Answer:
What can go through glass without breaking it?
Only two backbones and thousands of ribs.
You can spin, wheel and twist. But this thing can turn without moving.
What can you throw but not catch?
An open ended barrel, it is shaped like a hive. It is filled with the flesh, and the flesh is alive.
As round as an apple. As deep as a cup. All the king's horses can't pull it up.