Answer:
When young, I am sweet in the sun. When middle-aged, I make you gay. When old, I am valued more than ever.
What can be seen but never found that only hides in the unwound?
When I live I cry, If you don't kill me I'll die.
What has a bell but isn't a church. Is full of air but is not a balloon?
They made me a mouth, but didn't give me breath. Water gives me life, but the sun brings me death.
I have two eyes in the front and a lot of eyes on my tail