1. [n]  a toy that tests your ingenuity
2. [n]  a particularly baffling problem that is said to have a correct solution; "he loved to solve chessmate puzzles"; "that's a real puzzler"
3. [v]  be a mystery or bewildering to; "This beats me!"; "Got me--I don't know the answer!"; "a vexing problem"
4. [v]  be uncertain about; think about without fully understanding or being able to decide; "We puzzled over her sudden departure"

Puzzle
Puzzle

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1. \Puz"zle\, n. [For opposal, in the sense of problem. See
   {Oppose}, {Pose}, v.]
   1. Something which perplexes or embarrasses; especially, a
      toy or a problem contrived for testing ingenuity; also,
      something exhibiting marvelous skill in making.
   2. The state of being puzzled; perplexity; as, to be in a
      puzzle.
   

2. \Puz"zle\, v. t. [imp. & p. p. {Puzzled}; p. pr. & vb. n.
   {Puzzling}.]
   1. To perplex; to confuse; to embarrass; to put to a stand;
      to nonplus.
            A very shrewd disputant in those points is dexterous
            in puzzling others.                   --Dr. H. More.
            He is perpetually puzzled and perplexed amidst his
            own blunders.                         --Addison.
   2. To make intricate; to entangle.
            They disentangle from the puzzled skein. --Cowper.
            The ways of Heaven are dark and intricate, Puzzled
            in mazes, and perplexed with error.   --Addison.
   3. To solve by ingenuity, as a puzzle; -- followed by out;
      as, to puzzle out a mystery.
   Syn: To embarrass; perplex; confuse; bewilder; confound. See
        {Embarrass}.
   

3. \Puz"zle\, v. i.
   1. To be bewildered, or perplexed.
            A puzzling fool, that heeds nothing.  --L'Estrange.
   2. To work, as at a puzzle; as, to puzzle over a problem.