Answer:
Through its wounds, water does run. It once held many but now has none. What is it?
What asks but never answers?
What has a bell but isn't a church. Is full of air but is not a balloon?
The man who made it didn't need it. The man who bought it didn't use it. The man who used it didn't want it.
Hard to catch, easy to hold. Can't be seen, unless it's cold.
I start with T end with T and within me is T.