Good Riddles

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: What kind of bee drops things?

Question: What is bright and sunny?

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

Question: This sentence is false.

Is the preceding sentence true or false?