Answer:
What goes up but never comes down?
A house of wood in a hidden place. Built without nails or glue. High above the earthen ground It holds pale gems of blue.
I am the tool, for inspiring many. Buy me in the store, for not much more than a penny. Don't overuse me, or my usefulness will go.
I am a box that holds keys without locks, yet they can unlock your soul.
Thousands lay up gold within this house. But no man made it. Spears past counting guard this house, but no man wards it.
People take me on walks and I run and have fun. What am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?