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The Most Difficult Tasks (page 22)puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 211 to 220. |
Find number abc
)
If b710b + b153a = 1c8ba0 find number abc. Multiple solutions may exist. Correct answers: 0
#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/2026/02/03/mastermind-1770077101.png','/What-a-winning-combination/8618'))
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: 0
#brainteasers #mastermind
Calculate the number 1794
. Each of the numbers can be used only once.','/archive/2026/02/02/numbermania-1769990701.png','/calculate-the-number-1794/8617'))
NUMBERMANIA: Calculate the number 1794 using numbers [9, 2, 5, 9, 49, 688] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
The End Is Near
Fred and Luke were fishing on the side of the road. They made a sign saying:
THE END IS NEAR! TURN YOURSELF AROUND
NOW BEFORE IT'S TOO LATE!!
…and showed it to each passing car.
One driver that passed didn't appreciate the sign and shouted out his window, “Leave me alone you nuts!”
All of a sudden they heard a big splash.
Fred turned to Luke, “do you think we should just put up a sign that says: ‘Bridge Out Ahead' instead?”
Find number abc
)
If 2aba3 + 233c6 = 4b33b find number abc. Multiple solutions may exist. Correct answers: 0
#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/2026/01/31/mastermind-1769817901.png','/Which-is-a-winning-combination-of-digits/8615'))
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: 0
#brainteasers #mastermind
Calculate the number 7003
. Each of the numbers can be used only once.','/archive/2026/01/30/numbermania-1769731501.png','/calculate-the-number-7003/8614'))
NUMBERMANIA: Calculate the number 7003 using numbers [3, 8, 3, 4, 93, 791] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#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/2026/01/29/magic-square-1769645145.png','/MAGIC-SQUARE-Calculate-A-B-C/8613'))
The aim is to place the some numbers from the list (3, 4, 5, 16, 17, 18, 60, 61, 62, 63, 79) 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 cbcac + 5b671 = b8b74 find number abc. Multiple solutions may exist. Correct answers: 0
#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/2026/01/27/mastermind-1769472301.png','/What-a-winning-combination/8611'))
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: 0
#brainteasers #mastermind
Calculate the number 5876
. Each of the numbers can be used only once.','/archive/2026/01/26/numbermania-1769385901.png','/calculate-the-number-5876/8610'))
NUMBERMANIA: Calculate the number 5876 using numbers [8, 3, 1, 8, 21, 519] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
