Had this question that DS

Five suspects are called into police headquarters for questioning, they give the following statements.

A, one of the five of us is lying
B,Two of the five of us are lying
C, I know these guys, and three of the five of us are lying
D, Don't listen to a word they're saying, out of the five of us four are lying.
E, All Five of us are dirty rotten liars!

The police only want to release the suspects that are telling the truth, how many should they let go?
 
X-BEN said:
You confirming or making fun? not that i mind.

All the riddles I know are all on the internet so people can cheat.

What is the one with the hats and the three kings or something that was amazing!

Found it

The three wisest sages in the land were brought before the king to see which of them were worthy to become the king's advisor. After passing many tests of cunning and invention, they were pitted against each other in a final battle of the wits.

Led blind-folded into a small room, the sages were seated around a small wooden table as the king described the test for them.

"Upon each of your heads I have placed a hat. Now you are either wearing a blue hat or a white hat. All I will tell you is this- at least one of you is wearing a blue hat. There may be only one blue hat and two white hats, there may be two blue hats and one white hat, or there may be three blue hats. But you may be certain that there are not three white hats."

"I will shortly remove your blind folds, and the test will begin. The first to correctly announce the colour of his hat shall be my advisor. Be warned however, he who guesses wrongly shall be beheaded. If not one of you answers within the hour, you will be sent home and I will seek elsewhere for wisdom."

With that, the king uncovered the sages' eyes and sat in the corner and waited. One sage looked around and saw that his competitors each were wearing blue hats. From the look in their eyes he could see their thoughts were the same as his, "What is the colour of my hat?"

For what seemed like hours no one spoke. Finally he stood up and said, "The colour of the hat I am wearing is . . ."
Click to expand...



has to be blue i think? due to the other sages reactions.
 
X-BEN said:
You confirming or making fun? not that i mind.

All the riddles I know are all on the internet so people can cheat.

What is the one with the hats and the three kings or something that was amazing!

Found it

The three wisest sages in the land were brought before the king to see which of them were worthy to become the king's advisor. After passing many tests of cunning and invention, they were pitted against each other in a final battle of the wits.

Led blind-folded into a small room, the sages were seated around a small wooden table as the king described the test for them.

"Upon each of your heads I have placed a hat. Now you are either wearing a blue hat or a white hat. All I will tell you is this- at least one of you is wearing a blue hat. There may be only one blue hat and two white hats, there may be two blue hats and one white hat, or there may be three blue hats. But you may be certain that there are not three white hats."

"I will shortly remove your blind folds, and the test will begin. The first to correctly announce the colour of his hat shall be my advisor. Be warned however, he who guesses wrongly shall be beheaded. If not one of you answers within the hour, you will be sent home and I will seek elsewhere for wisdom."

With that, the king uncovered the sages' eyes and sat in the corner and waited. One sage looked around and saw that his competitors each were wearing blue hats. From the look in their eyes he could see their thoughts were the same as his, "What is the colour of my hat?"

For what seemed like hours no one spoke. Finally he stood up and said, "The colour of the hat I am wearing is . . ."
Click to expand...

Blue. Though the logic is slightly weird.
 
X-BEN said:
For what seemed like hours no one spoke. Finally he stood up and said, "The colour of the hat I am wearing is . . ."
Click to expand...

Blue.

If it was white one, of the other sages would know that his wasn't white (by deducing that the third hadn't worked out his was blue), and would therefore have already guessed correctly. Assuming that these sages age as wise as they are supposed to be.
 
WillyNelson said:
Blue.

If it was white one, of the other sages would know that his wasn't white (by deducing that the third hadn't worked out his was blue), and would therefore have already guessed correctly. Assuming that these sages age as wise as they are supposed to be.
Click to expand...

That's how I figured it. The trouble is, you discount bbw on the basis that if you can see bw, you know you're b, or the other b would call as he'd straightaway see ww. So you know you're not w as otherwise someone else would call. But then you say that you must be b, as otherwise one of the others would make it clear that you were in a bbw situation. But why don't they all figure that out? The riddle relies on you knowing everyone is smart enough to figure out a bbw situation, but then they all take forever to work out a bbb situation. PARADOX.
 
Willy and Von, I think you're misreading the riddle.

From the look in their eyes he could see their thoughts were the same as his, "What is the colour of my hat?"
Click to expand...
, not that they could see the other two hats were blue.

X-BEN, don't post the answer yet.

edit: got it. If the other two saw Blue Blue, they would not be able to answer the question. If the other two saw Blue White, they would not be able to answer the question. If the other two saw White White, they could answer the question. Knowing one of the hats is not White, mine must be.

Hmm, it makes sense in my head. :/
 
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Ill post the answer later tonight so more people get to think about it without a definite answer.

Five suspects are called into police headquarters for questioning, they give the following statements.

A, one of the five of us is lying
B,Two of the five of us are lying
C, I know these guys, and three of the five of us are lying
D, Don't listen to a word they're saying, out of the five of us four are lying.
E, All Five of us are dirty rotten liars!

The police only want to release the suspects that are telling the truth, how many should they let go?

It's gotta be C because he's correct in saying that 3 are lying then E because he's telling the truth about lying?

so they let go C & E :)
 
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Four men; A, B, C and D, are trying to cross a bridge in the dark. They can only cross with a torch, of which they have only one between them. Only two men can fit across the bridge at once, and when going across in pairs they cross at the speed of the slowest man.

If A takes 1 minute to cross, B in 2, C in 5, and D in 10, what is the quickest that they can all get to the other side?
 
hmmm, this is an old one... let's see

A&B Cross the river, takes 2 minutes. Total 2. AB----CD
A returns to the others, takes 1 minute. Total 3. B---ACD
C&D cross the river, takes 10 minutes. Total 13. BCD---A
B then returns, takes 2 minutes. Total 15. CD---AB
A&B cross the river, takes 2 minutes. Total 17. ABCD---

Total time, 17 minutes, battery hasn't yet run out in the torch.
 
Ceryndrion said:
hmmm, this is an old one... let's see

A&B Cross the river, takes 2 minutes. Total 2. AB----CD
A returns to the others, takes 1 minute. Total 3. B---ACD
C&D cross the river, takes 10 minutes. Total 13. BCD---A
B then returns, takes 2 minutes. Total 15. CD---AB
A&B cross the river, takes 2 minutes. Total 17. ABCD---

Total time, 17 minutes, battery hasn't yet run out in the torch.
Click to expand...

I See what you did there :p
 
okay then, lets see now

Code: 
1   2   3   4
5   6   7   8
9  10  11  12
13 14  15  16

I am sure that everyone knows this, but the question is, does anyone know the 'perfect' solution?

That is, the same number can be found in the rows, columns, diagonals, each of the quadrants, the center four squares, the corner squares, the four outer numbers clockwise from the corners and likewise the four counter-clockwise, as well as a number of others.
 
Raist said:
Willy and Von, I think you're misreading the riddle.

, not that they could see the other two hats were blue.

X-BEN, don't post the answer yet.

edit: got it. If the other two saw Blue Blue, they would not be able to answer the question. If the other two saw Blue White, they would not be able to answer the question. If the other two saw White White, they could answer the question. Knowing one of the hats is not White, mine must be.

Hmm, it makes sense in my head. :/
Click to expand...

It's not that you know the other two guys can see BB, but that you deduce that's what they can see.

You have to work it backwards: If you had a white hat on, #2 would be able to work out that his hat was blue because, if #1 could see WW, he would already have guessed that his is B. As #1 has said nothing and #2 has said nothing, #2 must see BB because he is unsure what colour his own hat is. Basically it is the first wise man to work this out who guesses correctly.
 
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