Keeping your mind healthy is as important as looking after your body. One of the best ways to give your brain a workout is by challenging yourself to complete tricky brain teasers.
These types of puzzles are a great way of helping to improve the brain's ability to perceive and interpret visual information accurately, and with a little practice, you could train your brain to crack difficult teasers in no time.
So, if you're looking for a way to boost your brain power, why not see if you can solve this tricky teaser that's been leaving many people confused. All you have to do is work out which of the three runners pictured below is cheating.
