3 sizes for 19″ to 22″ wheels, with the heights and widths their makers list.
Nominal widths from the size code.
14.0 inches wide (355 mm). The 355 only gives the width. Height comes from the rest of the size, so the 3 sizes of this width here run from 27.4″ to 33.2″ tall: 355/30R19 is about 27.4″, 355/25R21 is about 28.0″ and 355/40R22 is about 33.2″.
Some are. The 355 sizes that come out about 33″ tall are 355/40R22. 355s as a whole run from 27.4″ to 33.2″ tall, so check the full size, not just the width.
10 mm, or 0.39″ on paper: about 0.20″ more on each side.
The size code gives 14.0″. The widths the makers publish for the 3 355 tires here run from 14.2″ to 14.4″. Toyo publishes overall width; Michelin publishes section width.