.
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18. Focus drill: which circle is the odd one out? Easy
Show answer
The third circle. It is only an outline while the other three are filled in.
Three discs are filled solid and one is drawn as a bare ring, so the fill is what separates them. Wherever that hollow one sits in the row, it stays the unfilled one.
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19. Logic drill: Anna is taller than Ben. Ben is taller than Carl. Who is shortest? Easy
Show answer
Carl
Two comparisons chain into one line when they share a person, and the name that never appears on the taller side of either sentence sits at the bottom of it.
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20. Memory drill: without looking at a keyboard, what letter sits between Q and E on the top row? Medium
Show answer
W
The name QWERTY comes from the first six letters of that top row, and reciting the string places the second one right after Q.
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21. Focus riddle: the more of me there is, the less you see. What am I? Easy
Most people first say: Thick fog
Need a hint?
Try answering with the lights off.
Show answer
Darkness.
Two amounts move together on this card: how much of it there is, and how little you can pick out. Something missing can still get bigger, so its growth and that loss are one and the same.
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22. Logic drill: what letter comes next in this pattern? J, F, M, A, M... Medium
Show answer
J
Initials are the trick here, and the tell is the repeat: two M letters cannot be alphabet steps, so read them as month names and carry on from May.
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23. Focus drill: this sentence contains exactly seven words. Medium
Show answer
False.
The sentence describes itself, which makes the claim testable on the spot. Count the six words after the drill label, or all eight including it, and neither tally reaches seven.
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24. 🧠 + 🏋️ Easy
Most people first say: Mental strength
Need a hint?
It is what you are doing right now.
Show answer
A brain workout (brain + weights). That is exactly what this page is.
What word does each picture stand for on its own? Name the organ, then name what the lifter is doing, and the two words snap into a phrase.
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25. Memory drill: back to those digits, 7 3 9 1. What is the sum of the first and last digits? Easy
Show answer
8
Every wrong choice here sums a different pair of the four digits, so the work is picking the two ends rather than adding at random. Seven and one are the ones you want.
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26. Logic riddle: what can you hold in your left hand but never in your right hand? Medium
Most people first say: Your left elbow
Need a hint?
Try it right now. Really, try it.
Show answer
Your right elbow.
Nothing outside your body is involved. The joint in question sits on the very arm that would have to grasp it, and no hand can reach its own elbow, while the other one crosses over freely.
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27. Focus drill: how many dots are inside the circle? Medium
Most people first say: Seven dots
Show answer
Four. Four dots sit inside the circle. The other three are outside and try to distract you.
Count every dot on the card and you land on seven, which answers a question nobody asked. The word inside fences the tally to the region the ring encloses, and three strays sit beyond it.
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28. Logic drill: rearrange the letters of LISTEN to make another English word. Medium
Show answer
Silent
An anagram keeps every letter and changes only the order, so the job is matching inventories rather than recalling meanings. Sort the six letters, then try words that spend all of them.
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29. Focus drill: how many letters are in the correct answer to this question, if the correct answer is 'four'? Easy
Show answer
Four
Count the letters of four and you get four, a coincidence this puzzle is built on. Solvers chase the loop, testing each choice against itself, when spelling the one given word settles it.
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30. Final memory check: the word list at the top of this page started with 'apple'. Medium
Show answer
True.
The claim names one slot only, so recall the opening word and stop there. Whatever came after it can stay out of reach without costing you the answer.
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31. What number comes next: 10, 20, 30, 40, ...? Easy
Show answer
50
Subtract one term from the next and you get ten every time, which is the whole rule here. Name the step, then check it against the last pair on the card before you extend the run.
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32. Odd one out: dog, cat, goldfish, hammer. Which does not belong? Easy
Most people first say: The goldfish
Show answer
Hammer
Three of these names belong to living creatures and the fourth names a workshop tool, which is the split the question wants. Test every name against one line before you compare them against each other.
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33. Which letter comes next: B, D, F, H, ...? Easy
Most people first say: The letter I
Show answer
J
One letter gets skipped between each pair, so keep reciting the alphabet from H and take the second name you reach.
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34. What is 9 times 6? Easy
Most people first say: Forty five
Show answer
54
The nine times table is the fact this card wants, and nine sixes land on fifty four. One rung up or down that table gives forty five and sixty three, so recite the table rather than counting sixes one at a time.
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35. Spell the word EARTH backwards, letter by letter. Easy
Show answer
HTRAE
Three consonants land together at the tail of this word and lead the reversed string, so the cluster is where a hurried speller swaps two letters and still feels right.
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36. Odd one out: 4, 8, 12, 15, 20. Which number does not belong? Easy
Show answer
15
Which of these survives a halving? Four of them land on whole numbers and one stops at a half, and that test settles the odd one out faster than measuring gaps.
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37. What number comes next: 100, 90, 80, 70, ...? Easy
Show answer
60
A falling run still has a rule, and here it is a steady ten off each time. Measure the gap between two neighbors before you name the next number, since the size and the direction both have to hold.
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38. If today is Friday, what day is tomorrow? Easy
Show answer
Saturday
Weekday questions need a direction as well as a day. Tomorrow moves forward by one place, so walk the week that way from whichever day the card names.
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39. Odd one out: red, blue, green, loud. Which does not belong? Easy
Show answer
Loud
Three of these words answer the question what color, and the fourth answers how something sounds. Ask which question a word answers, not what it describes, and the group splits three against one.
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40. What number comes next: 1, 3, 5, 7, ...? Easy
Most people first say: The number 8
Show answer
9
Reach for the even number that follows seven and you break the stride, because counting by twos from an odd start never touches an even value. The gap stays at two the whole way.
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41. What is 50 minus 24? Easy
Show answer
26
Twenty four splits into twenty and four, and both come off fifty in turn. Fifty less twenty is thirty, and thirty less four is twenty six.
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42. Which is longer, one meter or one centimeter? Easy
Show answer
A meter
One meter holds a hundred centimeters, so this is settled by the unit rather than by how the words look. Both names end in meter, which is what makes the pair look closer than it is.
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43. What number comes next: 1, 4, 9, 16, 25, ...? Medium
Need a hint?
Try multiplying a number by itself.
Show answer
36
Square numbers are the family here: one, four, nine and sixteen are each a number multiplied by itself. Name the family and the next term arrives in one move, with six sixes giving thirty six.
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44. What number comes next: 2, 3, 5, 8, 13, ...? Medium
Need a hint?
Add the two numbers just before it.
Show answer
21
Each term is built from the two before it, so the gaps refuse to settle. Write them under the run and you get one, two, three, then five, which is where a gap climbing by one breaks.
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45. A farmer had twenty hens. All but seven were sold. How many hens remain? Medium
Most people first say: Thirteen hens
Need a hint?
Read all but seven carefully.
Show answer
7
A subtraction looks inevitable with two numbers on the card, and the phrase blocks it. All but seven means every one except those seven, so the seven names what stayed behind.
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46. What number comes next: 3, 6, 11, 18, 27, ...? Medium
Need a hint?
Look at how much the numbers jump each step.
Show answer
38
Write the jumps under the run and they read three, five, seven, nine, an odd ladder climbing by two. Doubling or adding the same amount each time fits the opening pair and collapses after that.
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47. Rearrange the letters of RETAIN to name the light-sensitive layer at the back of your eye. Medium
Show answer
Retina
The capitalized word already holds every letter the answer needs, so this is shuffling work rather than a vocabulary hunt. Move the letters until a familiar anatomy word appears.
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48. Odd one out: 8, 27, 64, 81, 125. Which number does not belong? Medium
Show answer
81
Cubes make the pattern: two, three, four and five each multiplied by itself twice. The stray member is a fourth power instead, close enough in size to pass for one of them.
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49. What number comes next: 1, 2, 4, 7, 11, 16, ...? Medium
Show answer
22
The step grows by one at every stage rather than holding steady, so each new term costs more than the last addition did. Doubling survives as far as four and then the run refuses it.
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50. If the day before yesterday was Monday, what day is tomorrow? Medium
Need a hint?
Work out what day today is first.
Show answer
Thursday
Counting straight from today misses a step, because the card names a day two back from it. Monday plus two lands on Wednesday, and tomorrow adds one more.
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51. What number comes next: 1, 8, 27, 64, ...? Medium
Show answer
125
Three copies of the same factor build every term, so one, two, three and four are the real inputs here. Step on to the next factor and the jump sorts itself out.
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52. This is a look-and-say sequence: 1, 11, 21, 1211, 111221, ...? What comes next? Hard
Need a hint?
Describe the previous line out loud.
Show answer
312211
No arithmetic is happening in this list. Each line counts the runs of identical digits in the line above and writes the count in front of the digit, so read one aloud and write what you said.
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53. What number comes next: 2, 5, 10, 17, 26, ...? Hard
Need a hint?
Subtract one from every term first.
Show answer
37
Strip one from every term and an ordinary square run shows up underneath: one, four, nine, sixteen, twenty five. The offset is the only thing hiding it.
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54. A snail is at the bottom of a ten foot well. Each day it climbs three feet, and each night it slips back two feet. On which day does it reach the top? Hard
Most people first say: Day 10
Need a hint?
Track its height at the end of each day, and remember the last climb.
Show answer
Day 8
An average of one foot a day suggests day ten, and the final day breaks the average. The climb comes before the slide, so the snail clears the rim and never slips back that night.
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55. If three cats catch three mice in three minutes, how many cats are needed to catch one hundred mice in one hundred minutes? Hard
Most people first say: One hundred cats
Need a hint?
Find how long one cat takes to catch one mouse.
Show answer
3
Work out the rate for one cat first: three minutes per mouse. Three cats together finish one mouse a minute, so a hundred minutes brings in a hundred mice with the same three.
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56. What number comes next: 1, 1, 2, 4, 7, 13, ...? Hard
Need a hint?
Try adding more than two earlier terms.
Show answer
24
Two term addition gets you started and then stalls, since this run sums the three values before each new one. Checking your rule against a later pair is what catches the miss.
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57. Two fathers and two sons ate breakfast and finished exactly three eggs, with each person eating one whole egg. How is that possible? Hard
Most people first say: Four people
Need a hint?
Ask how few people the labels could cover.
Show answer
There were only three people: a grandfather, his son, and his grandson
Two fathers and two sons is a count of titles, not of chairs. The middle man wears both at once: three eaters finish three eggs with one each.
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58. Unscramble PEHATNEL to name a large gray animal with a trunk. Hard
Need a hint?
Drop any animal whose name uses a letter absent here.
Show answer
Elephant
Sort the eight letters into alphabetical order and the block stops looking random. Then test a candidate by inventory rather than by meaning: if a name needs a letter this block does not hold, it is out.
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59. What number comes next: 1, 2, 4, 3, 9, 4, 16, 5, ...? Hard
Need a hint?
There are two sequences woven together.
Show answer
25
Two runs are braided together here, one climbing through squares and the other counting upward in ones. Reading the list as a single rule makes the numbers look random when they are orderly.
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60. In a foot race you pass the runner in second place. What position are you in now? Hard
Most people first say: First place
Need a hint?
Whose position do you actually take over?
Show answer
Second
No word in the scene says the leader is close. A pass swaps you with the runner you caught, and the card already names the place that runner was holding.
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61. I am a two-digit number. My tens digit is twice my units digit, and my two digits add up to nine. What number am I? Hard
Most people first say: The number 36
Need a hint?
Test digit pairs that sum to nine.
Show answer
63
How many two digit numbers have digits adding to nine? Nine of them, and the doubling rule survives on one alone, since twice a digit plus that digit has to land on nine.
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62. If January 1 falls on a Monday, what day of the week is January 31? Hard
Need a hint?
Count the extra days after whole weeks.
Show answer
Wednesday
Weekday arithmetic works in sevens. Thirty days separate the two dates, four full weeks account for twenty eight of them, and the leftover pair moves the day forward twice.
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63. Unscramble the letters C, I, F, A, P, C, I to name an ocean. Hard
Need a hint?
Count the letters, then check each name's length.
Show answer
Pacific
Repeated letters are the handle here. Two C's and two I's, with a P, an F and an A left over, match a seven letter ocean, so group the duplicates before you try any order.
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64. What number comes next: 5, 11, 23, 47, 95, ...? Hard
Need a hint?
Try double the number plus something small.
Show answer
191
Each step doubles and then adds one, which is why plain doubling lands just short every time. A rule with two operations is the shape to look for when a single one keeps missing by a fixed amount.
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65. All roses are flowers, and some flowers fade quickly, so some roses fade quickly. Is that conclusion logically valid? Answer yes or no. Hard
Most people first say: Yes, it is valid
Need a hint?
Could the fading flowers all be other blooms?
Show answer
No
Some flowers fade quickly names a group that might sit entirely outside the roses. Nothing in the two statements forces those sets to share a member, so the conclusion can fail while both premises hold.
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66. What number comes next: 1, 4, 27, 256, ...? Hard
Need a hint?
Raise each counting number to itself.
Show answer
3125
Where does two hundred fifty six come from? Each entry is a counting number raised to its own power, so four to the fourth gives it and five to the fifth closes the run.
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67. The numbers 8, 5, 4, 9, 1, 7, 6, 3, 2, 0 follow one hidden rule. What is it? Hard
Need a hint?
Say each digit's name aloud.
Show answer
They are sorted alphabetically by their English names
Size tells you nothing here, so spell each digit out before looking for an order. As words they fall into dictionary order, which puts eight at the front and zero at the back.
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68. If two typists type two pages in two minutes, how many typists are needed to type eighteen pages in six minutes? Hard
Most people first say: Eighteen typists
Need a hint?
Find one typist's output over six minutes.
Show answer
6
Output per worker over the stated window is the figure to build. Each typist manages three pages in six minutes, and dividing the target by that share gives the staff you need.
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69. Clay is to potter as wood is to which worker? Medium
Most people first say: A sculptor
Show answer
Carpenter
Analogies are solved by naming the link first, and here the link runs from material to trade. Clay names the potter, so the blank wants the trade that wood names just as tightly.
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70. What number comes next: 41, 43, 47, 53, 59, ...? Hard
Need a hint?
Skip every number that has a factor other than one and itself.
Show answer
61
Primes drive this run, so the gaps look irregular on purpose. Once you name the family, walk up the odd numbers past fifty nine and drop each one that divides evenly by something besides one and itself.
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71. What common English word becomes shorter when you add two letters to it? Hard
Need a hint?
Add the same two letters to each word you try.
Show answer
Short
Becomes shorter reads like a measurement, but on this card it is a spelling. An e and an r build the comparative of short, and the question wants the word that turns into shorter, not the one that loses size.
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72. Peter is looking at Susan, and Susan is looking at Freddie. Peter is married and Freddie is not. Is a married person looking at an unmarried person? Hard
Most people first say: Cannot be determined
Need a hint?
Test both cases for Susan's marital status.
Show answer
Yes
The unknown in the middle does not block the conclusion. Either state for that person creates a married watcher looking at an unmarried one, so checking both branches answers it either way.
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73. What is XL plus IX written as an ordinary number? Hard
Need a hint?
In each pair, ask which letter comes first.
Show answer
49
Roman letters carry values, and a smaller letter standing in front of a bigger one is subtracted. X before L reads as ten less than fifty, and I before X as one less than ten.
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74. What number comes next: 1, 2, 5, 14, 41, ...? Hard
Need a hint?
Try multiplying by a small number, then adjusting by one.
Show answer
122
Tripling alone lands one above every term in this run, and a miss that never changes size is the sign of a second step. Multiply by three, then take one away.
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75. Four runners finished a race. Beth came in last. Evan was not last. Carl finished right behind Dana. Dana finished ahead of Evan. Who came in first? Hard
Need a hint?
Place Beth last first, then keep Dana and Carl side by side.
Show answer
Dana
Order puzzles want the certain facts placed first. One runner is pinned to the back, another pair has to stay adjacent, and the remaining clue about who finished ahead leaves a single arrangement.
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76. How many times does the digit 7 appear when you write every number from 1 to 100? Hard
Most people first say: Ten sevens
Need a hint?
Count the units place and the tens place separately.
Show answer
20
A digit is counted once per appearance rather than once per number, so seventy seven contributes two. Sevens fill the units column once a decade and the tens column all through the seventies.
Memory exercises that loop back on you
A word list opens the page, then questions quiz you on it without warning, and one card comes back to that list long after you stopped expecting it. Read the list once and hold it.
Logic drills and quick brain teasers
Number patterns, syllogisms about blue Blips, and the famous bat-and-ball problem are scattered through the middle. Most people rush these. Slow down.
Focus and attention training
Count letters in a sentence, spot the odd circle out, and tally shapes in a figure. These attention drills punish skimming, which is exactly the point.
Your score
FAQ about Brain Training & Daily Brain Exercises
How many brain exercises should I do per day?
A short daily session beats a long weekly one. Five or six exercises from this page take about ten minutes, and the score bar tells you how you did. Come back tomorrow and try to beat it.
What types of exercises are on this page?
The drills mix multiple choice, type-the-answer, true or false, visual shape-counting puzzles, and a few classic riddles. Memory, logic, and focus each get their own share.
Does brain training actually work?
Research is mixed on whether puzzle practice transfers to everyday life, but you will get measurably better at the skills you practice: holding a list in memory, spotting patterns, and reading carefully. It is also good fun.
When the drills start feeling easy, raise the stakes. The logic riddles give that reasoning a longer runway, where the mistake is nearly always a fact you supplied without noticing, while Brain Games for Adults adds trickier material built for grown-up solvers.