Simple Brainteasers That Bamboozle Most Adults! After A Children's Algebra Test Baffled Millions, These 15 Noodle-Scratching Conundrums Are Sure To Test You

Visual brainteasers are driving us mad. Earlier this week, what looked like a very basic children's algebra equation that involved apples, coconuts and a few bunches of bananas sent half of us up the wall. It looked simple. It sounded simple. But instead, we were left scratching our heads in despair. 

This is partly because while some stare and stare to no avail, others solve them in seconds. But also because when you do get the answer they're so brain-clangingly obvious you want to scream.

Dr Melina Kunar, a psychology professor at Warwick University, has reassuring news. She claims that while our ability to tackle some of the more logical tests may be linked to intelligence, there's little research to suggest our ability to spot shapes, patterns and anomalies in a picture has much to do with our IQ. 

But Dr Kunar insists we'd be well advised to rattle through a few visual brainteasers each morning, too. Put yourself to the test with these 15 challenging conundrums.

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