BRAIN TEASERS
Monthly Archive - November 2021

Monthly Archive - November 2021

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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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: 9
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 2394

NUMBERMANIA: Calculate the number 2394 using numbers [8, 6, 1, 8, 84, 265] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 3
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#brainteasers #math #numbermania
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Find number abc

If 731a4 - 70ab0 = 2ac4 find number abc. Multiple solutions may exist.
Correct answers: 14
CHECK ANSWER
#brainteasers #math

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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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: 13
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 8638

NUMBERMANIA: Calculate the number 8638 using numbers [7, 3, 7, 5, 99, 815] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 3
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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, 5, 12, 13, 14, 17, 21, 31, 32, 39) 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: 3
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#brainteasers #math #magicsquare
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Find number abc

If 9b80a - 90ac7 = bbbb find number abc. Multiple solutions may exist.
Correct answers: 9
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: 13
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 4485

NUMBERMANIA: Calculate the number 4485 using numbers [4, 6, 1, 7, 73, 796] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 5
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If 5cb0b - 2b1ba = 2561a find number abc. Multiple solutions may exist.
Correct answers: 10
CHECK ANSWER
#brainteasers #math
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HMS Challenger

In 1872, the H.M.S. Challenger set out from Sheerness, Kent, for Portsmouth, England, arriving on 11 Dec 1872. After loading more stores, the world's first global scientificvoyageembarked on 21 Dec 1872, with agroup of scientists and expert navigators to research the oceans. The Challenger was a military corvette sailing ship with auxiliary steam power, converted at Sheerness for the scientific voyage. The ship had a natural history laboratory where specimens were examined, identified, dissected and drawn; a chemistry laboratory; and scientific equipment. During the 4 year journey, ending on 24 May 1876, the voyage zig-zagged around the globe to visit every continent, sounded the ocean bottom to a depth of 26,850-ft, found many new species, and provided collections for scores of biologists.«
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