Kogorous Riddle Thread and eworms Deduction Thread

[Akonyl]

well, I know I've done a prisoner riddle in here before, but hopefully this riddle hasn't already been done by someone else. :V

There are ten prisoners on death row, but the warden gets bored one day and tells them they can play a game for their freedom. In this game, he'll line the prisoners up single-file (the one at the front of the line is called the 1st prisoner, the one at the end of the line is the 10th prisoner) and place a hat on each of their heads. The prisoner won't be told which color the hat on their head is, all they know is that there's two colors of hats: Red and Blue. When they're lined up, they won't be able to look behind them, just at the people in front of them (so, prisoner 1 can't see anybody, prisoner 10 can see 1 through 9).

The procedure of the game is that the warden lines the prisoners up, puts the random blue/red hats on their head, and then goes to the 10th prisoner. This prisoner is allowed to say either "Red" or "Blue", and if they're correct, they will be saved. Otherwise, they die. Either way, once the 10th prisoner answers, the warden will go to the 9th prisoner and repeat the process.

The warden gives them ten minutes to come up with a plan to save as many of themselves in the game as possible. What's the maximum number of lives that can be guaranteed, and how is it accomplished?

edit: Also, don't take into account prisoners backstabbing each other

[kidSherlock]

i think someone has already posted this riddle, but its about a 100 prisoners.

[eworm]

Yup. it's here by Ankor. Solved by c-square here. Is that the answer to the 10 prisoners one too? In that case, we'll need another riddle.

[kidSherlock]

actually i think it's the same,

[eworm]

Okay, guys, I'm disappearing for a while in order to finally think up the fourth Brain-Frying Riddle! Hope it won't take too long and that it'll be awesome - though it's going to be tough to beat the Kaitou KID one...

[kidSherlock]

Okay, guys, I'm disappearing for a while in order to finally think up the fourth Brain-Frying Riddle! Hope it won't take too long and that it'll be awesome - though it's going to be tough to beat the Kaitou KID one...

i'll be waiting (but it's already 12:30am in here, hope i can make it)

[eworm]

Actually, when saying "not too long" I meant about a day or two But just maybe I'll get it done faster.

[Akonyl]

Yup. it's here by Ankor. Solved by c-square here. Is that the answer to the 10 prisoners one too? In that case, we'll need another riddle.

D: boooo

alrighty then, a bit of an easy one but eh:

Using the numbers 5, 9, 10, 10 and only the basic arithmetic operators ( + - * / ), combine the four numbers to make 24. This isn't a trick question, btw, so don't try it

[eworm]

Do the numbers have to be in that order (5, 9, 10, 10)?

[A.E.]

Spoiler:

10+10+9-5=24

[Akonyl]

Do the numbers have to be in that order (5, 9, 10, 10)?

nope, but abegho got it anyway :V

[kidSherlock]

nope, but abegho got it anyway :V

so it's abegho turn now right?

[eworm]

Yes it is.
The Brain-Frying Riddle #4's making is going quite smoothly. Expect something... different. In a few days, I think.

EDIT: All the BFRs now available in my signature. Random titles given.

[A.E.]

Okay, this riddle has almost the same principle as the last one I posted; there is background information, and you need to find them out.

Person A goes to Person B. Person A then becomes very happy. Person A goes back, and while he's on the way, he kills himself..
Why did person A kill himself?

Again I'm gonna be offline for a while, soon. So don't expect any reply till the end of the day

[eworm]

Yes/No questions again?

Spoiler:

1. Are A and B humans?
2. Is A a woman? (guess not since you said "he" killed himself but...)
3. Is B a woman?
4. Did B die before A?
5. Was B in a hospital?