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  2. The Hardest Logic Puzzle Ever - Wikipedia

    en.wikipedia.org/wiki/The_Hardest_Logic_Puzzle_Ever

    Richard Webb. Three gods, three questions: The Hardest Logic Puzzle Ever. (New Scientist, Volume 216, Issues 2896–2897, 22–29 December 2012, Pages 50–52.) Tom Ellis. Even harder than the hardest logic puzzle ever. Stefan Wintein. Playing with Truth. Walter Carnielli. Contrafactuais, contradição e o enigma lógico mais difícil do mundo.

  3. Knights and Knaves - Wikipedia

    en.wikipedia.org/wiki/Knights_and_Knaves

    A further complication is that the inhabitants may answer yes–no questions in their own language, and the visitor knows that "bal" and "da" mean "yes" and "no" but does not know which is which. These types of puzzles were a major inspiration for what has become known as "the hardest logic puzzle ever".

  4. Raymond Smullyan - Wikipedia

    en.wikipedia.org/wiki/Raymond_Smullyan

    In more complex puzzles, he introduces characters who may lie or tell the truth (referred to as "normals"), and furthermore instead of answering "yes" or "no", use words which mean "yes" or "no", but the reader does not know which word means which. The puzzle known as "the hardest logic puzzle ever" is based on these characters and themes. In ...

  5. 10 Hard Math Problems That Even the Smartest People in the ...

    www.aol.com/10-hard-math-problems-even-150000090...

    Goldbach’s Conjecture. One of the greatest unsolved mysteries in math is also very easy to write. Goldbach’s Conjecture is, “Every even number (greater than two) is the sum of two primes ...

  6. Zebra Puzzle - Wikipedia

    en.wikipedia.org/wiki/Zebra_Puzzle

    The Zebra Puzzle is a well-known logic puzzle.Many versions of the puzzle exist, including a version published in Life International magazine on December 17, 1962. The March 25, 1963, issue of Life contained the solution and the names of several hundred successful solvers from around the world.

  7. LSAT Logical Reasoning Questions: What to Know - AOL

    www.aol.com/news/lsat-logical-reasoning...

    Logical arguments are simple chains of statements people make to explain something they believe or notice about themselves, other people or the world at large. LSAT Logical Reasoning Questions ...

  8. The Impossible Quiz - Wikipedia

    en.wikipedia.org/wiki/The_Impossible_Quiz

    In the mobile versions, a feature called a "Moron Mark" appears every 20 questions which allows players to reset from a particular question if all lives are lost. [2] The quiz was also noted for its irreverent humor. [1] [6] Some questions contained references to video games and popular culture, [3] [7] while other questions consisted of ...

  9. 50 tough tongue twisters to challenge yourself and your friends

    www.aol.com/news/50-tough-tongue-twisters...

    These 50 tongue twisters range from easy to hard (including the world's toughest tongue twister!) to improve your pronunciation and entertain adults and kids.