"Conundrum" is the title of the 22nd episode of the fourteenth season of the American television drama series Dallas. It is also the 356th and last episode of the original Dallas series. The episode originally aired on CBS on Friday, May 3, 1991 as a double-length episode. Subsequent airings in syndication split the episode into individual hours, which raises the total episode count to 23 for the season and 357 for the series.