Answer:
You can read me both ways I wear; One way it's a number reversed a snare.
When young, I am sweet in the sun. When middle-aged, I make you gay. When old, I am valued more than ever. What am I?
What has no beginning, end, or middle?
I can be cracked, made, told, and played. What am I?
When you stop and look you can always see me. If you try to touch you cannot feel me. I cannot move but as you near me I will move away from you.
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.