Answer:
Digital white-out.
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?
I am a word. I become longer when the third letter is removed. What am I?
In many hall ways you would stand if not with me in hand.
When I point up itβs bright. When I point down itβs dark.
When I'm born I fly. When I'm alive I lay. When I'm dead I run.