Answer:
I am black within and red without; with four corners round about. What am I?
Tear off my skin. I won't cry, but you will. What am I?
What can you break even if you never touch it?
The more you take of me the more you leave behind.
As I went over London Bridge I met my sister Jenny; I broke her neck and drank her blood and left her standing empty.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.