Answer:
Although it sounds like I work on a transportation device I actually work in a restaurant.
I am black and white and full of fuzz
I begin and have no end. Eventually, I will be the ending of all that has begun. What am I?
I am always in front of you, but you will never see me. What am I?
I am higher than the king. What am I ?
No matter how little or how much you use me, you change me every month.