| Countries With the Most NBA Players | 0 | - | 4.47 | 119,017 |
| NBA Player to Country | 0 | - | 4.29 | 84,302 |
| Who Did That 1970s Song #1 | 0 | - | 4.48 | 89,204 |
| Highest Grossing 1970s Movies | 0 | - | 4.30 | 29,597 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,751 |
| Countries by Sports in 60 Seconds | 0 | - | 4.92 | 148,557 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,271 |
| Countries by Founding Story | 0 | - | 4.95 | 77,904 |
| Independence from Whom | 0 | - | 4.99 | 213,391 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,649 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,924 |
| The Jimmy Carter Presidency | 0 | - | 4.41 | 19,244 |
| 1970s Movie Trivia | 0 | - | 4.28 | 21,852 |
| Who Did That 1970s Song #2 | 0 | - | 4.25 | 53,926 |
| I Will Survive Lyrics | 0 | - | 4.25 | 37,767 |
| Movies by Year, 1950–1969 | 0 | - | 4.48 | 22,135 |
| North American Sports Cities | 0 | - | 4.82 | 173,287 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,598 |
| Olympic Host Countries | 0 | - | 4.98 | 202,184 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,345 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,757 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,921 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,549 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,164 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,057 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,433 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,713 |
| Recently Independent Countries | 0 | - | 4.98 | 160,502 |
| Former Capitals | 0 | - | 4.88 | 71,723 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,724 |
| Historical City to Country | 0 | - | 4.85 | 79,097 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,600 |
| Countries by Former Name | 0 | - | 4.99 | 125,964 |
| Cities by Former Name | 0 | - | 4.83 | 92,172 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,007 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,603 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,277 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,571 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,921 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,863 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,738 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,853 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,973 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 54,313 |
| Countries of the World in 1882 with a Map | 0 | - | 4.89 | 45,226 |
| Countries of the World in 1789 with a Map | 0 | - | 4.95 | 67,561 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,166 |
| The Richard Nixon Presidency | 0 | - | 4.05 | 22,110 |
| Countries with the Most Downhill Skiing | 0 | - | 4.89 | 57,761 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,089 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,684 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,014 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,591 |
| U.S. History Timeline Quiz | 0 | - | 4.96 | 57,330 |
| Battle to Country | 0 | - | 4.91 | 54,099 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,357 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,284 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,532 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,967 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,977 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,998 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,708 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 45,977 |
| 1970s Albums | 0 | - | 4.38 | 27,799 |
| Countries with Major League Baseball Players | 0 | - | 4.62 | 68,448 |
| Countries Where Baseball is the Most Popular Sport | 0 | - | 4.42 | 55,561 |
| Countries with the Fastest Marathoners | 0 | - | 4.51 | 96,062 |
| Countries with the Fastest 100 Meter Sprinters | 0 | - | 4.44 | 86,736 |
| Countries with Most Grand Slam Tennis Titles | 0 | - | 4.42 | 58,134 |
| Countries with the Most Golf Courses | 0 | - | 4.55 | 56,876 |
| Countries that Export the Most Football Players | 0 | - | 4.43 | 59,624 |
| Countries Where Cricket is the Most Popular Sport | 0 | - | 4.77 | 67,496 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 120,963 |
| Former Countries | 0 | - | 4.77 | 134,315 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,858 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,608 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 95,922 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,289 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,821 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,352 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,679 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,776 |
| Former Country Flag-Shape Picture Quiz | 0 | - | 4.98 | 90,321 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,730,478 |
| The John F. Kennedy Presidency | 0 | - | 4.47 | 43,959 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,404 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 86,780 |
| Countries in World War I | 0 | - | 4.88 | 229,410 |
| Countries by Independence Day | 0 | - | 4.62 | 52,877 |
| Ancient City to Country | 0 | - | 4.72 | 108,397 |
| Former Countries by Capital | 0 | - | 4.45 | 127,886 |
| City-States | 0 | - | 4.53 | 37,435 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,945 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,103 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,525 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,965 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 90,097 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,497 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,782 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,996 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 70,631 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 58,590 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.81 | 55,281 |
| All Modern-Day Countries Ever Controlled by Greeks | 0 | - | 4.98 | 54,749 |
| All Modern-Day Countries Ever Controlled by the Netherlands | 0 | - | 4.95 | 53,912 |
| All Modern-Day Countries Ever Controlled by Portugal | 0 | - | 4.93 | 44,630 |
| All Modern-Day Countries Ever Controlled by the Russian Empire | 0 | - | 4.96 | 37,986 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,583 |
| 1970s Music Trivia | 0 | - | 4.29 | 31,822 |
| 1970s Celebrities by Picture #1 | 0 | - | 4.20 | 58,319 |
| 1970s Celebrities by Picture #2 | 0 | - | 4.21 | 51,013 |
| 1970s Decade Quiz | 0 | - | 4.23 | 61,032 |
| FIFA World Cup Final Host Cities | 0 | - | 4.68 | 29,533 |
| Athletes by Country Quiz #1 | 0 | - | 4.36 | 45,463 |
| MLB Cities Map Quiz | 0 | - | 4.50 | 70,007 |
| Countries with the Most Summer Olympics Medals | 0 | - | 4.55 | 93,564 |
| Winter Olympics Hosts | 0 | - | 4.41 | 87,803 |
| All-Time Winter Olympics Medal Table | 0 | - | 4.46 | 178,639 |
| NHL Hockey Cities Map Quiz | 0 | - | 4.41 | 107,914 |
| Countries With The Most NHL Hockey Players | 0 | - | 4.48 | 101,467 |
| NBA Cities Map Quiz | 0 | - | 4.51 | 254,135 |
| Top 10 Boston Celtics Players | 0 | - | 4.05 | 23,991 |
| Boston Celtics Trivia | 0 | - | 4.12 | 15,213 |
| Golden State Warriors Trivia | 0 | - | 4.25 | 25,070 |
| Stephen Curry Quiz | 0 | - | 4.37 | 67,417 |
| Top 10 Los Angeles Lakers of All-Time | 0 | - | 4.24 | 47,245 |
| Los Angeles Lakers Trivia | 0 | - | 4.15 | 26,785 |
| LeBron James Trivia | 0 | - | 4.01 | 171,856 |
| LeBron... or Kobe? | 0 | - | 4.04 | 70,567 |
| City by Football Clubs | 0 | - | 4.38 | 138,502 |
| Top 10 Countries with the Most Registered Soccer Players | 0 | - | 4.13 | 72,681 |
| American Cities by Stadium | 0 | - | 4.02 | 36,602 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,302 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,948 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 58,326 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,595 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,395 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,176 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,822 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,786 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,739 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,837 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,296 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,864 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,948 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,999 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,950 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 86,587 |
| Countries in World War II | 0 | - | 4.54 | 920,162 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,675 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,528 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,625 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,697 |
| Communist Countries in History | 0 | - | 4.63 | 498,701 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,683 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,225 |
| Political Movements by Country | 0 | - | 4.46 | 72,820 |
| Home Cities in History #1 | 0 | - | 4.04 | 16,619 |
| Cities in European History #1 | 0 | - | 4.63 | 134,727 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,973 |
| Guerrillas by Country | 0 | - | 4.40 | 41,249 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 102,433 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 127,025 |
| Languages of the Roman Empire with a Map | 0 | - | 4.94 | 61,296 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,362 |
| 2017 News Stories - Name the Country | 0 | - | 4.46 | 28,639 |
| 2018 News Stories - Name the Country | 0 | - | 4.42 | 23,942 |
| Inventions by Country #1 | 0 | - | 4.47 | 55,198 |
| Modern-Day Countries of the Khmer Empire on a Map | 0 | - | 4.77 | 45,897 |
| Modern-Day Countries of the Mayan Civilization | 0 | - | 4.78 | 33,748 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,568 |
| 1970s Celebrities | 0 | - | 4.03 | 13,795 |
| People Portrayed by Andy Warhol | 0 | - | 4.35 | 38,285 |
| #1 Hits of the 1970s | 0 | - | 4.44 | 85,466 |
| Athletes by Country #2 | 0 | - | 4.13 | 26,668 |
| NFL Football by Year, 1967–1999 | 0 | - | 4.34 | 25,512 |
| NFL Cities Map Quiz | 0 | - | 4.38 | 235,662 |
| MLB Baseball by Year, 1960–1989 | 0 | - | 4.09 | 18,717 |
| MLB Baseball by Year, 1990–present | 0 | - | 4.02 | 15,075 |
| Olympic Medalists in Ice Hockey | 0 | - | 4.35 | 44,695 |
| Boxing Countries | 0 | - | 4.27 | 31,503 |
| Capitals of 2018 FIFA World Cup Teams | 0 | - | 4.67 | 31,069 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 69,070 |
| Countries with Most Rugby Players per Capita | 0 | - | 4.32 | 21,852 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,511 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,700 |
| Countries Once Held by Sweden | 0 | - | 4.18 | 34,871 |
| All Countries that Once Bordered Germany | 0 | - | 4.33 | 75,250 |
| National Founders | 0 | - | 4.40 | 83,998 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,651 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,450 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,744 |
| Presidential Middle Names | 0 | - | 4.42 | 60,797 |
| The Bill Clinton Presidency | 0 | - | 4.24 | 31,551 |
| The George H. W. Bush Presidency | 0 | - | 4.36 | 21,563 |
| The Ronald Reagan Presidency | 0 | - | 4.26 | 24,903 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,735 |
| Assassinated U.S. Presidents | 0 | - | 4.62 | 94,933 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,245 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,655 |
