Answer:
My first 2 letters signify a male. My first 3 letters signify a female. My first 4 letters signify a great. I signify a great woman. What word am I?
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?
What two things can you never eat for breakfast?
An open ended barrel I am shaped like a hive. I am filled with the flesh and the flesh is alive.
My snake-like body cracks and burns. I cause pain but pleasure too. What am I?
No matter how little or how much you use me, you change me every month.