There are two major standard systems for paper in use around the world: a United States standard, based on traditional paper measurements in inches, and an international standard, which is based ...

But when you visit an office supply store, there isn’t a wealth of options. The standard paper size is 8.5 inches wide by 11 inches long. Which invites a bit of pulpy pondering: Who decided that?

The #A4waist challenge - in which women compare the size of their waists to the width of a standard A4 sheet of paper - started in China and prompted a huge online backlash. But what do some of ...