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#1 User is offline   rookie1ja Icon

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Posted 30 March 2007 - 04:55 PM

Lion and Unicorn I. - Back to the Logic Problems
Alice came across a lion and a unicorn in a forest of forgetfulness. Those two are strange beings. The lion lies every Monday, Tuesday and Wednesday and the other days he speaks the truth. The unicorn lies on Thursdays, Fridays and Saturdays, however the other days of the week he speaks the truth.
Lion: Yesterday I was lying.
Unicorn: So was I.
Which day did they say that?



Spoiler for Solution:
Lion and Unicorn I. - solution
As there is no day when both of the beings would be lying, at least one of them must have spoken the truth. They both speak the truth only on Sunday. However, the Lion would then be lying in his statement, so it couldn’t be said on Sunday. So exactly one of them lied.
If the Unicorn was honest, then it would have to be Sunday – but previously we proved this wrong. Thus only the Lion spoke the truth when he met Alice on Thursday and spoke with the Unicorn about Wednesday.

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#2 User is offline   jmull747 Icon

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Posted 28 May 2007 - 06:14 AM

Alice came across a lion and a unicorn in a forest of forgetfulness. Those two are strange beings. The lion lies every Monday, Tuesday and Wednesday and the other days he speaks the truth. The unicorn lies on Thursdays, Fridays and Saturdays, however the other days of the week he speaks the truth.
Lion: Yesterday I was lying.
Unicorn: So was I.
Which day did they say that?

Thursday. Lion: Yesterday I was lying. This is truth because he lies on Wednesdays and tells the truth on Thursdays. Unicorn: So was I. This is a lie because he tells the truth on Wednesdays and lies on Thursdays.
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#3 User is offline   Dom Icon

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Posted 25 June 2007 - 12:56 PM

Has anyone remembered seeing lions in zoo parks or nature programmes????!!!! Gad, they are always lying! Lions symbolize the ultimate economy of energy.Thus, the lion and the UNicorn could only be saying this on Sunday. :rolleyes:
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#4 User is offline   Tap_521 Icon

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Posted 08 July 2007 - 09:31 PM

interesting!!!!! :D
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#5 User is offline   baybayisinthehizouse Icon

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Posted 08 July 2007 - 11:16 PM

WAT!!! I DONT GET THIS!!
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#6 User is offline   LadySixela Icon

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Posted 11 July 2007 - 04:12 PM

Thursday
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#7 User is offline   LadySixela Icon

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Posted 11 July 2007 - 04:18 PM

Quote

WAT!!! I DONT GET THIS!!


I draw a chart for these:

S M Tu W Th F Sat

Lion T L L L T T T


Unicorn T T T T L L L

Thursday is the only day that meets the parameters.
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#8 User is offline   twilly Icon

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Posted 15 August 2007 - 12:49 AM

but since its the forest of forgetfulness, wouldn't they have forgoten weater they lied or not? :unsure:
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#9 User is offline   Naruki Icon

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Posted 20 August 2007 - 01:34 PM

Quote

Lion and Unicorn I. - Back to the Logic Problems
Alice came across a lion and a unicorn in a forest of forgetfulness. Those two are strange beings. The lion lies every Monday, Tuesday and Wednesday and the other days he speaks the truth. The unicorn lies on Thursdays, Fridays and Saturdays, however the other days of the week he speaks the truth.
Lion: Yesterday I was lying.
Unicorn: So was I.
Which day did they say that?

Well, of course the day was the day of the god of thunder.
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#10 User is offline   iptrace Icon

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Posted 23 October 2007 - 04:54 PM

This is completely ridiculous, people - it could be any day between Tuesday and Saturday.
Let me break it down for you.

Monday - impossible, the unicorn also told the truth on Sunday and can't lie about it.
Tuesday - possible if the lion is telling the truth and the unicorn is lying.
Wednesday - possible if lion=LIE and uni=TRUTH
Thursday - possible if lion=TRUTH and uni=LIE
Friday - possible if lion=LIE and uni=TRUTH
Saturday - possible if lion=TRUTH and uni=LIE
Sunday - impossible because today they are both telling the truth.

Agree?
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