Good Riddles

Question: This sentence is false.

Is the preceding sentence true or false?

Question: Having some, you want more. But when you have too much of it you feel bored. Everyone people wants it, and some have to much of it. What is it?

Question: I can distract you and I can hurt you. You always check me out regularly. What am I?

Question: At the end of a long dark cave there is a monster made of lead. Be careful. One twitch of the finger and you will release it.

What is it?

Question: You are walking down the road trying to find enlightenment when you come to a monk and a three-way fork in the road. The roads point North, East, and West. You can ask the monk one question. He will answer honestly yes, no, or just hum if he cannot answer the question.

What do you ask him to figure out the correct path?