Answer:
I am a desire to munch
The dirtier I get, the whiter I am. What am I?
I walk on 4 legs in the morning 2 legs at noon and 3 legs at night.
I build up castles. I tear down mountains. I make some men blind, I help others to see. What am I?
Why is leather armor best for sneaking?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.