why number 8549176320 is one of a kind?

How many bananas can you eat if your stomach is empty?

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

What brings you down but never up?

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Can you place six X (crosses) in below board without making three in a row in any way ?