Answer:
What color can you eat?
Crooked as a rainbow and slick as a plate, ten thousand horses can't pull me straight. What am I?
The more you take of me the more you leave behind.
I come with a train and go with a train and the train doesn't need me but can't go without me.
I can fly but I have no wings. I can cry but I have no eyes. Wherever I go, darkness follows me. What am I?
Said to have fifty shades