Which state is divided into "boroughs" instead of counties?

Which four states meet at the Four Corners? Which state is the only one that borders just one other state? Which two states border the most other states, with eight each? Which state is divided into "parishes" instead of counties? Which state has a unicameral (one-house) legislature? Which state has the only non-rectangular state flag, shaped like a swallowtail pennant? Which state flag features the Big Dipper and the North Star? Which state flag features a grizzly bear?