BRAIN TEASERS
Monthly Archive - September 2019

Monthly Archive - September 2019

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Calculate the number 552

NUMBERMANIA: Calculate the number 552 using numbers [5, 3, 9, 5, 83, 304] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 9
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Find number abc

If abc87 + 25c27 = 67cba find number abc. Multiple solutions may exist.
Correct answers: 17
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math
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Find the right combination

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 12
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind

A little old lady answered a k...

A little old lady answered a knock on the door one day, only to be confronted by a well-dressed young man carrying a vacuum cleaner. 'Good morning,' said the young man. 'If I could take a couple of minutes of your time, I would like to demonstrate the very latest in high-powered vacuum cleaners.'
'Go away!' said the old lady. ''I'm broke and haven't got any money!'' and she proceeded to close the door. Quick as a flash, the young man wedged his foot in the door and pushed it wide open. ''Don't be too hasty!'' he said. ''Not until you have at least seen my demonstration.'' And with that, he emptied a bucket of horse manure onto her hallway carpet. ''Now, if this vacuum cleaner does not remove all traces of this horse manure from your carpet, Madam, I will personally eat the remainder.''
The old lady stepped back and said, ''Well let me get you a fork, 'cause they cut off my electricity this morning!
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Calculate the number 2700

NUMBERMANIA: Calculate the number 2700 using numbers [1, 3, 8, 7, 98, 409] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 6
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A+B-C

The aim is to place the some numbers from the list (5, 7, 8, 20, 22, 23, 24, 56, 58, 59, 81) into the empty squares and squares marked with A, B an C. Sum of each row and column should be equal. All the numbers of the magic square must be different. Find values for A, B, and C. Solution is A+B-C.
Correct answers: 9
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If a7c9c + bacb7 = 939b1 find number abc. Multiple solutions may exist.
Correct answers: 16
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
[link]

Find the right combination

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 25
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1001

NUMBERMANIA: Calculate the number 1001 using numbers [5, 2, 7, 7, 48, 341] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 8
The first user who solved this task is Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If 646c7 - 5ac0a = b0cc4 find number abc. Multiple solutions may exist.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Correct answers: 20
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Marshall Hall

Born 18 Feb 1790; died 11 Aug 1857 at age 67. English physiologist who was the first to advance a scientific explanation of reflex action. Although Hall earned his living as a practitioner, he was deeply interested in experimentation. A prolific writer, he wrote 19 books and more than 150 papers. Between 1824 and 1830, Hall published several papers and a book on the consequences of blood-letting. Hall published a pioneering book (1817) on diagnosis. In 1833, Hall described the mechanism by which a stimulus can produce a response independently of sensation or volition and coined the term "reflex" in the biological context. For the first time, the concept of the reflex arc was adopted as a basic mechanism of nervous disease, thus Hall may be called "the father of modern neurology."
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