Answer:
I may seem real but it always turns out I was never there in the first place... you only see me during a certain resting stage.
I go up, let out a load and then go back down. What am I?
So simple, that I can only point. Yet I guide men all over the world.
I fly when I'm born. I lie when I'm alive. I run when I'm dead. 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?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.