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  2. 68 (number) - Wikipedia

    en.wikipedia.org/wiki/68_(number)

    68 is a composite number; a square-prime, of the form (p 2, q) where q is a higher prime. It is the eighth of this form and the sixth of the form (2 2.q). 68 is a Perrin number. [1] It has an aliquot sum of 58 within an aliquot sequence of two composite numbers (68, 58,32,31,1,0) to the Prime in the 31-aliquot tree.

  3. Age of the captain - Wikipedia

    en.wikipedia.org/wiki/Age_of_the_captain

    Many children in elementary school, from different parts of the world, attempt to "solve" this nonsensical problem by giving the answer 36, obtained by adding the numbers 26 and 10. [ 4 ] [ 5 ] It has been suggested that this indicates schooling and education fail to instill critical thinking in children, and do not teach them that a question ...

  4. 45 Best Bible Riddles You’ll Have Fun Solving

    www.aol.com/45-best-bible-riddles-ll-155811658.html

    These funny Bible riddles have a mix of everything—including easy riddles, riddles for kids, tricky riddles, and even a few math riddles thrown into the mix. (Yes, even Jesus had to do math ...

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

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

    Even numbers are always 0, 2, or 4 more than a multiple of 6, while odd numbers are always 1, 3, or 5 more than a multiple of 6. Well, one of those three possibilities for odd numbers causes an issue.

  6. Can You Solve the ‘A Man Steals $100 From a Shop’ Riddle?

    www.aol.com/solve-man-steals-100-shop-111000916.html

    Recently, a tricky logic riddle has gone viral on social media, challenging people's math skills. It's known as the 'A Man Steals $100 From a Shop' riddle . And one thing's for sure: it's making ...

  7. Parity (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Parity_(mathematics)

    The even numbers form an ideal in the ring of integers, [13] but the odd numbers do not—this is clear from the fact that the identity element for addition, zero, is an element of the even numbers only. An integer is even if it is congruent to 0 modulo this ideal, in other words if it is congruent to 0 modulo 2, and odd if it is congruent to 1 ...

  8. Puzzle - Wikipedia

    en.wikipedia.org/wiki/Puzzle

    The nine linked-rings puzzle, an advanced puzzle device that requires mathematical calculation to solve, was invented in China during the Warring States period (475-221 BCE). [5] Jigsaw puzzles were invented around 1760, when John Spilsbury , a British engraver and cartographer , mounted a map on a sheet of wood, which he then sawed around the ...

  9. Quiz bowl - Wikipedia

    en.wikipedia.org/wiki/Quiz_bowl

    Quiz bowl (quizbowl, [1] scholars' bowl, scholastic bowl, academic bowl, academic team, academic challenge, etc.) is a family of quiz-based competitions that test players on a wide variety of academic subjects.

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