Answer:
It doesn't live within a house, nor does it live without. Most will use it when they come in, and again when they go out.
Runs smoother than any rhyme, loves to fall but cannot climb.
Without this, eating food and Steven Spielberg's career would be very different.
It can cause deflation of tires when dropped from the rear of spy cars.
I have a face, yet no senses. But I don't really care, because time is of the essence.
The strangest creature you'll ever find: Two eyes in front and many many more behind.