Answer:
Crooked as a rainbow and slick as a plate ten thousand horses can't pull me straight.
The more you take away from me, the bigger I shall get. What am I?
Never resting, never still. Moving silently from hill to hill. It does not walk, run or trot. All is cool where it is not. What is it?
In my life I must bare my bloodline I must share.
You may enter, but you may not come in. I have space, but no room, I have keys, but open no lock. What am I?
A little house full of meat, no door to go in and eat.