Daily Brain Teasers for Friday, 26 November 2021
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
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.
#brainteasers #math #numbermania
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.
#brainteasers #math #magicsquare
Find number abc
If 9b80a - 90ac7 = bbbb find number abc. Multiple solutions may exist.
#brainteasers #math
2 Government Mechanical Engineers...
Bill and Bob, two Government mechanical engineers, were standing at the base of a flagpole, looking up.
A woman walked by and asked what they were doing.
'We're supposed to find the height of the flagpole', said Bob, 'But we don't have a ladder.'
The woman said, 'Hand me that wrench out of your toolbox.'
She loosened a few bolts, then laid the pole down.
She then took a tape measure from their toolbox, took a measurement and announced, 'Eighteen feet, six inches' and walked away.
Ray shook his head and laughed.
'Ain't that just like a 'Miss-know-it-all' woman?' he said.
'We need the height and she gave us the length!'
Bob and Ray are still working for the Government.
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.
#brainteasers #mastermind
Norbert WienerBorn 26 Nov 1894; died 18 Mar 1964 at age 69. American mathematician who established the science of cybernetics, a term he coined, which is concerned with the common factors of control and communication in living organisms, automatic machines, and organizations. He attained international renown by formulating some of the most important contributions to mathematics in the 20th century. His work on generalised harmonic analysis and Tauberian theorems won the Bôcher Prize in 1933 when he received the prize from the American Mathematical Society for his memoir Tauberian theorems published in Annals of Mathematics in the previous year. His extraordinarily wide range of interests included stochastic processes, quantum theory and during WW II he worked on gunfire control. |
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.
#brainteasers #math #numbermania
Find number abc
If 5cb0b - 2b1ba = 2561a find number abc. Multiple solutions may exist.
#brainteasers #math
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.
#brainteasers #mastermind
Calculate the number 576
NUMBERMANIA: Calculate the number 576 using numbers [4, 4, 8, 5, 69, 303] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A-B-C
The aim is to place the some numbers from the list (6, 7, 13, 19, 20, 22, 23, 26, 29) 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.
#brainteasers #math #magicsquare
Find number abc
If 36cbb + ab404 = 58bb5 find number abc. Multiple solutions may exist.
#brainteasers #math
