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 Rickety Bridge (Posted on 2004-03-26)
Lost in the woods, you finally happen upon a rickety old bridge across a deep ravine. The ravine is too steep to go down and climb back up. You need to know if the bridge is safe. As 'luck' would have it, you recognize that on the other side of the bridge is that dreadful town, "Knight-and-Liarville". Everyone who lives there is a knight (who always tells the truth) or a liar (who always lies). You are tired and you've been lost in Knight-and-Liarville before. You see three men on the other side of the bridge.

You shout out: "Are you a knight?"

The first man says something, but you can't hear what he said.

The second man shouts, "He said he was a knight."

The third man shouts, "No, he didn't. He said he was a liar."

Which man do you ask to find out whether or not the bridge is safe?

 See The Solution Submitted by Popstar Dave Rating: 3.1176 (17 votes)

 Subject Author Date Who? Math Man 2014-07-20 10:29:03 Sol Andre 2010-06-01 19:09:46 Puzzle Solution With Explanation K Sengupta 2008-03-12 06:35:00 Answer K Sengupta 2008-03-12 06:33:48 No Subject Terence 2005-10-08 03:42:48 I saw this one in a logic book once Philip 2005-04-04 19:21:55 Puzzle Marlayna 2004-09-27 14:16:49 roundabout, but valid solution Gordon 2004-05-06 17:11:05 number 2 ra 2004-04-05 09:54:55 number 2 ra 2004-04-05 09:53:36 No Subject Batfink 2004-04-04 20:08:01 Solution? Mark Rees 2004-03-29 10:19:23 quick answer hunter 2004-03-29 08:15:29 re(2): maybe... logischer Verstand 2004-03-27 10:01:51 penny and Penny are two different people Penny 2004-03-27 03:36:39 steve's solution Steve Royer 2004-03-27 01:15:20 No Subject penny 2004-03-27 00:31:57 Solution Timothy 2004-03-26 19:48:43 re(2): Only 1 is safe to ask... Brian Wainscott 2004-03-26 19:22:37 There can be only one Juggler 2004-03-26 19:04:53 re: Only 1 is safe to ask... Penny 2004-03-26 17:16:06 re: maybe... Tristan 2004-03-26 17:09:49 maybe... logischer Verstand 2004-03-26 16:42:44 re(2): Only 1 is safe to ask... Charlie 2004-03-26 15:55:58 re(2): Only 1 is safe to ask... Brian Wainscott 2004-03-26 15:54:57 my previous thing is wrong yo 2004-03-26 15:27:01 re: Only 1 is safe to ask... yo 2004-03-26 15:21:02 Yet another Good Point nikki 2004-03-26 15:17:58 Only 1 is safe to ask... Brian Wainscott 2004-03-26 14:51:45 Double solution e.g. 2004-03-26 11:14:32 Good point nikki 2004-03-26 10:56:58 I think this is the answer... :-( Penny 2004-03-26 09:48:08 Solution nikki 2004-03-26 09:43:44

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