BRAIN TEASERS
Monthly Archive - February 2023

Monthly Archive - February 2023

brain teasers, 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: 3
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 5765

NUMBERMANIA: Calculate the number 5765 using numbers [9, 8, 9, 7, 52, 672] 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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Find number abc

If 4a7a5 - bc047 = 2c7bc find number abc. Multiple solutions may exist.
Correct answers: 4
CHECK ANSWER
#brainteasers #math

A priest was preparing a man f...

A priest was preparing a man for his long journey into the night.
Whispering firmly, the priest said, "Denounce the devil! Let him know how little you think of his evil."
The dying man said nothing.
The priest repeated his order. Still the dying man said nothing.
The priest asked, "Why do you refuse to denounce the devil and his evil?"
The dying man said, "Until I know where I'm heading, I don't think I ought to aggravate anybody."
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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: 9
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 3307

NUMBERMANIA: Calculate the number 3307 using numbers [6, 3, 1, 8, 52, 970] 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 (13, 14, 16, 21, 22, 24, 37, 38, 40, 90, 91, 98) 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 614cb - 54c44 = a1a6 find number abc. Multiple solutions may exist.
Correct answers: 3
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: 3
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 987

NUMBERMANIA: Calculate the number 987 using numbers [8, 9, 1, 4, 15, 934] 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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Find number abc

If 2232a + 678ba = 90bc0 find number abc. Multiple solutions may exist.
Correct answers: 2
CHECK ANSWER
#brainteasers #math
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Otto Eisenschiml

Died 7 Dec 1963 at age 83 (born 16 Jun 1880).Austrian-American chemist and historian. After obtaining a university degree in Vienna he emigrated to the U.S. (1901). He worked as a chemist with the American Linseed Co. In 1910, with Norman Copthorne, he developed a method of determining the presence of fish oils in vegetable oils, and the method was adopted by the U.S. Dept of Agriculture in 1925. Earlier, he had developed the first one-piece window envelope for the Window Envelope Company. Partly to supply the Window Envelope Company with a special varnish for its envelopes, Eisenschiml established the Scientific Oil Company (now Scientific Chemicals, Inc.) He also wrote over a dozen books on the Civil War; the best known is Why Was Lincoln Murdered? (1937).
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