Daily Brain Teasers for Thursday, 17 July 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
MAGIC SQUARE: Calculate A*B+C
The aim is to place the some numbers from the list (7, 8, 17, 19, 26, 27, 36, 50, 65, 66, 75, 91) 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.
#brainteasers #math #magicsquare
Find number abc
If c6c8c + 9063a = a37aab find number abc. Multiple solutions may exist.
#brainteasers #math
What a winning combination?
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.
#brainteasers #mastermind
One night, as a couple lay ...
One night, as a couple lay down for bed, the husband gently tapped his wife on the shoulder and started rubbing her arm. His wife turned over and said, "I'm sorry honey, I've got a gynecologist appointment tomorrow and I want to stay fresh." Her husband, rejected, turned over and tried to sleep. A few minutes later, he rolled back over and tapped his wife again. This time he whispered in her ear, "Do you have a dentist appointment tomorrow too?"
Calculate the number 473
NUMBERMANIA: Calculate the number 473 using numbers [2, 3, 1, 1, 10, 326] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
First Star PhotographIn 1850, the first photograph of a star was made. At Harvard Observatory (founded 1839), the observatory director, William Cranch Bond and a Boston photographer John Adams Whipple took a daguerreotype of Vega. (A daguerreotype used a copper base with a thin film of polished silver sensitized by iodine vapors to form a thin yellow layer of silver iodide. After the photograph was taken, the plate was developed in a current of magnesium vapor at 75ºC, which adhered to the light-struck parts of the plate. The plate was then fixed in sodium thiosulfate, and rinsed.) Overall, this process to take an image of a star or nebula took many hours of patient skill. Fortunately better photographic materials were later invented. |
Find number abc
If 98242 - 9bacc = 18b5 find number abc. Multiple solutions may exist.
#brainteasers #math
What a winning combination?
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.
#brainteasers #mastermind
Calculate the number 7453
NUMBERMANIA: Calculate the number 7453 using numbers [1, 9, 9, 1, 22, 744] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
MAGIC SQUARE: Calculate A+B*C
The aim is to place the some numbers from the list (9, 10, 13, 14, 18, 22, 50, 51, 52, 60, 63) 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.
#brainteasers #math #magicsquare
Find number abc
If ab07c - c34cb = 4a6a2 find number abc. Multiple solutions may exist.
#brainteasers #math
Which is a winning combination of digits?
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.
#brainteasers #mastermind
