Answer:
My teeth are sharp, my back is straight, to cut things up it is my fate.
Three little letters. A paradox to some. The worse that it is, the better it becomes.
If you're stealing honey, be prepared to receive vengeance in this form.
Add a T and I shoot through the sky. Then add an S and I multiply. What word is it?
Be sure to shout for its answers are weak, but there is no language it cannot speak.
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.