| 415 | Name the Author (American Literature) | 2021-08-19 | 2 |
| 379 | Prime Ministers of Spain (since 1975) | 2022-02-02 | 2 |
| 291 | U.S. Senate Majority Leaders | 2021-01-31 | 0 |
| 277 | Random Chinese Characters | 2020-08-20 | 1 |
| 243 | Artsakh Country Quiz | 2022-05-01 | 3 |
| 243 | Greatest Classical Pianists by Picture | 2021-07-07 | 1 |
| 224 | Major Political Parties in Italy | 2022-09-26 | 0 |
| 216 | Mongolic Language Family Tree | 2020-10-08 | 1 |
| 212 | U.S. Virgin Islands Trivia | 2020-08-20 | 2 |
| 210 | Major Political Parties in France | 2022-06-19 | 1 |
| 172 | Curaçao Country Quiz | 2020-08-19 | 0 |
| 169 | Countries Visited by Donald Trump Map Quiz | 2020-09-04 | 0 |
| 166 | Prime Ministers of Portugal (Third Republic) | 2021-02-19 | 1 |
| 163 | Greatest Violinists By Picture | 2021-08-11 | 0 |
| 158 | Name the Author (Gothic Fiction) | 2020-09-01 | 1 |
| 154 | Northern Mariana Islands Trivia | 2020-08-22 | 4 |
| 147 | Prime Ministers of Malaysia | 2021-08-23 | 1 |
| 124 | Political Parties in Knesset (Israel) | 2022-11-29 | 0 |
| 112 | Longest Serving U.S. Senators | 2020-10-04 | 1 |
| 101 | Political Parties in the Hellenic Parliament (Greece) | 2021-11-02 | 1 |
| 98 | Political Parties in the Dáil Éireann (Ireland) | 2021-11-02 | 0 |
| 92 | U.S. Cabinet Departments by Federal Agencies | 2021-08-03 | 1 |
| 85 | You Gotta Know These African-American Civil Rights Leaders | 2021-08-17 | 0 |
| 83 | U.S. Minor Outlying Islands Quiz | 2022-06-19 | 0 |
| 80 | Political Parties in the State Duma (Russia) | 2022-02-19 | 0 |
| 73 | Name the Author (Crime/Mystery) | 2020-08-24 | 0 |
| 68 | Prime Ministers of the Russian Federation | 2021-02-19 | 0 |
| 67 | Short Story Writers | 2020-08-23 | 1 |
| 66 | Name the Author (Fantasy) | 2020-08-25 | 0 |
| 66 | Italian Opera Composers | 2020-08-28 | 0 |
| 65 | Branches of the Afroasiatic Language Family | 2020-10-07 | 0 |
| 60 | Prime Ministers of Romania (since 1989) | 2021-02-19 | 0 |
| 59 | Political Parties in the Portuguese Parliament | 2022-01-31 | 0 |
| 58 | Political Parties in the House of Representatives (Japan) | 2021-11-02 | 0 |
| 54 | German Opera Composers | 2020-08-28 | 0 |
| 53 | You Gotta Know These Nobel Prize Winners in Medicine | 2020-11-22 | 0 |
| 51 | Major Political Parties in Spain | 2022-06-07 | 0 |
| 49 | English Opera Composers | 2020-08-28 | 0 |
| 49 | Name the Author (Chinese Literature) | 2020-08-25 | 0 |
| 46 | Sahrawi Arab Democratic Republic Country Quiz | 2020-08-18 | 0 |
| 43 | You Gotta Know These Popes | 2020-11-23 | 0 |
| 39 | Country Flags With Birds | 2020-08-24 | 2 |
| 39 | Prime Ministers of Vietnam (since 1976) | 2021-02-20 | 0 |
| 39 | Political Parties in the Chamber of Deputies (Mexico) | 2021-08-05 | 0 |
| 37 | French Opera Composers | 2020-08-28 | 0 |
| 36 | Early Romantic Composers | 2020-08-25 | 0 |
| 34 | Name the Author (African Literature) | 2021-09-03 | 0 |
| 33 | Composers of the Classical Period | 2020-09-01 | 0 |
| 32 | Russian Opera Composers | 2020-08-28 | 0 |
| 32 | The Eris Quiz | 2020-08-21 | 0 |
| 26 | U.S. Cities by Mayor #1 | 2020-09-27 | 0 |
| 26 | Operatic Vocal Classifications | 2020-08-27 | 0 |
| 26 | Name the Author (Australian Literature) | 2021-09-08 | 0 |
| 25 | Pulitzer Prize for Music Winners | 2020-08-27 | 0 |
| 25 | Contemporary Classical Composers | 2020-08-24 | 0 |
| 24 | Asian-Americans in the U.S. Senate | 2021-02-05 | 0 |
| 21 | Country by Photo of its Leader #3 | 2020-09-01 | 0 |
| 19 | Longest Serving U.S. Representatives | 2021-02-22 | 0 |
| 17 | Governors General of Australia | 2020-09-02 | 0 |
| 14 | Country by Photo of its Leader #4 | 2020-09-01 | 0 |
| 13 | U.S. Cities by Mayor #2 | 2020-10-07 | 0 |
| 13 | Chinese Cities in English | 2020-10-12 | 0 |
| 12 | Country by Photo of its Leader #5 | 2020-09-01 | 0 |
| 11 | A Quiz about the Baháʼí Faith | 2020-11-22 | 0 |
| 11 | Kings (Druk Gyalpo) of Bhutan | 2021-09-24 | 0 |
| 11 | Governors General of New Zealand | 2020-09-03 | 0 |
| 11 | Presidents of Iceland | 2021-08-28 | 0 |
| 8 | Prime Ministers of Kazakhstan | 2021-03-21 | 0 |
| 7 | Channel Islands (California) Quiz | 2020-08-18 | 0 |
| 3 | Prime or Composite? | 2020-08-27 | 0 |
| 2 | Prime Ministers (Premiers) of Greenland | 2021-02-18 | 0 |
| 2 | Gounod Operas | 2020-08-28 | 0 |
| 2 | Rimsky-Korsakov Operas | 2020-08-28 | 0 |
| 1 | Nadine Gordimer Novels | 2021-01-04 | 0 |
