Author Archives: Alok Goyal

Solution to Puzzle #162: Who Finished 2nd in 100m?

Posted on January 22, 2017 by Alok Goyal

Suman Saraf rightly reminded me that I had not posted the solution for this puzzle. My apologies. Many people did this correctly. Mahi Saraf, Anisha Sharma Goyal, Pratik Poddar, Abhinav Jain and Vishal Poddar all sent correct answers – well … Continue reading →

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Puzzle #166: Donut Sharing

Posted on January 15, 2017 by Alok Goyal

This puzzle is a variation of a puzzle I had posted very early (amongst my first 10 posts). It is very simple, and intended for children. Thanks to Suman Saraf for contributing this one. Alice and Bob go into their … Continue reading →

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Solution to Puzzle #163: The “Hatke” Puzzle

Posted on January 15, 2017 by Alok Goyal

This was a truly “hatke”or a “wierd” puzzle. Unfortunately as it turned out the answer is not very elegant and not very “correct” either. That said, it was a good exercise to exercise the brain, and I got the best … Continue reading →

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Solution to Puzzle #164: The Physics Puzzle

Posted on January 8, 2017 by Alok Goyal

I am posting the solution for Puzzle #164 before I do so for puzzle #163, which I will do next week. It was not too difficult a puzzle, and even if you did not try it with your children, please … Continue reading →

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Puzzle #165: Truth & Lies – 7 of them!

Posted on January 8, 2017 by Alok Goyal

Welcome back, and a very happy new year to all of you. Lets start with a new puzzle before I post solutions to previous problems. I will begin this week with a very nice puzzle from the NSA collection. Here … Continue reading →

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Puzzle $164: The Physics Puzzle

Posted on December 11, 2016 by Alok Goyal

Here is the second one for today, and something to keep you all occupied in the holidays, even though I know you all will have better things to do like beach, snow, …. This one is contributed by Suman Saraf, … Continue reading →

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Puzzle #163: The “Hatke” Puzzle

Posted on December 11, 2016 by Alok Goyal

Friends, I am going to be traveling/ on vacation over the next few weekends and hence taking the liberty of posting two puzzles this weekend, and restart in the weekend of Jan 6th. This one is a very “hatke” (in … Continue reading →

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Solution to Puzzle #161: Lost Car Key Puzzle

Posted on December 11, 2016 by Alok Goyal

Apologies for not posting the answer last weekend, I was traveling again 🙂 I guess conditional probability puzzles are not the most popular, I got correct answers only from Suman Saraf and Pratik Poddar, even though I thought that the … Continue reading →

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Puzzle #162: Who finished 2nd in 100m?

Posted on November 27, 2016 by Alok Goyal

Very nice puzzle from the NSA collection. We have seen versions of this in the past, I loved this one as well. Three athletes (and only three athletes) participate in a series of track and field events. Points are awarded … Continue reading →

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Solution to Puzzle #160: $50 for All

Posted on November 27, 2016 by Alok Goyal

This was a tough puzzle, and only two people sent correct answers – Suman Saraf (and his daughter) and Pratik Poddar – hats off to both of you! I am copying the answer from the original source: The 2-person case … Continue reading →

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