Answer:
Though not a plant I have leaves. though not a beast I have spine. Though many wouldn't need me I am more valuable than wine.
Goes over all the hills and hollows, Bites hard, but never swallows.
I am easy to waste and unstoppable. What am I?
I am a king who’s good at measuring stuff. What am I?
I am the kind of an ant that's good at math. What am I?
What never gets any wetter no matter how hard it rains?