Answer:
What can travel around the world while staying in a corner?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.
With a halo of water and a tongue of wood, stone as skin long I stood. What am I?
I run smoother than any rhyme I love to fall but cannot climb.
Part carbon part water I am poison to the fishes. Many falsely claim my name I am the pause that refreshes.
I am used for light yet I am solid. Without me you would feel enclosed. I hate being touched especially with a lot of force. I like to be in buildings.