Can you count the number of squares in the given picture?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

Replace the question mark in the picture below.

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

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

What is the largest amount of money that you can possess in change and still if someone asks you for a dollar, you won't be able to give?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?