Answer:
What runs around the whole yard without moving?
What goes up and down the stairs without moving?
Take one royal word in the plural and make it singular by adding one letter
What starts with an "e" but only has a single letter in it?
A young man wants to have it, but when he has it he no longer wants it. Blade in hand he attacks it And does his best to remove it. Yet he knows that it is all in vain.
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.