| Marx Brothers straight man | 26 |
| Youngest of the Marx Brothers | 29 |
| Youngest of five famous brothers | 32 |
| Youngest Marx | 13 |
| Stage name of Herbert Marx | 26 |
| One of a zany foursome | 22 |
| Marx-man | 8 |
| Herbert Marx, on stage | 22 |
| Herbert Marx | 12 |
| Brother-act nickname | 20 |
| Youngest of a zany foursome | 27 |
| Youngest member of a noted comedy troupe | 40 |
| Prestone competitor | 19 |
| Prestone rival | 14 |
| Antifreeze made by Valvoline | 28 |
| Antifreeze brand | 16 |
| Google Easter egg game wherein a pack of O's devours your search results | 76 |
| Part of a shutout score | 23 |
| Gene's costar in "The Producers" | 46 |
| Mostel | 6 |
| Abysmal test score | 18 |
| You can't divide by it | 26 |
| Mayan mathematical innovation | 29 |
| Celsius freezing point | 22 |
| A memorable Mostel | 18 |
| World dodo population | 21 |
| Love, in tennis | 15 |
| Home (in on) | 12 |
| Half of 10? | 11 |
| Centigrade freezing point | 25 |
| Beetle Bailey's pal | 23 |
| Abysmal grade | 13 |
| "Beetle Bailey" simpleton | 35 |
| "Beetle Bailey" boob | 30 |
| Word appearing before or after each word in the long theme entries | 66 |
| Sucky attendance count | 22 |
| Reset figure | 12 |
| Operator's number? | 22 |
| Number in the Cookie Monster song "They Not Take That Away From Me" | 77 |
| Mr. Mostel | 10 |
| Love, to Venus? | 15 |
| Japanese fighter plane | 22 |
| Goose egg, in sports | 20 |
| Cold reading | 12 |
| Centigrade freezing point of water | 34 |
| Celsius ice point | 17 |
| Ceiling ___ | 11 |
| Actor Mostel | 12 |
| A round number ends in it | 25 |
| Worthless sort | 14 |
| Worst possible test score | 25 |
| Worst possible score | 20 |
| Worst mark | 10 |
| Word with ground or absolute | 28 |
| Word on a Smashing Pumpkins shirt | 33 |
| Winning score in darts | 22 |
| W.W. II Japanese plane | 22 |
| Value of tens and face cards in baccarat | 40 |
| Unsigned point on a number line | 31 |
| Two before two? | 15 |
| Total loser | 11 |
| The year that wasn't? | 25 |
| Tevye portrayer on stage | 24 |
| Terrible test score | 19 |
| Sum of opposites | 16 |
| Sugar-free Coca-Cola variety | 28 |
| Speedometer's lowest reading | 32 |
| Speedometer digit | 17 |
| Shutout score feature | 21 |
| Score for a gutter ball | 23 |
| Roulette number that loses on bets of both even and odd | 55 |
| Reset, with "out" | 27 |
| Reset, as an odometer | 21 |
| Reduce to nothing | 17 |
| Population-growth number | 24 |
| Part of ZPG | 11 |
| Part of binary code | 19 |
| Open love? | 10 |
| One out of 10? | 14 |
| One of six in 1,000,000 | 23 |
| One of a hundred in a googol | 28 |
| One of a googol in a googolplex | 31 |
| One less? | 9 |
| One goes after it | 17 |
| Number that's neither positive nor negative | 47 |
| Number that shouldn't be a denominator | 42 |
| Number that is neither positive nor negative | 44 |
| Number of Super Bowls Dan Marino won | 36 |
| Number of remaining dodo birds | 30 |
| Number of items in a null set | 29 |
| Number of calories in water | 27 |
| Nought | 6 |
| Nothing, in a sports score | 26 |
| Nothing at Wimbledon | 20 |
| Nobody, slangily | 16 |
| No-show's score | 19 |
| Much-repeated part of binary code | 33 |
| Mostel, of "The Producers" | 36 |
| Mostel in The Producers | 27 |
| Memorable Mostel | 16 |