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  2. Hilbert's third problem - Wikipedia

    en.wikipedia.org/wiki/Hilbert's_third_problem

    The third of Hilbert's list of mathematical problems, presented in 1900, was the first to be solved. The problem is related to the following question: given any two polyhedra of equal volume , is it always possible to cut the first into finitely many polyhedral pieces which can be reassembled to yield the second?

  3. The Hardest Logic Puzzle Ever - Wikipedia

    en.wikipedia.org/wiki/The_Hardest_Logic_Puzzle_Ever

    Boolos provides the following clarifications: [1] a single god may be asked more than one question, questions are permitted to depend on the answers to earlier questions, and the nature of Random's response should be thought of as depending on the flip of a fair coin hidden in his brain: if the coin comes down heads, he speaks truly; if tails ...

  4. List of impossible puzzles - Wikipedia

    en.wikipedia.org/wiki/List_of_impossible_puzzles

    It is impossible to solve in half of the starting positions. [1] Five room puzzle – Cross each wall of a diagram exactly once with a continuous line. [2] MU puzzle – Transform the string MI to MU according to a set of rules. [3] Mutilated chessboard problem – Place 31 dominoes of size 2×1 on a chessboard with two opposite corners removed ...

  5. Three cups problem - Wikipedia

    en.wikipedia.org/wiki/Three_cups_problem

    Changing 1 right cup and 1 wrong cup, the situation remains the same. Changing 2 right cups results in a situation with 3 wrong cups, after which the next move restores the original status of 1 wrong cup. Thus, any number of moves results in a situation either with 3 wrongs or with 1 wrong, and never with 0 wrongs.

  6. The Challenge: World Championship Finale Recap: Who ... - AOL

    www.aol.com/challenge-world-championship-finale...

    For the four checkpoints, teams must drink a disgusting smoothie, crack a code in a number game, toss large screws into a target, and arrange weights in order of lightest to heaviest.

  7. Impossible (game show) - Wikipedia

    en.wikipedia.org/wiki/Impossible_(game_show)

    Impossible (stylised as !mpossible) is a British television quiz show created by Hugh Rycroft and produced by Mighty Productions for BBC One.Hosted by Rick Edwards, the show has a maximum prize of £10,000 and features questions in which some answer choices are "impossible" or inconsistent with the given category.

  8. The Impossible Quiz - Wikipedia

    en.wikipedia.org/wiki/The_Impossible_Quiz

    The Impossible Quiz is a point-and-click quiz game that consists of 110 questions, [1] [2] using "Gonna Fly Now" as its main musical theme. Notorious for its difficulty, the quiz mixes multiple-choice trick questions similar to riddles, along with various challenges and puzzles. [1] [2] Despite the quiz's name and arduousness, the game is ...

  9. Tower of Hanoi - Wikipedia

    en.wikipedia.org/wiki/Tower_of_Hanoi

    If h > 1, then again use this procedure to move the h − 1 smaller disks from peg B to peg C. By mathematical induction , it is easily proven that the above procedure requires the minimum number of moves possible and that the produced solution is the only one with this minimal number of moves.