BRAIN TEASERS
Monthly Archive - May 2022 (page 2)

Monthly Archive - May 2022 (page 2)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20.
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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
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#brainteasers #mastermind
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Calculate the number 1366

NUMBERMANIA: Calculate the number 1366 using numbers [6, 4, 2, 5, 20, 836] 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 (11, 12, 18, 24, 25, 26, 27, 31, 33, 86, 96) 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: 2
CHECK ANSWER
#brainteasers #math #magicsquare

Meet Me For Lunch

The teacher of the earth science class was lecturing on map reading. After explaining about latitude, longitude, degrees, and minutes the teacher asked, 'Suppose I asked you to meet me for lunch at 23 degrees, 4 minutes north latitude and 45 degrees, 15 minutes east longitude . . .?'
After a confused silence, a voice volunteered, 'I guess you'd be eating alone.'

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Find number abc

If ac163 - bc5bb = 95a6 find number abc. Multiple solutions may exist.
Correct answers: 10
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#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: 11
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 416

NUMBERMANIA: Calculate the number 416 using numbers [2, 3, 9, 5, 70, 268] 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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Find number abc

If 8bbab - cb888 = 3aa21 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: 4
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 7701

NUMBERMANIA: Calculate the number 7701 using numbers [7, 9, 1, 7, 15, 865] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 2
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 (5, 6, 7, 14, 15, 16, 20, 21, 22, 36, 97) 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: 2
CHECK ANSWER
#brainteasers #math #magicsquare
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Recordak

In 1927, the Recordak, the first check photographing device began commercial manufacture by the Recordak Corporation, a newly-formed subsidiary of the Eastman Kodak Co., Rochester, NY. Designed to simplify bank records, the machine photographed checks onto 16mm film. It was invented by George Lewis McCarthy, who called it a Checkograph and was issued his patent on 25 Feb 1930 (No. 1,748,489). By 1935, it was also used in libraries for the purpose of making microfilm records, beginning with the New York Public Library photographing the New York Times of the WWI period. Microfilming itself began in the early 1800s. Microphotography for military purposes was first used in the Franco-Prussian war (1870 ).
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