As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

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 ?

An express train takes 3 seconds to enter the tunnel which is 1 km long.
If it is travelling at 120 km an hour, how long will it take to pass completely through the tunnel?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Why do you find that most of the buildings are deprived of the 13th floor?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

What goes up but never comes down?

Which Burger Is Different in below image?

A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?