| Name the English Monarchs | 0 | - | 4.91 | 506,362 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,890 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,795 |
| British History A-Z #1 | 0 | - | 4.45 | 47,261 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,239 |
| The Trojan War | 0 | - | 4.83 | 39,990 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,910 |
| Name that Greek Letter | 0 | - | 4.93 | 324,975 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,954 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,589 |
| Roman Emperors | 0 | - | 4.95 | 121,192 |
| Russian History A-Z | 0 | - | 4.35 | 32,220 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,449 |
| German History A-Z | 0 | - | 4.49 | 24,916 |
| British Geography A-Z | 0 | - | 4.42 | 19,611 |
| London A-Z | 0 | - | 4.10 | 40,877 |
| Italian History A-Z | 0 | - | 4.16 | 17,929 |
| Spanish History A-Z | 0 | - | 4.37 | 19,509 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,718 |
| Monarchies of Europe | 0 | - | 4.90 | 98,875 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,374 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,408 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,767 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,843 |
| Countries Bordering France | 0 | - | 4.83 | 404,905 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,845 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,967 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,951 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,021 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,161 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,549 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,961 |
| European Geography By Letter - D | 0 | - | 4.48 | 117,204 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,066 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,520 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,126 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,606 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,049 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,599 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,186 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,440 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,882 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,793 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,862 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,919 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,786 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,750 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,084 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,948 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,148 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,478 |
| French History A-Z | 0 | - | 4.27 | 25,134 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,637 |
| Counties of Ireland | 0 | - | 4.92 | 197,315 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,254 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,386 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,121 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,369 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,377 |
| British History A-Z #2 | 0 | - | 4.26 | 11,845 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,067 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,303 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,047 |
| Name a Country A-Z | 0 | - | 5.00 | 245,718 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,873 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,316 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,651 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,172 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,153 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,877 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,350 |
| British Monopoly Board | 0 | - | 4.52 | 41,270 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,083 |
| English Royal Consorts | 0 | - | 4.38 | 37,525 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 406,756 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,796 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,237 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,209 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,488 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,199 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,966 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,571 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,213 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,582 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,587 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,896 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,106 |
| European Geography A-Z | 0 | - | 4.29 | 49,483 |
| The Only European Country ... | 0 | - | 4.91 | 219,005 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,509 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,742 |
| History of The Netherlands | 0 | - | 4.46 | 17,554 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,228 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,780 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 143,410 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,053 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,641 |
| History of Russia Quiz | 0 | - | 4.47 | 32,005 |
| Ancient Greek Words | 0 | - | 4.93 | 112,458 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,303 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,840 |
| History of Italy | 0 | - | 4.55 | 32,146 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,290 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,206 |
| Roman Names for Places | 0 | - | 4.62 | 58,703 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,820 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,614 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,424 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,313 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,817 |
| Counties of England | 0 | - | 4.97 | 802,916 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,097 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,081 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,054 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,989 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,691 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,523 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,509 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,056 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,787 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,776 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,185 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,754 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,756 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,181 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,791 |
| Slavic Countries | 0 | - | 4.96 | 112,368 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,143 |
| Famous Irish People | 0 | - | 4.05 | 46,064 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,795 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,500 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,406 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,871 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,565 |
| Champions League Winners | 0 | - | 4.92 | 1,016,130 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,466 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 66,080 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,668 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,210 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,665 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,319 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,311 |
| Countries that Start with A | 0 | - | 4.98 | 2,175,689 |
| Countries that Start with B | 0 | - | 4.95 | 2,306,403 |
| Countries that Start with C | 0 | - | 4.96 | 1,831,418 |
| Countries that Start with D | 0 | - | 4.96 | 716,390 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,052 |
| Countries that Start with G | 0 | - | 4.97 | 1,511,477 |
| Countries that Start with H | 0 | - | 4.96 | 609,558 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,547 |
| Countries that Start with J | 0 | - | 4.98 | 606,956 |
| Countries that Start with K | 0 | - | 4.97 | 820,742 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,787 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,832 |
| Countries that Start with P | 0 | - | 4.94 | 1,221,998 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,122 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,906 |
| Countries that Start with U | 0 | - | 4.97 | 908,460 |
| Countries that Start with V | 0 | - | 4.98 | 611,997 |
| Countries that Start with F | 0 | - | 4.83 | 621,278 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,227 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,823 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,679 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,496 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,595 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,764 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,471 |
| European Countries with One Border | 0 | - | 4.97 | 183,800 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,537 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,982 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,480 |
| Countries That Border Russia | 0 | - | 4.98 | 464,496 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,478 |
| History of Austria | 0 | - | 4.70 | 17,972 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,643 |
| Geography of the French Empire | 0 | - | 4.45 | 27,216 |
| The French Revolution | 0 | - | 4.47 | 24,147 |
| Kings of France Quiz | 0 | - | 4.21 | 32,930 |
| History of France | 0 | - | 4.61 | 57,610 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,795 |
| States of Germany | 0 | - | 4.95 | 154,491 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,559 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,689 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,616 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,580 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,846 |
| Regions of Italy | 0 | - | 4.92 | 77,080 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,264 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,799 |
| The Vikings! | 0 | - | 4.46 | 28,406 |
| The Portuguese Empire | 0 | - | 4.58 | 12,106 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,315 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,761 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,523 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,462 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,250 |
| Geography of the British Empire | 0 | - | 4.48 | 39,845 |
| The Reign of Queen Victoria | 0 | - | 4.34 | 23,547 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,841 |
| Monarchies of Asia | 0 | - | 4.97 | 71,504 |
