Answer:
When set loose I fly away. Never so cursed as when I go astray.
I am a word of letters three. Add two and fewer there will be. What word am I?
I go up and never come down no matter how hard you wish. As I get higher, more wrinkles crawl on to the face. What am I?
Package beneath a tree, inside a tasty treat. Keep it for a month, the taste is just as sweet. What am I?
Who makes it, has no need of it. Who buys it, has no use for it. Who uses it, can't see it. What is it?
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.