Answer:
What is light as a feather but even the strongest man cannot hold it for more than a few minutes?
Iron roof, glass walls, I burn and burn but never fall. What am I?
My first is high my second damp my whole a tie a writer's cramp.
So simple, that I can only point. Yet I guide men all over the world.
Forward I am heavy backward I am not. What am I?
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.