Answer:
When young I am sweet in the sun. When middle-aged I make you gay. When old I am valued more than ever.
The last woman on Earth received a phone call. Who was the caller?
If I drink I die. If I eat I am fine. What am I?
I run smoother than any rhyme I love to fall but cannot climb.
I'm many people's favorite place, even though many don't remember their stay. You'll love to come but hate to leave. If you get cold, use my sleeve. What am I?
I will disappear every time you say my name.