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Probably most of you cán solve this, despite it is rumoured only 2% can. I once read you should do this without "pencil and paper", so perhaps that's where the 2% comes from.
Anyways first time I saw this I took the pencil and paper and got to work.
It took me about 30-40 minutes to complete. How long did it take you (the first time?)
Einstein's riddle
The situation
There are 5 houses in five different colors.
In each house lives a person with a different nationality.
These five owners drink a certain type of beverage, smoke a certain brand of cigar and keep a certain pet.
No owners have the same pet, smoke the same brand of cigar or drink the same beverage.
The question is: Who owns the fish?
Hints
the Brit lives in the red house
the Swede keeps dogs as pets
the Dane drinks tea
the green house is on the left of the white house
the green house's owner drinks coffee
the person who smokes Pall Mall rears birds
the owner of the yellow house smokes Dunhill
the man living in the center house drinks milk
the Norwegian lives in the first house
the man who smokes blends lives next to the one who keeps cats
the man who keeps horses lives next to the man who smokes Dunhill
the owner who smokes BlueMaster drinks beer
the German smokes Prince
the Norwegian lives next to the blue house
the man who smokes blend has a neighbor who drinks water
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It's WRONG wrong wrong! Thre should be a zebra in there somewhere! 
Anything that is unrelated to elephants is irrelephant
Anonymous
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The problem with quotes on the internet is that you can never tell if they're genuine
Winston Churchill, 1944
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I'd just like a chance to prove that money can't make me happy.
Me, all the time
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You're mistaken, the zebra is in the next street ! 
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Johnny J. wrote: Thre should be a zebra in there somewhere!
I had a zebra curry a couple of months ago. Very nice it was too.
Some men are born mediocre, some men achieve mediocrity, and some men have mediocrity thrust upon them.
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As long as it took Google to find the answer after I'd registered my disgust at the perpetuation of the myths that
a) this has anything to do with Einstein
b) it's a riddle
c) it's solvable (like my esteemed colleague says - there ain't no fish!!!)
d) only Mensa qualifying IQs can achieve the given answer
e) it contains free advertising for tobacco
Puzzles of this kind predate Einstein's birth (I haven't yet been able to establish whether the great Dudeney has an example but I wouldn't be surprised) and the easiest way to solve them is not purely by logic.
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About 30 minutes with pen and paper. Used similar logic as Cheryl's birthday problem.
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d@nish wrote: similar logic
Is that the "The fact that X is able to make a choice implies that the only possible choice for Y is 'choice a' ?"
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No. I am referring to making a grid and omitting or selecting possible options.
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Isn't that theology/philosophy rather than logic? 
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Riddler, Riddler ask me why the birds fly free on a mackerel sky...
Geek code v 3.12 {
GCS d--- s-/++ a- C++++ U+++ P- L- E-- W++ N++ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t++ 5? X R++ tv-- b+ DI+++ D++ G e++>+++ h--- r++>+++ y+++*
Weapons extension: ma- k++ F+2 X
}
If you think 'goto' is evil, try writing an Assembly program without JMP. -- TNCaver
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What is the average velocity of a swallow carrying a coconut?
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The definite integral of it's acceleration during the trip, obviously!
Geek code v 3.12 {
GCS d--- s-/++ a- C++++ U+++ P- L- E-- W++ N++ o+ K- w+++ O? M-- V? PS+ PE- Y+ PGP t++ 5? X R++ tv-- b+ DI+++ D++ G e++>+++ h--- r++>+++ y+++*
Weapons extension: ma- k++ F+2 X
}
If you think 'goto' is evil, try writing an Assembly program without JMP. -- TNCaver
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Well a king must know these things 
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The african or the European Swallow?
#region(start signature)
Life's like a nose, you've got to get out of it whats in it!
#endregion
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Not reading the Insider news much are we? 
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idd, missed that... 
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All the houses are the same colour (blue) - they are just moving away from our reference frame so fast that the light reaching us from them appears shifted up the spectrum.
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All the owners have horses as pet it's just the distance between us and the houses that the pets appear to be cat, fish goat etc
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Dr Schrodinger owns the cat - although I haven't seen it for a while. I wonder if it's OK?
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Well I can't tell anything about Dr Schrodinger, but Einstein himself was one of the five house owners who used to drink milk I guess. Pertaining to his geniusness 
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A person who lives in Green house owns fish...
DVL
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A person who lives in a greenhouse is too busy not throwing stones to own fish. Your answer does not compute. Danger, Will Robinson, danger!
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Well that's easy...
V. wrote: The question is: Who owns the fish?
Answer: None of them.
One has dogs, one has birds, one has cats, one has horses, and the fifth? None of those hints said anything about fish, so for all we know, he has gerbils.
And that took about ten seconds 
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Would your beer spill moving that fast?
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When someone upvotes a message or article I wrote it's nice seeing who it was how voted. Really nice.
Conversely when someone downvotes you there's often a "who on Earth would downvote that?"
We've talked about this a lot and so I bring this up as something that's already been brought up, but times change as do opinions.
So onto the debate:
Whereas knowing your admirers and foes brings either a warm fuzzy feeling or concrete contact to discuss improvements, be it resolved that showing names next to votes is a Good Thing.
Those debating for the motion please state their case, and those debating against provide their counter-arguments.
cheers
Chris Maunder
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