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The Most Difficult Tasks (page 69)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 681 to 690. |
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
A little girl and boy are figh...
A little girl and boy are fighting about the differences between the sexes, and which one is better. Finally, the boy drops his pants and says, “Here’s something I have that you’ll never have!” The little girl is pretty upset by this, since it is clearly true, and runs home crying. A while later, she comes running back with a smile on her face. She drops her pants and says, “My mommy says that with one of these, I can have as many of those as I want!”
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
