Answer:
I have rivers without water. Forests without trees. Mountains without rocks. Towns without houses.
What's black when you get it, red when you use it, and white when you're all through with it?
I have a neck but no head. I have a body but no arm. I have a bottom but no leg.
Two in a whole and four in a pair. And six in a trio you see. And eight's a quartet but what you must get. Is the name that fits just one of me?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.
As round as an apple. As deep as a cup. All the king's horses can't pull it up.