Daily Brain Teasers for Sunday, 28 September 2025
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puzzles, riddles, mathematical problems, word games, mastermind, cinemania, music, stereograms, ... |
Find number abc
If 81ac8 + 86a21 = 16ba59 find number abc. Multiple solutions may exist.
#brainteasers #math
Find the right 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 319
NUMBERMANIA: Calculate the number 319 using numbers [6, 8, 3, 9, 44, 858] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
A boy asks his dad...
A boy asks his dad, “What’s the difference between potential and realistic?” The dad tells him to go ask the rest of his family if they’d sleep with Brad Pitt for a million dollars, and then he’d tell him the answer. The boy goes up to his mom and asks her. She responds, “A million dollars is a lot of money sweetheart. I could send you, your sister, and your brother to great colleges, so sure, I would!” He then goes and asks his sister to which she replies, “Brad Pitt? Hell ya, he’s the hottest guy ever!” Next, the boy asks his brother who replies, “A million dollars? Hell yes I would. I’d be rich!” When the boy excitedly returns to his dad with the family’s responses, the dad says, “Well son, potentially, we have three million dollars. Realistically, we have two sluts and a queer.”
MAGIC SQUARE: Calculate A*B+C
The aim is to place the some numbers from the list (2, 3, 4, 25, 26, 27, 42, 43, 44) 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
Julian Lowell CoolidgeBorn 28 Sep 1873; died 5 Mar 1954 at age 80. American mathematician and educator noted for numerous published works in theoretical mathematics. He earned a B.A. degree at Harvard (1895), then a B.Sc. (1897) from Oxford, England, the first natural science degree ever awarded at Oxford. He began teaching at Groton School, Conn. (1897-99) where one of his pupils was Franklin D Roosevelt, the future U.S. president. Coolidge was an instructor at Harvard University, taking leave to study abroad (1902-04) with Corrado Segre at Turin and Eduard Studyat the University of Bonn ( Ph.D. 1904). When he returned to Harvard, he remained there for the rest of his career. Later in life, he took an interest in his subject's history, writing Mathematics of the Great Amateurs (1949).« |
Find number abc
If 56b5c - baba5 = 26a54 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 7562
NUMBERMANIA: Calculate the number 7562 using numbers [7, 8, 5, 4, 15, 954] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Find number abc
If a0a1a + b99ca = 140ba4 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
Calculate the number 4066
NUMBERMANIA: Calculate the number 4066 using numbers [8, 2, 1, 9, 63, 350] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
