Answer:
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.
What is round as a dishpan, deep as a tub, and still the oceans couldn't fill it up?
The eight of us move forth and back. To protect our king from the foes attack.
I can be moved. I can be rolled. But nothing will I hold. I'm red and I'm blue, and I can be other colors too. Having no head, though similar in shape. I have no eyes - yet move all over the place.
An open ended barrel, it is shaped like a hive. It is filled with the flesh, and the flesh is alive!
I’m grown from darkness but shine with a pale light. Very round I am and always a lady's delight.