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‘Harvard University’ brain teaser that ‘95% couldn’t solve’ goes viral. Are you smart enough to crack it?

A user on X shared a mind-boggling brain teaser they attributed to a Harvard University interview. Can you figure it out? Reportedly, 95% couldn't.

Updated on: Sep 10, 2024, 07:24:40 IST
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Brain teasers offer a fun and engaging challenge to social media users, rewarding solvers with a quick sense of accomplishment. Do you love a good puzzle? This one, said to be from a Harvard University interview, has baffled people. Are you a genius who can solve it?

How many people do you think this ‘Harvard University’ brain teaser talks about? (Screengrab)
How many people do you think this ‘Harvard University’ brain teaser talks about? (Screengrab)

“Can you solve it? 95% couldn’t,” asked an X user and shared the brain teaser. “7 men have 7 wives. Each man and each wife have 7 children. Q: What's the total number of people,” reads the brain teaser.

The post has garnered several likes and comments. It has also been reshared across various social media platforms. Many tried cracking the puzzle and came up with various answers.

What did X users say about this puzzle?

“It looks tricky. 7 men + 7 wives = 14. No. of children for each man & each wife = 7. No. of children for each man with the seven wives = 49 (7×7). Overall no. of children = 343 (49×7). Total no. is 14+343 = 357,” suggested an X user. Another commented, “So my guess: 7 men and 7 wives means 7 couples. So each couple had 7 children so 7 * 7 = 49, and the total number of people are: 49 children + 7 men + 7 women = 63.”

Also Read: Brain teaser challenge: A man works 40+ hours but never sleeps, can you tell how?

A third questioned, “What's the correct answer and why?” A fourth wrote, “The two answers are correct, depending on how you interpret the question. If you interpret it as each man having 1 wife, the correct answer is 63 people. However, if you interpret it as each man having 7 wives, the correct answer is 399 people.”

What do you think is the correct answer to this brain teaser?

  • Trisha Sengupta
    ABOUT THE AUTHOR
    Trisha Sengupta

    Trisha Sengupta works as Chief Content Producer at Hindustan Times with over six years of experience in the digital newsroom. Known for her ability to decode the internet’s most talked-about moments, she specialises in high-engagement storytelling that bridges the gap between viral trends and traditional journalism. Throughout her tenure, Trisha has focused on the intersection of technology, finance, and human emotion. She frequently covers personal finance and real estate struggles in hubs like Gurgaon, Bengaluru, and Hyderabad, while also documenting the unique challenges of the NRI experience. Her work often highlights the movements and philosophies of global newsmakers and personalities like Elon Musk, Mukesh Ambani, Nikhil Kamath, Dubai crown prince, and MrBeast. From reporting on Amazon or Meta layoffs and startup culture to the emergence of AI-driven platforms like Grok and xAI, she provides a grounded and empathetic perspective on the stories shaping our world. When not decoding the internet, Trisha is likely offline: lost in a book, exploring a historical ruin, or navigating the world as a solo traveler. She balances her fast-paced career with family time and a healthy dose of curiosity, currently trading her "human" sources for silicon ones as she masters AI to future-proof her storytelling.Read More

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