puzzle/ 'p^zl /

1.noun [c] 
(for entertainment) (riddle,conundrum) 谜

2.noun
(game) 测智游戏

3.noun
(toy) 测智玩具

4.noun [s] 
(mystery) 谜团

5.vt.
(baffle) 使困惑

6.vi.
to puzzle over sth 对某事冥思苦想