Lesotho only borders South Africa Portugal only borders Spain Brunei only borders Malaysia East Timor only borders Indonesia Gambia only borders Senegal Qatar only borders Saudi Arabia South Korea only borders North Korea
There are others, but that's what I've got right now :)
Denmark only boarders Germany. Unless you count bridges and tunnels into it. Gibraltar only boarders Spain.
This post was edited by Benedict Arnold at March 9, 2017 9:43 AM MST
I ran into trouble in Tasmania back in the 1990s. I'd just been to New Zealand and was at a function in Launceston (Tas) when somebody asked me where I was from. "Austrralia," I said, and immediately realised my gaffe. People in Tasmania don't like us to think that they're not part of Oz. :(