Answer:
The dirtier I get, the whiter I am. What am I?
With three leaves, I am just a plant. Add another leaf and everyone will want me for good luck. What am I?
What type of house weighs the least?
You cannot keep me until you have given me. What am I?
What color can you eat?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.