Long Riddles and Answers

Question: If I am buying 9 for $1, 18 for $2, 125 for $3, and 1222 for $4, then what am I buying?

Question: I will give you power I will give you gold just to see who you really are!! Who am I?

Question: The more you work, the more I'll eat.You keep me full, I'll keep you neat. What am I?

Question: I drape the hills in white,
I do not swallow, but I do bite.

What am I?

Question: No matter how much rain comes down on it it won't get any wetter.

What is it?