Tag Archives: logic puzzles

Solution to puzzle #41: Yet Another Handshake Puzzle

Posted on November 30, 2013 by Alok Goyal

I was surprised this time to see only one correct answer from Alok Kuchlous, one of the best puzzle solvers I have known since my IIT days. I also got a very good attempt from Shruti Mittal (from Mumbai), but … Continue reading →

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Puzzle #41: Yet Another Handshake Puzzle

Posted on November 23, 2013 by Alok Goyal

This is yet another handshake puzzle, and again from one of the Martin Gardner collections. This one is from Second Book of Mathematical Diversions and Puzzles…Martin Garder, Page 55 Here is the puzzle: Prove that a t a recent convention of biophysicists … Continue reading →

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Solution to Puzzle #38: Famous Handshake Puzzle

Posted on November 9, 2013 by Alok Goyal

I got only one correct answer for the puzzle, from Anku Jain – Well done and thanks! Anku’s answer was better explained than the source itself, and hence taking the liberty of reproducing his answer verbatim here. Assuming, no one … Continue reading →

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Puzzle #38: Famous Handshake Puzzle

Posted on November 2, 2013 by Alok Goyal

This one is one of my favorites from the Martin Gardner collection: My wife and I recently attended a party at which there were four other married couples. Various handshakes took place. No one shook hands with himself or herself … Continue reading →

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Puzzle #36: Professor on the Escalator

Posted on October 20, 2013 by Alok Goyal

This is a very tantalizing puzzle from one of the Martin Gardner books “More Mathematical Puzzles and Diversions” (Chapter 14, Puzzle #4). When Professor Stanislaw Slapenarski, the Polish mathematician, walked very slowly down the down-moving escalator, he reached the bottom after taking 50 steps. As … Continue reading →

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Solution to Puzzle #35: Staying Alive in a Desert

Posted on October 20, 2013 by Alok Goyal

I got a lot of responses to this puzzle, one of the highest responses I have had ever. Also, most of the answers were correct, and had a similar theme. The answer does not necessarily require a video, and hence … Continue reading →

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Puzzle #35: Staying Alive in a Desert

Posted on October 14, 2013 by Alok Goyal

I saw this puzzle at the recently organized TiE Conference in Delhi – so thanks to Priya who posted this puzzle. Here it goes: You are a traveler in a desert full of mosquitoes. You know that if you get … Continue reading →

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Solution to Puzzle #33: Running in Circles

Posted on October 5, 2013 by Alok Goyal

Thanks again to Maneesh Dube for sending me this puzzle. Many people responded to this, however only a few got back to me with a complete answer. The ones who answered completely are Vikas Jangra and Ruchir Godura. Many others, … Continue reading →

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Solution to Puzzle #32: Removing the Coins

Posted on September 28, 2013 by Alok Goyal

This was a relatively simple puzzle, though surprisingly I got very few answers – I guess people do not like geometric puzzles as much. I got three correct answers this time, including the one from Arushi (my 6 year old) … Continue reading →

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Solution to Puzzle #31: Which Day Does Rahul Speak the Truth

Posted on September 23, 2013 by Alok Goyal

I got many answers to this puzzle, and there was a very good response. Most of you answered the puzzle correctly. The first ones I got correct were from Anku Jain and Sid Pareek. The correct answer is Tuesday. Here … Continue reading →

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