BRAIN TEASERS
Monthly Archive - January 2023 (page 2)

Monthly Archive - January 2023 (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: 4
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 4514

NUMBERMANIA: Calculate the number 4514 using numbers [4, 5, 4, 5, 80, 923] 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 (2, 3, 10, 20, 21, 28, 48, 49, 56, 67, 73) 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

Two-timer

Mrs. Donnell said to her maid: "Oh Mary, I suspect that my husband is having an affair with his secretary."

"I don't believe it," Mary snapped: "you're just saying that to make me jealous."

Jokes of the day - Daily updated jokes. New jokes every day.
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Find number abc

If ca1ca - 2c1bb = a700b find number abc. Multiple solutions may exist.
Correct answers: 6
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 1008

NUMBERMANIA: Calculate the number 1008 using numbers [2, 8, 6, 6, 81, 850] 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 cb7cb - 47aa4 = 3cb61 find number abc. Multiple solutions may exist.
Correct answers: 2
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: 7
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 5783

NUMBERMANIA: Calculate the number 5783 using numbers [9, 7, 8, 2, 87, 736] 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 (3, 7, 12, 14, 18, 23, 27, 31, 36, 65, 71) 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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Juan de la Cierva

Born 21 Sep 1895; died 19 Dec 1936 at age 41.Juan de la Cierva (Codorniu) was a Spanish aeronautical engineer who invented the autogiro (1923), a predecessor to the helicopter. Its rotor, mounted on a mast, was not powered but provided lift by auto-rotation. Power was provided by a forward-mounted engine and a conventional propeller. Flight was controlled by elevators, a rudder, and usually ailerons, though some roll control could be achieved by adjusting the tilt of the rotor head. Unlike the later helicopters, it could not take off vertically nor hover though it could takeoff and land in a much shorter distance, it could. However, if an autogiro lost power, it could spin safely back down to earth like a maple seed. He died in a fixed-wing plane accident.«
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