Daily Brain Teasers for Thursday, 09 October 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 (2, 5, 6, 8, 17, 18, 20, 35, 36, 38) 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 692c0 + a4bbb = cb376b 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
Qualifying For Heaven
Recently a teacher, a garbage collector, and a lawyer wound up together at the Pearly Gates. St. Peter informed them that in order to get into Heaven, they would each have to answer one question.
St. Peter addressed the teacher and asked, "What was the name of the ship that crashed into the iceberg? They just made a movie about it."
The teacher answered quickly, "That would be the Titanic." St. Peter let him through the gate.
St. Peter turned to the garbage man and, figuring Heaven didn't *really* need all the odors that this guy would bring with him, decided to make the question a little harder: "How many people died on the ship?"
Fortunately for him, the trash man had just seen the movie. "1,228," he answered.
"That's right! You may enter."
St. Peter turned to the lawyer. "Name them."
St. Peter addressed the teacher and asked, "What was the name of the ship that crashed into the iceberg? They just made a movie about it."
The teacher answered quickly, "That would be the Titanic." St. Peter let him through the gate.
St. Peter turned to the garbage man and, figuring Heaven didn't *really* need all the odors that this guy would bring with him, decided to make the question a little harder: "How many people died on the ship?"
Fortunately for him, the trash man had just seen the movie. "1,228," he answered.
"That's right! You may enter."
St. Peter turned to the lawyer. "Name them."
Calculate the number 9167
NUMBERMANIA: Calculate the number 9167 using numbers [3, 7, 9, 6, 41, 893] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
#brainteasers #math #numbermania
Sir Cyril Norman HinshelwoodDied 9 Oct 1967 at age 70 (born 19 Jun 1897). English physical chemist who worked on reaction rates and reaction mechanisms, particularly that of the combination of hydrogen and oxygen to form water, one of the most fundamental combining reactions in chemistry. For this work he shared the 1956 Nobel Prize for Chemistry with Soviet scientist Nikolay Semyonov. Other important chain reactions are the combustion of carbon monoxide and of hydrocarbons. When it seemed that almost all reactions were chain reactions, one might believe the simpler mechanisms previously thought of were exceptions. But Hinshelwood found substances which could simultaneously react in two ways, one part reacting by a chain mechanism and at the same time the rest reacting in the old-fashioned way. |
Find number abc
If 9ab5c + 1018b = 10a5b7 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 6370
NUMBERMANIA: Calculate the number 6370 using numbers [2, 8, 2, 6, 15, 812] 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 (10, 11, 12, 20, 21, 22, 27, 32, 55, 56, 57, 72) 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 5b95a - c005c = ab89b 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
