Answer:
A dragons tooth in a mortals hand I kill I maim I divide the land.
The person who makes me doesn't need me. The person who buys me doesn't use me. The person who uses me doesn't know it. What am I?
Brown I am and much admired. Many horses have I tried. Tire a horse and worry a man, tell me this riddle if you can. What am I?
Of these things - I have two. One for me - and one for you. And when you ask about the price I simply smile and nod twice.
I lose my head in the morning and regain it back at night. What am I?
A little house full of meat, no door to go in and eat.