Why is a river so rich ?

What is the fastest way to double your money?

Can you name four days which start with the letter 'T'?

What's the only room from which no one can enter or leave

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

What type of tree can I carry in my hand?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

Can you make a six-letter word using the letters N, A and B ?

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

Who is He ?

Why do you find that most of the buildings are deprived of the 13th floor?