Answer:
Runs smoother than any rhyme, loves to fall but cannot climb.
A precious stone, as clear as diamond. Seek it out while the sun's near the horizon. Though you can walk on water with its power, try to keep it, and it'll vanish in an hour.
Weight in my belly, Trees on my back, I travel fast in my place, but feet is a feature I lack
I have legs but walk not, a strong back but work not. Two good arms but reach not. A seat but sit and tarry not.
You can spin, wheel and twist. But this thing can turn without moving.
What never gets any wetter no matter how hard it rains?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?