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Math and logic riddle thread
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  ExtraCredit  




 
 
    
 

Post Thu, Oct 08 2020, 9:25 pm
tothepoint wrote:
The lights went off and you suddenly remember you haven’t taken your meds yet! You need to take one pink and one white pill and you clearly recall there where 2 of each left in the bottle.
But it’s dark and you cannot see the colors.
Can you find a solution?

Hidden: 

You open the light?
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mommy#1




 
 
    
 

Post Thu, Oct 08 2020, 9:26 pm
Tamari wrote:
Okay.....but find a solution where you don't have that extra seven minutes in the beginning.....


I just posted an answer but idk how to hide the content! So I cut it, hoping to paste it if someone tells me how!! *From a phone
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  ExtraCredit  




 
 
    
 

Post Thu, Oct 08 2020, 9:30 pm
Tamari wrote:
You have a 7-minute and an 11-minute hourglass. How can you boil an egg in exactly 15 minutes?

I’ll try again.
Hidden: 

You start both at once, flip the 7 while the 11 still finishes round 1. Once the 11 finishes the 7 used 4 minutes so you flip it back for another 4 minutes, equals 15 Very Happy
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  tothepoint  




 
 
    
 

Post Thu, Oct 08 2020, 9:32 pm
ExtraCredit wrote:
Hidden: 

You open the light?


It’s a blackout dear!
Tamari answered correctly upthread
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  ExtraCredit  




 
 
    
 

Post Thu, Oct 08 2020, 9:33 pm
tothepoint wrote:
It’s a blackout dear!
Tamari answered correctly upthread

Saw it. I’m so bad at these tricky riddles. Punch
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  ExtraCredit  




 
 
    
 

Post Thu, Oct 08 2020, 9:34 pm
mommy#1 wrote:
I just posted an answer but idk how to hide the content! So I cut it, hoping to paste it if someone tells me how!! *From a phone

To hide content, select what you’d like to hide then click on the little white square below ‘font type’
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  Tamari  




 
 
    
 

Post Thu, Oct 08 2020, 9:36 pm
mommy#1 wrote:
I just posted an answer but idk how to hide the content! So I cut it, hoping to paste it if someone tells me how!! *From a phone


write the word spoil in brackets, then your text, then write /spoil in brackets.
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  ChanieMommy  




 
 
    
 

Post Thu, Oct 08 2020, 9:54 pm
hoursglasses and egg:

Hidden: 

start both hourglasses at the same time and start boiling the egg...
When 7-minute hourglass is finished, turn it over.
When 11-minute hourglass is finished, turn over the 7-minute hourglass... because 4 minutes have elapsed since it was turned over, so when you turn it back, it will measure 4 minutes, which are exactly the missing 4 minutes to complete the 15 minutes...
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  Tamari  




 
 
    
 

Post Thu, Oct 08 2020, 9:56 pm
ExtraCredit wrote:
I’ll try again.
Hidden: 

You start both at once, flip the 7 while the 11 still finishes round 1. Once the 11 finishes the 7 used 4 minutes so you flip it back for another 4 minutes, equals 15 Very Happy


Very Happy Very Happy Very Happy Very Happy
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  Tamari  




 
 
    
 

Post Thu, Oct 08 2020, 9:57 pm
ChanieMommy wrote:
hoursglasses and egg:

Hidden: 

start both hourglasses at the same time and start boiling the egg...
When 7-minute hourglass is finished, turn it over.
When 11-minute hourglass is finished, turn over the 7-minute hourglass... because 4 minutes have elapsed since it was turned over, so when you turn it back, it will measure 4 minutes, which are exactly the missing 4 minutes to complete the 15 minutes...

Very Happy Very Happy Very Happy
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  doodlesmom  




 
 
    
 

Post Thu, Oct 08 2020, 10:14 pm
Tamari wrote:
You have a 7-minute and an 11-minute hourglass. How can you boil an egg in exactly 15 minutes?


Hidden: 

Start both and when the 7 is done start it again right away once the 11 minute one stops turn around the 7 minute one that will give u 4 minutes and then add additional 11 minutes for 15


Now I see u want me to try without extra time.... let’s see

Hidden: 

Trying again turn over both, once the 7 minute is done turn the 11 minutes over for 4 minute along with the 7 minute one. Then turn back the 7 minute one for and additional 4 minutes equaling 15


Last edited by doodlesmom on Thu, Oct 08 2020, 10:29 pm; edited 1 time in total
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  Tamari  




 
 
    
 

Post Thu, Oct 08 2020, 10:27 pm
doodlesmom wrote:
Hidden: 

Start both and when the 7 is done start it again right away once the 11 minute one stops turn around the 7 minute one that will give u 4 minutes and then add additional 11 minutes for 15


Now I see u want me to try without extra time.... let’s see


Very Happy Very Happy
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  doodlesmom  




 
 
    
 

Post Thu, Oct 08 2020, 10:29 pm
Tamari wrote:
Very Happy Very Happy


Please look at my post above. I edited to try again
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  doodlesmom  




 
 
    
 

Post Thu, Oct 08 2020, 10:30 pm
tothepoint wrote:
The lights went off and you suddenly remember you haven’t taken your meds yet! You need to take one pink and one white pill and you clearly recall there where 2 of each left in the bottle.
But it’s dark and you cannot see the colors.
Can you find a solution?


Hidden: 

Seeing this one now, take half of each pill
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  Tamari  




 
 
    
 

Post Thu, Oct 08 2020, 10:34 pm
doodlesmom wrote:
Please look at my post above. I edited to try again


Your answer is correct, hence the smiley's
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  doodlesmom  




 
 
    
 

Post Thu, Oct 08 2020, 10:40 pm
I saw this riddle in an old post while looking for a specific old riddle, so I reposted for ur enjoyment

Recently a friend told me the following story about the death of his grandfather: "My grandparents used to go to church on Sundays. One day during the sermon, which was long and dry, my grandfather fell asleep. That week he had been reading a novel about the French Revolution and began to dream that he was a rich aristocrat living in a beautiful chateau in France. Suddenly there was a commotion outside. A mob of peasants appeared, stormed the house, grabbed him and tied him up, dragged him to the market square, where there was a platform with a guillotine set up. My grandfather was led up the stairs, a priest muttered a few words to him and then his head was placed in the cradle of the guillotine. A hooded executioner approached and reached up for the lever that releases the blade. At that moment my grandfather was snoring quite loudly, so my grandmother reached out and pinched him on the back of his neck to wake him up. This was such a shock to my grandfather that he suffered a heart attack and died on the spot."
My reaction to the story of my friend: "I don't believe a word of that. You made it up." Why did I react in this way, how did I know the story is not true.
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  doodlesmom  




 
 
    
 

Post Thu, Oct 08 2020, 10:43 pm
Ok here’s the one I was looking for from a while back, I thought it was a very good one:


So there are 100 people together in a dark room. They all get a hat on; there are 50 white hats and 50 black ones.
One by one, they have to go into a room with light and line up in such a way that all the black hats are on one side and all the white hats on the other. It should be 1 big line all together.

They're not allowed to talk or communicate in any fashion, and clearly they can't see what color hat they've got on. They can only see the hats of the other people.

How can this be done?


Last edited by doodlesmom on Thu, Oct 08 2020, 10:44 pm; edited 1 time in total
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shanie5  




 
 
    
 

Post Thu, Oct 08 2020, 10:43 pm
ExtraCredit wrote:
noone else tried Tamaris scale one?


I did. And got the correct answer.

I'm following this thread, but by the time I see most puzzles the answers have been given.

Also didn't have patience to figure out how to hide post.

Hidden: 

Tried it-checking to see if I did it right
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  shanie5  




 
 
    
 

Post Thu, Oct 08 2020, 10:46 pm
doodlesmom wrote:
I saw this riddle in an old post while looking for a specific old riddle, so I reposted for ur enjoyment

Recently a friend told me the following story about the death of his grandfather: "My grandparents used to go to church on Sundays. One day during the sermon, which was long and dry, my grandfather fell asleep. That week he had been reading a novel about the French Revolution and began to dream that he was a rich aristocrat living in a beautiful chateau in France. Suddenly there was a commotion outside. A mob of peasants appeared, stormed the house, grabbed him and tied him up, dragged him to the market square, where there was a platform with a guillotine set up. My grandfather was led up the stairs, a priest muttered a few words to him and then his head was placed in the cradle of the guillotine. A hooded executioner approached and reached up for the lever that releases the blade. At that moment my grandfather was snoring quite loudly, so my grandmother reached out and pinched him on the back of his neck to wake him up. This was such a shock to my grandfather that he suffered a heart attack and died on the spot."
My reaction to the story of my friend: "I don't believe a word of that. You made it up." Why did I react in this way, how did I know the story is not true.


Hidden: 

How could you know the dream if he died as soon as he woke up?
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  ExtraCredit  




 
 
    
 

Post Thu, Oct 08 2020, 10:46 pm
shanie5 wrote:
I did. And got the correct answer.

I'm following this thread, but by the time I see most puzzles the answers have been given.

Also didn't have patience to figure out how to hide post.

Hidden: 

Tried it-checking to see if I did it right

Even if the answers were posted already you can still figure it out. Thats the idea of hiding the answers.
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