A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?

Replace the question mark with the correct number.

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

What has to be broken before you can use it?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

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

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Which English verb becomes past tense just by rearranging the letters?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?