Are you an expert codebreaker?

Are you a master at cracking codes? Prove your ability with this hand-picked selection of science-themed puzzles from Conundrum by Brian Clegg (£8.99, Icon Books).

So, grab a pen and paper and give your brain a workout. Challenge your friends and remember to let us know how you did on Twitter at @sciencefocus.

Try more quizzes:

• Are you smart enough to be an ISS astronaut?
• Can you solve these deviously difficult Stephen Hawking-inspired questions?

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