Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 8/20/84; site seismo.UUCP Path: utzoo!linus!philabs!cmcl2!seismo!keith From: keith@seismo.UUCP (Keith Bostic) Newsgroups: net.math Subject: Re: a logic brain teaser Message-ID: <3260@seismo.UUCP> Date: Tue, 21-Aug-84 12:59:18 EDT Article-I.D.: seismo.3260 Posted: Tue Aug 21 12:59:18 1984 Date-Received: Wed, 22-Aug-84 05:58:02 EDT References: <219@ur-laser.uucp> Organization: Center for Seismic Studies, Arlington, VA Lines: 20 If my next question was "Is this the way to Oz", would you answer "yes"? Q1: Would you answer "yes" to Q2? (The answer "no" works just as well, you just have to reverse the meaning.) It is It isn't Liar: always lies Liar: YES NO TT: always tells the truth It is: it's the way to Oz TT: YES NO It isn't: it isn't the way to Oz Q2: Is this the way to Oz? It is It isn't Liar: NO YES TT: YES NO Keith ARPA: keith@seismo UUCP: seismo!keith