Good Riddles

Question: Bob and Ann were found dead in a puddle of water and glass. What happened?

Question: On 20 planes I may be, but only rest on one you see. I can help you or hurt you, depending on where I lay. Because I am not the kind you use everyday

Question: Who is reading this question now?

Question: I have no heart Yet I can live Even if I have fallen Fires are my enemy You are my enemy

Question: What number is odd but then when i get one letter from it turns into EVEN