Answer:
Many people own a copy of me. Without me the world would fall.
I stand in one place yet fill the whole room. I can be filled with molten rock and come in every hue. 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?
Soft and cuddly I'll pull on your heart. But take my last name and I'll tear you apart.
Alone I am 24th with a friend I am 20. Another friend and I am unclean.
A man goes out in heavy rain with nothing to protect him from it. His hair doesn't get wet. How does he do that?