Monthly Archives: September 2015

Puzzle #116: The Magic Card Frame

Yet another wonderful numbers puzzle from Alok Mittal’s Mathematical Circles class. Not too difficult, and yet a lot of fun! Take 10 cards of the same suite from Ace (A) through 10, i.e. essentially numbers 1-10. Using each card exactly … Continue reading

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Solution to Puzzle #114: 1978

This was a relatively simple puzzle and the number of people who sent correct answers was overwhelming. I will try to capture as many as I can – Ishir Gupta (only one not to use algebra), Pratik Poddar, Suman Saraf, … Continue reading

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Puzzle #115: The First Rabbit

This is a puzzle I got recently from my daughter, Anisha, who in turn got this puzzle from Alok Mittal’s Mathematical Circles Class. There is an island on which a rabbit arrives. Rabbit reproduces, as part of which it gives … Continue reading

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Solution to Puzzle #113: Magic Arrangement of Cards

I got an overwhelming response to this puzzle – so many that putting down the names of correct answers is not feasible. This was also the best viewership of the blog for any week since I started this blog – … Continue reading

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Puzzle #114: 1978

This is a puzzle for the number buffs that I found on http://www.mindcipher.com The year 1978 is such that the sum of the first two digits and the latter two digits is equal to the middle two digits, i.e. 19 … Continue reading

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Solution to Puzzle #112: Weights and Balance Revisited

As I mentioned in the question, this is an age old problem, but I was still intrigued by the twist provided to this puzzle by a colleague’s daughter. Many people gave a correct answer to the first two parts of … Continue reading

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Puzzle #113: Magic Arrangement of Cards

This is a puzzle I have known for a very long time, and do not remember who asked me, I probably did it when I must have been around 15 years old. I loved this puzzle of cards. Unlike other … Continue reading

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