Answer:
Talks like this, a green wise man does. Guess my clue, you will.
I am what remains when nothing is left.What am I?
Man walks over, and man swims under. In times of war, it can be burned asunder. What is it?
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.
There is a puzzle which can be asked all day with a different correct answer each time. What is the puzzle?
I will disappear every time you say my name.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?