CROSSING STATE LINES
Credit: GAMES Magazine - March, 2008
Dave Zobel  (adapted)

In an alphabetical listing of the 50 United States, two pairs of states appearing consecutively have something in common that none of the other 48 share. The two pairs are Florida/Georgia and Illinois/Indiana What do these two pairs of states have in common that distinguishes them from the others?

Answer:

They share a border.