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wu :: forums    riddles    easy (Moderators: william wu, SMQ, Icarus, Eigenray, Grimbal, ThudnBlunder, towr)    who always lies? « Previous topic | Next topic » Pages: 1 2  Reply Notify of replies Send Topic Print    Author  Topic: who always lies?  (Read 50166 times) BMAD Junior Member     Posts: 57 who always lies?   « on: May 25th, 2014, 8:34am » Quote Modify Mike joins a campfire with three friends.  After five minutes, Mike is bored and decides to start up a conversation: (speaker- dialogue)   Mike- Tell me something interesting. Adam-one of us is always a liar. Mike-Really? Eric- Yes. They always lie, but one of us is also always a truth teller. Mike- Oh, cool, well then …that would mean that Sam is the ‘always liar.’ Sam- Yes, yes I am. Mike-…What? Wait a minute.  I thought you were always a liar. Sam- Yes I am. Eric-He is. Mike-He is? Eric-yes Sam-yes Mike-yes? Adam-no. Mike-no. Sam-no. Mike-wait….then does that make Eric the liar? Eric- Yes Sam- No Adam-yes Mike- What??     **Who is the ‘always’ liar? IP Logged Grimbal wu::riddles Moderator Uberpuzzler     Gender: Posts: 7523 Re: who always lies?   « Reply #1 on: May 26th, 2014, 12:39am » Quote Modify  Mike-yes?   Adam-no.   Mike-no.    Mike replies to its own question?     Eric- Yes. They always lie, but one of us is also always a truth teller.   If Eric lies, is each sentence a lie?  In the second sentence, is both "They always lie" and "one of us is also always a truth teller" a lie?     Mike- Oh, cool, well then …that would mean that Sam is the ‘always liar.’   Is that a statement, or a question? « Last Edit: May 26th, 2014, 12:50am by Grimbal » IP Logged Grimbal wu::riddles Moderator Uberpuzzler     Gender: Posts: 7523 Re: who always lies?   « Reply #2 on: May 26th, 2014, 12:50am » Quote Modify In every case, it is possible that everyone sometimes lies. IP Logged UgoLocal02 Newbie     Gender: Posts: 31 Re: who always lies?   « Reply #3 on: Jun 11th, 2014, 11:21pm » Quote Modify No one is liar all of them lie but not always. IP Logged BMAD Junior Member     Posts: 57 Re: who always lies?   « Reply #4 on: Jun 12th, 2014, 6:11am » Quote Modify One (and only one) of them does always lies.   « Last Edit: Jun 12th, 2014, 6:12am by BMAD » IP Logged BMAD Junior Member     Posts: 57 Re: who always lies?   « Reply #5 on: Jun 12th, 2014, 6:14am » Quote Modify on May 26th, 2014, 12:39am, Grimbal wrote:  Mike-yes?   Adam-no.   Mike-no.    Mike replies to its own question?   ---He was surprised by the response they gave before him.     Eric- Yes. They always lie, but one of us is also always a truth teller.   If Eric lies, is each sentence a lie?  In the second sentence, is both "They always lie" and "one of us is also always a truth teller" a lie?   It depends.  If he always lies then the above must be a lie.  If he only lies some of the time then it may or may not be true.     Mike- Oh, cool, well then …that would mean that Sam is the ‘always liar.’   Is that a statement, or a question?   It is a statement.  He (thinks he) is identifying the liar. IP Logged bal Junior Member     Posts: 59 Re: who always lies?   « Reply #6 on: Jul 5th, 2014, 2:03pm » Quote Modify Maybe Eric? IP Logged Vollmacht Muster | My Blog | My Gallstones | Resignation Letter Sample BMAD Junior Member     Posts: 57 Re: who always lies?   « Reply #7 on: Jul 5th, 2014, 2:44pm » Quote Modify on Jul 5th, 2014, 2:03pm, bal wrote: Maybe Eric?   nice try but no. IP Logged dudiobugtron Uberpuzzler     Posts: 735 Re: who always lies?   « Reply #8 on: Jul 5th, 2014, 5:41pm » Quote Modify I didn't realise this was still active!   I think it is Mike, because each of the others says a combination of statements that can't all be false when taken together. IP Logged EdwardSmith Junior Member     Posts: 61 Re: who always lies?   « Reply #9 on: Jul 6th, 2014, 8:22am » Quote Modify All three of them sometimes lie and sometimes tell the truth. This cannot be proved otherwise. IP Logged Schottland Pension riddler358 Junior Member     Posts: 84 Re: who always lies?   « Reply #10 on: Sep 13th, 2014, 12:51pm » Quote Modify Both Sam and Eric say the're always liar, which always liar would not say. Both Adam and Mike say Sam is not always liar, which is true. Adam tellin truth also eliminates possibility that his statement "one of us is always liar" is a lie   I can't see any way for it to work IP Logged dudiobugtron Uberpuzzler     Posts: 735 Re: who always lies?   « Reply #11 on: Sep 13th, 2014, 2:35pm » Quote Modify Mike doesn't say Sam is not the always liar. « Last Edit: Sep 13th, 2014, 2:36pm by dudiobugtron » IP Logged riddler358 Junior Member     Posts: 84 Re: who always lies?   « Reply #12 on: Sep 13th, 2014, 2:45pm » Quote Modify Mike-…What? Wait a minute.  I thought you were always a liar. Sam- Yes I am. Eric-He is. Mike-He is? Eric-yes Sam-yes Mike-yes? Adam-no. Mike-no. Sam-no. IP Logged junichiro Newbie     Posts: 2 Re: who always lies?   « Reply #13 on: Sep 15th, 2014, 12:11pm » Quote Modify on Jul 6th, 2014, 8:22am, EdwardSmith wrote: All three of them sometimes lie and sometimes tell the truth. This cannot be proved otherwise.   That's what I'm getting too. IP Logged parasadmaduranga Newbie     Gender: Posts: 2 Re: who always lies?   « Reply #14 on: Sep 20th, 2014, 3:36am » Quote Modify you are lying IP Logged Annettagiles Junior Member     Gender: Posts: 67 Re: who always lies?   « Reply #15 on: Nov 4th, 2014, 3:40am » Quote Modify eric i think so IP Logged AllenTrendin Newbie     Posts: 1 Re: who always lies?   « Reply #16 on: Nov 15th, 2014, 11:42pm » Quote Modify Eric and Mike are telling lies i think. IP Logged Littleton Newbie     Posts: 12 Re: who always lies?   « Reply #17 on: Nov 22nd, 2014, 3:53am » Quote Modify Adam is the first liar. He said something without any fact. IP Logged anglia Junior Member     Gender: Posts: 60 Re: who always lies?   « Reply #18 on: Jul 23rd, 2015, 10:02pm » Quote Modify it's too confusing but maybe Sam? IP Logged ebooks BMAD Junior Member     Posts: 57 Re: who always lies?   « Reply #19 on: Jul 24th, 2015, 7:28am » Quote Modify The answer is    Mike   sorry it wouldn't let me hide it.   I first posted this problem at http://brainden.com/forum/index.php?/topic/16151-the-always-liar/   You can see the reasoned solution here...among other fun problems. IP Logged anglia Junior Member     Gender: Posts: 60 Re: who always lies?   « Reply #20 on: Aug 14th, 2015, 11:24pm » Quote Modify No one is lying in this discussion. Everybody is identifying themselves. IP Logged ebooks oceanvibe Junior Member This is, my personal, text     Gender: Posts: 59 Re: who always lies?   « Reply #21 on: Oct 9th, 2015, 1:37am » Quote Modify From my point of view, Mike is always a liar. He always responds with questions and not straight answers. The other guys kind of exclude themselves out. IP Logged 4k wallpapers, my favorite space wallpapers, 1366x768 wallpaper Grimbal wu::riddles Moderator Uberpuzzler     Gender: Posts: 7523 Re: who always lies?   « Reply #22 on: Mar 22nd, 2016, 7:48am » Quote Modify Technically, yes. If Mike never makes a statement but only asks questions then all his statements are lies.  He can be an "always liar" without actually telling any lie. « Last Edit: Mar 22nd, 2016, 7:49am by Grimbal » IP Logged anglia Junior Member     Gender: Posts: 60 Re: who always lies?   « Reply #23 on: Apr 16th, 2016, 4:59am » Quote Modify i think Mike is lier. IP Logged ebooks gitanas Junior Member     Posts: 55 Re: who always lies?   « Reply #24 on: Jun 22nd, 2016, 4:43am » Quote Modify I guess Eric IP Logged Dummy Frog - my blog about interesting and funny things in our World Pages: 1 2  Reply Notify of replies Send Topic Print Forum Jump: ----------------------------- riddles -----------------------------=> easy   - medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese « Previous topic | Next topic »

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