Answer:
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.
I am owned by the poor, the rich do not need me. If you eat me, you will die! What am I?
I am a chair that can move. What am I?
I run around the city but I never move.
I save lives on the ground and in the air. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.