Answer:
The more you have me the less you see. Shine a light on me and I shall flee.
I start new then become old. Start clean but become dirty. I usually start big then become little. What am I?
When you take away the whole from me there is always some left.
I look at you you look at me I raise my right you raise your left.
If two's company and three's a crowd what are four and five?
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.