Answer:
I'm white and used for cutting and grinding. When I'm damaged, humans usually remove or fill me. For most animals I am a useful tool. What am I?
I have a little pool with two layers of wall around it. One white and soft and the other dark and hard. What am I?
I can be repeated but rarely in the same way. I can't be changed but can be rewritten. I can be passed down but should not be forgotten.
I get dirty when wiping things clean. What am I?
I have no bed to sleep and no palace to live. I don't have a single coin but I am known as king. What am I?
A little house full of meat, no door to go in and eat.