Answer:
Why are football stadiums so cool?
What do you call a careful wolf ?
Why aren't Koalas actual bears?
Not a priest, not a king but wears different kinds of clothes.
What goes with a car, comes with a car, is no use to a car, but the car can't move without it?
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.