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  2. Three cups problem - Wikipedia

    en.wikipedia.org/wiki/Three_cups_problem

    The solvable version of the problem. Here, cups A and C are upside down, and cup B is upright. The three cups problem, also known as the three cup challenge and other variants, is a mathematical puzzle that, in its most common form, cannot be solved. In the beginning position of the problem, one cup is upside-down and the other two are right ...

  3. List of logic symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_logic_symbols

    In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.

  4. Upside-down question and exclamation marks - Wikipedia

    en.wikipedia.org/wiki/Upside-down_question_and...

    Upside-down marks, simple in the era of hand typesetting, were originally recommended by the Real Academia Española (Royal Spanish Academy), in the second edition of the Ortografía de la lengua castellana (Orthography of the Castilian language) in 1754 [3] recommending it as the symbol indicating the beginning of a question in written Spanish—e.g. "¿Cuántos años tienes?"

  5. 275 Fun Yes or No Questions for Every Social Situation - AOL

    www.aol.com/lifestyle/275-fun-yes-no-questions...

    Make a game out of getting to know someone better.

  6. 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 ...

  7. Interrobang - Wikipedia

    en.wikipedia.org/wiki/Interrobang

    An upside-down interrobang (combining ¿ and ¡, Unicode character: ⸘), suitable for starting phrases in Spanish, Galician and Asturian—which use inverted question and exclamation marks—is called an "inverted interrobang" or a gnaborretni (interrobang spelled backwards), but the latter is rarely used. [17]

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. McDonald's is flipping its iconic arches upside down in an ...

    www.aol.com/article/finance/2018/03/07/mcdonalds...

    A McDonald's in Lynwood, California, has turned its golden-arches sign upside down — and the chain's logos on social media are about to follow suit. A McDonald's in Lynwood, California, has ...