Answer:
There is a creature of God whose body is hardΝΎ it does not wish to eat unless you strike its head.
I am the tool, for inspiring many. Buy me in the store, for not much more than a penny. Don't overuse me, or my usefulness will go.
I saw a strange creature. Long, hard, and straight, thrusting into a round, dark opening. Preparing to discharge its load of lives. Puffing and squealing noises accompanied it, then a final screech as it slowed and stopped.
What can answer in any language? What can speak without a mouth? What can sing without an ear?
He has married many women, but has never been married. Who is he?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.