I can generate fear and some say I come out of your ears. I am as quite as a mouse but not welcomed in the house. What am I?

Answer: Smoke

More What am I ? with answers

More What am I ?

I can have any and all colors that exist, and yet I show none. My size and strength are immeasurably immense, and yet I am invisible to the naked eye. What am I?
I can help you to mend. I hide my body but never my head. What am I?
I can honk without using a horn. What am I?
I can invent dreams or open the skies. It's easy to use me, just close your eyes. What am I?
I can kill people, or cause great pain. You eat me. I can mean you’re crazy. I hold things together. I help climbers stay safe. I can replace a swear. And I’m on a violin. What am I?
I can never be stolen from you. I am owned by everyone. Some have more, some have less. What am I?
I can only be played on a windy day. What am I?
I can run but not walk. Wherever I go, thought follows close behind. What am I?
I can run constantly without ever getting tired. When I run, I frustrate people and drive them crazy, Yet I don't even have to move to irritate you. What am I?
I can sing, but I can't talk. I can climb a high tree, but can't run. I have very soft hair and a very hard mouth. What am I?
I can sizzle like bacon. I am made with an egg, I have plenty of backbone, but lack a good leg. I peel layers like onions, but still remain whole. I can be long, like a flagpole, yet fit in a hole. What am I?
I can speak with my hard metal tongue. But I cannot breathe, for I have no lung. What am I?