In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

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.

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

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

What is the next number in this series?

4,12,84,3612....

What number comes next in the series?

5 15 5 18 5 24 14 20 _

There are forty elephants and they have forty-fore heads. How can this be possible?

I have two coins.
* One of the coins is a faulty coin having a tail on both sides of it.
* The other coin is a perfect coin (heads on side and tail on other).

I blindfold myself and pick a coin and put the coin on the table. The face of the coin towards the sky is the tail.

What is the probability that another side is also tail?