What is the riddle which can be asked all day with a different correct answer each time.

Replace the question mark with the correct number in below Picture:

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

John was visiting his friend Jacob. He found out that his friend's wife had just killed a burglar in self-defense.
John asks Jacob about what happened and he told that "His wife was watching television when suddenly the bell rang. She thought that it is her husband Jacob but she found the burglar who attacked her instantly and she got so frightened that she killed the burglar immediately with the knife.
John asked the police to arrest his friend's wife. Why?

The below mentioned letters have been placed in a order using a logic.

DEAD, BALL, FEAR, SHOP

Can you find the logic?

How many triangles are there on the puzzle below?

What have one eye but still cannot see?

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?