Riddle: How can you leave a room with two legs and return with six legs?
Answer: Bring a chair back with you.
Riddle: If you have me, you want to share me. If you share me, you haven't got me. What am I?
Answer: A Secret.
Riddle:

If you were running a race, and you passed the person in 2nd place, what place would you be in now?

Answer: You would be in the 2nd place. You thought first place, right? Well, you passed the guy in second place, not first.
Best Riddles
Riddle: Look in my face, I am somebody; Look in my back, I am nobody. What am I?
Answer: I am a mirror.
Riddle: A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?
Answer: The car door.
Best Riddles
Riddle: It can't be seen, can't be felt, can't be heard, and can't be smelt. It lies behind stars and under hills, And empty holes it fills. It comes first and follows after, Ends life, and kills laughter. What is it?
Answer: The dark.
Riddle: I am full of holes but I can still hold water. What am I?
Answer: A sponge!
Best Riddles
Riddle: I have a little house in which I live all alone. It has no doors or windows, and if I want to go out I must break through the wall. What am I?
Answer: A chick in an egg.
Riddle: How many sides does a circle have?
Answer: Two. The inside and the outside.
Riddle: Why did Snap, Crackle and Pop get scared?
Answer: They heard there was a cereal killer on the loose.