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

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

   Answer: 6. Read from left to right as a series of numbers that are always divided by four (or by two if you alternate between the top and bottom rows). 96 ÷ 4 = 24; 24 ÷ 4 = 6 (or 06); 48 ÷ 4 = 12.

3. Hoffman's packing puzzle - Wikipedia

   en.wikipedia.org/wiki/Hoffman's_packing_puzzle

   Each valid solution to the puzzle arranges the blocks in an approximate 3 × 3 × 3 grid of blocks, with the sides of the blocks all parallel to the sides of the outer cube, and with one block of each width along each axis-parallel line of three blocks. Counting reflections and rotations as being the same solution as each other, the puzzle has ...

4. 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 ...

5. Combination puzzle - Wikipedia

   en.wikipedia.org/wiki/Combination_puzzle

   A combination puzzle collection A disassembled modern Rubik's 3x3. A combination puzzle, also known as a sequential move puzzle, is a puzzle which consists of a set of pieces which can be manipulated into different combinations by a group of operations.

6. Recreational mathematics - Wikipedia

   en.wikipedia.org/wiki/Recreational_mathematics

   Some of the more well-known topics in recreational mathematics are Rubik's Cubes, magic squares, fractals, logic puzzles and mathematical chess problems, but this area of mathematics includes the aesthetics and culture of mathematics, peculiar or amusing stories and coincidences about mathematics, and the personal lives of mathematicians.

7. Professor's Cube - Wikipedia

   en.wikipedia.org/wiki/Professor's_Cube

   The Professor's Cube (also known as the 5×5×5 Rubik's Cube and many other names, depending on manufacturer) is a 5×5×5 version of the original Rubik's Cube. It has qualities in common with both the 3×3×3 Rubik's Cube and the 4×4×4 Rubik's Revenge , and solution strategies for both can be applied.