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Brain Teasers (page 124)puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 1231 to 1240. |
Find number abc
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If c9cac - 4c937 = 13c6b find number abc. Multiple solutions may exist. Find the right combination
. 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.','/archive/2023/01/03/mastermind-1672704301.png','/Find-the-right-combination/7501'))
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. Calculate the number 9737
. Each of the numbers can be used only once.','/archive/2023/01/02/numbermania-1672617901.png','/calculate-the-number-9737/7500'))
NUMBERMANIA: Calculate the number 9737 using numbers [9, 6, 4, 7, 79, 671] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
The test
Two young engineers applied for a single position at a computer company.
They both had the same qualifications. In order to determine which individual to hire, the applicants were asked to take a test by the Department manager.
Upon completion of the test, both men missed only one of the questions.
The manager went to the first applicant and said, "Thank you for your interest, but we've decided to give the job to the other applicant."
"And why would you be doing that? We both got 9 questions correct," asked the rejected applicant.
"We have based our decision not on the correct answers, but on the question you missed," said the Department manager.
"And just how would one incorrect answer be better than the other?" the rejected applicant inquired.
"Simple," said the Department manager, "Your fellow applicant put down on question #5, 'I don't know.' You put down, 'Neither do I.'"
Find number abc
)
If 80a33 - 77bb1 = aaca find number abc. Multiple solutions may exist. 
Find the right combination
. 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.','/archive/2022/12/31/mastermind-1672445101.png','/Find-the-right-combination/7498'))
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. Calculate the number 2758
. Each of the numbers can be used only once.','/archive/2022/12/30/numbermania-1672358701.png','/calculate-the-number-2758/7497'))
NUMBERMANIA: Calculate the number 2758 using numbers [4, 8, 8, 8, 73, 726] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. MAGIC SQUARE: Calculate A-B-C
 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.','/archive/2022/12/29/magic-square-1672272357.png','/MAGIC-SQUARE-Calculate-A-B-C/7496'))
The aim is to place the some numbers from the list (4, 6, 7, 16, 26, 28, 29, 40, 47, 49, 50) 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. Find number abc
)
If 61a8b - cc0ab = 17ab0 find number abc. Multiple solutions may exist. Find the right combination
. 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.','/archive/2022/12/27/mastermind-1672099501.png','/Find-the-right-combination/7494'))
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. Calculate the number 5875
. Each of the numbers can be used only once.','/archive/2022/12/26/numbermania-1672013101.png','/calculate-the-number-5875/7493'))
NUMBERMANIA: Calculate the number 5875 using numbers [5, 9, 6, 3, 73, 515] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. 
