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?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

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

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?

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

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

If you're 8 feet away from a door and with each move you advance half the distance to the door. How many moves will it take to reach the door?

No matter how little or how much you use me, you change me every month. What am I?

I am an odd number. Take away a letter and I become even. What number am I?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?