Answer:
With a halo of water and a tongue of wood, stone as skin long I stood. What am I?
Without a bridle or a saddle across a thing I ride a-straddle. And those I ride by help of me though almost blind are made to see.
The more you take of me the more you leave behind.
What can travel around the world while staying in a corner?
What has no beginning, end, or middle?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.