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  2. 24 (puzzle) - Wikipedia

    en.wikipedia.org/wiki/24_(puzzle)

    The original version of 24 is played with an ordinary deck of playing cards with all the face cards removed. The aces are taken to have the value 1 and the basic game proceeds by having 4 cards dealt and the first player that can achieve the number 24 exactly using only allowed operations (addition, subtraction, multiplication, division, and parentheses) wins the hand.

  3. Benacerraf's identification problem - Wikipedia

    en.wikipedia.org/wiki/Benacerraf's_identification...

    In the philosophy of mathematics, Benacerraf's identification problem is a philosophical argument developed by Paul Benacerraf against set-theoretic Platonism and published in 1965 in an article entitled "What Numbers Could Not Be". [1] [2] Historically, the work became a significant catalyst in motivating the development of mathematical ...

  4. 100 prisoners problem - Wikipedia

    en.wikipedia.org/wiki/100_prisoners_problem

    The probability that all prisoners find their numbers is the product of the single probabilities, which is (⁠ 1 / 2 ⁠) 100 ≈ 0.000 000 000 000 000 000 000 000 000 0008, a vanishingly small number. The situation appears hopeless.

  5. Guess 2/3 of the average - Wikipedia

    en.wikipedia.org/wiki/Guess_2/3_of_the_average

    In game theory, "guess ⁠ 2 / 3 of the average" is a game where players simultaneously select a real number between 0 and 100, inclusive. The winner of the game is the player(s) who select a number closest to ⁠ 2 / 3 of the average of numbers chosen by all players. [1]

  6. Four fours - Wikipedia

    en.wikipedia.org/wiki/Four_fours

    Four fours is a mathematical puzzle, the goal of which is to find the simplest mathematical expression for every whole number from 0 to some maximum, using only common mathematical symbols and the digit four.

  7. 'Survivor 45's Challenge Twist Shakes Up the Votes Like Never ...

    www.aol.com/lifestyle/survivor-45s-challenge...

    This week saw a brand new twist in the challenge. The Final 9 were divided into three trios to start. Whichever trio finished in last in the first part of the challenge automatically lost their ...

  8. Instant Insanity - Wikipedia

    en.wikipedia.org/wiki/Instant_Insanity

    To find a solution to this problem we need the arrangement of four faces of each of the cubes. To represent the information of two opposite faces of all the four cubes we need a directed subgraph instead of an undirected one because two directions can only represent two opposite faces, but not whether a face should be at the front or at the back.

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