Answer:
Crooked as a rainbow and slick as a plate ten thousand horses can't pull me straight.
I can fly but I have no wings. I can cry but I have no eyes. Wherever I go darkness follows me.
I have skin, more eyes than one. I can be very nice when I am done. What am I?
When you are inside me you will be encouraged to slam other cars.
What can fill a room but takes up no space?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.