Answer:
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.
A nut cracker up in a tree.
Brown I am and much admired; many horses have I tried; tire a horse and worry a man; tell me this riddle if you can.
We are five little objects of an everyday sort, You will find us all in a tennis court.
Brings the sky a lot closer.