Good Riddles

 
Riddle #842 (medium)

Question: What is 40 divided by 1/2, plus 15?

Question: Two men find an old gold coin and want to have a coin toss with it to decide who gets it. The only problem is the coin is heavier on one side so it comes up heads more than tails. What is a fair way for the men to toss the coin and decide who gets the coin?

Question: Why are manholes round instead of square?

Riddle #915 (medium)

Question: I wear a red coat and have a stone in my throat.

What am I?

Riddle #913 (medium)

Question: A man walks into a completely dark room. There is a box on a table at the other end of the room and immediately the man knows one of the contents of the box. He cannot smell, see, or hear it.

How does he immediately know what is inside?