BRAIN TEASERS
The Most Difficult Tasks (page 469)

The Most Difficult Tasks (page 469)

puzzles, riddles, mathematical problems, mastermind, cinemania... These are the tasks listed 4681 to 4690.
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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: 34
The first user who solved this task is Nílton Corrêa De Sousa.
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Find number abc

If cb4a4 + bc22a = 110b12 find number abc. Multiple solutions may exist.
Correct answers: 34
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Chess Knight Move

Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,4,7.
Correct answers: 34
The first user who solved this task is Nílton Corrêa De Sousa.
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#brainteasers #wordpuzzles #chessknightmove

 Are You Talking To Me?


At the height of a political corruption trial, the prosecuting attorney attacked a witness. "Isn't it true," he bellowed, "that you accepted five thousand dollars to compromise this case?"
The witness stared out the window, as though he hadn't heard the question.
"Isn't it true that you accepted five thousand dollars to compromise this case?" the lawyer repeated.
The witness still did not respond.
Finally, the judge leaned over and said, "Sir, please answer the question."
"Oh," the startled witness said, "I thought he was talking to you."
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Find number abc

If 8a125 - 1b888 = c52bc find number abc. Multiple solutions may exist.
Correct answers: 34
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Chess Knight Move

Find the title of novel, using the move of a chess knight. First letter is T. Length of words in solution: 3,5,6.
Correct answers: 34
The first user who solved this task is Nílton Corrêa De Sousa.
CHECK ANSWER
#brainteasers #wordpuzzles #chessknightmove
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Find number abc

If abca8 + 48a6a = 87601 find number abc. Multiple solutions may exist.
Correct answers: 34
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Chess Knight Move

Find the title of novel, using the move of a chess knight. First letter is L. Length of words in solution: 4,2,3,5.
Correct answers: 34
The first user who solved this task is Djordje Timotijevic.
CHECK ANSWER
#brainteasers #wordpuzzles #chessknightmove
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Find number abc

If a3b3a + 369c3 = b2cc4b find number abc. Multiple solutions may exist.
Correct answers: 34
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #math
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Remove 6 letters from this seq...

Remove 6 letters from this sequence (AHXPDVOCBATEIA) to reveal a familiar English word.
Correct answers: 34
The first user who solved this task is Djordje Timotijevic.
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#brainteasers #wordpuzzles
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Remove 5 letters from this seq...

Remove 5 letters from this sequence (ACOMUMEUNIBTIEAS) to reveal a familiar English word.
Correct answers: 34
The first user who solved this task is Djordje Timotijevic.
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.
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Prions

In 1997, American biology professor Stanley B. Prusiner won the Nobel Prize for medicine for discovering “prions,” described as “an entirely new genre of disease-causing agents.” The name means “proteinaceous infectious particle.” Prions cause brain diseases such as BSE (Bovine Spongiform Encephalopathy or “mad cow disease”); the human variant Creutzfeldt–Jakob disease; kuru among some peoples in New Guinea; and scrapie in sheep and goats. Prions are too small to be seen with normal microscopy. They are self-replicating, but contain no nucleic acid. Prions are highly resistant to destruction or denaturation by common chemical and physical agents such as disinfectants, formalin, heat, UV or ionizing radiation. Inceration of infected tissues requires a temperature never below 900ºF for four hours.«
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