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Brain teaser: Crack this mind-bending riddle to earn the title of logic master

A tricky riddle posted on Instagram challenged users to solve a number puzzle.

Updated on: May 13, 2025, 22:13:52 IST
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In a world saturated with information and short attention spans, brain teasers have carved out a unique niche as both entertaining distractions and stimulating mental challenges. These clever puzzles, often deceptively simple in presentation, invite users to pause their scrolling, test their logic, and spark lively debate in comment sections. Whether it’s a numerical conundrum or a family-based riddle, users find joy — and occasional frustration — in solving these mind-bending challenges that blend mathematics, reasoning, and a healthy dose of lateral thinking.

A brain teaser shared on Instagram stumped users. (Instagram/reel_serious)
A brain teaser shared on Instagram stumped users. (Instagram/reel_serious)

(Also read: Challenge your brainpower: You're a true puzzle master if you can crack this tricky brain teaser)

The puzzle

One such riddle, shared on the Instagram account Reel Serious, features a handwritten puzzle that has stumped the internet. The image shows a piece of paper held in someone’s hand, bearing a simple yet tricky question:

"I'm a 3-digit number. My second digit is 4 times as big as the third digit, and my first digit is 3 less than the second digit. What number am I?"

Take a look here at the puzzle:

This riddle is a classic example of numerical logic. Solvers are required to use basic arithmetic and deductive reasoning to decode the answer. It’s not just about guessing — it’s about applying what you know about digits and their possible combinations to find a logical fit.

(Also read: Test your visual skills: How many 8s can you spot in this mind-bending optical illusion?)

Earlier also, another riddle posted by the Facebook page Minion Quotes left users debating in the comments. The riddle reads:

"Mr Wang and Mrs Wang have 3 sons.

Every son has:

1 wife

1 son

1 sister

How many people in this family?"

Take a look here at the puzzle:

Such puzzles tap into common-sense logic rather than complex mathematics, and that's what makes them so engaging — and deceivingly tricky.

Why internet loves brain teasers?

From word games to number challenges, brain teasers are increasingly shared across social platforms as a form of entertainment and mental exercise. Not only do they engage the mind, but they also spark discussions as people debate and compare answers.

So, have you figured out the three-digit number yet?

  • 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. His work primarily focuses on offbeat and trending stories that reflect everyday experiences and evolving conversations on the internet. He has consistently worked on transforming viral content and human interest stories into structured news pieces that engage readers while maintaining editorial clarity. At Hindustan Times, Mahipal contributes to identifying and developing stories emerging from social media trends, online communities, and real-world incidents that capture public attention. His approach involves adding context and journalistic perspective to fast-moving digital narratives, helping present viral moments in a clear and reader-friendly format suited for digital audiences. Before joining Hindustan Times Digital, he was associated with DNA India, where he gained experience in newsroom workflows and digital storytelling practices. Mahipal holds a degree in Journalism and Mass Communication from the Vivekananda Institute of Professional Studies, Delhi. He is particularly interested in tracking emerging trends and understanding how online conversations evolve into broader public discussions. His work reflects a focus on accuracy, readability, and relevance in the rapidly changing digital news environment. Outside of his professional responsibilities, Mahipal takes an interest in history and sports and regularly works on improving his general knowledge, which complements his curiosity as a media professional.Read More

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