Answer:
I call the trees my home, yet I never go inside, and if I ever fall off the tree I will be surely be dead.
Tear one off and scratch my head, what once was red is black instead!
I am a king but also a common device of measure. What am I?
They come out at night without being called, and are lost in the day without being stolen. What are they?
What is taken before you can get it?
I am a room that has a roof but no walls. What am I?