The person who makes it, has no need for it. The person who buys it, has no use for it. The person who uses it can not see or feel it. What is it?
RIDDLE: A man is able to contact his long lost brother who has never met. They agree to meet. When the brother arrives he is able to instantly pick him out from the crowd. How is that possible?
RIDDLE: You can easily touch me but not see me. You can throw me out but never away. What am I?
ANSWER: Your back