Answer:
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.
There is a creature of God whose body is hard; it does not wish to eat unless you strike its head.
A house full, a yard full, a chimney full, no one can get a spoonful.
My first is second in line; I send shivers up your spine; not quite shining bright I glitter in the light.
What goes with a car, comes with a car, is no use to a car but a car cannot move without it?
What never gets any wetter no matter how hard it rains?