Answer:
What can you catch but not throw?
Who is it that rows quickly with four oars, but never comes out from under his own roof?
Whilst I was engaged in sitting. I spied the dead carrying the living
The man who invented it doesn't want it. The man who bought it doesn't need it. The man who needs it doesn't know it. What is it?
A hole leading in, a hole leading out, we connect to a cavern that is slimy all throughout. What are we?
If lightning strikes an orchestra who is the one most likely to get hit?