India, May 6 -- There's something undeniably satisfying about cracking a good brain teaser - that moment when everything suddenly clicks into place. But when it comes to maths brain teasers, the thrill hits differently. With numbers, logic, and hidden patterns at play, these puzzles not only entertain but also give your brain a serious workout. One such maths teaser has recently gone viral on Facebook, leaving puzzle lovers scratching their heads and second-guessing their answers.

(Also read: This mind-bending brain teaser is ultimate test of your problem-solving abilities. Can you crack it?)

The post, shared by the Facebook account Minion Quotes, features a 3x3 grid with a simple instruction at the top: "Fill in the missing number." Bu...