I generally feel like I have a pretty good grasp of geography. Or not bad, at least.
Today at work I was doing foreign currency risk for a report, which involves looking at the investments of an entity in different countries. So I sat there mumbling to myself things like "Austria...Japan...Netherlands...South Africa..."
And then I came across it: The Sultanate of Oman.
What the heck country is that?
I had to google the answer.