Just 3 percent of people can find the rat in this sea of cats in less than seven seconds

You'll need razor sharp vision to beat the clock in this baffling .

Puzzles like this aren't just a way to pass the time now that the cold, rainy has settled in and the kids refuse to play outside. Research has actually found brainteasers can improve your cognitive ability, including your concentration and memory, as well as positively influence the central nervous system. There's even that found older adults who regularly take part in word and number puzzles have 'better brain function'. So, if you're keen to give your mind a mental workout and get competitive with your friends and family, we've got the perfect challenge for you to take on.

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In the image above you'll see a sea of the word 'CAT', but lurking amongst the blue font is actually the word 'RAT'. You'll need to find the hidden word in just seven seconds to rank in the top 97 per cent of participants. So, set your timers and get searching! We're not giving any clues for this baffling puzzle, but you can zoom in on the image to find the sneaky rat quicker. If you can't solve this brainteaser under the strict time limit, don't worry, just keep looking and see how long it actually takes you. Admitting defeat already, or reckon you've already cracked it? Be warned, we're about to reveal the answer.

If that feline turned rodent themed puzzle was no match for someone with 20/20 vision like yourself, fear not. It's now time to put your analytical and code-breaking skills to the ultimate test with this 'family-friendly' brainteaser. Don't be fooled though, it's far from easy.

Created by the Government Communications Headquarters (GCHQ), only those with the super intellect needed to protect the from evil and become a spy can solve this one. So, put on your 007 thinking caps and knuckle down. Are you ready? Let's see how quickly you can work out which of the following word or phrases is the odd one out...

• Catwoman
• Deus Ex Machina
• Parishioner
• Pyromania
• Scuba

If you're feeling a little stuck, you can find some handy on solving these kinds of puzzles from GCHQ itself. Think you've solved it? Well done, you can . Click here for more . Or, why not try these that can reveal certain parts of your personality.

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