Tag Archives: logic puzzles

Puzzle #160: $50 for All

Posted on November 6, 2016 by Alok Goyal

This is yet another beautiful puzzle from the NSA collection! At a work picnic, Todd announces a challenge to his coworkers. Bruce and Ava are selected to play first. Todd places $100 on a table and explains the game. Bruce … Continue reading →

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Puzzle #159:Winning Strategy with Coins

Posted on October 29, 2016 by Alok Goyal

This is a beautiful puzzle contributed by an ex-entrepreneur, Prateek Agarwal, who I met a few weeks back – thanks Prateek. You and your friend are playing a turn based game. There is a circular table of diameter 10cm and … Continue reading →

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Solution to Puzzle #157: Journey of a Monk

Posted on October 29, 2016 by Alok Goyal

This was a very nice puzzle – not an easy one and as such I received answers from the classical die hards. People who sent the correct answers include Suman Saraf and his daughter (I think age 10!), Sid Mulherkar, … Continue reading →

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Puzzle #157: The Journey of a Monk

Posted on October 16, 2016 by Alok Goyal

Thanks to Abhinav Jain for this wonderful puzzle! One morning at 6 am, a monk began climbing a tall mountain, which happened to only have one path to the top. He ascended the path at his leisure, taking some stops … Continue reading →

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Solution to Puzzle #150: The Tutu Coin Puzzle

Posted on September 4, 2016 by Alok Goyal

Thanks for the many messages I received for Tutu and his family, truly appreciate that! This was an already posted puzzle, so not many people responded. I got two more correct answers from Mohit Khare and Sunil Dhar – well … Continue reading →

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Solution to Puzzle #147: The “Aha” IBM Puzzle

Posted on August 8, 2016 by Alok Goyal

This was a beautiful puzzle, but I did not receive as many answers as I would have liked. Correct answers came from Pratik Poddar and Suman Saraf. My younger daughter, Arushi (9), solved it with some help. Answer to all … Continue reading →

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Solution to Puzzle #146: The Proud Party Goers

Posted on July 30, 2016 by Alok Goyal

Apologies for not being able to post last weekend, ended up in parenting duties more than I bargained for! This was not a very difficult puzzle, but I did not get as many solutions. Congratulations to Suman Saraf, Gautam Kumar … Continue reading →

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Puzzle #147: The “Aha” IBM Puzzle!

Posted on July 17, 2016 by Alok Goyal

Sometimes I worry whether I will continue to get good puzzles for children, but every such time one comes across some beautiful puzzle! I came across one such yesterday in Martin Gardner’s book “The Colossal Book of Short Problems and … Continue reading →

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Puzzle #146: The Proud Party Goers

Posted on July 10, 2016 by Alok Goyal

This is a very nice puzzle I got from a site (fivethirtyeight.com) recommended to me by Suman Saraf – thanks Suman. It’s Friday and that means it’s party time! A group of N people are in attendance at your shindig, … Continue reading →

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Solution to Puzzle #139: Gold Links

Posted on May 15, 2016 by Alok Goyal

Apologies for skipping last weekend, I was traveling on work! I got correct answers from three people – Pratik Poddar, Abhinav Jain and Suman Saraf. Well done! Most people thought binary, i.e. have links of size 1, 2, 4, 8, … Continue reading →

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