Riddle: The rich people want me, the poor people have me, if you eat me you die. What am I?
Answer: Nothing.
Riddle: Untainted, Eternal, Marooned A place where the living will move. A shrine beneath the sun. Greeted by the morning's crest. Our sanctity, Our rest. For when our day is done. What am I?
Answer: A Graveyard.
Riddle: There is 10 birds on a branch, a man shot 5 of them. How many were left?
Answer: Zero, because when birds see someone coming or hear something they fly away.
Riddle: I leave every time you say my name. What am I?
Answer: Silence.
Riddle: I'm lighter than a feather, but even the strongest man can only hold me for a short time. What am I?
Answer: Breathe.
Riddle: You can crack me; You can make me; You can tell me; You can play me. What am I?
Answer: A joke.
Riddle: One way I'm loose, one way I'm tight; Out with left, in with right. What am I?
Answer: Screw/Screwdriver.
Riddle: My full powers come when my makers are dead; I await a heavy hat to put on my head. What am I?
Answer: Prince.
Riddle: I grow in the dark and shine in the light; The paler I am, the more I am liked; My maker never gets paid, but never goes on strike. What am I?
Answer: A pearl.
Riddle: A single word which is versatile, it can be a letter, unknown to the problem, a variable, a target, a love, an intercept, and a type of chromosome. What am I?
Answer: X.