Answer:
What has four legs during the day; and six or eight during the night?
Ripped from my mother's womb. Beaten and burned, I become a blood thirsty killer.
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around
This thing runs but cannot walk, sometimes sings but never talks. Lacks arms, has hands; lacks a head but has a face.
What's black when you get it, red when you use it, and white when you're all through with it?
I repeat only the last word you say. The more I repeat, the softer I got. I cannot be seen but can be heard. What am I?