What Am I Riddles

Question: What has a bed that you can't sleep in?

Question: What is only a small box but can weigh over a hundred pounds?

Question: A king without a crown.

Question: Resurrected, they descend by the millions. Sometimes, to nourish and give life. Other times, to take lives or destroy. They have been known to fill entire valleys and block roads only to disappear before executing their long journey back to the top. What are they?

Question: Look at my face, I am somebody. look at my back, i am nobody. What am I?