Answer:
I am owned by every man, though my length differs. Their wives use me after getting married. What am I?
I am flora, not fauna. I am foliage, not trees. I am shrubbery, not grass. What am I?
I build up castles. I tear down mountains. I make some men blind, I help others to see. What am I?
Part carbon, part water, I am poison to the fishes. Many falsely claim my name, I am the pause that refreshes. What am I?
With a halo of water and a tongue of wood, stone as skin long I stood. What am I?
I tell people to be careful when handling boxes.