puzzler
  使困惑的人,難題
  Puz·zler n. One who, or that which, puzzles or perplexes.
     Hebrew, the general puzzler of old heads.   --Brome.
  ◄ ►
  puzzler
       n : a particularly baffling problem that is said to have a
           correct solution; "he loved to solve chessmate puzzles";
           "that's a real puzzler" [syn: puzzle, mystifier, teaser]