BRAIN TEASERS
The Most Difficult Tasks

The Most Difficult Tasks

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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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: 4
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind
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Calculate the number 1937

NUMBERMANIA: Calculate the number 1937 using numbers [1, 2, 6, 3, 73, 639] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 4
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Calculate the number 3197

NUMBERMANIA: Calculate the number 3197 using numbers [8, 9, 4, 5, 82, 233] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 4
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania

When the two magicia...

“When the two magicians liked each other on their first date, it was love at first sleight.”

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Calculate the number 3898

NUMBERMANIA: Calculate the number 3898 using numbers [8, 2, 5, 6, 75, 852] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 4
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Calculate the number 9712

NUMBERMANIA: Calculate the number 9712 using numbers [3, 7, 4, 6, 16, 962] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 5
The first user who solved this task is Fazil Hashim.
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#brainteasers #math #numbermania
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Calculate the number 6648

NUMBERMANIA: Calculate the number 6648 using numbers [6, 7, 9, 1, 10, 443] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 5
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Calculate the number 2234

NUMBERMANIA: Calculate the number 2234 using numbers [6, 2, 8, 7, 14, 696] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 5
The first user who solved this task is Thinh Ddh.
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#brainteasers #math #numbermania
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Calculate the number 1054

NUMBERMANIA: Calculate the number 1054 using numbers [5, 5, 1, 5, 75, 114] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 5
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Calculate the number 670

NUMBERMANIA: Calculate the number 670 using numbers [6, 3, 6, 6, 21, 377] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 5
The first user who solved this task is Nílton Corrêa de Sousa.
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#brainteasers #math #numbermania
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Calculate 876+876-876

If 123+741-900=2196 and 900+144-876=6569 then 876+876-876=?
Correct answers: 5
The first user who solved this task is Sanja Šabović.
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#brainteasers #math #riddles
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If 80c92 - aa21b = 2a479 find number abc. Multiple solutions may exist.
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Leonid Meteors

In 1833, the great shower of the Leonid Meteors was recorded. Many observers clearly reported that the meteors seemed to radiate from a spot in Leo and that, as the constellation moved slowly westward during the night, the radiant point moved with it. Within weeks a Yale mathematician, Denison Olmsted, showed that this radiant point was simply an effect of perspective. The millions of meteors that fell that night had in fact been moving along parallel paths. They appeared to diverge from a point in Leo for the same reason that parallel lines on the ground (such as railroad tracks), appear to diverge from a point on the horizon. Following this realization, the meteors were given the Latin family name for their apparent place of origin: the Leonids [Image: Photo of the Leonids in 1966.]
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