Answer:
I cannot be burned in fire or drowned in water. What am I?
Flat as a leaf, round as a ring; have two eyes, can't see a thing. What am I?
I have a tongue, but cannot speak. I have a bed but cannot sleep. I have four legs but cannot walk. Yet I move as you do. What am I?
What is black when it's clean and white when it's dirty?
I am alive without breath and cold as death. I am never thirsty but always drinking.
The answer I give is yes, but what I mean is no. What was the question?