BRAIN TEASERS
Monthly Archive - January 2020

Monthly Archive - January 2020

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Calculate the number 7395

NUMBERMANIA: Calculate the number 7395 using numbers [5, 4, 8, 7, 74, 765] 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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MAGIC SQUARE: Calculate A*B-C

The aim is to place the some numbers from the list (5, 8, 9, 23, 26, 27, 60, 63, 64, 67, 84) 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: 10
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 46bac + 410c2 = b7bba find number abc. Multiple solutions may exist.
Correct answers: 27
The first user who solved this task is Nasrin 24 T.
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#brainteasers #math

A completely inebriated man wa...

A completely inebriated man was stumbling down the street with one foot on the curb and one foot in the gutter.
A cop pulled up and said, "I've got to take you in, pal. You're obviously drunk."
Our wasted friend asked, "Officer, are ya absolutely sure I'm drunk?"
"Yeah, buddy, I'm sure," said the copper. "Let's go."
Breathing a sigh of relief, the wino said, "Thank goodness, I thought I was crippled."
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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: 23
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind
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Calculate the number 1998

NUMBERMANIA: Calculate the number 1998 using numbers [7, 7, 4, 1, 37, 252] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Fazil Hashim.
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#brainteasers #math #numbermania
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Find number abc

If aac0b - a0c71 = 19c7 find number abc. Multiple solutions may exist.
Correct answers: 30
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: 16
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 9159

NUMBERMANIA: Calculate the number 9159 using numbers [9, 7, 9, 8, 78, 534] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
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 (10, 12, 16, 29, 31, 35, 62, 64, 68, 75) 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: 8
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 3a42a + c4ac0 = 10bbba find number abc. Multiple solutions may exist.
Correct answers: 26
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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Artificial snow

In 1946, artificial snow from a natural cloud was produced over Mount Greylock, Mass., for the first time in the U.S. An airplane spread small pellets of dry-ice (frozen carbon dioxide) for three miles at a height of 14,000 ft. Although the snow fell an estimated 3,000 feet, it evaporated as it fell through dry air, and never reached the ground. The experiment was carried out by Vincent J. Schaefer of the General Electric Company. Earlier the same year, he had produced snow in a cold chamber, on 12 Jul 1946.
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