Answer:
What moves without seeing and cries without eyes?
I appear in the morning. But am always there. You can never see me. Though I am everywhere. By night I am gone, though I sometimes never was. Nothing can defeat me. But I am easily gone.
When it comes in, From sea to shore, Twenty paces you'll see, No less, no more.
Pregnant every time you see her, yet she never will give birth.
A dragons tooth in a mortals hand, I kill, I maim, I divide the land.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?