Answer:
I am full of holes but still holds water.
I go up and never come down no matter how hard you wish. As I get higher more wrinkles crawl onto your face.
I can speak with my hard metal tongue. But I cannot breathe, for I have no lung. What am I?
I go around in circles, but always straight ahead, never complain, no matter where I am led.
Curtail me thrice I am a youth; behead me once a snake; complete I'm often used in truth when certain steps you'd take.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.