John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

A man lives on the fifteenth floor of an apartment building. Every morning he takes the elevator down to the lobby and leaves the building. In the evening, he gets into the elevator, and, if there is someone else in the elevator, or if it was raining that day, he goes back to his floor directly. Otherwise, he goes to the tenth floor and walks up five flights of stairs to his apartment. Can you explain why he does this?

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

I have no life, but I can die. What am I?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?

Can you find the hidden animal in the picture below?

What has many keys but can’t open a single lock?

A family is trapped in a jungle. There is a bridge which can lead them to safety. But at one time, the bridge can only allow two people to pass through. Also, all of them are afraid of the dark and thus, they can't go alone.

Father takes 1 minute to cross, the mother takes 2 minutes, the son takes 4 and the daughter takes 5 minutes. While crossing the time taken will be according to the slower one. How can they all reach the other side in the minimum possible time?