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I need some riddles.
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spiderrasmon
Senior member
why are they drinking from a second bottle instead of a second glass?
chuckywang
Lifer
For some reason that line that says they die "within a day" is screaming at me.
Kyteland
Diamond Member
** ANSWERS **
Golf Balls: Split in to three equal sized groups. The scale will either move up or down or balance. This places the ball in one of 2 groups: The group of 4 if the scale balances, or the group of 8 if it didn't balance. If it is in the group of 4, then the group of 8 is good. It is trivial to prove that you can find the unknown ball in the group of 4 with the addition of 4 good balls that you can weigh against. If it is in the group of 8, that can be split in to two groups with 8 possible outcomes each. What groups you choose have to be deliberate, because 2 weighings can discover 9 things (3^2 = 9) at most.
Coins: Take 1 coin from bag 1, 2 coins feom bag 2, etc. Weigh the 55 coins you have. If bag 1 is off, the scale will be off by 0.01. It it is bag 2 it is off by 0.02, etc.
marbles: Put one white marble in a jar and all others in another. Your probability is now 74/99 that you live.
Robbers: Person 1 offers 100-0-0-0-0. Person 2 and 4 are forced to agree or else they are guaranteed to die. Person 3 and 5 will *always* refuse any offer.
Smurfs: The 50th smurf agrees to act as a parity bit. They count all 49 hats in front of them and call out white if there are an odd number of white hats or black otherwise. All people in front of him can then deduce their hat by counting the hats in front of them and comparing it to the parity bit. 49 smurfs live and the last had a 50/50 chance of living.
Dragon: The dragon brings 2 glasses from well 6, knowing that it'll cure whatever the knight gives him and that the knight can't cure himself from 6. The knight brings 2 glasses of regular water, but before going drinks from well 1. the Dragon drinks the regular water and then well 6 water killing himself. The knight, already poisoned with well 1 water, drinks the well 6 water saving himself and then the regular water and goes on his merry way.
What row: 1113213211. This describes the previous row. one 1, one 3, two 1s, three 2s, one 1.
Switches: Turn 1 switch on for 5 minutes. Turn it off and then turn a different one on. Go in the room. The light on you know. Of the 2 off, the one that is warm will be your first switch.
Devil: From below: Put your first coin in the exact center of the table. After that you can mirror whatever move the Devil makes. He must run out of places before you.
Einstein logic puzzle: I don't remember, but it is easily found by searching.
Which is it? Their last name.
-GRY: This is a deception. There are only three words in the English language. So the third word is "language".
9 letter word:
Answer:
startling
1) starting
2) staring
3) string
4) sting
5) sing
6) sin
7) in
8) i
St Ives: Only you are going to St Ives. The others are going the opposite direction. Read the first line of the peom again. It doesn't matter if the wives are with him or not, they are going the other way.
Change: You don't add the $2 to the 27, you subtract it. $27-$2 = $25 which is the adjusted charge.
Golf Balls: Split in to three equal sized groups. The scale will either move up or down or balance. This places the ball in one of 2 groups: The group of 4 if the scale balances, or the group of 8 if it didn't balance. If it is in the group of 4, then the group of 8 is good. It is trivial to prove that you can find the unknown ball in the group of 4 with the addition of 4 good balls that you can weigh against. If it is in the group of 8, that can be split in to two groups with 8 possible outcomes each. What groups you choose have to be deliberate, because 2 weighings can discover 9 things (3^2 = 9) at most.
Coins: Take 1 coin from bag 1, 2 coins feom bag 2, etc. Weigh the 55 coins you have. If bag 1 is off, the scale will be off by 0.01. It it is bag 2 it is off by 0.02, etc.
marbles: Put one white marble in a jar and all others in another. Your probability is now 74/99 that you live.
Robbers: Person 1 offers 100-0-0-0-0. Person 2 and 4 are forced to agree or else they are guaranteed to die. Person 3 and 5 will *always* refuse any offer.
Smurfs: The 50th smurf agrees to act as a parity bit. They count all 49 hats in front of them and call out white if there are an odd number of white hats or black otherwise. All people in front of him can then deduce their hat by counting the hats in front of them and comparing it to the parity bit. 49 smurfs live and the last had a 50/50 chance of living.
Dragon: The dragon brings 2 glasses from well 6, knowing that it'll cure whatever the knight gives him and that the knight can't cure himself from 6. The knight brings 2 glasses of regular water, but before going drinks from well 1. the Dragon drinks the regular water and then well 6 water killing himself. The knight, already poisoned with well 1 water, drinks the well 6 water saving himself and then the regular water and goes on his merry way.
What row: 1113213211. This describes the previous row. one 1, one 3, two 1s, three 2s, one 1.
Switches: Turn 1 switch on for 5 minutes. Turn it off and then turn a different one on. Go in the room. The light on you know. Of the 2 off, the one that is warm will be your first switch.
Devil: From below: Put your first coin in the exact center of the table. After that you can mirror whatever move the Devil makes. He must run out of places before you.
Einstein logic puzzle: I don't remember, but it is easily found by searching.
Which is it? Their last name.
-GRY: This is a deception. There are only three words in the English language. So the third word is "language".
9 letter word:
Answer:
startling
1) starting
2) staring
3) string
4) sting
5) sing
6) sin
7) in
8) i
St Ives: Only you are going to St Ives. The others are going the opposite direction. Read the first line of the peom again. It doesn't matter if the wives are with him or not, they are going the other way.
Change: You don't add the $2 to the 27, you subtract it. $27-$2 = $25 which is the adjusted charge.
spiderrasmon
Senior member
you ass, I was gonna answer them...!
post more!
post more!
spiderrasmon
Senior member
You place a quarter right in the center of the table. After that, whenever the devil places a quarter on the table, mimic his placement on the opposite side of the table. If he has a place to place a quarter, so will you. The devil will run out of places to put a quarter before you do.
Kyteland
Diamond Member
Actually it is correct. I have a full proof for the general (3^n3)/2 problem and that is it. I just left out a lot of the details. You can figure it out from that though.
Edit: Actually, looking at that I may have stated it wrong.
Edit2: Better? A bit simplified from the full fledged proof, but correct and enough to work it out on your own.
spiderrasmon
Senior member
which state abbreviation's name has nothing in it?
*********************************************
Joseph was a prisoner who was sentenced to life in prison. He was desperate to get out of prison, but the prison is heavily barred and well guarded. He can't escape that way. He has a small dagger to dig a hole into the floor with, but it is useless to try to tunnel out because the walls which are made of concrete extend deep into the ground. The only opening is a small skylight in the middle of the ceiling nine feet above. The jail is absolutely bare, and there is nothing to stand on to reach the ceiling. Yet Joseph manages to escape.
How does Joseph do it?
*********************************************
What am I?
I will help you with your writing,
Probably through me you will see,
But if you want to ship me,
You'll put me right inside of me.
I wear many different hats you know,
In construction plus I'm tracing,
I also do work for the board,
Lots of kids use me for a racing.
You can fold me, tear me,
Rip me without using all your might,
But be careful how you touch me,
I may give you my famous bite.
*********************************
Two people are talking on the phone long distance. One is in an East Coast state of the U.S., the other is in a West Coast state of the U.S. The first asks the other, "What time is it?" He hears the answer and says, "That's funny. It's the same time here!" Neither one of them were mistaken about the time. How is this possible?
Hint
Think about time zones.
***********************************************
The Ringmaster set his 25 acrobats a challenge, he challenges them to walk over the smallest tight rope (in width) in the world. He says to each one of the acrobats "You can do it,trust me". Each acrobats attempts the walk and only one acrobat successfully walks the rope to the other side. Every acrobat says "The ringmaster was right in what he said to all of us". How was the ringmaster right if only one acrobat walked the rope to the other side?
****************************************************
What's similar about the names of these continents?
Asia
Africa
Australia
Antarctica
Europe
*****************************************************
If
7x7=4
11x7=6
13x11=6
Then
27x28=?
*****************************************************
*********************************************
Joseph was a prisoner who was sentenced to life in prison. He was desperate to get out of prison, but the prison is heavily barred and well guarded. He can't escape that way. He has a small dagger to dig a hole into the floor with, but it is useless to try to tunnel out because the walls which are made of concrete extend deep into the ground. The only opening is a small skylight in the middle of the ceiling nine feet above. The jail is absolutely bare, and there is nothing to stand on to reach the ceiling. Yet Joseph manages to escape.
How does Joseph do it?
*********************************************
What am I?
I will help you with your writing,
Probably through me you will see,
But if you want to ship me,
You'll put me right inside of me.
I wear many different hats you know,
In construction plus I'm tracing,
I also do work for the board,
Lots of kids use me for a racing.
You can fold me, tear me,
Rip me without using all your might,
But be careful how you touch me,
I may give you my famous bite.
*********************************
Two people are talking on the phone long distance. One is in an East Coast state of the U.S., the other is in a West Coast state of the U.S. The first asks the other, "What time is it?" He hears the answer and says, "That's funny. It's the same time here!" Neither one of them were mistaken about the time. How is this possible?
Hint
Think about time zones.
***********************************************
The Ringmaster set his 25 acrobats a challenge, he challenges them to walk over the smallest tight rope (in width) in the world. He says to each one of the acrobats "You can do it,trust me". Each acrobats attempts the walk and only one acrobat successfully walks the rope to the other side. Every acrobat says "The ringmaster was right in what he said to all of us". How was the ringmaster right if only one acrobat walked the rope to the other side?
****************************************************
What's similar about the names of these continents?
Asia
Africa
Australia
Antarctica
Europe
*****************************************************
If
7x7=4
11x7=6
13x11=6
Then
27x28=?
*****************************************************
mordantmonkey
Diamond Member
you would only know what group the ball is in and wether it was heavier or lighter. and you would only need to use the scale twice to know that... as for the third use...
i don't think it would be possible... you'd be left with four balls and only one use of the scale.
edit2: if you knew it was heavier or lighter than it would be doable. but using a different method.
i don't think it would be possible... you'd be left with four balls and only one use of the scale.
edit2: if you knew it was heavier or lighter than it would be doable. but using a different method.
Kyteland
Diamond Member
But you can find it out i the precess of doing the weighings. You can think of it as a decision tree. There are 12 balls that can possibly be the odd one, each either lighter or heavier. So there are 12*2=24 possible outcomes to the puzzle. Each weighing can discover 3 things (up, down, or balances) so in 3 weighings you can discover 3^3=27 things at most. It is possible to make the 24 leaf outcome tree balance in to the 27 leaf decision tree.
mordantmonkey
Diamond Member
3^3? no you don't
Kyteland
Diamond Member
In those 4 balls there are 8 possible outcomes. Each ball can be lighter or heavier. 4*2=8. In 2 weighings you can discover at most 9 things. (3^2=9) It still fits in the decision tree.
The way to do it is to weigh 3 unknowns against 3 goods that you previously discarded. That splits the the decision tree again in to 3-3-2, both of which can be solved in a single weighing.
In the first 3 you know it is ligher, in the second 3 you know it is heavier, in the 2 you don't know its weight but can compare it to a good on the last weighing to find out.
Edit: I can't speel today.
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