BRAIN TEASERS
Monthly Archive - January 2020 (page 3)

Monthly Archive - January 2020 (page 3)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30.
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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: 32
The first user who solved this task is Nasrin 24 T.
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#brainteasers #mastermind
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Calculate the number 1618

NUMBERMANIA: Calculate the number 1618 using numbers [7, 2, 9, 5, 14, 704] 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.
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 (25, 26, 29, 30, 34, 38, 65, 66, 74, 86) 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

First Time at a Unitarian Service

A man goes to a Unitarian Universalist service for the first time, and later is asked what he thought of it. "Darndest church I ever went to," he replies, "the only time I heard the name of Jesus Christ was when the janitor fell down the stairs."
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Find number abc

If 82ab0 - 10bb8 = c1b92 find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math
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Calculate the number 2008

NUMBERMANIA: Calculate the number 2008 using numbers [1, 5, 2, 5, 24, 315] 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 bbbcc - 6c7aa = 3ba8b find number abc. Multiple solutions may exist.
Correct answers: 22
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#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: 22
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 7730

NUMBERMANIA: Calculate the number 7730 using numbers [2, 8, 7, 5, 24, 971] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 12
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 (1, 2, 3, 7, 8, 9, 24, 25, 26, 66, 67) 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 Nílton Corrêa de Sousa.
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 3cca3 + bbb8b = 822bc 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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London Great Smog

In 1952, a dense smog descended on London, England, that would last four days, causing at least 4,000 deaths and chaos for transportation as visibility was reduced to a few hundred yards. Freshening winds and a rise in temperature dissipated the fog, which cleared on 9 Dec 1952. Although the London Underground could maintain service, but during the four days of smog bus service was vitually shut down when visibility was reduced so severely the roads became congested. During the time of dense fog, most flights in to London Airport were diverted to Hurn, near Bournemouth and linked by train with a Waterloo. The many deaths were of mostly among the elderly, the very young, or those with medical problems. The cause of the smog was coal-burning and required drastic action: the Clear Air Act of 1956.«
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