Answer:
Tear one off and scratch my head what was red is black instead. What is it?
I am always hungry, I must always be fed. The finger I lick will soon turn red. What am I?
Take off my skin I won't cry but you will.
Only one color, but not one size, stuck at the bottom, yet easily flies. Present in sun, but not in rain, doing no harm, and feeling no pain. What am I?
I am expelled from you orally with a sound
You can always see it, but it's too far away to touch. Mountains rest on it, and at sea it surrounds you. What is it?