Answer:
What is it that no man ever saw, which never was, but always will be?
What hatches without food?
A tower at the root of all confusion.
I cannot be felt, seen or touched; Yet I can be found in everybody; My existence is always in debate; Yet there is a style of music named after me.
Touch this and you'll regret it. But if it's cold, you won't forget it. What is it?
Disgusting creatures that would survive a nuclear strike.