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  2. 30 Math Puzzles (with Answers) to Test Your Smarts - AOL

    www.aol.com/30-math-puzzles-answers-test...

    The post 30 Math Puzzles (with Answers) to Test Your Smarts appeared first on Reader's Digest. ... if you prefer your riddles free of math, we have great riddles ... 20 Printable Sudoku Puzzles to ...

  3. Monty Hall problem - Wikipedia

    en.wikipedia.org/wiki/Monty_Hall_problem

    With his strategy, the player has a win-chance of at least ⁠ 2 / 3 ⁠, however the TV station plays; with the TV station's strategy, the TV station will lose with probability at most ⁠ 2 / 3 ⁠, however the player plays. The fact that these two strategies match (at least ⁠ 2 / 3 ⁠, at most ⁠ 2 / 3 ⁠) proves that they form the ...

  4. Conway puzzle - Wikipedia

    en.wikipedia.org/wiki/Conway_puzzle

    A possible placement for the three 1×1×3 blocks – the vertical block has corners touching corners of the two horizontal blocks The solution of the Conway puzzle is straightforward once one realizes, based on parity considerations, that the three 1 × 1 × 3 blocks need to be placed so that precisely one of them appears in each 5 × 5 × 1 slice of the cube. [2]

  5. Two-cube calendar - Wikipedia

    en.wikipedia.org/wiki/Two-cube_calendar

    A puzzle about the two-cube calendar was described in Gardner's column in Scientific American. [1] [2] In the puzzle discussed in Mathematical Circus (1992), two visible faces of one cube have digits 1 and 2 on them, and three visible faces of another cube have digits 3, 4, 5 on them. The cubes are arranged so that their front faces indicate ...

  6. Combination puzzle - Wikipedia

    en.wikipedia.org/wiki/Combination_puzzle

    The picture here shows two 3×3×3 cubes that have been fused. The largest example known to exist is in The Puzzle Museum [8] and consists of three 5×5×5 cubes that are siamese fused 2×2×5 in two places. there is also a "2 3x3x3 fused 2x2x2" version called the fused cube. The first Siamese cube was made by Tony Fisher in 1981. [9]

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