How old is your son? asked a man to his neighbour. My son is five times as old as my daughter and my wife is five times as old as my son. I am twice as old as my wife whereas my grandmother, who is celebrating her eighty-first birthday is as old as all of us put together.

How old is the man's son ?

In the given figure, move three matchsticks so that the resulting figure contains two rectangles.

I have branches, but no fruit, trunk or leaves. What am I?

What four weights can be used to balance from 1 to 30 pounds?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

Why is a river so rich ?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

A man is found unconscious in front of a store at two in the morning. His head is bleeding and there’s a brick laying next to him. When the police arrive, they carry the man to jail. Why did they arrest him?