Only people with a high IQ can solve 'impossible' brainteaser in 19 seconds

Put your observational skills to the ultimate test with this 'impossible' puzzle.

Brainteasers are a great form of - one that researchers say may improve your concentration levels and attention span - as well as boosting your mood. They're also a free and easy way to keep the little ones occupied in those moments where you just need a bliss moment of silence... Before all the arguments over who got the answer right first start.

Created by online language learning provider , this baffling is bound to leave you scratching your head. But, it's important one to try, as Preply are trying to raise awareness of sign language and how it can connect people together. "It's exciting to see the British government taking a significant step forward by introducing British Sign Language (BSL) as a GCSE subject in England from September 2025," they said. "This initiative highlights the importance of sign language and recognises it as a vital form of communication that, like any other language, deserves widespread understanding and respect."

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The image above displays an array of hands signing out the phrase 'I love you' in American Sign language. If you can spot the odd-one-out in less than 19 seconds, you've got a higher than average IQ. If you beat the record of finding it in just 10 seconds. Well, then you're an absolute genius... Albert Einstein, is that you? We're not giving away any clues for this one but it might be worth zooming in the picture to help you solve the puzzle quicker. Giving up and admitting defeat already? Scroll down to the bottom of the article to find out the answer.

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If that tricky brainteaser was no match for a brainy boffin like yourself, it's time to test yourself further with this ultra-challenging question. Created by the (GCHQ), only those fit to be a spy will be able to crack the code. So, put on your James Bond thinking caps and get ready to save the . All you have to do is work out which of the following word or phrase is the odd one out. There's no time limit, but if you really want to push yourself, see if you can solve this brainteaser in less than 30 seconds. Ready, steady, go:

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

Got it figured out - or lost all your remaining hope? You can .

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