Lying Chickens

posted by Caprico
- April 17 2011 11:01:02 PM

Here is an nice riddle which technically may have two answers, depending on how you attack it.

A chicken says "All chickens are liars". Is the chicken telling the truth?

A chicken says "All chickens are liars". Is the chicken telling the truth?

Reply by Ragib
- April 18 2011 04:42:16 AM

paradox.one of the sentences is right when other is wrong.

Reply by Caprico
- April 18 2011 12:58:54 PM

Well, that is the most obvious answer. Now forget mathematical logic, and try something else...

Reply by Ragib
- April 19 2011 02:05:13 AM

it depends on how you want us to attack it.chickens of course don't talk.again if they are liars,it doesn't necessarily mean that they always lie.they may once in a life tell a lie and be called liar.the chicken which is speaking may lie afterwards.

Reply by Caprico
- April 19 2011 04:48:19 AM

Your answer is good enough. Here's the one I've put in the solution.

Consider, that he is lying. Which means all chickens are not liars. But this does not imply that all chickens are truthful either! Just that, not all chickens are liars, but some may be. So he's one of the lying chickens. So the answer is, no, he's not telling the truth.

Consider, that he is lying. Which means all chickens are not liars. But this does not imply that all chickens are truthful either! Just that, not all chickens are liars, but some may be. So he's one of the lying chickens. So the answer is, no, he's not telling the truth.

Reply by Ragib
- April 19 2011 12:36:41 PM

however the answer is manipulated,it really doesn't matter.because,the actual answer is paradox.what about'a chicken says'all chickens are dead.'is the chicken dead or alive?'i made it just for fun though.

Reply by Caprico
- April 20 2011 07:45:44 AM

Frankly speaking, in your case, he's straightforward lying, coz he wouldn't be able to speak if he was dead.

And I agree, the answer is manipulated, but do you realize that if there hadn't been something as Mathematical Logic, we would have given this answer? Coz in Logic, you have to exclude the in-between. Like, windows can't be half-open, either closed or open, or it is either hot, or cold, but not warm or cool. This solution considers such possibilities, that's all.

And I agree, the answer is manipulated, but do you realize that if there hadn't been something as Mathematical Logic, we would have given this answer? Coz in Logic, you have to exclude the in-between. Like, windows can't be half-open, either closed or open, or it is either hot, or cold, but not warm or cool. This solution considers such possibilities, that's all.

Reply by Ragib
- April 20 2011 08:12:39 AM

ya.logic is necessary for riddles but sometimes when you become ultralogical we may be unable to solve some riddles.there are in betweens in logic.einstein's neighbour's truth telling day riddle is like that.sometimes it depends on demand of situation.

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