| Who Did That 1970s Song #1 | 0 | - | 4.48 | 89,249 |
| Who Did That 1970s Song #2 | 0 | - | 4.25 | 53,955 |
| I Will Survive Lyrics | 0 | - | 4.25 | 37,790 |
| #1 Hits of the 1970s | 0 | - | 4.44 | 85,515 |
| 1970s Albums | 0 | - | 4.38 | 27,810 |
| Who Did That 1960s Song #2 | 0 | - | 4.46 | 41,239 |
| 1970s Music Trivia | 0 | - | 4.29 | 31,842 |
| Who Did That 1960s Song #1 | 0 | - | 4.38 | 47,845 |
| Woodstock Performers | 0 | - | 4.55 | 10,698 |
| Movies by Year, 1950–1969 | 0 | - | 4.48 | 22,143 |
| #1 Hits of the 1960s | 0 | - | 4.59 | 43,079 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,350 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 51,045 |
| 1970s Decade Quiz | 0 | - | 4.23 | 61,102 |
| Fads of the 1970s | 0 | - | 4.19 | 28,459 |
| 1970s Celebrities | 0 | - | 4.03 | 13,798 |
| People Portrayed by Andy Warhol | 0 | - | 4.35 | 38,323 |
| 1970s American TV Trivia | 0 | - | 4.12 | 12,502 |
| 1980s Albums | 0 | - | 4.41 | 46,793 |
| Who Did That 1980s Song #3 | 0 | - | 4.58 | 55,033 |
| Highest Grossing 1980s Movies | 0 | - | 4.47 | 65,890 |
| Highest Grossing 1990s Movies | 0 | - | 4.50 | 109,085 |
| 1970s Movie Trivia | 0 | - | 4.28 | 21,868 |
| Highest Grossing 1970s Movies | 0 | - | 4.30 | 29,608 |
| 1960s Music Trivia | 0 | - | 4.36 | 23,809 |
| 1960s Catchphrases | 0 | - | 4.14 | 105,173 |
| Who Did That 1980s Song #2 | 0 | - | 4.31 | 75,898 |
| Who Did That 1980s Song #1 | 0 | - | 4.37 | 171,092 |
| #1 Hits of the 1980s | 0 | - | 4.87 | 149,718 |
| Africa - Toto Lyrics | 0 | - | 4.58 | 7,412 |
| Who Did That 1990s Song #2 | 0 | - | 4.28 | 61,421 |
| Who Did That 1990s Song #1 | 0 | - | 4.17 | 76,563 |
| Who Did That 1990s Song #3 | 0 | - | 4.08 | 56,280 |
| Top Box Office Stars of the 1990s | 0 | - | 4.30 | 31,806 |
| Movies by Year, 1990–2009 | 0 | - | 4.21 | 66,941 |
| 1960s American TV Trivia | 0 | - | 4.05 | 11,690 |
| "We Are the World" Solo Musicians | 0 | - | 4.17 | 11,453 |
| 1980s Movies by Plot | 0 | - | 4.25 | 29,120 |
| 1990s One Hit Wonders | 0 | - | 4.00 | 38,038 |
| 1990s Movies by Plot | 0 | - | 4.13 | 27,886 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,398 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,259 |
| Countries by Founding Story | 0 | - | 4.95 | 77,962 |
| Independence from Whom | 0 | - | 4.99 | 213,595 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,789 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,970 |
| 2017 News Stories - Name the Country | 0 | - | 4.46 | 28,655 |
| 2018 News Stories - Name the Country | 0 | - | 4.42 | 23,955 |
| 1980s Movie Trivia #1 | 0 | - | 4.58 | 31,557 |
| Who Did That Power Ballad? | 0 | - | 3.86 | 38,225 |
| Hair Band Songs Quiz | 0 | - | 4.22 | 28,977 |
| Brat Pack Actors | 0 | - | 4.32 | 7,175 |
| 1990s Movie Trivia #1 | 0 | - | 4.38 | 53,203 |
| 1990s Movie Trivia #2 | 0 | - | 4.40 | 42,023 |
| Ice Ice Baby Lyrics | 0 | - | 3.48 | 36,407 |
| 1990s Albums | 0 | - | 4.23 | 25,707 |
| Girls of Mambo Number 5 | 0 | - | 4.38 | 19,565 |
| Things that Alanis Morissette Finds "Ironic" | 0 | - | 4.26 | 22,362 |
| 2000s Movie Trivia #1 | 0 | - | 4.36 | 73,556 |
| 2010s Movie Trivia | 0 | - | 4.33 | 51,299 |
| Top 10 Oldest African Countries | 0 | - | 4.87 | 28,338 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,329 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,264 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,652 |
| Recently Independent Countries | 0 | - | 4.98 | 160,601 |
| Historical City to Country | 0 | - | 4.85 | 79,130 |
| Countries by Former Name | 0 | - | 4.99 | 126,054 |
| Cities by Former Name | 0 | - | 4.83 | 92,231 |
| 2016 News Stories - Name the Country | 0 | - | 4.45 | 23,496 |
| Movies by Year, 1970–1989 | 0 | - | 4.38 | 25,492 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,343 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,829 |
| All Modern-Day Countries Ever Controlled by the British | 0 | - | 4.81 | 50,316 |
| Fads of the 1960s | 0 | - | 4.00 | 11,527 |
| Rat Pack Members | 0 | - | 4.03 | 5,207 |
| Highest Grossing 1960s Movies | 0 | - | 4.45 | 22,865 |
| Fads of the 1980s | 0 | - | 4.06 | 36,968 |
| 1980s One Hit Wonders | 0 | - | 3.89 | 26,502 |
| Don't Stop Believin' Lyrics | 0 | - | 4.47 | 224,840 |
| Back to the Future Trivia | 0 | - | 4.59 | 34,728 |
| Fads of the 1990s | 0 | - | 4.03 | 36,664 |
| Former Flags | 0 | - | 4.97 | 108,916 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,663 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,546 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 54,009 |
| Warsaw Pact Countries | 0 | - | 4.83 | 85,029 |
| U.S. History Timeline Quiz | 0 | - | 4.96 | 57,422 |
| MLB Baseball by Year, 1960–1989 | 0 | - | 4.09 | 18,721 |
| NFL Football by Year, 1967–1999 | 0 | - | 4.34 | 25,514 |
| MLB Baseball by Year, 1990–present | 0 | - | 4.02 | 15,082 |
| Battle to Country | 0 | - | 4.91 | 54,181 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,875 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,906 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 58,039 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,357 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,677 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,316 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,137 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,104 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,379 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,806 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,743 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 54,415 |
| Countries of the World in 1882 with a Map | 0 | - | 4.89 | 45,330 |
| Countries of the World in 1789 with a Map | 0 | - | 4.95 | 67,683 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,239 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 46,025 |
| 1960s Movie Trivia | 0 | - | 4.26 | 18,443 |
| 1980s Movie Trivia #2 | 0 | - | 4.28 | 20,854 |
| Ghostbusters Quiz | 0 | - | 3.83 | 6,001 |
| 1990s Catchphrases | 0 | - | 4.22 | 176,639 |
| 2000s Movie Trivia #2 | 0 | - | 4.19 | 28,773 |
| 2000s Movie Co-Stars | 0 | - | 4.33 | 40,101 |
| Former Countries | 0 | - | 4.77 | 134,364 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,851 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,872 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,777 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,164 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,370 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,704 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,733,918 |
| WWII Geography | 0 | - | 4.81 | 121,578 |
| Countries by Independence Day | 0 | - | 4.62 | 52,891 |
| Ancient City to Country | 0 | - | 4.72 | 108,427 |
| Former Countries by Capital | 0 | - | 4.45 | 127,931 |
| City-States | 0 | - | 4.53 | 37,447 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,115 |
| 2019 News Stories - Name the Country | 0 | - | 4.21 | 18,531 |
| 2020 News Stories - Name the Country | 0 | - | 4.35 | 30,475 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,581 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,876 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,092 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.81 | 55,341 |
| All Modern-Day Countries Ever Controlled by Greeks | 0 | - | 4.97 | 54,835 |
| All Modern-Day Countries Ever Controlled by the Netherlands | 0 | - | 4.95 | 53,981 |
| All Modern-Day Countries Ever Controlled by Portugal | 0 | - | 4.93 | 44,700 |
| Name the English Monarchs | 0 | - | 4.91 | 507,797 |
| 1980s Catchphrases | 0 | - | 3.96 | 193,440 |
| 1980s American TV Trivia | 0 | - | 4.14 | 13,582 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,097 |
| 1980s Movie Taglines | 0 | - | 4.22 | 42,849 |
| 1980s Movie Quotes | 0 | - | 4.08 | 42,743 |
| #1 Hits of the 1990s | 0 | - | 4.38 | 100,992 |
| 1990s Movie Taglines | 0 | - | 4.21 | 46,142 |
| 1990s Movie Quotes | 0 | - | 4.36 | 107,435 |
| Recent Movie Taglines Quiz | 0 | - | 4.30 | 54,313 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,312 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,987 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,162 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,868 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,180 |
| People Born on Islands | 0 | - | 4.39 | 53,104 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,860 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,298 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,811 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,851 |
| Prime Ministers of the UK | 0 | - | 4.95 | 443,523 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 429,037 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,812 |
| The Trojan War | 0 | - | 4.83 | 40,133 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,393 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,173 |
| Roman Provinces on a Map | 0 | - | 4.53 | 37,446 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,891 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 86,866 |
| Countries in World War I | 0 | - | 4.88 | 229,546 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,490 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,983 |
| History of Russia Quiz | 0 | - | 4.47 | 32,033 |
| Famous Immigrants and Exiles | 0 | - | 4.46 | 23,803 |
| History of Italy | 0 | - | 4.55 | 32,204 |
| Guerrillas by Country | 0 | - | 4.40 | 41,265 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,748 |
| Roman Emperors | 0 | - | 4.95 | 121,559 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 43,414 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,504 |
| Name that Greek Letter | 0 | - | 4.93 | 325,459 |
| Ancient Greek Words | 0 | - | 4.93 | 112,754 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.77 | 45,938 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.78 | 33,796 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 58,667 |
| Livin' on a Prayer Lyrics | 0 | - | 4.28 | 96,453 |
| Michael Jackson Complete Song Discography | 0 | - | 4.56 | 5,864 |
| 1980s Movie Co-Stars | 0 | - | 4.17 | 15,886 |
| O.J. Simpson - Trial of the Century | 0 | - | 3.94 | 7,181 |
| 1990s American TV Trivia | 0 | - | 3.72 | 12,208 |
| 1990s Movie Co-Stars | 0 | - | 3.97 | 33,741 |
| 2000s Movie Quotes Quiz | 0 | - | 3.98 | 75,559 |
| 2000s Oscar Best Actress Nominees | 0 | - | 4.29 | 13,666 |
| 2000s Movies by Plot | 0 | - | 3.76 | 15,063 |
| 2010s Movie Co-Stars | 0 | - | 3.88 | 35,889 |
| 2010s Movies by Plot | 0 | - | 3.85 | 23,093 |
| Name Every Beatles Song | 0 | - | 4.97 | 239,000 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 293,085 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,628 |
| Geography of the French Empire | 0 | - | 4.45 | 27,245 |
| History of India | 0 | - | 4.62 | 21,535 |
| History of Mexico | 0 | - | 4.52 | 15,385 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| History of South Africa | 0 | - | 4.60 | 17,788 |
