Monthly Archives: May 2013

Puzzle #18: Who will win the game?

Posted on May 26, 2013 by

Here is a two player game – there are three piles of stones: one with 10 stones, one with 15 stones, and one with 20 stones. At each turn, a player can choose one of the piles and divide it … Continue reading →

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Solution to Puzzle #17: Perfect Square with 0’s, 1’s and 2’s

Posted on May 26, 2013 by

Surprisingly I did not get any correct answers to the puzzle. The solution to the puzzle lies in divisibility rules – any number with 100 0’s, 1’s and 2’s will be divisible by 3 since the digits add up to … Continue reading →

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Puzzle #17: Perfect Square with 0’s, 1’s and 2’s

Posted on May 18, 2013 by

Since the previous puzzle was very tough, a relatively simpler problem. Can a number be written with one hundred 0’s, one hundred 1’s and one hundred 2’s be a perfect square. If yes, what is that number, if not, prove … Continue reading →

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Solution to Puzzle #16: Crossing the Desert

Posted on May 18, 2013 by

This is probably one of the tougher puzzles, and the responses indicate the same. I got only one answer for the puzzle, and once again, from Tishyaa – Thank you Tishyaa! 1. For the simpler puzzle, One needs to to … Continue reading →

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Puzzle #16: Crossing the Desert, a Classic Puzzle!

Posted on May 12, 2013 by

This is one of my favorites – I read this puzzle for the first time in 1992 on rec.puzzles (for those of you who remember these newsgroups!), and honestly have struggled with this ever since. I saw this puzzle again … Continue reading →

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Solution to Puzzle #15: The Early Commuter

Posted on May 12, 2013 by

I liked this puzzle because there is a seeming lack of data. When I came across this puzzle in February this year, I kept getting lost in too many variables! I got many correct answers and more comments than for … Continue reading →

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Puzzle #15: The Early Commuter

Posted on May 5, 2013 by

A commuter is in the habit of arriving at his suburban station each evening at exactly five o’clock.  His wife always meets the train and drives him home.  One day he takes an earlier train and arrives at his station … Continue reading →

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