Answer:
What must be looked through in order to see?
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.
Tickle with your fingers and a song it will sing. Be careful, though, you may break a string. What is it?
You speak this when you are being sincere.
What is not a ball but yet a sphere, and holds all lands and people year after year?
I am a rock group with four members. All dead one was assassinated.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?