I thought it was the first man who knew. My head is reeling!! <smile> Sue S. ----- Original Message ----- From: "Cindy" <popularplace@xxxxxxxxx> To: <bksvol-discuss@xxxxxxxxxxxxx> Sent: Sunday, August 17, 2008 8:35 PM Subject: [bksvol-discuss] Re: Logic Puzzles, Brain Teasers, and Riddles Jake's given you the solution--only I'll one one little thing. There's a pause... when neither of the other two answered and said what color his hat was, then the third man knew and answered. Cindy --- On Sun, 8/17/08, Jake Brownell <jabrown@xxxxxxxxx> wrote: > From: Jake Brownell <jabrown@xxxxxxxxx> > Subject: [bksvol-discuss] Re: Logic Puzzles, Brain Teasers, and Riddles > To: bksvol-discuss@xxxxxxxxxxxxx > Date: Sunday, August 17, 2008, 6:19 PM > I'll give this a stab. > > Let's call the shortest man 1, the middle man 2 and the > tall man 3. > > We know that #1 and #2 are not both wearing white hats, > because if they were > then #3 must be wearing a black hat and #3 would know it > (because there are > only 2 white hats). > > It then follows that #1 and #2 must be wearing some > combination of: > #1 white and #2 black > #1 black and #2 white > #1 black and #2 black > > If #2 knows that #1's hat is white, then #2 knows that > his own hat must be > black, because otherwise it would have been white and #3 > would have known > the color of his hat. > Since #2 didn't know the color of his hat this > alternative isn't possible. > > Since the remaining alternatives both have #1 with a black > hat, we now know > the reasoning and the color. > > Cheers, > Jake > ----- Original Message ----- > From: "Chela Robles" > <cdrobles693@xxxxxxxxx> > To: <bksvol-discuss@xxxxxxxxxxxxx> > Sent: Sunday, August 17, 2008 8:04 PM > Subject: [bksvol-discuss] Re: Logic Puzzles, Brain Teasers, > and Riddles > > > > Hello all, I know I'm behind the times with email > but I'm trying to > > catch up, now that I have stable internet connection, > I have a puzzle > > for you all to solve, that is, if any of you can solve > it, my sister, > > Brittnee, is a senior in high school taking algebra 2, > and wanted me > > to help her with this puzzle, however I'm stumped, > and this has been a > > very interesting 24 hours minus sleep time and church, > to think of how > > to solve it, so here it goes. > > Black And White Hats > > Cannibals ambush a safari in the jungle and capture > three men. The > > cannibals give the men a single chance to escape > uneaten. > > > > The captives are lined up in order of height, and are > tied to stakes. > > The man in the rear can see the backs of his two > friends, the man in > > the middle can see the back the man in front, and the > man in front > > cannot see anyone. The cannibals show the men five > hats. Three of the > > hats are black and two of the hats are white. > > > > Blindfolds are then placed over each man's eyes > and a hat is placed on > > each man's head. The two hats left over are > hidden. The blindfolds are > > then removed and it is said to the men that if one of > them can guess > > what color hat he is wearing they can all leave > unharmed. > > > > The man in the rear who can see both of his > friends' hats but not his > > own says, "I don't know". The middle man > who can see the hat of the > > man in front, but not his own says, "I don't > know". The front man who > > cannot see ANYBODY'S hat says "I know!" > > > > How did he know the color of his hat and what color > was it? > > > > > > On 8/12/08, Bob <rwiley@xxxxxxxxxxxxx> wrote: > >> Hi Jim. The only book I can think of is "are > you smarter than a fifth > >> grader?" that is in the collection. > >> > >> However, you can check out > >> http://www.braingle.com./ > >> This is a site with all sorts of brain teasers and > puzzles. > >> > >> I especially like the fractured phrases section. > It presents garbled > >> phrases > >> that, once straightened out, are well known > sayings. I used to use this > >> when > >> teaching folks to cut and paste on the computer. > It made a boring subject > >> more tolerable. > >> > >> Check it out. > >> > >> Bob > >> ----- Original Message ----- > >> From: <james.homme@xxxxxxxxxxxx> > >> To: <bksvol-discuss@xxxxxxxxxxxxx> > >> Sent: Tuesday, August 12, 2008 6:52 AM > >> Subject: [bksvol-discuss] Logic Puzzles, Brain > Teasers, and Riddles > >> > >> > >>> > >>> Hi, > >>> A couple of years ago now, my best friend > passed away. His little girl > >>> really likes this sort of thing. Do we have > any books in the collection > >>> with this kind of stuff, or fun facts or > trivia that might interest > >>> people > >>> who are somewhere around nine years old? > I'd like to read it and have > >>> fun > >>> with her when I see her. She is so quiet. I > never know what she's > >>> thinking, > >>> and I'd like to help her if she needs it. > >>> > >>> Thanks. > >>> > >>> Jim > >>> > >>> James D Homme, Usability Engineering, Highmark > Inc., > >>> james.homme@xxxxxxxxxxxx, 412-544-1810 > >>> > >>> "The difference between those who get > what they wish for and those who > >>> don't is action. Therefore, every action > you take is a complete > >>> success,regardless of the results." -- > Jerrold Mundis > >>> Highmark internal only: For usability and > accessibility: > >>> > http://highwire.highmark.com/sites/iwov/hwt093/ > >>> > >>> To unsubscribe from this list send a blank > Email to > >>> bksvol-discuss-request@xxxxxxxxxxxxx > >>> put the word 'unsubscribe' by itself > in the subject line. To get a list > >>> of available commands, put the word > 'help' by itself in the subject > >>> line. > >>> > >>> > >>> > >>> > >>> -- > >>> No virus found in this incoming message. > >>> Checked by AVG. > >>> Version: 7.5.524 / Virus Database: > 270.6.0/1603 - Release Date: > >>> 8/10/2008 > >>> 6:13 PM > >>> > >> > >> To unsubscribe from this list send a blank Email > to > >> bksvol-discuss-request@xxxxxxxxxxxxx > >> put the word 'unsubscribe' by itself in > the subject line. To get a list > >> of > >> available commands, put the word 'help' by > itself in the subject line. > >> > >> > > > > > > -- > > Chela > > E-Mail: cdrobles693@xxxxxxxxx > > WindowsLiveMessenger Only (PLEASE E-Mail ME BEFORE > ADDING ME TO YOUR > > CONTACTS!): cdrobles693@xxxxxxxxxxx > > > > Blog: http://www.1jtcdr.wordpress.com > > Facebook: > http://www.facebook.com/profile.php?id=690550695 (PLEASE > > E-MAIL ME BEFORE I EITHER ADD OR REJECT YOUR FACEBOOK > REQUESTS!) > > MySpace: http://www.myspace.com/chelarobles (AGAIN, > PLEASE E-MAIL ME > > BEFORE YOUR REQUEST IS IETHER REJECTED OR ACCEPTED!) > > Skype: jazzytrumpet (E-Mail ME ABOUT ADDING YOU ONTO > MY SKYPE CONTACTS > > BEFORE I GIVE A CONFIRMATION Of YES OR NO!) > > Mobile Phone: (925) 250-5955 (ONLY FOR THOSE WHO WORK > WITH ME, OR WHO KNOW > > ME) > > To unsubscribe from this list send a blank Email to > > bksvol-discuss-request@xxxxxxxxxxxxx > > put the word 'unsubscribe' by itself in the > subject line. To get a list > > of available commands, put the word 'help' by > itself in the subject line. > > > > > > > > -- > > No virus found in this incoming message. > > Checked by AVG. > > Version: 7.5.524 / Virus Database: 270.6.4/1616 - > Release Date: 8/16/2008 > > 5:12 PM > > > > > > To unsubscribe from this list send a blank Email to > bksvol-discuss-request@xxxxxxxxxxxxx > put the word 'unsubscribe' by itself in the subject > line. To get a list of available commands, put the word > 'help' by itself in the subject line. To unsubscribe from this list send a blank Email to bksvol-discuss-request@xxxxxxxxxxxxx put the word 'unsubscribe' by itself in the subject line. To get a list of available commands, put the word 'help' by itself in the subject line. To unsubscribe from this list send a blank Email to bksvol-discuss-request@xxxxxxxxxxxxx put the word 'unsubscribe' by itself in the subject line. To get a list of available commands, put the word 'help' by itself in the subject line.