Answer:
Voiceless it cries, Wingless flutters, Toothless bites, Mouthless mutters. What is it?
What an fill a room but takes up no space?
Dies half its life. Lives the rest. Dances without music. Breathes without breath.
What's as small as a mouse but guards a house like a lion?
who do you think you know but sometimes you don't
I'm the source of all emotion but I'm caged in a white prison.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?