Maths puzzles aren't just about solving a problem – they're also about reading the question carefully for any clues. And one particular conundrum is leaving grown-ups scratching their heads in ...

A new maths puzzle is leaving people scratching their heads as they struggle to work out the 100th digit in a sequence - as some say they 'don't even understand the question' ...

The puzzle was posted on Facebook by The Original 'Dude Comedy Showcase' and has garnered a whopping 15,000 likes and comments. The post reads: "Solve the riddle: I am a 4-digit number.