Answer:
Although it sounds like I work on a transportation device I actually work in a restaurant.
I can be thin but not fat; in your body but never on your placemat. I'm always better when I'm fresh but you'll never see me in the flesh.
I cannot be burned in fire or drowned in water. What am I?
Dead on the field lie ten soldiers in white killed by one blade yet there was no fight. What are they?
What is black when you buy it red when you use it and gray when you throw it away?
When is it bad luck to see a black cat?