| #1 Hits of the 1980s | 0 | - | 4.87 | 149,701 |
| #1 Hits of the 1960s | 0 | - | 4.59 | 43,076 |
| Who Did That 1970s Song #1 | 0 | - | 4.48 | 89,240 |
| Who Did That 1970s Song #2 | 0 | - | 4.25 | 53,951 |
| I Will Survive Lyrics | 0 | - | 4.25 | 37,786 |
| #1 Hits of the 1990s | 0 | - | 4.38 | 100,979 |
| 1970s Albums | 0 | - | 4.38 | 27,809 |
| 1970s Music Trivia | 0 | - | 4.29 | 31,839 |
| Who Did That 1960s Song #2 | 0 | - | 4.46 | 41,230 |
| Who Did That 1960s Song #1 | 0 | - | 4.38 | 47,841 |
| Woodstock Performers | 0 | - | 4.55 | 10,696 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,345 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 51,037 |
| 1970s Decade Quiz | 0 | - | 4.23 | 61,088 |
| 1980s Movie Quotes | 0 | - | 4.08 | 42,742 |
| 1990s Movie Quotes | 0 | - | 4.36 | 107,433 |
| 1970s Celebrities | 0 | - | 4.03 | 13,798 |
| People Portrayed by Andy Warhol | 0 | - | 4.35 | 38,314 |
| Movies by Year, 1950–1969 | 0 | - | 4.48 | 22,142 |
| 1970s Movie Trivia | 0 | - | 4.28 | 21,863 |
| 1960s Catchphrases | 0 | - | 4.14 | 105,167 |
| 1960s Music Trivia | 0 | - | 4.36 | 23,809 |
| Fads of the 1970s | 0 | - | 4.19 | 28,458 |
| 1970s American TV Trivia | 0 | - | 4.12 | 12,501 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 194,128 |
| Movies by Year, 1990–2009 | 0 | - | 4.21 | 66,939 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,095 |
| 1980s Movie Taglines | 0 | - | 4.22 | 42,847 |
| 1990s Movie Taglines | 0 | - | 4.21 | 46,141 |
| #1 Hits of the 2000s | 0 | - | 4.30 | 203,379 |
| Highest Grossing 1970s Movies | 0 | - | 4.30 | 29,608 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,382 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,255 |
| Countries by Founding Story | 0 | - | 4.95 | 77,953 |
| Independence from Whom | 0 | - | 4.99 | 213,562 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,766 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,966 |
| 2017 News Stories - Name the Country | 0 | - | 4.46 | 28,652 |
| 2018 News Stories - Name the Country | 0 | - | 4.42 | 23,951 |
| Highest Grossing 1960s Movies | 0 | - | 4.45 | 22,862 |
| 1980s Movie Trivia #1 | 0 | - | 4.58 | 31,551 |
| 1980s Albums | 0 | - | 4.41 | 46,790 |
| Who Did That 1980s Song #3 | 0 | - | 4.58 | 55,026 |
| Highest Grossing 1980s Movies | 0 | - | 4.47 | 65,884 |
| 1990s Movie Trivia #1 | 0 | - | 4.38 | 53,196 |
| 1990s Movie Trivia #2 | 0 | - | 4.40 | 42,019 |
| Highest Grossing 1990s Movies | 0 | - | 4.50 | 109,074 |
| 2000s Movie Trivia #1 | 0 | - | 4.36 | 73,542 |
| 2000s Movie Quotes Quiz | 0 | - | 3.98 | 75,558 |
| 2010s Movie Trivia | 0 | - | 4.33 | 51,291 |
| Top 10 Oldest African Countries | 0 | - | 4.87 | 28,330 |
| Former Flags | 0 | - | 4.97 | 108,896 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,297 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,233 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,619 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,534 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,990 |
| Recently Independent Countries | 0 | - | 4.98 | 160,593 |
| Warsaw Pact Countries | 0 | - | 4.83 | 85,021 |
| Historical City to Country | 0 | - | 4.85 | 79,124 |
| Countries by Former Name | 0 | - | 4.99 | 126,046 |
| Cities by Former Name | 0 | - | 4.83 | 92,229 |
| 2016 News Stories - Name the Country | 0 | - | 4.45 | 23,494 |
| MLB Baseball by Year, 1960–1989 | 0 | - | 4.09 | 18,720 |
| NFL Football by Year, 1967–1999 | 0 | - | 4.34 | 25,513 |
| Movies by Year, 1970–1989 | 0 | - | 4.38 | 25,490 |
| MLB Baseball by Year, 1990–present | 0 | - | 4.02 | 15,082 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,852 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,896 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 58,027 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,334 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,821 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 54,403 |
| Countries of the World in 1882 with a Map | 0 | - | 4.89 | 45,312 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,224 |
| 1960s Movie Trivia | 0 | - | 4.26 | 18,443 |
| Rat Pack Members | 0 | - | 4.03 | 5,205 |
| 1980s Movie Trivia #2 | 0 | - | 4.28 | 20,854 |
| Who Did That 1980s Song #2 | 0 | - | 4.31 | 75,889 |
| Who Did That 1980s Song #1 | 0 | - | 4.37 | 171,076 |
| Don't Stop Believin' Lyrics | 0 | - | 4.47 | 224,828 |
| Africa - Toto Lyrics | 0 | - | 4.58 | 7,406 |
| Back to the Future Trivia | 0 | - | 4.59 | 34,725 |
| 1990s Catchphrases | 0 | - | 4.22 | 176,635 |
| Who Did That 1990s Song #2 | 0 | - | 4.28 | 61,409 |
| Who Did That 1990s Song #1 | 0 | - | 4.17 | 76,554 |
| Who Did That 1990s Song #3 | 0 | - | 4.08 | 56,273 |
| Top Box Office Stars of the 1990s | 0 | - | 4.30 | 31,805 |
| 2000s Catchphrases | 0 | - | 3.04 | 349,413 |
| 2000s Movie Trivia #2 | 0 | - | 4.19 | 28,767 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,765 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,138 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,653 |
| Prime Ministers of the UK | 0 | - | 4.95 | 443,454 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,733,347 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,484 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,696 |
| WWII Geography | 0 | - | 4.81 | 121,561 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,097 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,406 |
| Name that Greek Letter | 0 | - | 4.93 | 325,417 |
| 2019 News Stories - Name the Country | 0 | - | 4.21 | 18,530 |
| 2020 News Stories - Name the Country | 0 | - | 4.35 | 30,474 |
| Battle to Country | 0 | - | 4.91 | 54,169 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,347 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,574 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,858 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,080 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,654 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,281 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,110 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,094 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,372 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,795 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.81 | 55,332 |
| All Modern-Day Countries Ever Controlled by Greeks | 0 | - | 4.97 | 54,822 |
| All Modern-Day Countries Ever Controlled by the Seljuks | 0 | - | 4.92 | 28,742 |
| Name the English Monarchs | 0 | - | 4.91 | 507,713 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 62,706 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 46,019 |
| 1960s American TV Trivia | 0 | - | 4.05 | 11,689 |
| 1980s Catchphrases | 0 | - | 3.96 | 193,434 |
| G1 The Transformers Quiz | 0 | - | 4.60 | 22,598 |
| Who Did That Power Ballad? | 0 | - | 3.86 | 38,223 |
| Hair Band Songs Quiz | 0 | - | 4.22 | 28,973 |
| "We Are the World" Solo Musicians | 0 | - | 4.17 | 11,451 |
| Brat Pack Actors | 0 | - | 4.32 | 7,175 |
| 1980s Movies by Plot | 0 | - | 4.25 | 29,118 |
| Saved by the Bell Characters Quiz | 0 | - | 3.51 | 28,445 |
| 1990s One Hit Wonders | 0 | - | 4.00 | 38,037 |
| Ice Ice Baby Lyrics | 0 | - | 3.48 | 36,406 |
| 1990s Albums | 0 | - | 4.23 | 25,706 |
| Girls of Mambo Number 5 | 0 | - | 4.38 | 19,563 |
| Things that Alanis Morissette Finds "Ironic" | 0 | - | 4.26 | 22,362 |
| 1990s Movies by Plot | 0 | - | 4.13 | 27,881 |
| Recent Movie Taglines Quiz | 0 | - | 4.30 | 54,312 |
| 2000s Movie Co-Stars | 0 | - | 4.33 | 40,095 |
| Title in the Lyrics #2 - The Beatles | 0 | - | 4.57 | 94,405 |
| Countries with Four Letters - Shape Quiz | 0 | - | 4.97 | 102,076 |
| Random European Capital to Country | 0 | - | 4.98 | 192,435 |
| Random European Country to Capital | 0 | - | 4.93 | 166,136 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,157 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,634 |
| Random African Capital to Country | 0 | - | 4.97 | 101,555 |
| Random African Country to Capital | 0 | - | 4.94 | 71,935 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,422,531 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,562,835 |
| Former Countries | 0 | - | 4.77 | 134,355 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,311 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,978 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,157 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,867 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,178 |
| People Born on Islands | 0 | - | 4.39 | 53,100 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,855 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,846 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,869 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,297 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,808 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,367 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,700 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,841 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 429,020 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 384,020 |
| U.S. President Scramble | 0 | - | 4.40 | 117,598 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,750 |
| The Trojan War | 0 | - | 4.83 | 40,126 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,365 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 57,193 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,130 |
| Roman Provinces on a Map | 0 | - | 4.53 | 37,433 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,861 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 86,853 |
| Countries in World War I | 0 | - | 4.88 | 229,534 |
| Countries by Independence Day | 0 | - | 4.62 | 52,888 |
| Ancient City to Country | 0 | - | 4.72 | 108,424 |
| Former Countries by Capital | 0 | - | 4.45 | 127,921 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,485 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,980 |
| History of Russia Quiz | 0 | - | 4.47 | 32,033 |
| Famous Immigrants and Exiles | 0 | - | 4.46 | 23,799 |
| History of Italy | 0 | - | 4.55 | 32,200 |
| City-States | 0 | - | 4.53 | 37,446 |
| Guerrillas by Country | 0 | - | 4.40 | 41,264 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,735 |
| Roman Emperors | 0 | - | 4.95 | 121,525 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 43,410 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,692 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,662 |
| Ancient Greek Words | 0 | - | 4.93 | 112,741 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.77 | 45,934 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.78 | 33,792 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,686 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 58,652 |
| Fads of the 1960s | 0 | - | 4.00 | 11,527 |
| 1980s One Hit Wonders | 0 | - | 3.89 | 26,499 |
| Livin' on a Prayer Lyrics | 0 | - | 4.28 | 96,448 |
| Michael Jackson Complete Song Discography | 0 | - | 4.56 | 5,853 |
| 1980s Movie Co-Stars | 0 | - | 4.17 | 15,882 |
| O.J. Simpson - Trial of the Century | 0 | - | 3.94 | 7,181 |
