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Monthly Archive - November 2025 (page 2)brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20. |
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/2025/11/20/magic-square-1763597127.png','/MAGIC-SQUARE-Calculate-A-B-C/8544'))
The aim is to place the some numbers from the list (5, 6, 11, 19, 20, 25, 26, 27, 28, 32) 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: 0
#brainteasers #math #magicsquare
Find number abc
)
If c51a7 + 10bbc = 460b0 find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
Which is a winning combination of digits?
. 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/2025/11/18/mastermind-1763424301.png','/Which-is-a-winning-combination-of-digits/8542'))
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: 1
#brainteasers #mastermind
A bank robber pulls out gun po...
A bank robber pulls out gun points it at the teller, and says, "Give me all the money or you're geography!" The puzzled teller replies, "Did you mean to say 'or you're history?'" The robber says, "Don't change the subject!"
Calculate the number 751
. Each of the numbers can be used only once.','/archive/2025/11/17/numbermania-1763337901.png','/calculate-the-number-751/8541'))
NUMBERMANIA: Calculate the number 751 using numbers [7, 3, 9, 2, 32, 665] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 1
#brainteasers #math #numbermania
Find number abc
)
If 380ab + c9bac = 97b3a find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
Calculate the number 5140
. Each of the numbers can be used only once.','/archive/2025/11/14/numbermania-1763078701.png','/calculate-the-number-5140/8539'))
NUMBERMANIA: Calculate the number 5140 using numbers [2, 6, 1, 7, 12, 648] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 1
#brainteasers #math #numbermania
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/2025/11/13/magic-square-1762992345.png','/MAGIC-SQUARE-Calculate-A-B-C/8538'))
The aim is to place the some numbers from the list (7, 8, 9, 16, 26, 27, 31, 32, 34, 39, 78) 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: 0
#brainteasers #math #magicsquare
Find number abc
)
If abc2b + 77c2a = c3a2a3 find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
Which is a winning combination of digits?
. 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/2025/11/11/mastermind-1762819501.png','/Which-is-a-winning-combination-of-digits/8536'))
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: 1
#brainteasers #mastermind
Calculate the number 5454
. Each of the numbers can be used only once.','/archive/2025/11/10/numbermania-1762733101.png','/calculate-the-number-5454/8535'))
NUMBERMANIA: Calculate the number 5454 using numbers [9, 1, 9, 9, 36, 561] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 1
#brainteasers #math #numbermania
