Answer:
I'm a god. I'm a planet. I measure heat.
A man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?
I am seen in the water. If seen in the sky, I am in the rainbow, a jay's feather, and lapis lazuli.
Long and slinky like a trout, never sings till it's guts come out.
It is greater than God and more evil than the devil. The poor have it, the rich need it, and if you eat it you'll die.
You use it between your head and your toes, the more it works the thinner it grows.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?