A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

If a zookeeper had 100 pairs of animals in her zoo, and two pairs of babies are born for each one of the original animals, then (sadly) 23 animals don’t survive, how many animals do you have left in total?

There is something which you can be arrested for attempting but not for successfully completing.

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

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?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What goes up but never comes down?

John was piloting a plane behind a car but was never able to overtake it. Why?