EDIT: If you're taking part in the league, we're currently using http://quizoftheday.co.uk/ ... if you've missed a day, you can access it from the archive here: http://quizoftheday.co.uk/archive/ ... please say which day (or quiz) you're posting, just so we can avoid confusion.
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It's a simple enough idea. Every day, they publish 10 multiple-choice general knowledge questions. What isn't simple is the questions. I've had a 2 or 3 many times. I've achieved 8 out of 10 a few times, but never the Holy Grail: 10 out of 10. The day that happens, I'll probably end up adding it to my CV.
Here's a link to today's. I got a very healthy 8, my lack of knowledge about the gait of Icelandic horses let me down...
http://www.theguardian.com/news/quiz/2013/dec/13/daily-quiz-13-december-2013