Would be better to accept all alternatives that fit IMO. Once you know that the word starts and ends with A and is 9 letters long, there's no reason why Australia is a correct answer but Argentina isn't.
you should atleast give a decent hint for the first one because you just have to keep typing 4 letter countries, and if you forget it then you can't do the quiz at all.
You don't have to start with the first one - I suggest thinking about 3,5 or 3,6 or 3,7 first...
Plus, the colours of the column headings are the colours of the first 4-letter country's flag - I didn't advertise that because the instructions say that there aren't any hints!
Edit: I did that, changing Australia/Argentina to a 6-letter country which I'm pretty sure is the only A----A country there is.
I also changed the country before it - I think multiple-word countries are a bit easier, and the quiz was a bit tricky...
Thanks for the input, much appreciated.
Plus, the colours of the column headings are the colours of the first 4-letter country's flag - I didn't advertise that because the instructions say that there aren't any hints!