Answer:
When is 1500 plus 20 and 1600 minus 40 the same thing?
What has no hands but might knock on your door, and if it does you better open up?
What has only two words, but thousands of letters?
Old people and owls are said to be this.
Slang for the male half in a marriage.
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.