Answer:
I don't live within a house nor do I live without. Most will use me when they come in and again when they go out.
What has 3 feet but no toes?
I am an English word with three consecutive double letters. What am I?
I am a shiny metal sheet that covers BBQ food.
My rings are not worth much, but they do tell my age. What am I?
What made Cyclops quit teaching?