Answer:
A hill full, a hole full, yet you cannot catch a bowl full.
Thirty white horses on a red hill, first they champ, then they stamp, then they stand still.
A leathery snake, with a stinging bite. I'll stay coiled up, unless I must fight.
What flies around all day but never goes anywhere?
Golden treasure I contain, Guarded by hundreds and thousands. Stored in a labyrinth where no man walks, Yet men come often to seize my gold. By smoke I am overcome and robbed, then left to build my treasure anew
People take me on walks and I run and have fun. What am I?