Answer:
With a halo of water and a tongue of wood, stone as skin long I stood. What am I?
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.
I am a key that is playful. What am I?
I can be thin but not fat; in your body but never on your placemat. I'm always better when I'm fresh but you'll never see me in the flesh.
What gets broken without being held?
I'm the source of all emotion but I'm caged in a white prison.