Answer:
What never asks questions but receives a lot of answers?
A red house is made out of red bricks. A blue house is made out of blue bricks. What is a green house made out of?
The buyer doesn’t want it, the producer doesn’t need it and the user doesn’t know their using it.
What demands an answer, but asks no question?
There is a man in a 4 story building. He jumps out of the window and is unharmed. He used no padding, and had no harm done. How?
It is something you will never see again.