Answer:
How can a pants pocket be empty and still have something in it?
What can you hold in your left hand but not in your right hand?
What goes through towns and over hills but never moves?
You fill it and it empties, A metaphor for plenty, Depending on what half you see, It's either full or empty
A setting that proved to be deadly for Abraham Lincoln.
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.