Answer:
Come up and let us go. Go down and here we stay.
Reaching stiffly for the sky, I bare my fingers when its cold. In warmth I wear an emerald glove and in between I dress in gold.
What has roots that nobody sees, and is taller than trees. Up, up it goes, and yet it never grows.
What can be forever wound up but never annoyed?
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves every day. What am I?
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?