Answer:
I am a word of letters three. Add two and fewer there will be. What word am I?
What kind of cheese is made backwards?
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 ring but no fingers. I used to stay still all the time but nowadays I follow you around.
I belong to everyone. Sometimes make you happy sometimes make you sad. I will never end until the day you do.
I am your mother's brother's only brother in law. Who am I?