| 21st Greek letter | 17 |
| 21st Hebrew letter | 18 |
| 21st letter | 11 |
| 21st president's monogram | 29 |
| 21st U.S. president's monogram | 34 |
| 21st word of the Pledge of Allegiance | 37 |
| 21st, e.g.: Abbr. | 17 |
| 21st-amendment backers | 22 |
| 21st-century | 12 |
| 21st-century conflict | 21 |
| 21st-century currency | 21 |
| 21st-century date | 17 |
| 21st-century epidemic concern | 29 |
| 21st-century pastime for treasure hunters | 41 |
| 21st-century Russian leader | 27 |
| 21st-century starter | 20 |
| 21st-century year | 17 |
| 22 Mozart works | 15 |
| 22 of 50 | 8 |
| 22 of the 26 letters of the alphabet, in D.C. | 45 |
| 22-Acr. business | 16 |
| 22-year-old Stanford graduate who became a pro golfer more than six years ago | 77 |
| 22.5 deg. | 9 |
| 22.5 deg. on the compass | 24 |
| 22.5 degrees | 12 |
| 22.5º | 8 |
| 220 | 3 |
| 220 yards square, perhaps | 25 |
| 220-by-198-foot plot, e.g. | 26 |
| 2200 | 4 |
| 2200 hours | 10 |
| 2204.62 avoirdupois pounds | 26 |
| 2204.62 pounds | 14 |
| 225, to Cicero | 14 |
| 22° 30' | 14 |
| 22mm or 12ga. | 13 |
| 22nd and 24th president | 23 |
| 22nd chapter of a fraternity | 28 |
| 22nd Greek letter | 17 |
| 22nd in a Sue Grafton series | 28 |
| 22nd-century date | 17 |
| 23 follower | 11 |
| 23 million year stretch during the Cenozoic era | 47 |
| 23 of 24 | 8 |
| 23 out of the 44 Super Bowl MVPS | 32 |
| 23% of D | 8 |
| 232-yr.-old land | 16 |
| 234, as of July 4, 2010? | 24 |
| 23d of a series | 15 |
| 23rd Greek letter | 17 |
| 23rd Hebrew letter | 18 |
| 23rd in a series | 16 |
| 23rd letter | 11 |
| 23rd letter of the Greek alphabet | 33 |
| 23rd letter of the Hebrew alphabet | 34 |
| 23rd letter on the Peloponnesus | 31 |
| 23rd of 24 letters | 18 |
| 23rd of a Greek series | 22 |
| 23rd president, informally | 26 |
| 24 between Berlin and Hamburg, e.g. | 35 |
| 24 blue hrs. | 12 |
| 24 bottles | 10 |
| 24 bottles of beer | 18 |
| 24 bottles, often | 17 |
| 24 cans | 7 |
| 24 cans of beer | 15 |
| 24 cans of beer, e.g. | 21 |
| 24 horas | 8 |
| 24 hour periods | 15 |
| 24 hours | 8 |
| 24 hours a day | 14 |
| 24 hours ago | 12 |
| 24 hours from now | 17 |
| 24 hours in a Paris jail | 24 |
| 24 hours of fun with some nuts? | 31 |
| 24 Hours of Le ___ (auto race) | 30 |
| 24 Hours of __: annual auto race | 32 |
| 24 hours ___ | 12 |
| 24 hours, for the earth | 23 |
| 24 hr. banker | 13 |
| 24 hr. dispenser | 16 |
| 24 hrs. ago | 11 |
| 24 hrs. on Omaha Beach | 22 |
| 24 is pure | 10 |
| 24 minutes of basketball | 24 |
| 24 minutes, in the NBA | 22 |
| 24 minutes, maybe | 17 |
| 24 of them = 100%: Abbr. | 24 |
| 24 sheets | 9 |
| 24 sheets of paper | 18 |
| 24 undeveloped photos of Old Faithful? | 38 |
| 24 ___ week (poor diet) | 23 |
| 24- -- gold | 11 |
| 24-7, 365 business sign | 23 |
| 24-8-20-16-11 | 13 |
| 24-book Bronze Age narrative | 28 |
| 24-book epic | 12 |
| 24-book epic poem | 17 |
| 24-book epic poem of more than 15,000 lines | 43 |
| 24-book Greek epic | 18 |