Tag Archives: Numbers puzzles

Solution to Puzzle #125: Test Your Creativity

Posted on January 10, 2016 by Alok Goyal

I was overwhelmed not only by the response, but also by the creativity. While I do not like to single people out, Suman Saraf turned out to be the champion of creativity on this one, had some remarkable variations that … Continue reading →

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Puzzle #126: The Tricky Square Root

Posted on January 2, 2016 by Alok Goyal

Here is another nice puzzle I saw on brilliant.org The figure states it all…Happy rooting!

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Solution to Puzzle #124: Add the Numbers

Posted on January 2, 2016 by Alok Goyal

Lot of correct answers to the puzzle – the ones who sent the correct answer include Siddharth Mulherkar (good to see you on the blog!), Sandeep Singhal, Ritesh Banglani, Aditya, Pratik Poddar, Suman Saraf, Karan Sharma (my nephew who gave … Continue reading →

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Puzzle #125: Test Your Creativity

Posted on December 26, 2015 by Alok Goyal

Here is a wonderful small teaser I got from the site brilliant.org. I have seen at least two solutions to this puzzle, so try your creativity, there might be more. Look at the equation 1     4     … Continue reading →

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Puzzle #124: Add the Numbers

Posted on December 13, 2015 by Alok Goyal

This is a gem of a puzzle that my nephew, Karan, gave to me yesterday. He and I came up with different ways to come to the answers, and there are probably many more ways. For all the possible 5 … Continue reading →

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Solution to Puzzle #119: A Prime Cryptarithm

Posted on November 10, 2015 by Alok Goyal

This was a slightly difficult problem for many people, though can be solved with some persistent trial and error. Girish Tutakne, Pradeep Hengavelli, Suman Saraf, Chandu Karan and Pooja Goyal+Arushi Goyal were the ones to send correct answers. I do … Continue reading →

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Solution to Puzzle #118: Rotating Disk

Posted on November 1, 2015 by Alok Goyal

This was a slightly difficult puzzle, and I got relatively few correct solutions. From Alok’s Mathematical Circles class, I know that several people were able to get the answer, that included Smiti Mittal (had a very innovative and simple answer) … Continue reading →

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Puzzle #119: A Prime Cryptarithm

Posted on October 25, 2015 by Alok Goyal

This is a wonderful puzzle taken from the book “The Moscow Puzzles” by Boris A. Kordemsky. This book has a great collection of puzzles. In this remarkable puzzle, each digit is a prime (2, 3, 5 or 7). No letters … Continue reading →

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Solution to Puzzle #117: Mr. Calendar

Posted on October 25, 2015 by Alok Goyal

Apologies for not posting last weekend, I was traveling on a short vacation! This was a relatively easy puzzle, many people sent me the correct answer. Folks who sent me the correct answer include Karan Sharma, Suman Saraf, Sanjeev Dugar, … Continue reading →

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Solution to Puzzle #116: The Magic Card Frame

Posted on October 11, 2015 by Alok Goyal

I got many correct answers for this puzzle as well and a very good response. People who sent correct answers included Chandu Karan, Divya, Suman Saraf (The most complete solution) and Pratik Poddar. I am reproducing the solutions from Suman, … Continue reading →

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