| Only one of the Seven Dwarfs to wear glasses | 44 |
| Only one bears the name of a U.S. president | 43 |
| Only O.T. book that never mentions God: Abbr. | 45 |
| Only Norwegian band to do a James Bond theme song | 49 |
| Only nonrhyming ghost in Ms. Pac-Man | 36 |
| Only non-U.S. M.L.B. team: Abbr. | 32 |
| Only non-U.S. M.L.B. team, on scoreboards | 41 |
| Only NFL coach to have a perfect season | 39 |
| Only NFC team to never to play in the Super Bowl | 48 |
| Only N.L. pitcher to win four Cy Young Awards | 45 |
| Only murderer to be named Super Bowl MVP | 40 |
| Only Mouseketeer personally chosen by Walt Disney | 49 |
| Only money accepted at the Sky Mall? | 36 |
| Only mo. that can start and end on the same day | 47 |
| Only mo. that can begin and end on the same day | 47 |
| Only mo. all four major sports are played | 41 |
| Only MLB'er to hit 60 homers thrice | 39 |
| Only metal that's liquid at room temperature | 48 |
| Only Met ever to have a 30-game hitting streak | 46 |
| Only man to win two tennis Grand Slams | 38 |
| Only man to win both a Nobel Prize and an Oscar | 47 |
| Only man to be U.S. President and Chief Justice | 47 |
| Only mammal with horns made of keratin | 38 |
| Only male singles Career Golden Slam winner | 43 |
| Only major tourney that Sam Snead failed to win | 47 |
| Only Literature Nobelist also to win an Oscar | 45 |
| Only key Irving Berlin composed in | 34 |
| Only just managed, with "out" | 39 |
| Only just managed (with "out") | 40 |
| Only Indonesian-speaking President | 34 |
| Only inanimate zodiac representation | 36 |
| Only if it's worth the trade-off | 36 |
| Only horse to defeat Man o' War | 35 |
| Only horse to beat Man o' War | 33 |
| Only Hitchcock film to win Best Picture | 39 |
| Only Hitchcock film to get a Best Picture Oscar | 47 |
| Only head coach in six Super Bowls | 34 |
| Only God can make one, according to Kilmer | 42 |
| Only form that carbohydrates take? | 34 |
| Only five-time U.S. Horse of the Year | 37 |
| Only female character in a classic 1926 book | 44 |
| Only female Argonaut, per some sources | 38 |
| Only ex-wife of a U.S. president | 32 |
| Only Englishman to head the Vatican | 35 |
| Only Englishman to become pope (1154) | 37 |
| Only Englishman named a Dr. of the Church | 41 |
| Only Englishman buried in Arlington | 35 |
| Only Dolphin quarterback to win a Super Bowl | 44 |
| Only defenseman to lead the NHL in scoring | 42 |
| Only deer in which both sexes have antlers | 42 |
| Only crime defined in the Constitution | 38 |
| Only country without a rectangular flag | 39 |
| Only country with a non-rectangular flag | 40 |
| Only common English word from the Finnish | 41 |
| Only Chief Justice to have a state funeral | 42 |
| Only cardinal point not in a U.S. state name | 44 |
| Only Canadian PM with message on the moon | 41 |
| Only Canadian major league team, on scoreboards | 47 |
| Only brother not in any Marx Brothers films | 43 |
| Only British prime minister of Jewish birth | 43 |
| Only black child in "South Park" | 42 |
| Only bird with nostrils on the tip of its beak | 46 |
| Only Bible book that doesn't mention God | 44 |
| Only Belarus city with an underground metro | 43 |
| Only beardless one of the Seven Dwarfs | 38 |
| Only Beach Boys #1 hit after 1966 | 33 |
| Only astrological sign with an inanimate symbol | 47 |
| Only asteroid visible with the naked eye | 40 |
| Only amount that satisfies the greedy | 37 |
| Only American with more homers than Ruth | 40 |
| Only American star of "Doctor Zhivago" | 48 |
| Only album attributed to Paul and Linda McCartney | 49 |
| Only African-American male to win Wimbledon | 43 |
| Only about 10 percent of it is visible | 38 |
| Only able to think in the short term | 36 |
| Only 20th-century prez without a coll. degree | 45 |
| Only "Winnie the Pooh" human | 38 |
| Online tip jar (just sayin') | 32 |
| Online stock picker's option | 32 |
| Online status update limited to 140 characters | 46 |
| Online spender's convenience | 32 |
| Online site where users may write and edit texts | 48 |
| Online shopper's expenditure | 32 |
| Online service with a butterfly logo | 36 |
| Online request to come to a party | 33 |
| Online protocol for remote log-in | 33 |
| Online program such as Evernote or Dropbox | 42 |
| Online prefix for "cat" | 33 |
| Online portal since Windows 95 was launched | 43 |
| Online offering of big-box retailers | 36 |
| Online multiplayer gaming service | 33 |
| Online mortgage calculator, e.g. | 32 |
| Online marketplace for handmade goods | 37 |
| Online magazine with a "Runway" section | 49 |
| Online journalist's retreat? | 32 |
| Online journal's latest young participants? | 47 |
| Online IRS document submission system, literally? | 49 |
| Online health information source | 32 |
| Online handmade crafts marketplace | 34 |
| Online giant whose name is shouted in ads | 41 |