# Bonus Puzzler **URL:** \ **Category:** The Show\ **Created:** [July 25, 2014, 7:06am UTC](https://community.cartalk.com/t/bonus-puzzler/86212 "2014-07-25T07:06:17Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [July 25, 2014, 7:06am UTC](https://community.cartalk.com/t/bonus-puzzler/86212/1 "2014-07-25T07:06:17Z")
The last puzzler of the season was about the couple trying to get a free meal at a restaurant, claiming it was their wedding anniversary. For bonus points: If the same thing happened 100 years earlier, in 1914 instead of 2014, would the result be the same? ---
**Author:** ![ArlHtsMelissa](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/arlhtsmelissa/32/22867_2.png) [@ArlHtsMelissa](https://community.cartalk.com/u/ArlHtsMelissa)\ **Post date:** [July 25, 2014, 10:49pm UTC](https://community.cartalk.com/t/bonus-puzzler/86212/2 "2014-07-25T22:49:22Z")
I looked at the [http://www.cartalk.com/content/puzzlers#lastweekspuzzler](http://www.cartalk.com/content/puzzlers#lastweekspuzzler) and did not see that puzzle. What were the details of the puzzle? ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [July 26, 2014, 12:57am UTC](https://community.cartalk.com/t/bonus-puzzler/86212/3 "2014-07-26T00:57:29Z")
From the archives: [http://www.cartalk.com/content/free-anniversary-dinner-0?question](http://www.cartalk.com/content/free-anniversary-dinner-0?question) ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [July 26, 2014, 3:31am UTC](https://community.cartalk.com/t/bonus-puzzler/86212/4 "2014-07-26T03:31:16Z")
It’s the 7.3.2014 show’s puzzler. Click above on “our show”, then “puzzler”, then “archives” (for 2014). Note: You might be confused b/c there’s puzzlers posted after that date on the website, but those were not recently broadcast. They’re for listeners who want to do a puzzler once week even if the “Puzzler” doesn’t appear on the show during the summer. ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [July 26, 2014, 5:59am UTC](https://community.cartalk.com/t/bonus-puzzler/86212/5 "2014-07-26T05:59:04Z")
Answer: It wouldn’t work in 1914 because 1900 wasn’t a leap year. ---
**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\ **Post date:** [July 26, 2014, 5:58pm UTC](https://community.cartalk.com/t/bonus-puzzler/86212/6 "2014-07-26T17:58:54Z")
That’s true because a centennial year must be divisible by 400. ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [July 26, 2014, 6:33pm UTC](https://community.cartalk.com/t/bonus-puzzler/86212/7 "2014-07-26T18:33:19Z")
For double bonus points: If the same thing happened in 1914 in St. Petersburg, Russia, would the result be the same? ---
**Author:** ![ArlHtsMelissa](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/arlhtsmelissa/32/22867_2.png) [@ArlHtsMelissa](https://community.cartalk.com/u/ArlHtsMelissa)\ **Post date:** [July 26, 2014, 6:41pm UTC](https://community.cartalk.com/t/bonus-puzzler/86212/8 "2014-07-26T18:41:22Z")
Thu 7/23/1885; Fri 7/23/1886 (+28 years) = Thu 7/23/1914; Wed 7/23/2014 - Microsoft Outlook Calendar ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [July 29, 2014, 7:42am UTC](https://community.cartalk.com/t/bonus-puzzler/86212/9 "2014-07-29T07:42:27Z")
You are right @insightful and @missileman , and as verified by @ArlHtsMelissa‌ . For the repeat to work, all years evenly divided by four in the time interval of interest must be a leap year. But the way the calendar works to keep the seasons matching to the months, years ending in “00” – centennial years – are only a leap year if they are evenly divisible by 400. 2000 is. 1900 isn’t. Good job everybody! ---
**Author:** ![Mechaniker](https://avatars.discourse-cdn.com/v4/letter/m/13edae/32.png) [@Mechaniker](https://community.cartalk.com/u/Mechaniker)\ **Post date:** [July 29, 2014, 11:52am UTC](https://community.cartalk.com/t/bonus-puzzler/86212/10 "2014-07-29T11:52:48Z")
" years ending in “00” are only a leap year if they are evenly divisible by 400." * * * So are the years 4000, 8000, etc. leap years? (Look before you jump!) ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [July 30, 2014, 7:49am UTC](https://community.cartalk.com/t/bonus-puzzler/86212/11 "2014-07-30T07:49:24Z")
True, it may be a little out of sync by then, but I’m not doing much worrying about it … lol … ---
**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\ **Post date:** [July 30, 2014, 10:13pm UTC](https://community.cartalk.com/t/bonus-puzzler/86212/12 "2014-07-30T22:13:47Z")
For triple bonus points: Why won’t the calendar ever get out of sync again? Edit: Trick question; @Mechaniker gives a clue.