BRAIN TEASERS
Monthly Archive - October 2022 (page 2)

Monthly Archive - October 2022 (page 2)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20.
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Calculate the number 1713

NUMBERMANIA: Calculate the number 1713 using numbers [6, 3, 4, 2, 54, 137] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
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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 (14, 15, 16, 18, 19, 20, 32, 33, 34, 54, 93) 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: 4
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If 8b6ba - 3ac0b = cc2b6 find number abc. Multiple solutions may exist.
Correct answers: 1
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#brainteasers #math

Miss Beatrice, the church orga...

Miss Beatrice, the church organist, was in her eighties and had never been married. She was admired for her sweetness and kindness to all.
One afternoon the pastor came to call on her and she showed him intoher quaint sitting room. She invited him to have a seat while she prepared tea. As he sat facing her old pump organ, the young minister noticed a cut-glass bowl sitting on top of it. The bowl was filled with water. In the water floated, of all things, a condom! When she returned with tea and scones, they began to chat. The pastor tried to stifle his curiosity about the bowl of water and its strange floater, but soon it got the better of him and he could no longer resist.
"Miss Beatrice", he said. "I wonder if you would tell me about this?" pointing to the bowl.
"Oh, yes" she replied, "isn't it wonderful? I was walking through the park a few months ago and I found this little package on the ground. The directions said to place it on the organ, keep it wet and that it would prevent the spread of disease. Do you know I haven't had the flu all winter?"
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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: 3
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#brainteasers #mastermind
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Calculate the number 590

NUMBERMANIA: Calculate the number 590 using numbers [9, 1, 5, 5, 58, 531] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 3
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If ba42c - 70baa = 205a7 find number abc. Multiple solutions may exist.
Correct answers: 2
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: 4
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1242

NUMBERMANIA: Calculate the number 1242 using numbers [4, 2, 8, 4, 44, 502] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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, 19, 20, 21, 22, 40, 42, 44, 62) 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: 1
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If ba14c - 36944 = 432a3 find number abc. Multiple solutions may exist.
Correct answers: 3
CHECK ANSWER
#brainteasers #math
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Sir George Darwin

Born 9 Jul 1845; died 7 Dec 1912 at age 67.Sir George (Howard) Darwin, the second son of the famous biologist Charles Darwin, was an English astronomer who championed a theory (no longer accepted) that the Moon was once part of the Earth, in what is now the Pacific Ocean. His was the first mathematical analysis of the evolution of Earth's Moon. He suggested that since the effect of the tides has been to slow the Earth's rotation and to cause the Moon to recede from the Earth, then by extrapolating back 4.5 billion years ago the Moon and the Earth would have been very close, with a day being less than five hours. Before this time the two bodies would actually have been one, until the Moon was torn away from the Earth by powerful solar tides that would have deformed the Earth every 2.5 hours.
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