When my father was 31 I was 8. Now he is twice as old as me. How old am I?

Move four matchsticks to the below square to form three squares?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

Name a key which is hardest to turn.

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?