| Countries by Number of Books Published | 0 | - | 4.95 | 64,842 |
| All Disney Animated Movies | 0 | - | 4.85 | 405,342 |
| Guess These Badly Described Films | 0 | - | 4.88 | 145,301 |
| Battle to Country | 0 | - | 4.92 | 36,830 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 293,077 |
| Star Wars Quotes | 0 | - | 4.84 | 160,247 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.91 | 35,356 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 160,180 |
| English Monarchs Quiz | 0 | - | 4.91 | 455,066 |
| Disney Animated Movie Trivia | 0 | - | 4.54 | 66,737 |
| Pixar Movies Quiz | 0 | - | 4.84 | 382,207 |
| Movies by Year, 1990–2009 | 0 | - | 4.19 | 63,800 |
| Hollywood Screen Legends Quiz | 0 | - | 4.04 | 33,857 |
| Name the 7 Dwarfs | 0 | - | 4.57 | 347,753 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 211,370 |
| Countries in World War I | 0 | - | 4.88 | 212,365 |
| Movie Posters by Description | 0 | - | 4.58 | 57,046 |
| Mulan - "I'll Make A Man Out Of You" Lyrics | 0 | - | 4.45 | 32,963 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,759 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 40,640 |
| Countries by Founding Story | 0 | - | 4.93 | 55,966 |
| Independence from Whom | 0 | - | 4.99 | 189,587 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,787 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,942 |
| Movies by Year, 1970–1989 | 0 | - | 4.33 | 24,218 |
| Monster Movies | 0 | - | 4.51 | 29,644 |
| WWII Movies | 0 | - | 4.19 | 25,880 |
| Disney Heroines | 0 | - | 4.14 | 49,623 |
| Batfacts: The Batman Quiz | 0 | - | 4.48 | 53,987 |
| Countries of the World in 1900 | 0 | - | 4.88 | 68,647 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 173,842 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 130,959 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 146,587 |
| Communist Countries in History | 0 | - | 4.65 | 461,718 |
| Historical City to Country | 0 | - | 4.82 | 73,135 |
| Countries by Former Name | 0 | - | 4.99 | 115,672 |
| Cities by Former Name | 0 | - | 4.84 | 84,260 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 229,510 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 235,074 |
| Countries with NO Military | 0 | - | 4.97 | 50,983 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 128,475 |
| NATO Countries Quiz | 0 | - | 4.98 | 234,263 |
| EU Countries Quiz | 0 | - | 4.99 | 231,591 |
| Top Five Countries by Religion | 0 | - | 4.91 | 146,465 |
| Books of the Protestant Bible | 0 | - | 4.87 | 182,608 |
| Movies by Plot Hole | 0 | - | 4.34 | 56,297 |
| Movies General Knowledge #1 | 0 | - | 4.08 | 42,774 |
| Movie Sequels Quiz | 0 | - | 4.10 | 65,923 |
| Movie Series by Partial Titles | 0 | - | 4.32 | 70,226 |
| Movies by Spoiler | 0 | - | 4.08 | 46,142 |
| Biopics Quiz | 0 | - | 4.10 | 38,321 |
| Movie Newspaper Headlines | 0 | - | 4.40 | 32,558 |
| Major Hollywood Film Studios | 0 | - | 4.41 | 26,750 |
| Sci-Fi Movie Quotes Quiz | 0 | - | 4.32 | 35,526 |
| Highest Grossing Movies - Inflation Adjusted | 0 | - | 4.46 | 75,699 |
| Highest Grossing Movies | 0 | - | 4.46 | 113,026 |
| Movies that have Won the Most Oscars | 0 | - | 4.45 | 52,735 |
| Every Oscar-Nominated Actress | 0 | - | 4.42 | 62,943 |
| Oscar Best Pictures Quiz | 0 | - | 4.57 | 278,798 |
| Movies by Opening Scene | 0 | - | 4.42 | 95,891 |
| Famous Movie Scenes #2 | 0 | - | 4.48 | 59,251 |
| "A Whole New World" Lyrics | 0 | - | 4.25 | 61,806 |
| History of The Netherlands | 0 | - | 4.43 | 15,985 |
| Countries in World War II | 0 | - | 4.58 | 826,975 |
| WWII Geography | 0 | - | 4.79 | 100,889 |
| Countries that Have Won the Most Battles | 0 | - | 4.05 | 36,644 |
| 7 Deadly Sins Quiz | 0 | - | 4.86 | 349,324 |
| Majority Muslim Countries | 0 | - | 4.97 | 317,818 |
| Science Fiction Movie Co-Stars | 0 | - | 4.12 | 9,300 |
| A to Z: Movie Quotes | 0 | - | 4.29 | 31,961 |
| Disney's "The Lion King" | 0 | - | 4.17 | 77,545 |
| Disney's Frozen - Let It Go Lyrics | 0 | - | 4.43 | 63,253 |
| Disney Animals | 0 | - | 4.28 | 226,411 |
| Disney Feature Films by Characters | 0 | - | 4.42 | 268,740 |
| Superhero Decoder | 0 | - | 4.37 | 50,672 |
| Marvel Superheroes | 0 | - | 4.34 | 274,260 |
| Marvel Comics Movie Franchises | 0 | - | 4.19 | 91,339 |
| Former Flags | 0 | - | 4.97 | 82,956 |
| Important Cities in WWII | 0 | - | 4.46 | 84,907 |
| Warsaw Pact Countries | 0 | - | 4.83 | 80,950 |
| Countries of Europe in 1444 | 0 | - | 4.93 | 88,798 |
| Countries of the World in 1444 | 0 | - | 4.98 | 51,055 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.81 | 50,592 |
| Countries of Europe before World War II with a Map | 0 | - | 4.94 | 41,406 |
| Houses of British Monarchs | 0 | - | 4.49 | 52,934 |
| Countries Settled by Vikings | 0 | - | 4.93 | 113,103 |
| Countries with the Most Tanks | 0 | - | 4.88 | 76,809 |
| Coldest World Capitals | 0 | - | 4.96 | 128,805 |
| World Currency Quiz | 0 | - | 4.92 | 251,473 |
| Countries with the Most Millionaires | 0 | - | 4.85 | 86,402 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 42,781 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 67,554 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 119,834 |
| Countries with the Most Christians | 0 | - | 4.93 | 124,625 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 74,870 |
| Buddhist Countries | 0 | - | 4.97 | 132,461 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,017,655 |
| Honest Movie Titles | 0 | - | 3.14 | 35,505 |
| Justice League Team - Movie Edition | 0 | - | 4.26 | 10,239 |
| Old Movies by Picture | 0 | - | 4.51 | 21,979 |
| Classic Movies by Movie Posters | 0 | - | 4.43 | 21,719 |
| 2000s Movie Trivia #1 | 0 | - | 4.47 | 53,615 |
| Movie Professions Quiz #1 | 0 | - | 3.67 | 37,117 |
| Movies Based on a True Story #1 | 0 | - | 4.14 | 26,489 |
| Movies Based on a True Story #2 | 0 | - | 4.25 | 23,937 |
| Disaster Movies | 0 | - | 4.32 | 11,756 |
| Road Trip Movies | 0 | - | 4.15 | 6,580 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 33,173 |
| Musicians in Movies | 0 | - | 4.14 | 41,941 |
| Voice Actors Quiz | 0 | - | 4.33 | 38,068 |
| Action Movie Stars Quiz | 0 | - | 4.12 | 33,936 |
| Oscar Best Supporting Actors | 0 | - | 4.43 | 46,558 |
| Oscar Best Actors | 0 | - | 4.54 | 217,854 |
| Oscar Best Actresses | 0 | - | 4.69 | 168,624 |
| Greatest Hollywood Actresses by Oscar Awards | 0 | - | 4.30 | 44,948 |
| Greatest Hollywood Actors by Oscar Awards | 0 | - | 4.40 | 41,770 |
| Oscar Best Directors Quiz | 0 | - | 4.58 | 49,291 |
| Who Directed That Movie #4 | 0 | - | 4.47 | 9,057 |
| Christopher Nolan Movies | 0 | - | 4.51 | 39,880 |
| Quentin Tarantino Movies Quiz | 0 | - | 4.44 | 47,420 |
| Oscar Actor to Movie | 0 | - | 4.37 | 36,483 |
| Every Oscar-Nominated Actor | 0 | - | 4.34 | 76,249 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.90 | 51,335 |
| Disney's "The Little Mermaid" | 0 | - | 4.40 | 12,696 |
| Star Wars Characters Screen Time by Movie | 0 | - | 4.55 | 22,231 |
| Category Elimination - Disney Animated Movies | 0 | - | 4.10 | 43,919 |
| Batman Actors Quiz | 0 | - | 4.25 | 45,453 |
| Movies by Year, 2010–present | 0 | - | 4.23 | 64,500 |
| Famous Movie Scenes #3 | 0 | - | 4.11 | 68,033 |
| Movies by Death #1 | 0 | - | 4.39 | 80,220 |
| Famous Movie Scenes #1 | 0 | - | 4.32 | 79,126 |
| Superhero Alter Egos | 0 | - | 4.27 | 147,077 |
| Sidekicks Quiz | 0 | - | 4.22 | 104,907 |
| Top 50 Comic Book Heroes | 0 | - | 3.90 | 73,396 |
| Supervillain Alter Egos Quiz | 0 | - | 4.07 | 7,744 |
| Avengers Team Members | 0 | - | 4.06 | 71,619 |
| Marvel Cinematic Universe - Actor to Character | 0 | - | 4.12 | 102,326 |
| X-Men Mutants | 0 | - | 4.06 | 43,242 |
| The Spiderman Quiz | 0 | - | 4.31 | 63,880 |
| Movie Quotes Multiple Choice #1 | 0 | - | 4.46 | 31,759 |
| Former Countries | 0 | - | 4.72 | 126,091 |
| People Born on Islands | 0 | - | 4.41 | 40,476 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,479 |
| Damaged and Destroyed Cities | 0 | - | 4.41 | 42,467 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 70,275 |
| Ancient Greece A-Z | 0 | - | 4.66 | 21,164 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 27,188 |
| City Where It Happened #2 | 0 | - | 4.43 | 50,880 |
| City Where It Happened #3 | 0 | - | 4.53 | 37,665 |
| Countries by Independence Day | 0 | - | 4.63 | 44,760 |
| Ancient City to Country | 0 | - | 4.75 | 102,279 |
| Former Countries by Capital | 0 | - | 4.43 | 105,017 |
| City-States | 0 | - | 4.54 | 35,250 |
| Guerrillas by Country | 0 | - | 4.45 | 38,940 |
| People on Money - United States | 0 | - | 4.31 | 62,002 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.18 | 41,743 |
| The American Civil War | 0 | - | 4.74 | 49,522 |
| Military History Vocabulary | 0 | - | 4.92 | 61,061 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 62,313 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 135,983 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 64,636 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 51,273 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 60,416 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 47,651 |
| British History A-Z | 0 | - | 4.47 | 40,189 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.92 | 40,993 |
| Books by Country Quiz | 0 | - | 4.28 | 31,403 |
| Most Powerful Countries Bordering Each Other | 0 | - | 4.85 | 50,566 |
| Monarchies of Europe | 0 | - | 4.89 | 88,298 |
| Monarchies of Asia | 0 | - | 4.95 | 54,856 |
| Capital Cities with the Least Precipitation | 0 | - | 4.90 | 27,654 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 285,412 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 179,659 |
| Countries with the Most Exports | 0 | - | 4.96 | 140,739 |
| Top Crude Oil Producing Countries | 0 | - | 4.90 | 174,552 |
| Countries by Oil Consumption | 0 | - | 4.96 | 112,765 |
| Richest Island Countries | 0 | - | 4.86 | 89,694 |
| Largest Economies in 2050 | 0 | - | 4.89 | 101,551 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 89,543 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 242,439 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 91,679 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.86 | 68,156 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 224,398 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 100,449 |
| Catholic Countries Quiz | 0 | - | 4.82 | 200,169 |
| Countries with the Most Catholics | 0 | - | 4.91 | 95,791 |
| Catholic Countries in Europe | 0 | - | 4.86 | 85,479 |
| Orthodox Countries | 0 | - | 4.91 | 119,555 |
| Countries with the Most Muslims | 0 | - | 4.95 | 147,462 |
| Name the Constellations - With a Map | 0 | - | 4.90 | 31,912 |
| Divided World City Name Puzzle #1 | 0 | - | 4.90 | 41,059 |
| Countries that Start with A | 0 | - | 4.98 | 1,977,897 |
| Countries that Start with B | 0 | - | 4.95 | 2,116,971 |
| Countries that Start with C | 0 | - | 4.96 | 1,675,735 |
| Countries that Start with D | 0 | - | 4.96 | 611,780 |
| Countries that Start with E | 0 | - | 4.95 | 1,255,321 |
| Countries that Start with G | 0 | - | 4.97 | 1,375,333 |
| Countries that Start with H | 0 | - | 4.96 | 521,942 |
| Countries that Start with I | 0 | - | 4.92 | 1,182,956 |
| Countries that Start with J | 0 | - | 4.98 | 524,184 |
