Think you could still get an A in Geography class, no problem? Try your hand at this quiz. It's a drag-and-drop fill in the blank country map and it's deceptively challenging.
Though there's no punishment (or eraser needed) if you foul up, the big red "X" and buzzer will let all know you don't know your Yemen from your Oman. Give it a go! I'm warning you though, those smaller countries can be slippery little suckers.