Conundrum
01
谜题, 难题
a problem or question that is confusing and needs a lot of skill or effort to solve or answer
例子
The meaning of life has always been a conundrum that philosophers have pondered for centuries.
生命的意义一直是一个难题，几个世纪以来哲学家们一直在思考。
The researchers faced a conundrum when the experimental results contradicted their initial hypothesis.
研究人员在实验结果与他们的初始假设相矛盾时面临了一个难题。
02
a puzzling question or riddle, often involving wordplay, posed for amusement
例子
The game included a series of conundrums to test the players' wit.
The teacher asked the class a conundrum to make them think.
