BRAIN TEASERS
The Most Difficult Tasks (page 352)

The Most Difficult Tasks (page 352)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 3511 to 3520.
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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: 25
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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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: 25
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #mastermind
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Find number abc

If 4878c + a734c = bbab2c find number abc. Multiple solutions may exist.
Correct answers: 25
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #math

Donald Glover: Serious Black Candidate

When he was coming up, people were like, We have a serious black candidate for president. This is crazy. We have a serious black candidate. And then when he won, they were like, Our first multi-racial president. And I was like, Thats not fair. I mean, lets set the record straight. If you went outside tonight after this show and Barack Obama was stealing your car, you wouldnt yell, Hey, someone stop that mixed guy!
Jokes of the day - Daily updated jokes. New jokes every day.
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Calculate the number 3473

NUMBERMANIA: Calculate the number 3473 using numbers [4, 5, 8, 7, 28, 365] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 25
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #math #numbermania
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Stealthy as a shadow in the ...

Stealthy as a shadow in the dead of night, Cunning but affectionate if given a bite. Never owned but often loved. At my sport considered cruel, But that's because you never know me at all. What am I?
Correct answers: 25
The first user who solved this task is Nasrin 24 T.
CHECK ANSWER
#brainteasers #riddles #sport
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MAGIC SQUARE: Calculate A-B+C

The aim is to place the some numbers from the list (19, 22, 23, 24, 26, 28, 61, 64, 66, 93) 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: 25
The first user who solved this task is Thinh Ddh.
CHECK ANSWER
#brainteasers #math #magicsquare
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When I'm first said, I'm qui...

When I'm first said, I'm quite mysterious, But when I'm explained, I'm nothing serious. What am I?
Correct answers: 25
The first user who solved this task is Thinh Ddh.
CHECK ANSWER
#brainteasers #riddles
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Find number abc

If 9a8bb - cbb8b = a5ac0 find number abc. Multiple solutions may exist.
Correct answers: 25
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#brainteasers #math
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Calculate the number 555

NUMBERMANIA: Calculate the number 555 using numbers [9, 1, 5, 1, 73, 633] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 25
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#brainteasers #math #numbermania
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Find a famous person

Find the first and the last name of a famous person. Text may go in all 8 directions. Length of words in solution: 5,7.
Correct answers: 25
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #wordpuzzles
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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.
Last Correct Answer

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1. H Tav
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5. Thinh Ddh
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7. Djordje Timotijevic
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Michael Idvorsky Pupin

Born 4 Oct 1858; died 12 Mar 1935 at age 76. Serbian-American physicist who devised a means of greatly extending the range of long-distance telephone communication by placing loading coils (of wire) at predetermined intervals along the transmitting wire. His parents were illiterate, but they encouraged his education. Pupin became an instructor in mathematical physics (1890) at Columbia University, New York City. In 1986, he discovered that atoms struck by X rays emit secondary X-ray radiation. He also invented a means for taking short-exposure X-ray photographs. The Bell Telephone Company, in 1901, acquired the patent for his invention for long-distance telephony. Pupin won a Pulitzer Prize (1924) for his autobiographical work, From Immigrant to Inventor (1923).
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