Answer:
A dragons tooth in a mortals hand I kill I maim I divide the land.
If you have me you want to share me. If you share me you don't have me. What am I?
As I went over London Bridge I met my sister Jenny; I broke her neck and drank her blood and left her standing empty.
My rings are not worth much, but they do tell my age. What am I?
I can go through glass without breaking it. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?