There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

Replace the question mark with the correct number below.

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

You need to pick one entry from pot A and one from pot B to have a perfect match. Can you do it?

In a chess board, the queen piece can move horizontally, vertically and diagonally freely. The picture represents the same.Can you place 8 queens on the board in a manner that none of the queens can attack each other?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?