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Brain teaser: You’ll be crowned problem solver of the day if you crack this maths riddle

A brain teaser shared on Facebook puzzled users who tried solving the sequence.

Updated on: Aug 27, 2025, 03:39:49 IST
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Mathematics brain teasers have long captivated people who enjoy testing their logic and problem-solving skills. Beyond being fun pastimes, they act as stimulating exercises that keep the mind alert and agile. And if you enjoy unravelling such puzzles, here is a fresh challenge to put your skills to the test.

A tricky maths puzzle with a missing number sequence went viral online. (Facebook/Riddle Only)
A tricky maths puzzle with a missing number sequence went viral online. (Facebook/Riddle Only)

(Also read: Optical illusion: Only 5% of sharp-eyed people can spot all hidden numbers in this tricky puzzle)

The sequence puzzle

The puzzle, shared on Facebook by an account named Riddle Only, has left many scratching their heads. The teaser reads:

“What 3-digit number comes next in this sequence? – 131, 228, 331, 430, 531, 630, 731, ???”

Why maths brain teasers capture attention on the internet

One of the main reasons brain teasers go viral is their universal appeal. Unlike lengthy riddles or complex academic problems, short and sharp mathematical sequences can be attempted by almost anyone, regardless of age or background. They challenge the brain without overwhelming it, offering a quick burst of mental exercise that feels both fun and rewarding. Solving them brings a sense of instant gratification, almost like cracking a secret code, and that rush of accomplishment is what keeps people hooked.

The real question is: can you crack the sequence and determine the missing three-digit number? The puzzle is waiting, and the internet is buzzing with attempts. Will you be the one to get it right?

 
ABOUT THE AUTHOR
Mahipal Singh Chouhan

Mahipal Singh Chouhan is a Senior Content Producer at Hindustan Times Digital, with nearly five years of experience in digital journalism and content production. He primarily covers offbeat, trending and human-interest stories, with a focus on emerging social media trends, online conversations and real-world incidents that capture public attention. At Hindustan Times, Mahipal works on identifying and developing fast-moving digital stories, adding context and journalistic perspective to viral moments while maintaining accuracy, clarity and readability for online audiences. Before joining Hindustan Times Digital, he was associated with DNA India, where he gained experience in newsroom workflows and digital storytelling. He holds a degree in Journalism and Mass Communication from the Vivekananda Institute of Professional Studies, Delhi. Beyond journalism, he has a keen interest in history and sports and enjoys expanding his general knowledge.

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