| Who Did That 1960s Song #2 | 0 | - | 4.46 | 41,230 |
| 1960s Catchphrases | 0 | - | 4.14 | 105,167 |
| Who Did That 1960s Song #1 | 0 | - | 4.38 | 47,841 |
| Woodstock Performers | 0 | - | 4.55 | 10,696 |
| Fads of the 1960s | 0 | - | 4.00 | 11,527 |
| 1960s American TV Trivia | 0 | - | 4.05 | 11,689 |
| Rat Pack Members | 0 | - | 4.03 | 5,205 |
| Highest Grossing 1960s Movies | 0 | - | 4.45 | 22,862 |
| Fads of the 1970s | 0 | - | 4.19 | 28,458 |
| Who Did That 1970s Song #1 | 0 | - | 4.48 | 89,240 |
| Highest Grossing 1980s Movies | 0 | - | 4.47 | 65,884 |
| Highest Grossing 1990s Movies | 0 | - | 4.50 | 109,074 |
| Name a Valid European Capital | 0 | - | 4.95 | 154,107 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,662 |
| Name a Valid Asian Country | 0 | - | 4.98 | 122,025 |
| Name a Valid African Country | 0 | - | 4.98 | 155,376 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,210 |
| 1960s Music Trivia | 0 | - | 4.36 | 23,809 |
| 1960s Movie Trivia | 0 | - | 4.26 | 18,443 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 492,643 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 716,796 |
| Movies by Year, 1950–1969 | 0 | - | 4.48 | 22,142 |
| Fads of the 1980s | 0 | - | 4.06 | 36,968 |
| Fads of the 1990s | 0 | - | 4.03 | 36,664 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,340 |
| #1 Hits of the 1960s | 0 | - | 4.59 | 43,076 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,181 |
| Who Did That 1970s Song #2 | 0 | - | 4.25 | 53,951 |
| I Will Survive Lyrics | 0 | - | 4.25 | 37,786 |
| Top Box Office Stars of the 1990s | 0 | - | 4.30 | 31,805 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,256 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,379 |
| Movies by Year, 1990–2009 | 0 | - | 4.21 | 66,939 |
| 1970s American TV Trivia | 0 | - | 4.12 | 12,501 |
| 1980s Movies by Plot | 0 | - | 4.25 | 29,118 |
| 1990s Movies by Plot | 0 | - | 4.13 | 27,881 |
| NFL Football Last Names | 0 | - | 4.43 | 172,185 |
| 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 |
| Political Figures by Last Name #1 | 0 | - | 4.56 | 68,865 |
| Independence from Whom | 0 | - | 4.99 | 213,562 |
| Political Movements by Country | 0 | - | 4.46 | 72,853 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,766 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,966 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,692 |
| 2017 News Stories - Name the Country | 0 | - | 4.46 | 28,652 |
| 2018 News Stories - Name the Country | 0 | - | 4.42 | 23,951 |
| 1970s Decade Quiz | 0 | - | 4.23 | 61,088 |
| 1970s Music Trivia | 0 | - | 4.29 | 31,839 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,345 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 51,037 |
| 1970s Albums | 0 | - | 4.38 | 27,809 |
| Highest Grossing 1970s Movies | 0 | - | 4.30 | 29,608 |
| 1980s Movie Trivia #1 | 0 | - | 4.58 | 31,551 |
| Brat Pack Actors | 0 | - | 4.32 | 7,175 |
| 1990s Movie Trivia #1 | 0 | - | 4.38 | 53,196 |
| 1990s Movie Trivia #2 | 0 | - | 4.40 | 42,019 |
| 2000s Movie Trivia #1 | 0 | - | 4.36 | 73,542 |
| 2010s Movie Trivia | 0 | - | 4.33 | 51,291 |
| World City Nicknames Quiz | 0 | - | 4.16 | 35,718 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,818 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 62,150 |
| 1960s Celebrities by Picture #1 | 0 | - | 4.27 | 70,854 |
| 1960s Celebrities by Picture #2 | 0 | - | 4.26 | 51,739 |
| Top 10 Oldest African Countries | 0 | - | 4.87 | 28,330 |
| 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 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,095 |
| Recently Independent Countries | 0 | - | 4.98 | 160,593 |
| Historical City to Country | 0 | - | 4.85 | 79,124 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,339 |
| Countries by Former Name | 0 | - | 4.99 | 126,045 |
| Cities by Former Name | 0 | - | 4.83 | 92,229 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,727 |
| 2016 News Stories - Name the Country | 0 | - | 4.45 | 23,494 |
| Movies by Year, 1970–1989 | 0 | - | 4.38 | 25,490 |
| 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 |
| All Modern-Day Countries Ever Controlled by the British | 0 | - | 4.81 | 50,305 |
| 1970s Celebrities | 0 | - | 4.03 | 13,798 |
| People Portrayed by Andy Warhol | 0 | - | 4.35 | 38,314 |
| Back to the Future Trivia | 0 | - | 4.59 | 34,725 |
| 2010s U.S. Pop Culture | 0 | - | 4.28 | 36,981 |
| Biblical Names Still Popular Today | 0 | - | 4.28 | 51,674 |
| NBA Basketball Nicknames Quiz #1 | 0 | - | 4.20 | 149,887 |
| NBA Basketball Nicknames #2 | 0 | - | 4.09 | 57,908 |
| Countries as U.S. First Names | 0 | - | 4.31 | 78,611 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 70,051 |
| Asian Last Names in the United States | 0 | - | 4.43 | 47,042 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,413 |
| NBA Players by Last Name | 0 | - | 4.30 | 85,570 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,224 |
| U.S. Celebrity Gossip by Year, 1991–2009 | 0 | - | 3.75 | 38,245 |
| Former Flags | 0 | - | 4.97 | 108,896 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,653 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,534 |
| Historic Orient Express Routes Map | 0 | - | 5.00 | 53,990 |
| Names of Generations | 0 | - | 4.09 | 45,630 |
| Warsaw Pact Countries | 0 | - | 4.83 | 85,021 |
| American History Quotes #1 | 0 | - | 4.37 | 96,267 |
| American History Quotes #2 | 0 | - | 4.38 | 41,546 |
| MLB Baseball by Year, 1960–1989 | 0 | - | 4.09 | 18,720 |
| NFL Football by Year, 1967–1999 | 0 | - | 4.34 | 25,513 |
| MLB Baseball by Year, 1990–present | 0 | - | 4.02 | 15,082 |
| Battle to Country | 0 | - | 4.91 | 54,169 |
| 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 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,347 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,654 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,280 |
| 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 | 72,093 |
| 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 the Seljuks | 0 | - | 4.92 | 28,742 |
| 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 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,191 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,224 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 46,019 |
| 1970s Movie Trivia | 0 | - | 4.28 | 21,863 |
| #1 Hits of the 1970s | 0 | - | 4.44 | 85,507 |
| 1980s Movie Trivia #2 | 0 | - | 4.28 | 20,854 |
| Ghostbusters Quiz | 0 | - | 3.83 | 6,000 |
| 1990s Catchphrases | 0 | - | 4.22 | 176,635 |
| 2000s Movie Trivia #2 | 0 | - | 4.19 | 28,767 |
| 2000s U.S. Pop Culture | 0 | - | 4.19 | 16,180 |
| 1990s U.S. Pop Culture | 0 | - | 4.05 | 11,374 |
| 1980s U.S. Pop Culture | 0 | - | 4.03 | 10,540 |
| 2000s Movie Co-Stars | 0 | - | 4.33 | 40,095 |
| Unusual NBA Names | 0 | - | 3.81 | 192,498 |
| Unusual NFL First Names | 0 | - | 3.60 | 47,837 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,555 |
| NFL Team Nicknames | 0 | - | 3.89 | 93,260 |
| Country Nicknames | 0 | - | 3.95 | 98,089 |
| Superhero Nicknames | 0 | - | 4.21 | 61,897 |
| Rappers Real Names | 0 | - | 4.09 | 72,530 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,810 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,769 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,370 |
| Name an Official Language A-Z | 0 | - | 4.91 | 177,251 |
| Name a City - Asian Countries | 0 | - | 4.36 | 19,722 |
| Former Countries | 0 | - | 4.77 | 134,355 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,846 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,869 |
| 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 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,367 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,700 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 25,197 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,733,343 |
| WWII Geography | 0 | - | 4.81 | 121,561 |
| 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 |
| City-States | 0 | - | 4.53 | 37,446 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,097 |
| 2019 News Stories - Name the Country | 0 | - | 4.21 | 18,530 |
| 2020 News Stories - Name the Country | 0 | - | 4.35 | 30,474 |
| 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 |
| 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 |
| Name the English Monarchs | 0 | - | 4.91 | 507,712 |
| 1980s Catchphrases | 0 | - | 3.96 | 193,434 |
| 1980s American TV Trivia | 0 | - | 4.14 | 13,580 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,095 |
| 1980s Movie Taglines | 0 | - | 4.22 | 42,847 |
| 1980s Movie Quotes | 0 | - | 4.08 | 42,742 |
| 1990s Movie Taglines | 0 | - | 4.21 | 46,141 |
| 1990s Movie Quotes | 0 | - | 4.36 | 107,433 |
| Fads of the 2000s | 0 | - | 3.68 | 61,444 |
| Recent Movie Taglines Quiz | 0 | - | 4.30 | 54,312 |
| Baseball Player Nicknames #1 | 0 | - | 4.05 | 29,592 |
| Baseball Player Nicknames #2 | 0 | - | 4.09 | 16,679 |
| Game of Thrones Last Names | 0 | - | 4.53 | 103,396 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,442,820 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 131,964 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,323 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,389 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,054 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 76,215 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,708 |
| Random Point on Land to European Country | 0 | - | 4.94 | 78,316 |
| 20 Random Country Flags | 0 | - | 4.99 | 621,073 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 90,057 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,615 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,514 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,619 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,407 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,650 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,665 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 98,011 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 123,368 |
| Countries in a Penrose Tiling of the World Map | 0 | - | 4.95 | 57,647 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,610 |
