Answer:
There are several different kinds, but the one you pick doesn't do its job. What is it?
John was going to a party and, as he approached, he could see in the windows that it was completely packed with people. He went inside only to discover that there wasn’t a single person inside
You eat something you neither plant nor plow. It is the son of water, but if water touches it, it dies.
Three lives have I. Gentle enough to soothe the skin. Light enough to caress the sky. Hard enough to crack rocks.
People are hired to get rid of me. I'm often hiding under your bed. In time I'll always return you see. Bite me and you're surely dead.
I am a animal that is cute but dangerous, what am I?