Answer:
I go inside boots and outside shoes. What am I?
I have all the knowledge you have. But I am so small that I can fit into your hands. What am I?
I climb higher as I get hotter. I can never escape from my crystal cage.
I am black of eye and bright of hair. I fast into the ground and follow my lord as he races around the world. What am I?
I am a mountain at night meadow at day
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.