| Countries by Number of Books Published | 0 | - | 4.95 | 72,216 |
| Guess These Badly Described Films | 0 | - | 4.85 | 163,338 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 335,827 |
| Battle to Country | 0 | - | 4.91 | 52,958 |
| All Disney Animated Movies | 0 | - | 4.78 | 447,213 |
| Star Wars Quotes | 0 | - | 4.83 | 178,590 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.84 | 51,255 |
| WWII Geography | 0 | - | 4.81 | 119,920 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,844 |
| Name the English Monarchs | 0 | - | 4.92 | 500,284 |
| Disney Animated Movie Trivia | 0 | - | 4.55 | 74,755 |
| Pixar Movies Quiz | 0 | - | 4.87 | 431,186 |
| Movies by Year, 1990–2009 | 0 | - | 4.21 | 66,618 |
| Name the 7 Dwarfs | 0 | - | 4.55 | 362,749 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,343 |
| Countries in World War I | 0 | - | 4.88 | 227,488 |
| Movie Posters by Description | 0 | - | 4.61 | 64,321 |
| Movie Newspaper Headlines | 0 | - | 4.42 | 35,793 |
| Mulan - "I'll Make A Man Out Of You" Lyrics | 0 | - | 4.61 | 39,133 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,650 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,453 |
| Countries by Founding Story | 0 | - | 4.95 | 76,908 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 85,405 |
| Independence from Whom | 0 | - | 4.99 | 210,879 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,400 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,250 |
| Movies by Year, 1970–1989 | 0 | - | 4.38 | 25,393 |
| Monster Movies | 0 | - | 4.53 | 31,258 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,035 |
| Disney Heroines | 0 | - | 4.15 | 52,447 |
| Batfacts: The Batman Quiz | 0 | - | 4.49 | 60,594 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,773 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,211 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,212 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,903 |
| Recently Independent Countries | 0 | - | 4.98 | 158,422 |
| Communist Countries in History | 0 | - | 4.63 | 494,035 |
| Historical City to Country | 0 | - | 4.84 | 78,339 |
| Countries by Former Name | 0 | - | 4.99 | 124,711 |
| Cities by Former Name | 0 | - | 4.84 | 91,291 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 40,873 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,130 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,525 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,601 |
| Countries with NO Military | 0 | - | 4.97 | 61,669 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,517 |
| NATO Countries | 0 | - | 4.98 | 278,269 |
| EU Countries Quiz | 0 | - | 4.99 | 271,820 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,149 |
| Books of the Protestant Bible | 0 | - | 4.89 | 208,828 |
| Movies by Plot Hole | 0 | - | 4.34 | 66,014 |
| Movies General Knowledge #1 | 0 | - | 4.05 | 49,578 |
| Movie Sequels | 0 | - | 4.20 | 82,651 |
| Movie Series by Partial Titles | 0 | - | 4.33 | 75,817 |
| Movies by Spoiler | 0 | - | 4.09 | 51,599 |
| Movies Based on a True Story #1 | 0 | - | 4.19 | 43,120 |
| Biopics Quiz | 0 | - | 4.13 | 41,434 |
| Movies Based on a True Story #2 | 0 | - | 4.31 | 39,754 |
| Major Hollywood Film Studios | 0 | - | 4.43 | 29,417 |
| Sci-Fi Movie Quotes | 0 | - | 4.31 | 36,923 |
| Highest Grossing Movies - Inflation Adjusted | 0 | - | 4.47 | 84,508 |
| Highest Grossing Movies | 0 | - | 4.48 | 123,402 |
| Movies that have Won the Most Oscars | 0 | - | 4.49 | 58,993 |
| Every Oscar-Nominated Actress | 0 | - | 4.44 | 72,715 |
| Oscar Best Pictures | 0 | - | 4.52 | 309,264 |
| Disney's "The Little Mermaid" | 0 | - | 4.41 | 13,756 |
| Movies by Opening Scene | 0 | - | 4.42 | 102,820 |
| Famous Movie Scenes #2 | 0 | - | 4.48 | 62,534 |
| "A Whole New World" Lyrics | 0 | - | 4.31 | 67,462 |
| History of The Netherlands | 0 | - | 4.46 | 17,371 |
| Countries in World War II | 0 | - | 4.54 | 908,756 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,462 |
| Books by Country Quiz | 0 | - | 4.30 | 32,203 |
| 7 Deadly Sins | 0 | - | 4.88 | 397,912 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,064 |
| Science Fiction Movie Co-Stars | 0 | - | 4.12 | 9,792 |
| Movie Quotes A-Z #1 | 0 | - | 4.31 | 40,870 |
| Disney's "The Lion King" | 0 | - | 4.17 | 79,817 |
| Disney's Frozen - Let It Go Lyrics | 0 | - | 4.45 | 72,664 |
| Disney Animals | 0 | - | 4.27 | 239,244 |
| Disney Feature Films by Characters | 0 | - | 4.42 | 276,936 |
| Superhero Decoder | 0 | - | 4.36 | 54,493 |
| Marvel Superheroes | 0 | - | 4.37 | 295,958 |
| Marvel Comics Movie Franchises | 0 | - | 4.29 | 115,596 |
| Former Flags | 0 | - | 4.97 | 107,216 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,774 |
| Important Cities in WWII | 0 | - | 4.42 | 93,221 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,380 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,217 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,914 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,150 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,698 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 52,824 |
| Countries of the World in 1882 with a Map | 0 | - | 4.89 | 44,030 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,694 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,483 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,125 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,820 |
| Coldest World Capitals | 0 | - | 4.95 | 133,229 |
| World Currency Quiz | 0 | - | 4.92 | 300,733 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,050 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,820 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,141 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,471 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,134 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,363 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,560 |
| Buddhist Countries | 0 | - | 4.96 | 143,452 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,094,098 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,844 |
| Honest Movie Titles | 0 | - | 3.00 | 37,350 |
| Old Movies by Picture | 0 | - | 4.51 | 24,979 |
| Movie Professions #1 | 0 | - | 3.64 | 38,750 |
| Movie Professions #2 | 0 | - | 3.60 | 32,781 |
| Hollywood Flops | 0 | - | 4.06 | 23,607 |
| Disaster Movies | 0 | - | 4.35 | 12,894 |
| Road Trip Movies | 0 | - | 4.18 | 7,282 |
| 6-Letter Movie Chain #3 | 0 | - | 4.43 | 36,192 |
| Musicians in Movies | 0 | - | 4.14 | 44,441 |
| Voice Actors | 0 | - | 4.34 | 39,506 |
| Action Movie Stars | 0 | - | 4.12 | 35,145 |
| Oscar Best Supporting Actors | 0 | - | 4.45 | 52,746 |
| Oscar Best Actors | 0 | - | 4.52 | 251,255 |
| Oscar Best Actresses | 0 | - | 4.61 | 185,322 |
| Greatest Hollywood Actresses by Oscar Awards | 0 | - | 4.32 | 46,313 |
| Greatest Hollywood Actors by Oscar Awards | 0 | - | 4.32 | 49,073 |
| Oscar Best Directors | 0 | - | 4.55 | 56,499 |
| Who Directed That Movie #1 | 0 | - | 4.40 | 32,719 |
| Christopher Nolan Movies | 0 | - | 4.47 | 49,582 |
| Quentin Tarantino Movies Quiz | 0 | - | 4.47 | 51,411 |
| Top Box Office Stars of the 2000s | 0 | - | 4.23 | 35,491 |
| Oscar Hosts | 0 | - | 4.22 | 32,308 |
| Oscar Actor to Movie | 0 | - | 4.34 | 38,650 |
| Every Oscar-Nominated Actor | 0 | - | 4.34 | 87,899 |
| Movie Title Antonyms #1 | 0 | - | 4.81 | 195,082 |
| Obfuscations of Movie Titles #1 | 0 | - | 4.93 | 61,891 |
| Star Wars Characters Screen Time by Movie | 0 | - | 4.56 | 28,665 |
| Category Elimination - Disney Animated Movies | 0 | - | 4.08 | 49,487 |
| Batman Actors Quiz | 0 | - | 4.27 | 47,927 |
| Movies by Year, 2010–present | 0 | - | 4.19 | 78,245 |
| Famous Movie Scenes #3 | 0 | - | 4.13 | 70,897 |
| Movies by Death #1 | 0 | - | 4.40 | 97,080 |
| Famous Movie Scenes #1 | 0 | - | 4.33 | 82,309 |
| Superhero Alter Egos | 0 | - | 4.29 | 164,409 |
| Who Did These Sidekicks Work With? | 0 | - | 4.25 | 109,966 |
| Top 50 Comic Book Heroes | 0 | - | 3.95 | 75,561 |
| Supervillain Alter Egos Quiz | 0 | - | 4.14 | 8,673 |
| Avengers Team Members | 0 | - | 4.07 | 77,354 |
| Marvel Cinematic Universe - Actor to Character | 0 | - | 4.11 | 112,878 |
| X-Men Mutants | 0 | - | 4.05 | 47,056 |
| The Spiderman Quiz | 0 | - | 4.31 | 72,430 |
| Movie Quotes Multiple Choice #1 | 0 | - | 4.46 | 33,607 |
| Former Countries | 0 | - | 4.75 | 133,002 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,302 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,590 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,446 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,085 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,049 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,332 |
| Countries by Independence Day | 0 | - | 4.61 | 52,680 |
| Ancient City to Country | 0 | - | 4.70 | 107,813 |
| Former Countries by Capital | 0 | - | 4.45 | 127,265 |
| City-States | 0 | - | 4.53 | 37,193 |
| People on Money - United States | 0 | - | 4.31 | 63,271 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,841 |
| The American Civil War | 0 | - | 4.62 | 52,295 |
| Military History Vocabulary | 0 | - | 4.91 | 66,885 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,489 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,589 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 75,899 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,015 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,519 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,411 |
| British History A-Z #1 | 0 | - | 4.45 | 46,317 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 45,458 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,639 |
| Monarchies of Europe | 0 | - | 4.90 | 97,730 |
| Monarchies of Asia | 0 | - | 4.97 | 70,851 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,093 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,535 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,766 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,090 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,843 |
| Richest Island Countries | 0 | - | 4.84 | 100,015 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,018 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,915 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 268,801 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 103,737 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,126 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,896 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,152 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,697 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,637 |
| Orthodox Countries | 0 | - | 4.92 | 130,990 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,863 |
| The Sun Quiz | 0 | - | 4.93 | 34,355 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,798 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 86,984 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,375 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,689 |
