Answer:
You can catch me but cannot throw me. What am I?
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?
I make you weak at the worst of all times. I keep you safe, I keep you fine. I make your hands sweat and your heart grow cold. I visit the weak, but seldom the bold. What am I?
What's made of water but if you put it into water it will die?
Never resting, never still. Moving silently from hill to hill. It does not walk, run or trot. All is cool where it is not. What is it?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.