A fiendishly tricky brainteaser has left people scratching their heads.

Maths may not have been everyone’s favourite subject at school, but it’s hard to deny that puzzles are a fantastic way to exercise our brains. Maintaining mental health is as crucial as physical well-being, and brainteasers serve as an excellent workout for the mind – they can enhance cognitive function and help ward off degenerative diseases like dementia.

So if you’re in the mood to challenge your brain today, why not…