Answer:
I am a type of cheese made backwards
I am the book one can never finish reading
What kind of coat can only be put on when wet?
My full powers come when my makers are dead. I await a heavy hat to put on my head. What am I?
Break me and I am better, immediately set and harder to be broken again. What am I?
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.