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You're stuck at work and the weekend seems desperately far away... it must be time to take a quiz on the internet.
A tricky little quiz has been published by the clever people over at Playbuzz which features problem solving and riddles.
Quiz creator Terry Stein claims that 'only people with a PhD can solve these brain teasers', adding that they've tested the quiz on 100 university students.
As someone distinctly lacking in the PhD department, I was pleasantly surprised when I managed to score 10 out of 10.
So, do let us know how you get along!
Can't see the quiz? Click here.
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