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?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

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

When it's bad luck to meet a black cat?

What has a bottom at the top?

In the picture, you can see a chess board. On the top left position, the K marks a knight. Now, can you move the knight in a manner that after 63 moves, the knight has been placed at all the squares exactly once excluding the starting square?

Our product and our sum always give the same answer. Who are we?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Forwards I am heavy, backward I am not. What am I?

John was so frustrated to be the suspect of being a sleeper terrorist that he shoot himself right between the eyes with a revolver in his toilet. The revolver and the bullets were accurate. Minutes later John walks out of the toilet unharmed.
How can this be possible?