I got them all bar the eleventh one. After a minute or so it came to me, but I spent 30 seconds swearing at the screen and scratching my head when the country wasn't accepted. Cue a large face palm when the time ran out.
I didn't even realize Kazakhstan's capital had been renamed back to Astana until I looked it up after this quiz. Love when things like that happen on this site.
It was, uh… a while ago, though. May have recovered since then.
OK that's a good one @FreeStater