Riddles: Thread and Discussions - Page 6
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ixi.genocide
United States981 Posts
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VonLego
United States519 Posts
+ Show Spoiler + It is simple binary. The first solution showed this, but if you want to be specific and declare that you're only allowed to flip one time a round you would use gray code binary. http://en.wikipedia.org/wiki/Gray_code 000 001 011 010 110 111 101 100 | ||
Trion
Canada291 Posts
On December 06 2010 06:49 xlat wrote: Love the thread, huge fan of this stuff. One of my favourites goes like this (didnt see it posted yet): + Show Spoiler + Every man in a village of fifty couples has been unfaithful to his wife. Every woman in the village instantly knows when a man other than her husband has philandered (you know how small towns are) but not when her own husband has ("always the last to know"). The village's notolerance adultery statute requires that a woman who can prove her husband is unfaithful must kill him that very day. No woman would dream of disobeying this law. One day, the queen, who is known to be infallible, visits the village. She announces that at least one husband has been unfaithful. What happens? + Show Spoiler + On the 50th day after the queen visits all wives kill their husbands. Same reasoning as the red eye blue eye monk question. | ||
TymerA
Netherlands759 Posts
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TymerA
Netherlands759 Posts
The following sentence is false. The preceding sentence is true. Are these sentences true or false? | ||
Trion
Canada291 Posts
On December 06 2010 07:32 TymerA wrote: A man was to be sentenced, and the judge told him, "You may make a statement. If it is true, I'll sentence you to four years in prison. If it is false, I'll sentence you to six years in prison." After the man made his statement, the judge decided to let him go free. What did the man say? Is it? + Show Spoiler + This statement is false | ||
infinitestory
United States4053 Posts
On December 06 2010 07:32 TymerA wrote: A man was to be sentenced, and the judge told him, "You may make a statement. If it is true, I'll sentence you to four years in prison. If it is false, I'll sentence you to six years in prison." After the man made his statement, the judge decided to let him go free. What did the man say? + Show Spoiler + My sentence will be 6 years in prison. | ||
DumEN
Sweden123 Posts
On December 06 2010 07:23 ixi.genocide wrote: The 3 princess question is unsolvable if there isn't a pattern to the middle daughters lying habits. If there was a pattern to it you could solve but there isn't (as far as the question has been stated). The awesome thing about the riddle is that even for veteran problemsolvers, it seems unsolvable, even though it is, without any stupd gimick. | ||
Plissken_2097
Spain628 Posts
Man of the 40th floor + Show Spoiler + A man lives on a 40th floor. To go down the building, he takes up the elevator and goes down straight to the B floor. When it goes up, he stops on the 35th floor, and walks up the stairs to the 40th floor. However, on rainy days he gets directly from B to 40th. Why? | ||
Trion
Canada291 Posts
On December 06 2010 07:36 DumEN wrote: The awesome thing about the riddle is that even for veteran problemsolvers, it seems unsolvable, even though it is, without any stupd gimick. Well then please give the answer before my head explodes! | ||
infinitestory
United States4053 Posts
On December 06 2010 07:37 Golondrin wrote: That one is kind of simple, but can has the potential to originate serious headaches. Man of the 40th floor + Show Spoiler + A man lives on a 40th floor. To go down the building, he takes up the elevator and goes down straight to the B floor. When it goes up, he stops on the 35th floor, and walks up the stairs to the 40th floor. However, on rainy days he gets directly from B to 40th. Why? Total guess. + Show Spoiler + he's a midget, so he can't reach the 40 button, but on rainy days when he wears rain boots and has an umbrella, he's just tall enough to reach it | ||
Plissken_2097
Spain628 Posts
On December 06 2010 07:41 infinitestory wrote: Total guess. + Show Spoiler + he's a midget, so he can't reach the 40 button, but on rainy days when he wears rain boots and has an umbrella, he's just tall enough to reach it + Show Spoiler + An umbrella can do the trick aswell So fast! | ||
xlat
176 Posts
On December 06 2010 07:32 Trion wrote: + Show Spoiler + On the 50th day after the queen visits all wives kill their husbands. Some reasoning as the red eye blue eye monk question. Yeah, correct. But for some reason I always have a much harder time both thinking about and putting into words the solution to the couples one compared to any of the other similar ones involving colors (there are many of them) | ||
midgettoes
Australia180 Posts
On December 06 2010 06:22 DumEN wrote: I really like this one: Three Princesses + Show Spoiler + You are a noble knight, who have just slain a vicious dragon. To reward you, the king will let you marry one of his three daughters. The daughters all look the same, and it is impossible to know them apart, unless you ask them. However, their personalities differ, a lot: The youngest daughter always lie. The middle daughter lie half the time. The oldest daugters never lies. After some concidering, you decide that it would be OK to live with either the youngest, or the eldest, because at least you know what they think. When the time comes to choose, the king only allows you to ask one(1) "yes/no"-question to any one of the three daughters, and you don't know who is who. What do you ask, to make sure you can make a choice, confident you will not choose the middle daughter? This doesn't seem too hard, so I probably got it wrong :D + Show Spoiler + Ask "Are you the middle daughter?" Youngest - Yes Middle - Yes/No Oldest - No If you get 2x Yes, marry the "No" If you get 2x No, marry the "Yes" | ||
DumEN
Sweden123 Posts
On December 06 2010 07:40 Trion wrote: Well then please give the answer before my head explodes! Answer: + Show Spoiler + Really? You don't want to figure it out yourself? + Show Spoiler + Let's name the daughters A, B, and C. The question is: + Show Spoiler + [Asked to daughter A] "Is daugther B younger than daughter C?" To avoid choosing the middle daughter, always marry the one that is indicated to be younger. | ||
Haiy
Germany32 Posts
On December 06 2010 07:43 midgettoes wrote: This doesn't seem too hard, so I probably got it wrong :D + Show Spoiler + Ask "Are you the middle daughter?" Youngest - Yes Middle - Yes/No Oldest - No If you get 2x Yes, marry the "No" If you get 2x No, marry the "Yes" Haha , thats exactly what I had. But you are only allowed to ask >1< question to a random daughter, not 1 each. | ||
Trion
Canada291 Posts
On December 06 2010 07:43 midgettoes wrote: This doesn't seem too hard, so I probably got it wrong :D + Show Spoiler + Ask "Are you the middle daughter?" Youngest - Yes Middle - Yes/No Oldest - No If you get 2x Yes, marry the "No" If you get 2x No, marry the "Yes" But you can only ask one question to one random daughter | ||
DumEN
Sweden123 Posts
On December 06 2010 07:43 midgettoes wrote: This doesn't seem too hard, so I probably got it wrong :D + Show Spoiler + Ask "Are you the middle daughter?" Youngest - Yes Middle - Yes/No Oldest - No If you get 2x Yes, marry the "No" If you get 2x No, marry the "Yes" + Show Spoiler + You can only ask it one time, to one daughter. | ||
Mobius
Canada1268 Posts
and im pretty sure they're all wrong.. If C could see A&B's hats, then yea he would know he is wearing a black hat.. But he doesnt know they're both wearing white hats | ||
Trion
Canada291 Posts
On December 06 2010 07:45 DumEN wrote: Answer: + Show Spoiler + Really? You don't want to figure it out yourself? + Show Spoiler + Let's name the daughters A, B, and C. The question is: + Show Spoiler + [Asked to daughter A] "Is daugther B younger than daughter C?" To avoid choosing the middle daughter, always marry the one that is indicated to be younger. Thank you. Seems so easy now! Doh! | ||
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