Riddles

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Originally posted by DaveMcW
1. Continuing K-man's logic, there are only 2 plums on the tree. He takes one and leaves one.
But that would mean he both took one and left one. He's supposed to neither take one nor leave one.

Here's a riddle that I have to know the answer to, but don't as of yet. Can anyone help me: What has five eyes and rests on a water bed? The answer has three words in it.
 
Originally posted by WillJ
But that would mean he both took one and left one. He's supposed to neither take one nor leave one.

Actually, D&G said:
Originally posted by DiamondzAndGunz
A man without eyes sees plums on a tree. He neither picks plums nor leaves plums. How can this be?

It's all a matter of semantics. . . . think about it, you'll get it.

I'm working on your other one. . .

Edit: Sorry D&G, if I've stepped on your toes here. . .
 
Originally posted by Turner_727
Actually, D&G said:

It's all a matter of semantics. . . . think about it, you'll get it.

I'm working on your other one. . .

Edit: Sorry D&G, if I've stepped on your toes here. . .
Oh, oops, I forgot that he used "plums" instead of "a plum." Looks like you got it after all, Dave.
 
from car talk:

29 prisoners get set to prison one day. the warder makes a deal with them:

"There are 2 swiches, labled 'a' and 'b', in a room in this prison. when ever I feel like it I will acumpany one of you, selected at randomly, to this room. That person will need to swich one of the swiches from on to off, or off to on. He must move one, and only one swich once. When one person clames that every one has been to that room at least once and is corect in his statment than I will set you all free, if that person's statment is wrong than you will all be exicuted. I will give you one hour today to meet and devise a strategy, after that you will all be kept in isolation until a clame is made."

How do the prisoners get out?
 
Originally posted by WillJ
Here's a riddle that I have to know the answer to, but don't as of yet. Can anyone help me: What has five eyes and rests on a water bed? The answer has three words in it.

Perhaps the trick is the word eye actually means the leter I. So the answer has 5 letter I's
 
Souron, is it a switch to an electric chair, and the prisoner switches it on when the warden sits down?
 
Originally posted by Souron
from car talk:

29 prisoners get set to prison one day. the warder makes a deal with them:

"There are 2 swiches, labled 'a' and 'b', in a room in this prison. when ever I feel like it I will acumpany one of you, selected at randomly, to this room. That person will need to swich one of the swiches from on to off, or off to on. He must move one, and only one swich once. When one person clames that every one has been to that room at least once and is corect in his statment than I will set you all free, if that person's statment is wrong than you will all be exicuted. I will give you one hour today to meet and devise a strategy, after that you will all be kept in isolation until a clame is made."

How do the prisoners get out?

This answer assumes the switches (or just switch B) start in the "off" position

= = = = = = = = = = = = = = = = = = = = = = = = = = = =

First they choose one person to be "captain"

Then the other people (non-captains) follow these rules:
* If this is their first time to the room AND switch B is "off", Turn switch B "on"
* If this is their first time to the room AND switch B is "on", Toggle switch A
* If this is not their first time AND they have not turned switch B "on" before AND switch B is "off", turn switch B "on"
* If this is not their first time AND they have turned switch B "on" before, Toggle switch A

The captain follows these rules:
* If switch B is "off", Toggle switch A
* If switch B is "on", Turn switch B "off"
* When the captain has turned switch B "off" 28 times (or the total number of prisoners minus one), he declares everyone has been in the room.

= = = = = = = = = = = = = = = = = = = = = = = = = = = =

Essentially what is happening is switch B is showing if a person has been in the room and not yet been counted. The captain then counts the number of times the switch is set. And since none of the prisoners will toggle switch B more than once, the captain gets an accurate count of the minimum number of unique prisoners that could have possibly been in the room except him (thus the minus one for when to declare).
 
very close though

First they choose one person to be "captain"

Then the other people (non-captains) follow these rules:
* If this is their first time to the room AND switch B is "off", Turn switch B "on"
* If this is their first time to the room AND switch B is "on", Toggle switch A
* If this is not their first time AND they have not turned switch B "on" before AND switch B is "off", turn switch B "on"
* If this is not their first time AND they have turned switch B "on" before, Toggle switch A

The captain follows these rules:
* If switch B is "off", Toggle switch A
* If switch B is "on", Turn switch B "off"
* When the captain has turned switch B "off" 28 times (or the total number of prisoners minus one), he declares everyone has been in the room.

Just change it to acomidate the posiblity of the swich bieng on at the bigining.
 
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