Answer:
Long and thin red within with a nail at the end.
As I went over London Bridge I met my sister Jenny; I broke her neck and drank her blood and left her standing empty.
Whoever makes it tells it not. Whoever takes it knows it not. Whoever knows it wants it not
I am a precious stone as clear as diamond. Seek me out while the sun's near the horizon. Though you can walk on water with my power try to keep me and I'll vanish in an hour.
I have an eye but I cannot see. What am I?
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.