Answer:
I am always hungry I must always be fed. The finger I lick will soon turn red.
They took me from my mother's side where I was bravely bred and when to age I did become they did cut off my head. They gave to me some diet drink that often made me mad but it made peace between two kings and made two lovers glad.
What can you lose that will cause other people to lose theirs too?
Forward I am heavy backward I am not. What am I?
What goes up and down stairs without moving?
No matter how little or how much you use me, you change me every month.