Answer:
When I get closer my tail grows longer, but when I go away my tail leads the way.
What has three ways out and just one way in?
What has two hands, a round face, always runs, but stays in place?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.
You can hold it without using your hands or arms. What is it?
I break away from my pack. I create holes in my victims. I can travel for miles and then disappear. I am part of a dying breed. What am I?