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 Previous Logic Puzzle Next Logic Puzzle Puzzle 109.  HALLOWEEN PARTY Mrs. Green, Mrs. Brown, and Mrs. Blue attended a Halloween Party.  They came wearing green, brown, and blue costumes but not necessarily in their respective order.  Mrs. Green said to the lady wearing the brown costume, "Did you notice that the three of us are wearing costumes having colors not corresponding to our names?" Determine which colored costume each of them wore during the Halloween Party. More Logic Puzzles Previous Puzzle Next Puzzle

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PRIME NUMBERS

Prime numbers have captured the hearts of many mathematicians for centuries.  During 18th century, mathematician Christian Goldbach (1690-1764) wrote to Leonhard Euler that he believed it could be shown that every even integer greater than 2 is the sum of 2 primes.  For example, 30 = 23+7 and  36 = 13+23.  Until now, this conjecture has neither been proved or disproved.

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