Answer:
I am longer than a decade and shorter than a millennium
When you need me, you must find me. When you find me, you no longer need me. What am I?
My snake-like body cracks and burns. I cause pain but pleasure too. What am I?
I go around a yard but do not move. What am I?
What's the capital of France?
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.