Answer:
Why is leather armor best for sneaking?
You use a knife to slice my head but you weep beside me when I am dead
You can always find me in the past. I am created in the present, but the future can not change me. What am I?
I am a table you can eat. What am I?
My snake-like body cracks and burns. I cause pain but pleasure too. What am I?
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.