You'll need 'the best' eyesight to work out brainteaser in less than 90 seconds

One spine-chilling brainteaseris guaranteed to get your mind working as Halloween draws near.

The picturepuzzle from Northerner is tricky enough to keep you occupied for quite some time and could be perfect for keeping the kids entertained as well.

The puzzle makers reckon it takes roughly 82 seconds on average to spot all the concealed items, which featurethree cats and three ghosts. Brainteasers aren't merely a brilliant way to while away the hours as evenings grow longer and chillier - they're also beneficial for your mental wellbeing.

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Tackling demanding puzzles, brainteasers andoptical illusions could help enhance your cognitive abilities, increase productivity and sharpen memory.

Aaron Seitz, PhD, professor of psychology and director of the Brain Game Centre at the University of California in Riverside told Real Simple: "Studies show that staying mentally fit is important for long-term cognitive health, but the difficulty is figuring out exactly how to do it."

If you're struggling to locate some of the hidden items, don't fret. We've got the solutions for you to check below.

He noted that different games suit different people and discovering your personal challenge might be the most effective approach. He explained: "If you think about diet and exercise routines, some things work better for some people than others, and the same is true with brain games."

Whilst it remains unclear whether brain games and teasers genuinely boost your cognitive capabilities, they can help maintain relaxation and mental freshness, resulting in indirect advantages. Nicole M.

Avena, PhD, assistant professor of neuroscience at the Mount Sinai School of Medicine in New York City and visiting professor of health psychology at Princeton University, has shared her insights: "While some studies show that brain training games are not effective, the recollection and work that the brain does during these games keeps your mind fresh and alert.

"Brain functions that you practise during these games-and the repetition of them-can help improve response time and sharpness."

If you're game for a mental workout, there's a whole host of brainteasers waiting to be tackled. Whether they challenge your memory, quick-thinking or observational skills, nothing beats the rush of beating the clock.

Fancy finding a strawberry hidden among watermelons? Or perhaps you're up for something a bit more challenging, like spotting an animal concealed within a zig-zag image.

Or, test if you've got a 'highly intelligent mind' by figuring out the next number in a perplexing maths sequence.