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Number riddle test: You're a true brainiac if you crack this tricky maths puzzle that confused the internet

A maths brain teaser posted on X challenged users with a tricky pattern-based puzzle.

Published on: May 27, 2025, 14:30:10 IST
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Maths brain teasers have always held a special charm—twisting logic, playing with perception, and often turning simple equations into complex mind games. These puzzles aren't just exercises in arithmetic; they test reasoning, attention to patterns, and the ability to think beyond the obvious. If you’re someone who relishes solving numerical riddles, the latest one doing the rounds on internet is likely to pique your interest.

Internet users were stumped by a maths riddle that twisted standard multiplication rules. (X/@ganeshuor)
Internet users were stumped by a maths riddle that twisted standard multiplication rules. (X/@ganeshuor)

(Also read: This challenging brain teaser has left the internet perplexed. Can you crack it?)

The maths teaser was recently shared on X (formerly Twitter) by an account named Ganesh UOR. The puzzle has caught the attention of many for its unusual patterns and tricky logic. It presents a series of mathematical equations that don’t seem to follow conventional rules:

"324 × 150 = 54, 251 × 402 = 48, 523 × 246 = 120, 651 × 345 = ?"

Four possible answers are provided:

(a) 120, (b) 85, (c) 60, (d) 144

Check out the puzzle here:

The challenge, of course, is to find the hidden logic behind the numbers. It’s not standard multiplication, and that's exactly what makes such puzzles go viral—they force the brain to search for an unconventional solution.

Earlier puzzle

This isn’t the first time a maths riddle has baffled the internet. A puzzle previously shared on Facebook by a page called Minion Quotes dared users to refrain from using calculators and trust their mental arithmetic. The puzzle read:

“Plz don't use calculator. Use your brain:

50 + 10 × 0 + 7 + 2 = ??”

Simple on the surface, this problem plays with order of operations, something even adults tend to overlook under pressure.

(Also read: Brain teaser: Only those with exceptional IQ can crack this tricky puzzle that 90% fail to solve)

Why do maths brain teasers go viral?

In the age of quick scrolling and short attention spans, brain teasers provide a momentary pause for mental stimulation. They offer a refreshing challenge, spark debates in comment sections, and trigger waves of nostalgia for schooldays spent solving tricky problems. Many users see them as a fun way to keep the mind sharp, while others find satisfaction in cracking what stumps the majority.

So—have you managed to crack the puzzle yet? Or are you, like many others, still trying to decode the pattern?

  • Mahipal Singh Chouhan
    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.Read More

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