BRAIN TEASERS
Monthly Archive - May 2023

Monthly Archive - May 2023

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 1 to 10.
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Find number abc

If c5a57 - bc0ab = ba5c3 find number abc. Multiple solutions may exist.
Correct answers: 4
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#brainteasers #math
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Calculate the number 5157

NUMBERMANIA: Calculate the number 5157 using numbers [2, 8, 5, 9, 24, 707] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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#brainteasers #math #numbermania
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Find number abc

If 5ac24 - 42b32 = ccb2 find number abc. Multiple solutions may exist.
Correct answers: 3
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#brainteasers #math

After twelve years in prison...

After twelve years in prison, a man finally escapes.
When he gets home, filthy and exhausted, his wife says, "Where have you been? You escaped eight hours ago!"
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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: 6
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#brainteasers #mastermind
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Calculate the number 6961

NUMBERMANIA: Calculate the number 6961 using numbers [1, 5, 9, 7, 74, 536] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
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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 (18, 19, 20, 27, 28, 29, 31, 32, 33) 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
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#brainteasers #math #magicsquare
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Find number abc

If ac2a4 + 65c43 = b44bba find number abc. Multiple solutions may exist.
Correct answers: 3
CHECK ANSWER
#brainteasers #math
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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: 2
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 4090

NUMBERMANIA: Calculate the number 4090 using numbers [8, 6, 6, 8, 47, 628] 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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Find number abc

If 658cb + 80ba8 = bc60b9 find number abc. Multiple solutions may exist.
Correct answers: 5
CHECK ANSWER
#brainteasers #math
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Henry Whitehead

Died 8 May 1960 at age 55 (born 11 Nov 1904). John Henry Constantine Whitehead was a British mathematician who greatly influenced the development of homotopy theory (a special kind of mapping of topological spaces). Whitehead's work in differential geometry culminated in the paper “On the Covering of a Complete Space by the Geodesics Through a Point” (1935), containing pioneering contributions to this area of mathematics. He always retained his interest in geometry but soon focused on topology. He made substantial contributions to combinatorial homotopy and Stiefel manifolds and set up a school of topology at Oxford.
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