Answer:
I run through hills. I veer around mountains. I leap over rivers. And crawl through the forests. Step out your door to find me.
What is it that after you take away the whole some still remains?
You throw away my outside, you cook my inside. Then you eat my outside and you throw away my inside. What am I?
I go inside boots and outside shoes.
Everyone has me, but nobody can lose me. What am I?
I flow from the Homerβs mouth when he sees doughnuts.