Author |
Topic: Four men, one crime (Read 677 times) |
|
Benny
Uberpuzzler
Gender:
Posts: 1024
|
|
Four men, one crime
« on: Jun 26th, 2009, 11:40am » |
Quote Modify
|
Four men, one of whom has committed a crime, made these statements: Arch: "Dave did it." Dave: "Tony did it." Gus: "I didn't do it." Tony: "Dave lied when he said I did it."
|
|
IP Logged |
If we want to understand our world — or how to change it — we must first understand the rational choices that shape it.
|
|
|
gotit
Uberpuzzler
Gender:
Posts: 804
|
|
Re: Four men, one crime
« Reply #1 on: Jun 26th, 2009, 12:20pm » |
Quote Modify
|
OK. But what are we supposed to do??
|
|
IP Logged |
All signatures are false.
|
|
|
gotit
Uberpuzzler
Gender:
Posts: 804
|
|
Re: Four men, one crime
« Reply #2 on: Jun 26th, 2009, 12:24pm » |
Quote Modify
|
If only one of them lied, then Dave is the criminal.
|
|
IP Logged |
All signatures are false.
|
|
|
towr
wu::riddles Moderator Uberpuzzler
Some people are average, some are just mean.
Gender:
Posts: 13730
|
|
Re: Four men, one crime
« Reply #3 on: Jun 26th, 2009, 1:58pm » |
Quote Modify
|
on Jun 26th, 2009, 12:24pm, gotit wrote:If only one of them lied, then Dave is the criminal. |
| Assuming, furthermore, that each of them either lied or told the truth (i.e. excluding statements that are unconnected to reality), and that lying equals telling untruths (rather than, say, trying to convince someone of something you believe to be untrue)
|
|
IP Logged |
Wikipedia, Google, Mathworld, Integer sequence DB
|
|
|
Noke Lieu
Uberpuzzler
pen... paper... let's go! (and bit of plastic)
Gender:
Posts: 1884
|
|
Re: Four men, one crime
« Reply #4 on: Jun 28th, 2009, 9:02pm » |
Quote Modify
|
Tony had only just met the others. He thinks that Dave is Arch, but says what he says becaus Gus told him to. the patsy.
|
|
IP Logged |
a shade of wit and the art of farce.
|
|
|
|