Answer:
What has many teeth but can't bite?
I am clean when Iām black dirty when Iām white.
If you're looking for something sweet I know what to do. But if you don't like heat I'm not for you.
What do people spend a lot of money on every year, but never want to use?
Everyone asks for me but yet everyone hates to face me. For someone I am agony, for others I am relief! What am I?
Before I grow I'm small. When I'm old I grow tall. When I die I give a mighty fall.