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Brain Teasers (page 9)puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, sport... These are the tasks listed 81 to 90. |
Find number abc
)
If bb1c8 + 3b2c1 = 11aa8c 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/2026/03/07/mastermind-1772841901.png','/Which-is-a-winning-combination-of-digits/8650'))
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 951
. Each of the numbers can be used only once.','/archive/2026/03/06/numbermania-1772755501.png','/calculate-the-number-951/8649'))
NUMBERMANIA: Calculate the number 951 using numbers [2, 2, 1, 7, 20, 978] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
A little old lady answered a k...
A little old lady answered a knock on the door one day, only to be confronted by a well-dressed young man carrying a vacuum cleaner. 'Good morning,' said the young man. 'If I could take a couple of minutes of your time, I would like to demonstrate the very latest in high-powered vacuum cleaners.'
'Go away!' said the old lady. ''I'm broke and haven't got any money!'' and she proceeded to close the door. Quick as a flash, the young man wedged his foot in the door and pushed it wide open. ''Don't be too hasty!'' he said. ''Not until you have at least seen my demonstration.'' And with that, he emptied a bucket of horse manure onto her hallway carpet. ''Now, if this vacuum cleaner does not remove all traces of this horse manure from your carpet, Madam, I will personally eat the remainder.''
The old lady stepped back and said, ''Well let me get you a fork, 'cause they cut off my electricity this morning!
'Go away!' said the old lady. ''I'm broke and haven't got any money!'' and she proceeded to close the door. Quick as a flash, the young man wedged his foot in the door and pushed it wide open. ''Don't be too hasty!'' he said. ''Not until you have at least seen my demonstration.'' And with that, he emptied a bucket of horse manure onto her hallway carpet. ''Now, if this vacuum cleaner does not remove all traces of this horse manure from your carpet, Madam, I will personally eat the remainder.''
The old lady stepped back and said, ''Well let me get you a fork, 'cause they cut off my electricity this morning!
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/2026/03/05/magic-square-1772669144.png','/MAGIC-SQUARE-Calculate-A-B-C/8648'))
The aim is to place the some numbers from the list (12, 14, 17, 19, 23, 28, 56, 58, 67, 68, 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: 0
#brainteasers #math #magicsquare
Find number abc
)
If 5bcb5 + 18aaa = b6a08 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/2026/03/03/mastermind-1772496301.png','/What-a-winning-combination/8646'))
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 7961
. Each of the numbers can be used only once.','/archive/2026/03/02/numbermania-1772409902.png','/calculate-the-number-7961/8645'))
NUMBERMANIA: Calculate the number 7961 using numbers [2, 6, 5, 2, 35, 987] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
Find number abc
)
If 5a0ab + cbaca = 7ca4c find number abc. Multiple solutions may exist. Correct answers: 0
#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/2026/02/28/mastermind-1772237101.png','/Find-the-right-combination/8643'))
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 7832
. Each of the numbers can be used only once.','/archive/2026/02/27/numbermania-1772150701.png','/calculate-the-number-7832/8642'))
NUMBERMANIA: Calculate the number 7832 using numbers [1, 6, 7, 4, 35, 749] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. Correct answers: 0
#brainteasers #math #numbermania
