BRAIN TEASERS
Monthly Archive - May 2019

Monthly Archive - May 2019

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Calculate the number 3366

NUMBERMANIA: Calculate the number 3366 using numbers [8, 5, 8, 5, 77, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 13
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 (4, 7, 8, 9, 10, 13, 15, 16, 67, 69, 70, 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: 15
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 703ab + 7177c = 14b15a find number abc. Multiple solutions may exist.
Correct answers: 26
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math

That seat is reserved

A man on the train said: "That seat is reserved." I said: "Well, it's been very forward with me." Pulled up my pants and went on my way.

Lou Sanders

Picture: BBC

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Which is a winning combination of digits?

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 Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1257

NUMBERMANIA: Calculate the number 1257 using numbers [6, 4, 9, 3, 54, 264] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 14
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 6baaa - bbcc8 = 977c find number abc. Multiple solutions may exist.
Correct answers: 32
The first user who solved this task is Nílton Corrêa De Sousa.
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: 26
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 329

NUMBERMANIA: Calculate the number 329 using numbers [2, 3, 8, 8, 77, 228] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 13
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A+B*C

The aim is to place the some numbers from the list (17, 18, 20, 21, 27, 28, 38, 46, 49, 56, 83) 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: 14
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If b007b + 2a55c = aa625 find number abc. Multiple solutions may exist.
Correct answers: 28
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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First milk inspector appointment in U.S.

In 1859, the first full-time Inspector of Milk in the U.S. was appointed by the city of Boston, Massachusetts, as authorized by a state law passed on 6 Apr 1859. Three years earlier, a state law against adulteration of milk had been signed by the Governor (30 May 1856), but it was ineffective, as it depended on individuals making a claim in court. The 1859 law provided an official to crack down on fraud. It established a ten dollar fine for selling “swill milk,” the poor, thin output of cows kept in unsanitary conditions and fed on distillery refuse. Contaminated milk was a serious public health hazard, sometimes deadly to infants. A milk inspector was authorized to enter the premises of handlers of milk and to take specimens for analysis, the results of which were to be held as evidence and used for prosecution.«[Image: A New York City inspector at a grocery testing milk with a lactometer, c.1887]
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