| Hercules-vs.-lion site | 22 |
| Hercules slew its lion | 22 |
| Herculean labor site | 20 |
| Greek valley | 12 |
| Festival site in ancient Greece | 31 |
| Battle site: 394 B.C. | 21 |
| Battle site: 344 B.C. | 21 |
| Argolic valley of games | 23 |
| Ancient Greek site where Hercules slew the lion | 47 |
| Ancient Greek city with a mythical lion | 39 |
| Formidable opponents | 20 |
| Waterloos | 9 |
| Unbeatable opponents | 20 |
| They can't be beat | 22 |
| Avengers | 8 |
| Arch enemies | 12 |
| Agents of retribution | 21 |
| Usually unbeatable rivals | 25 |
| They're unconquerable | 25 |
| They're unbeatable | 22 |
| The Steelers, to the Ravens | 27 |
| Superheroes, to villains | 24 |
| Holmes and Moriarty, e.g. | 25 |
| Formidable rivals | 17 |
| Banes | 5 |
| Archrivals | 10 |
| Unbeatable rivals | 17 |
| Unbeatable archenemies | 22 |
| Tough rivals | 12 |
| Tough opponents | 15 |
| Those imposing retribution | 26 |
| They give comeuppances | 22 |
| They can't be beaten | 24 |
| The Ravens, to the Steelers | 27 |
| Rivals to who one always loses | 30 |
| Plan foilers, perhaps | 21 |
| Luthor and Brainiac, to Superman | 32 |
| Like Batman and Robin to the Joker | 34 |
| Inflicters of retribution | 25 |
| Formidable foes | 15 |
| Fighting types | 14 |
| Bond and Blofeld, e.g. | 22 |
| Batman and Superman, to villains | 32 |
| Batman and Robin, to Catwoman | 29 |
| Archenemies, maybe | 18 |
| Retribution | 11 |
| Unconquerable foe | 17 |
| Unbeatable foe | 14 |
| Formidable foe | 14 |
| Archenemy | 9 |
| Yankees, to the Red Sox | 23 |
| Unbeatable rival | 16 |
| Formidable rival | 16 |
| Arch enemy | 10 |
| Old enemy | 9 |
| "Star Trek: ___" | 26 |
| Very tough thing to lick | 24 |
| Vengeance deified | 17 |
| Unbeatable scourge | 18 |
| Newman, to Jerry Seinfeld | 25 |
| Ness vis-à-vis Capone | 28 |
| Macduff, to Macbeth | 19 |
| Lifelong foe | 12 |
| Just punishment | 15 |
| Goddess of righteous anger | 26 |
| Bête noire's relative | 28 |
| Batman, to the Riddler | 22 |
| Batman, to the Joker | 20 |
| 2002's "Star Trek: ___" | 37 |
| 1989 Isaac Asimov book | 22 |
| Lost little fish of film | 24 |
| Verne captain | 13 |
| Nautilus captain | 16 |
| Verne's captain | 19 |
| Jules Verne captain | 19 |
| Verne character | 15 |
| Clownfish of film | 17 |
| Captain of the Nautilus | 23 |
| Nautilus skipper | 16 |
| Thread: Prefix | 14 |
| Animated fish | 13 |
| Verne skipper | 13 |
| 2003 clownfish of filmdom | 25 |
| Pixar fish | 10 |
| Fictional submariner | 20 |
| 'Finding --' | 20 |
| Pixar clownfish | 15 |
| Fictional sub captain | 21 |
| Disney fish | 11 |
| Skipper of the Nautilus | 23 |
| Pixar title character | 21 |
| Lost fish of film | 17 |
| Fish in a Pixar pic | 19 |
| Film fish | 9 |
| Verne's skipper | 19 |
| Remote telecast | 15 |
| Disney clownfish | 16 |
| Animated clownfish | 18 |
| Verne's sub captain | 23 |
| Movie fish | 10 |