Answer:
Plow and hoe, reap and sow, What soon does every farmer grow?
What has two legs but doesn't walk?
Thousands lay up gold within this house, But no man made it. Spears past counting guard this house, But no man wards it.
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.
Only two backbones and thousands of ribs.
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?