Answer:
I am a nut with a hole. What am I?
I am the book one can never finish reading
My head bobs lazily in the sun. You think I'm cute, for my face is yellow, my hair is white and my body is green. What am I?
If you break me, I'll not stop working. If you can touch me, my work is done. What am I?
I'll bring out your bulls and slow your roll. I may even come out of your skull.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.