Answer:
My teeth are sharp, my back is straight, to cut things up it is my fate.
Hands she has but does not hold. Teeth she has but does not bite. Feet she has but they are cold. Eyes she has but without sight.
My first master has four legs, my second master has two. My first I serve in life, my second I serve in death. Tough I am, yet soft beside. Against ladies cheeks I often reside.
A tree with 5 branches, no leaves and no fruits
What can you throw but not catch?
I have two eyes in the front and a lot of eyes on my tail