BRAIN TEASERS
Monthly Archive - October 2025 (page 2)

Monthly Archive - October 2025 (page 2)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 11 to 20.
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Calculate the number 1609

NUMBERMANIA: Calculate the number 1609 using numbers [8, 4, 6, 1, 43, 789] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If 62a66 + a46cb = 13a42c find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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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.
Correct answers: 0
CHECK ANSWER
#brainteasers #mastermind

I know a guy who survived an 8000-foot fall out of a plane

I know a guy who survived an 8000-foot fall out of a plane.

Until he hit the ground.

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The 1st time I went skydiving I asked the instructor how long it would take to hit the ground if my parachute didn't open.

He got a sly smile and said, "The rest of your life son."

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You know, not all Italians are in the mafia.

Some are in the Witness Protection Program.

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Wife: I can't believe they're still together after all that shit.

Me: Who?

Wife: My butt cheeks.

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HAPPY July the 1st, international JOKES day!

Jokes of the day - Daily updated jokes. New jokes every day.
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Calculate the number 6332

NUMBERMANIA: Calculate the number 6332 using numbers [9, 8, 4, 8, 39, 762] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #numbermania
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MAGIC SQUARE: Calculate A*B+C

The aim is to place the some numbers from the list (24, 25, 27, 29, 30, 32, 57, 66, 67, 69, 75) 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
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If bb31c + 2b14a = 8a4bc find number abc. Multiple solutions may exist.
Correct answers: 2
CHECK ANSWER
#brainteasers #math
[link]

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.
Correct answers: 1
CHECK ANSWER
#brainteasers #mastermind
[link]

Calculate the number 768

NUMBERMANIA: Calculate the number 768 using numbers [2, 1, 9, 5, 42, 380] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
CHECK ANSWER
#brainteasers #math #numbermania
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Find number abc

If a11a0 - 3cb47 = b8643 find number abc. Multiple solutions may exist.
Correct answers: 1
CHECK ANSWER
#brainteasers #math
[link]

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.
Correct answers: 1
CHECK ANSWER
#brainteasers #mastermind
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Merritt Lyndon Fernald

Died 22 Sep 1950 at age 76 (born 5 Oct 1873).American botanist noted for his comprehensive study of the flora of the northeastern United States. In Feb 1891, Fernald was offered a position at the Gray Herbarium of Harvard University that would allow him to work and study part-time at Harvard. He remained at the Gray Herbarium in one capacity or another for the rest of his life, beginning as an assistant, going on to be a professor, eventually as curator of the Gray Herbarium, 1935-37, and director, 1937-1947. Fernald is known for his work on phytogeography. He combined extensive field work with his herbarium work, concentrating on the flora of eastern North America. He did much exploring in Quebec in his younger years; when older, he worked in Virginia.
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