Good Riddles

 
Riddle #33 (easy)

Question: What is the center of gravity?

Riddle #36 (easy)

Question: When you fall in me your as happy as could be, but you fall into depression when you lose me.

What am I?

Riddle #38 (easy)

Question: The person who buys me doesn't need me, the person who makes me doesn't want me, and the person who uses me can't appreciate me.

What am I?

Question: I am greater than God, more evil than the devil, the poor have me, the rich don't, and if you eat me, you'll die.What am I?

Riddle #40 (easy)

Question: A cowboy rode to an inn on Friday. He stayed two nights and left on Friday. How could that be?