Answer:
I am black of eye and bright of hair. I fast into the ground and follow my lord as he races around the world. What am I?
What body part is pronounced as one letter, but written with three, only two different letters are used?
score in end zones.
Take off my skin I won't cry but you will. What am I?
In buckles or lace I help set the pace. The farther you go the thinner I grow.
No matter how little or how much you use me, you change me every month.