Answer:
My teeth help me suck.
Soft, hairy, from door to door. I am the pet that always stays on the floor. What am I?
So simple, that I can only point. Yet I guide men all over the world.
I drive men mad for love of me, easily beaten, never free. What am I?
When it comes to me, you go on red and stop on green. What am I?
The sun bakes them, The hand breaks them, The foot treads on them, And the mouth tastes them. What are they?