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 am I?
What goes up and down stairs without moving?
I go up and I go down, towards the sky and the ground. Iβm present and past tense too, letβs go for a ride, me and you. What am I?
I am the beginning of eternity the end of time and space the beginning of every end the end of every place.
I have a lot to say but can't be heard because I can't speak one single word. What am I?
What language does a billboard speak?