Category: Puzzles

  • Google’s Employment Applicant’s Hourglass Problem

    Google’s Employment Applicant’s Hourglass Problem

    Ref: March 2012 issue of Wired magazine. It seems the Google job interview process requires a problem to be solved. I’ll take this hourglass problem, “Using only a four-minute hourglass and a seven-minute hourglass, measure exactly nine minutes.” Solution Principle: Use one hourglass to measure out a smaller amount of time on the other hourglass. Repeat until…

  • Here’s A Little Brain Teaser

    Here’s A Little Brain Teaser

    Introduction My mentor drAnalog has advised me how to use Google Analytics to produce statistics of site visits. The analysis has thrown up some interesting results and from them I have concocted a Brain Teaser for your delight. Sorry no prizes given but you have the satisfaction of taking part. My Brain Teaser Some Derby…