| U.S. Presidents Quiz | 0 | - | 5.00 | 3,723,766 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,060 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,521 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,273 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,591 |
| Presidential Middle Names | 0 | - | 4.41 | 60,699 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,671 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,879 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,621 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,185 |
| U.S. State Flags | 0 | - | 4.89 | 172,744 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,678 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,935 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,358 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 28,760 |
| First Ladies of the United States | 0 | - | 4.28 | 85,934 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,307 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,452 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,356 |
| Name a Valid U.S. President #1 | 0 | - | 4.90 | 193,680 |
| Add a Letter - Make a U.S. President | 0 | - | 4.58 | 24,089 |
| Win the 1828 U.S. Presidential Election | 0 | - | 4.31 | 58,215 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,937 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,185 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,875 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,889 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,593 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 635,279 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,865 |
| Countries of the Popes | 0 | - | 4.79 | 128,686 |
| South America Flags Map Quiz | 0 | - | 4.95 | 88,866 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,661 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,337 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,476 |
| The George Washington Presidency | 0 | - | 4.03 | 14,605 |
| The Thomas Jefferson Presidency | 0 | - | 4.26 | 13,777 |
| Random U.S. Vice President to President | 0 | - | 4.39 | 30,749 |
| The John Adams Presidency | 0 | - | 4.12 | 8,787 |
| Franklin... or Theodore Roosevelt | 0 | - | 4.35 | 16,983 |
| The Theodore Roosevelt Presidency | 0 | - | 4.39 | 7,774 |
| U.S. Presidential Knowledge - Multiple Choice | 0 | - | 4.36 | 21,754 |
| U.S. Vice Presidential Trivia | 0 | - | 4.26 | 12,923 |
| Hawaiian Islands | 0 | - | 4.83 | 42,932 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,494 |
| The American Civil War | 0 | - | 4.62 | 52,620 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,208 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,577 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,768 |
| Top 10 U.S. States by Republican Party Support | 0 | - | 4.44 | 75,789 |
| Top 10 U.S. States by Democratic Party Support | 0 | - | 4.63 | 81,646 |
| Top 10 U.S. Swing States in the 2024 Election | 0 | - | 4.51 | 75,414 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,834 |
| Satellite Images - U.S. States | 0 | - | 4.54 | 45,352 |
| U.S. States by Church Attendance | 0 | - | 4.59 | 32,550 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,291 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,284 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,189 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,679 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,774 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,512 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,413 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,563 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,924 |
| George Washington... or George W. Bush? | 0 | - | 4.16 | 12,297 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,081 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 306,136 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,550 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,525 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,668 |
| Name the English Monarchs | 0 | - | 4.91 | 506,100 |
| The Vietnam War | 0 | - | 4.44 | 35,643 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,454 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.42 | 24,060 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,713 |
| Every European Country Shape | 0 | - | 4.96 | 202,852 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,734 |
| The Trojan War | 0 | - | 4.83 | 39,966 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,547 |
| Name that Greek Letter | 0 | - | 4.93 | 324,883 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,870 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,561 |
| Roman Emperors | 0 | - | 4.95 | 121,101 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,614 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,341 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,832 |
| Pope Facts | 0 | - | 4.39 | 31,377 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,568 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,126 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,746 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.81 | 55,156 |
| Every African Country Shape | 0 | - | 4.90 | 88,316 |
| National Founders | 0 | - | 4.40 | 83,962 |
| American Junk Food Brands #1 | 0 | - | 3.84 | 61,028 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,261 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 117,876 |
| U.S. President Scramble | 0 | - | 4.40 | 117,436 |
| U.S. Presidents True or False | 0 | - | 3.96 | 15,645 |
| U.S. Presidents by Picture - Multiple Choice | 0 | - | 4.50 | 29,025 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 48,074 |
| California... or Florida? | 0 | - | 4.60 | 51,828 |
| Georgia Counties | 0 | - | 4.52 | 49,979 |
| New York Counties | 0 | - | 4.65 | 51,061 |
| Texas Counties | 0 | - | 4.56 | 77,848 |
| North Carolina Counties | 0 | - | 4.54 | 53,625 |
| Ohio Counties | 0 | - | 4.48 | 46,154 |
| Pennsylvania Counties | 0 | - | 4.50 | 53,308 |
| Virginia Counties | 0 | - | 4.45 | 33,436 |
| West Virginia Counties | 0 | - | 4.63 | 33,991 |
| States and Provinces that Touch the Great Lakes | 0 | - | 4.58 | 34,982 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,848 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,540 |
| Random General Knowledge - U.S. States | 0 | - | 4.46 | 42,147 |
| Cartoon Versions of U.S. States | 0 | - | 4.75 | 64,130 |
| Random Point on Land to US State | 0 | - | 4.63 | 69,683 |
| U.S. States by Nickname | 0 | - | 4.57 | 69,721 |
| Merged U.S. States | 0 | - | 4.37 | 44,404 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,414 |
| Which City in Canada? | 0 | - | 4.83 | 57,342 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,924 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 58,466 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,537 |
| Ancient Greek Words | 0 | - | 4.93 | 112,396 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,424 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 43,282 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 494,620 |
| Africa Flags Map Quiz | 0 | - | 4.95 | 36,813 |
| Eastern Africa Map Quiz | 0 | - | 4.98 | 79,488 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.89 | 99,704 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.86 | 114,597 |
| Countries that Start with A - Shape Quiz | 0 | - | 4.93 | 35,055 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.94 | 83,162 |
| Random American Countries on a Map | 0 | - | 4.96 | 100,154 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,388 |
| American Monopoly Board - Map Quiz | 0 | - | 4.52 | 21,257 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,141 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,861 |
| U.S. Presidents to Win the Nobel Peace Prize | 0 | - | 4.34 | 18,374 |
| Star-Spangled Banner Lyrics | 0 | - | 4.36 | 179,862 |
| California Counties Map Quiz | 0 | - | 4.36 | 34,613 |
| California Counties | 0 | - | 4.39 | 120,217 |
| Colorado Counties | 0 | - | 4.45 | 26,913 |
| Florida Counties | 0 | - | 4.40 | 49,022 |
| State Quiz - Hawaii | 0 | - | 4.35 | 65,614 |
| Illinois Counties | 0 | - | 4.56 | 30,592 |
| Indiana Counties | 0 | - | 4.46 | 29,161 |
| Michigan Counties | 0 | - | 4.63 | 30,818 |
| U.S. States that Border Missouri | 0 | - | 4.55 | 12,860 |
| Las Vegas Casinos | 0 | - | 4.13 | 38,142 |
| New Jersey Counties | 0 | - | 4.57 | 30,576 |
| Washington Counties | 0 | - | 4.78 | 27,116 |
| Wisconsin Counties | 0 | - | 4.51 | 27,239 |
| Top 10 Most Jewish U.S. States | 0 | - | 4.31 | 43,144 |
| US States and State Capitals | 0 | - | 4.99 | 165,177 |
| TV Shows by U.S. State | 0 | - | 4.33 | 47,544 |
| U.S. States by Alternate Nicknames | 0 | - | 4.24 | 42,985 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 23,122 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,653 |
| Europe Map Quiz | 0 | - | 5.00 | 4,785,773 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,290 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,173 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,970 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 320,367 |
| History of Russia Quiz | 0 | - | 4.47 | 31,999 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,635 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,240 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,831 |
| History of Italy | 0 | - | 4.55 | 32,138 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,487 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,810 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,413 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,080 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,178 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 170,887 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,908 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,738 |
| Random African Countries on a Map | 0 | - | 4.99 | 297,727 |
| Communist Countries in History | 0 | - | 4.63 | 497,983 |
| Countries that Start with B - Shape Quiz | 0 | - | 4.88 | 27,738 |
| History of South Africa | 0 | - | 4.60 | 17,757 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,850 |
| Australian Capitals | 0 | - | 4.92 | 62,826 |
| History of Mexico | 0 | - | 4.52 | 15,360 |
| Puerto Rico Trivia | 0 | - | 4.52 | 12,062 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,463 |
| American Junk Food Brands #2 | 0 | - | 3.82 | 30,792 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,134 |
| Mayors of New York City | 0 | - | 3.96 | 12,282 |
| U.S. Presidential Quotes | 0 | - | 4.37 | 44,602 |
| The George W. Bush Presidency | 0 | - | 4.06 | 32,273 |
| People in Pictures with Ronald Reagan | 0 | - | 4.35 | 40,910 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,333 |
| Movies with America in the Title | 0 | - | 4.17 | 28,791 |
| North Dakota... or South Dakota? | 0 | - | 4.45 | 13,742 |
| The Most Recent... United States | 0 | - | 4.46 | 18,564 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,605 |
| U.S. States Bordering the Great Lakes | 0 | - | 4.55 | 18,305 |
| States in a Tank of the U.S. Map | 0 | - | 4.47 | 31,434 |
| U.S. States with Shortest Maximum Distances to the Ocean | 0 | - | 4.66 | 21,352 |
| U.S. National Parks by State - Multiple Choice | 0 | - | 4.46 | 19,342 |
| Shapes of Mediterranean Sea Countries | 0 | - | 4.80 | 56,063 |
