| 566 | Kings of Prussia and the German Empire | 2020-07-26 | 2 |
| 375 | NATO Members Quiz | 2023-07-10 | 1 |
| 363 | US Senators Quiz (2023-2025) | 2024-11-16 | 0 |
| 296 | Latin American Capitals Quiz | 2020-07-04 | 0 |
| 182 | Genocides Throughout History Quiz | 2020-04-09 | 1 |
| 167 | Largest City in Every Country | 2022-05-13 | 2 |
| 134 | American Secretary of States Quiz | 2020-07-19 | 0 |
| 132 | NATO Member Quiz (2024) | 2024-09-28 | 0 |
| 120 | Mayors of the Largest 100 Largest American Cities | 2024-10-15 | 1 |
| 119 | US States that were Independent Countries | 2020-07-03 | 0 |
| 107 | African Capitals Quiz | 2020-02-18 | 0 |
| 91 | American Political Parties By How Many Presidents They Had | 2020-07-04 | 0 |
| 87 | Active Separatist Movements in Europe | 2020-02-25 | 0 |
| 69 | United States Constitutional Amendment Quiz | 2020-06-03 | 1 |
| 64 | British Political Parties | 2020-06-23 | 0 |
| 62 | Supreme Court Chief Justices Quiz | 2020-12-14 | 0 |
| 54 | Quiz of Kings of England and the United Kingdom | 2020-07-21 | 0 |
| 54 | Quiz of American Wars and Conflicts | 2020-07-31 | 0 |
| 53 | American Political Parties | 2020-06-24 | 0 |
| 52 | U.S. Vice Presidents | 2024-10-14 | 0 |
| 50 | U.S. Presidents by date of death | 2020-06-01 | 0 |
| 46 | Cities of New England | 2020-10-15 | 0 |
| 42 | Largest Cities in Each U.S. State | 2020-02-07 | 0 |
| 41 | European Union Member States Quiz | 2020-02-14 | 0 |
| 41 | Countries Ranked by the Economists' Democracy Index | 2020-03-14 | 0 |
| 39 | Largest Cities in the World Quiz | 2020-09-22 | 0 |
| 37 | Democrat Senators That Have Lost Their Reelection Since 2000 | 2021-11-23 | 0 |
| 36 | Active Separatist Movements in the Americas | 2020-03-10 | 0 |
| 36 | Election Losers | 2021-01-07 | 0 |
| 26 | Members of the former Warsaw Pact | 2020-02-14 | 0 |
| 26 | Republican Senators That Have Lost Their Reelection Since 2000 | 2024-10-06 | 0 |
| 25 | Active Separatist Movements in Asia | 2020-03-11 | 0 |
| 22 | Dynasties of China | 2020-07-26 | 0 |
| 20 | Prime Ministers of the United Kingdom Quiz | 2022-09-12 | 0 |
| 20 | U.S. Senators Quiz (2021-2023) | 2021-01-07 | 0 |
| 19 | Active Separatist Movements in Africa | 2020-02-27 | 0 |
| 18 | Leaders of Every Country in 1914 | 2020-06-15 | 0 |
| 18 | OPEC Members Quiz | 2020-05-30 | 0 |
| 18 | United States Senators Quiz (Pre-2021) | 2021-01-07 | 0 |
| 17 | Previous Occupations of Presidents | 2021-01-23 | 0 |
| 16 | Member Parties of the S&D Group | 2024-09-28 | 0 |
| 16 | Quiz on Every U.S. Representative (Pre-2021) | 2021-01-07 | 0 |
| 15 | American Governors Quiz (2023-2024) | 2022-12-30 | 0 |
| 15 | U.S. Representatives Quiz (2021-2023) | 2022-09-02 | 0 |
| 15 | African Leaders Who Have Been Assassinated By France | 2020-09-20 | 0 |
| 15 | US Cities by Population | 2020-08-05 | 0 |
| 14 | US Governors Quiz (Present-2023) | 2021-11-30 | 0 |
| 14 | Every Micronation | 2020-02-07 | 0 |
| 13 | Member Parties of the EPP Group | 2024-10-02 | 0 |
| 12 | Members of the Blue Dog Caucus (2021-2023) | 2023-07-10 | 1 |
| 10 | Name Every US Governor | 2020-06-01 | 0 |
| 10 | SCO Member States | 2020-05-28 | 0 |
| 10 | Senate Majority Leaders Quiz | 2021-03-11 | 0 |
| 9 | European Prime Ministers Quiz | 2024-09-29 | 0 |
| 7 | Secretary Generals of NATO | 2023-02-03 | 0 |
| 7 | Member Parties of the PfE Group | 2024-10-02 | 0 |
| 6 | US Representatives Quiz (2023-2025) | 2024-09-28 | 0 |
| 5 | Speakers of the House Quiz | 2023-01-07 | 0 |
| 3 | Member Parties of the Greens/EFA Group | 2025-09-04 | 0 |
