Why Aeroplane windows are round?

Count the squares in the matchstick puzzle below?

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

Why are all black people so quick ?

Count the number of squares in the picture below.

What's the best place to go shopping in the ocean?

An explorer goes on an exposition in the jungle. He sets up camp in the middle of the jungle. The next morning he sees something with a head and a tail, but he is not afraid. What did he see in his bag?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

What do you answer even though it never asks you questions?