Answer:
I am the heart that does not beat. If cut, I bleed without blood. I can fly, but have no wings. I can float, but have no fins. I can sing, but have no mouth.
What goes up when the rain comes down?
It's been around for millions of years, but is never more than a month old. What is it?
If a man carried my burden, he would break his back. I am not rich, but leave silver in my track.
A dragons tooth in a mortals hand, I kill, I maim, I divide the land.
Break me and I am better immediately set and harder to be broken again.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?