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The Most Difficult Tasks (page 77)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 761 to 770. |
Find number abc
)
If 8caac + 26260 = 111b0c find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
What a winning 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/2025/05/17/mastermind-1747440301.png','/What-a-winning-combination/8361'))
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 6472
. Each of the numbers can be used only once.','/archive/2025/05/16/numbermania-1747353901.png','/calculate-the-number-6472/8360'))
NUMBERMANIA: Calculate the number 6472 using numbers [1, 5, 7, 3, 56, 754] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 1
#brainteasers #math #numbermania
The Devil
George Bush, Queen Elizabeth, and Vladimir Putin all die and go to hell.
While there, they spy a red phone and ask what the phone is for. The devil tells them it is for calling back to Earth.
Putin asks to call Russia and talks for 5 minutes. When he is finished the devil informs him that the cost is a million dollars, so Putin writes him a check.
Next Queen Elizabeth calls England and talks for 30 minutes. When she is finished the devil informs her that the cost is 6 million dollars, so she writes him a check.
Finally George Bush gets his turn and talks for 4 hours. When he is finished the devil informs him that the cost is $5.00.
When Putin hears this he goes ballistic and asks the devil why Bush got to call the USA so cheaply. The devil smiles and replies: "Since Obama took over, the country has gone to hell, so it's a local call."
While there, they spy a red phone and ask what the phone is for. The devil tells them it is for calling back to Earth.
Putin asks to call Russia and talks for 5 minutes. When he is finished the devil informs him that the cost is a million dollars, so Putin writes him a check.
Next Queen Elizabeth calls England and talks for 30 minutes. When she is finished the devil informs her that the cost is 6 million dollars, so she writes him a check.
Finally George Bush gets his turn and talks for 4 hours. When he is finished the devil informs him that the cost is $5.00.
When Putin hears this he goes ballistic and asks the devil why Bush got to call the USA so cheaply. The devil smiles and replies: "Since Obama took over, the country has gone to hell, so it's a local call."
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/2025/05/15/magic-square-1747267542.png','/MAGIC-SQUARE-Calculate-A-B-C/8359'))
The aim is to place the some numbers from the list (11, 13, 15, 18, 20, 22, 25, 27, 29, 60, 76) 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
#brainteasers #math #magicsquare
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/2025/05/13/mastermind-1747094701.png','/Find-the-right-combination/8357'))
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 1489
. Each of the numbers can be used only once.','/archive/2025/05/12/numbermania-1747008301.png','/calculate-the-number-1489/8356'))
NUMBERMANIA: Calculate the number 1489 using numbers [9, 3, 8, 5, 51, 835] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 1
#brainteasers #math #numbermania
Find number abc
)
If a5abc + 302ca = 12b213 find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
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/2025/05/10/mastermind-1746835501.png','/Find-the-right-combination/8354'))
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 1090
. Each of the numbers can be used only once.','/archive/2025/05/09/numbermania-1746749101.png','/calculate-the-number-1090/8353'))
NUMBERMANIA: Calculate the number 1090 using numbers [6, 6, 4, 8, 25, 155] 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/2025/05/08/magic-square-1746662810.png','/MAGIC-SQUARE-Calculate-A-B-C/8352'))
The aim is to place the some numbers from the list (17, 20, 21, 24, 26, 27, 28, 33, 38, 41, 42, 93, 98) 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
#brainteasers #math #magicsquare
