BRAIN TEASERS
Monthly Archive - July 2025 (page 3)

Monthly Archive - July 2025 (page 3)

brain teasers, puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 21 to 30.
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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.
Correct answers: 0
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#brainteasers #math #numbermania
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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.
Correct answers: 0
CHECK ANSWER
#brainteasers #math #magicsquare
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Find number abc

If ab07c - c34cb = 4a6a2 find number abc. Multiple solutions may exist.
Correct answers: 0
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#brainteasers #math

A man boarded an airplane and...

A man boarded an airplane and took his seat. As he settled in, he glanced up and saw the most beautiful woman boarding the plane.
He soon realized she was heading straight towards his seat... As fate would have it, she took the seat right beside his. Eager to strike up a conversation he blurted out, "Business trip or pleasure?"
She turned, smiled and said, "Business. I'm going to the Annual Nymphomaniacs of America Convention in Boston."
He swallowed hard. Here was the most gorgeous woman he had ever seen sitting next to him, and she was going to a meeting of nymphomaniacs.
Struggling to maintain his composure, he calmly asked, "What's your business role at this convention?"
"Lecturer," she responded. "I use information that I have learned from my personal experiences to debunk some of the popular myths about sexuality."
"Really?" he said. "And what kind of myths are there?"
"Well," she explained, "one popular myth is that African-American men are the most well-endowed of all men, when in fact it is the Native American Indian who is most likely to possess that trait.
Another popular myth is that Frenchmen are the best lovers, when actually it is men of Jewish descent who are the best.
I have also discovered that the lover with absolutely the best stamina is the Southern Redneck."
Suddenly the woman became a little uncomfortable and blushed. "I'm sorry," she said, "I shouldn't really be discussing all of this with you. I don't even know your name.."
"Tonto," the man said, "Tonto Goldstein, but my friends call me Bubba."
Jokes of the day - Daily updated jokes. New jokes every day.
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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.
Correct answers: 0
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 1958

NUMBERMANIA: Calculate the number 1958 using numbers [7, 4, 2, 5, 59, 512] 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 9b0a5 - 1bc0a = 79259 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: 2
CHECK ANSWER
#brainteasers #mastermind
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Calculate the number 4136

NUMBERMANIA: Calculate the number 4136 using numbers [3, 6, 3, 4, 73, 763] 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 (3, 4, 6, 7, 8, 9, 10, 11, 14, 23, 27) 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 6ba99 + b0bab = 94cac find number abc. Multiple solutions may exist.
Correct answers: 0
CHECK ANSWER
#brainteasers #math
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Christian Konrad Sprengel

Born 22 Sep 1750; died 7 Apr 1816 at age 65. German botanist and teacher whose studies of sex in plants led him to a general theory of fertilization which, basically, is accepted today. Although director of a school at Spandau and tutor in Berlin, he devoted himself chiefly to the study of flowering plants. Sprengel's 1793 treatise [illustration at left] on floral structure examines the ways that flower colors, scents, shapes, and markings work harmoniously to attract insects for pollination. A clergyman and botanist, he spent his life researching the role played by the wind and insects in the fertilization of flowers. Although Sprengel's work was neglected by his contemporaries, Charles Darwin later praised Sprengel's work and brought it brought to public attention.
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