A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Rearrange the letters in "new door" to make one word.

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Out of three Friends John, Jacob and Jonny one of them is a king, one is a bureaucrat, and one is a Spy.

The king always tells the truth, the bureaucrat always lies, and the Spy can either lie or tell the truth.

John says: Jonny is a bureaucrat
Jacob says: John is a king
Jonny says: I am a Spy

Tell me, Who is the king, who is the bureaucrat, and who is the Spy?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

When it is alive we sing, when it is dead we clap our hands. What is it?

How could a baby fall out of a twenty-story building onto the ground and live?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Which is the smallest number that you can write using all the vowels exactly once?