Answer:
I am a fire's best friend. When fat, my body fills with wind. When pushed to thin, through my nose I blow. Then you can watch the embers glow.
I climb higher when hot, But beware my rage, I’ll kill with a breath, If I can escape my cage
If eleven plus two equals one, what is nine plus five equal to?
You seek it out, when your hunger is ripe. It sits on four legs, and smokes a pipe.
Inside a burning house, this thing is best to make. And best to make it quickly, before the fire's too much to take.
I have two eyes in the front and a lot of eyes on my tail