Brain Test Level 64 Answer
Flicking or dragging the frog upward, the way you would launch anything else in a puzzle game. Frogs jump, so every instinct here is to throw it into the air, and every throw simply drops it back down.
The puzzle
Help the frog fly.
The answer
Hold your finger on the frog's nose for about five seconds. It inflates like a balloon and floats away.
What most people try first
Flicking or dragging the frog upward, the way you would launch anything else in a puzzle game.
Why that is the answer
Frogs jump, so every instinct here is to throw it into the air, and every throw simply drops it back down. The verb in the instruction is fly rather than jump, which means the frog needs to become something that floats. Hold a finger on its nose and keep it there for about five seconds: it inflates like a balloon and drifts off on its own.
If your level 64 looks different
Unico Studio shuffles level numbers between game versions and platforms, so the puzzle on your screen may carry a different number from the one here. If the question above is not the one you are looking at, the full levels 51 to 100 walkthrough lists every puzzle in this stretch by its question, which is easier to match than a number.