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The Most Difficult Tasks (page 72)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 711 to 720. |
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/2025/04/17/magic-square-1744848404.png','/MAGIC-SQUARE-Calculate-A-B-C/8331'))
The aim is to place the some numbers from the list (7, 13, 15, 16, 17, 19, 20, 22, 24, 25, 30, 46, 56) 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 number abc
)
If 5b48a + 8cb1c = 14cabb find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
Find number abc
)
If ac6b7 + 1372a = 10a416 find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
I have a smart phone
I have a smart phone with a dumb battery.
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/2025/04/12/mastermind-1744416301.png','/What-a-winning-combination/8326'))
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
Find number abc
)
If 4a9cc + 991b4 = 14a111 find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
Calculate the number 454
. Each of the numbers can be used only once.','/archive/2025/04/07/numbermania-1743984301.png','/calculate-the-number-454/8321'))
NUMBERMANIA: Calculate the number 454 using numbers [1, 6, 1, 8, 18, 158] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 1
#brainteasers #math #numbermania
Find number abc
)
If aa3bc - bac55 = 195cb 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/2025/04/01/mastermind-1743465902.png','/Find-the-right-combination/8315'))
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 9274
. Each of the numbers can be used only once.','/archive/2025/03/21/numbermania-1742515501.png','/calculate-the-number-9274/8304'))
NUMBERMANIA: Calculate the number 9274 using numbers [5, 8, 2, 9, 47, 681] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 1
#brainteasers #math #numbermania
Find number abc
)
If 6a777 - bb827 = 57a5c find number abc. Multiple solutions may exist. Correct answers: 1
#brainteasers #math
