Answer:
I am filled with garb the price is free. Just return what you don't need.
I may be made of metal bone or wood and have many teeth. My bite hurts no one and the ladies love me.
Of the king I am blue and of the peasant I am red. Of the frog I am cold and of the dog I am hot instead.
What is harder to catch the faster you run?
I am one with eight to spare, lest I lose my one. I'm not a number. What am I?
Give it food and it will live, give it water and it will die.