| Name the English Monarchs | 0 | - | 4.92 | 498,212 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,366 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,312 |
| British History A-Z #1 | 0 | - | 4.45 | 45,988 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,993 |
| The Trojan War | 0 | - | 4.83 | 39,455 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,262 |
| Name that Greek Letter | 0 | - | 4.94 | 321,780 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,630 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,081 |
| Roman Emperors | 0 | - | 4.95 | 118,557 |
| German History A-Z | 0 | - | 4.49 | 24,322 |
| London A-Z | 0 | - | 4.10 | 40,645 |
| Italian History A-Z | 0 | - | 4.21 | 17,463 |
| Spanish History A-Z | 0 | - | 4.37 | 19,107 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,452 |
| Monarchies of Europe | 0 | - | 4.90 | 97,370 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,017 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,478 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,492 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,175 |
| Countries Bordering France | 0 | - | 4.83 | 399,636 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,194 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,559 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,317 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,019 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,436 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,937 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,881 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,743 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,252 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,954 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,699 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,657 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,043 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,342 |
| Europe Map Quiz | 0 | - | 5.00 | 4,733,043 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,620 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,289 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,151 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,671 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,267 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,339 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,172 |
| Russian History A-Z | 0 | - | 4.38 | 30,980 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,530 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,823 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,559 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,835 |
| French History A-Z | 0 | - | 4.21 | 22,557 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,459 |
| Counties of Ireland | 0 | - | 4.92 | 193,179 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,480 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,392 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,387 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,247 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,735 |
| British Geography A-Z | 0 | - | 4.40 | 19,414 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,784 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,806 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,043 |
| Name a Country A-Z | 0 | - | 5.00 | 240,583 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,411 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,434 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,988 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,911 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,892 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,709 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,491 |
| British Monopoly Board | 0 | - | 4.52 | 41,042 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,885 |
| English Royal Consorts | 0 | - | 4.37 | 37,184 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,622 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,438 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,117 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,442 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,245 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,690 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,924 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,307 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,514 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,189 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,943 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,312 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,528 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,673 |
| European Geography A-Z | 0 | - | 4.28 | 49,012 |
| The Only European Country ... | 0 | - | 4.91 | 213,997 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,657 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,588 |
| History of The Netherlands | 0 | - | 4.46 | 17,321 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,371 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,975 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,244 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,716 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 77,710 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,424 |
| History of Russia Quiz | 0 | - | 4.49 | 31,798 |
| Ancient Greek Words | 0 | - | 4.92 | 110,746 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,945 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,452 |
| History of Italy | 0 | - | 4.55 | 31,830 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,547 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,690 |
| Roman Names for Places | 0 | - | 4.62 | 57,894 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,491 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,162 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,990 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,039 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,714 |
| Counties of England | 0 | - | 4.97 | 789,642 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,531 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,346 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,152 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,688 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,248 |
| U.S. History A-Z #1 | 0 | - | 4.35 | 29,447 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,749 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,342 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,468 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,513 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,757 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,968 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,077 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,319 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,242 |
| Slavic Countries | 0 | - | 4.96 | 110,905 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,725 |
| Famous Irish People | 0 | - | 4.05 | 45,861 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,735 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,645 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,071 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,620 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,432 |
| Champions League Winners | 0 | - | 4.92 | 996,946 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,841 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,408 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,178 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,581 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,091 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,737 |
| Countries that Start with A | 0 | - | 4.97 | 2,147,659 |
| Countries that Start with B | 0 | - | 4.95 | 2,280,573 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,920 |
| Countries that Start with D | 0 | - | 4.96 | 701,959 |
| Countries that Start with E | 0 | - | 4.95 | 1,368,005 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,356 |
| Countries that Start with H | 0 | - | 4.96 | 598,307 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,656 |
| Countries that Start with J | 0 | - | 4.98 | 596,355 |
| Countries that Start with K | 0 | - | 4.97 | 809,698 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,266 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,149 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,923 |
| Countries that Start with S | 0 | - | 4.98 | 1,745,071 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,515 |
| Countries that Start with U | 0 | - | 4.97 | 900,144 |
| Countries that Start with V | 0 | - | 4.98 | 605,309 |
| Countries that Start with F | 0 | - | 4.83 | 612,467 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,772 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,402 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,076 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,458 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,952 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,268 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,862 |
| European Countries with One Border | 0 | - | 4.97 | 181,691 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,595 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,860 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,142 |
| Countries That Border Russia | 0 | - | 4.98 | 459,057 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,249 |
| History of Austria | 0 | - | 4.70 | 17,761 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,269 |
| Geography of the French Empire | 0 | - | 4.48 | 26,943 |
| The French Revolution | 0 | - | 4.46 | 23,790 |
| Kings of France Quiz | 0 | - | 4.20 | 32,570 |
| History of France | 0 | - | 4.59 | 56,135 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,780 |
| States of Germany | 0 | - | 4.96 | 150,206 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,389 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,073 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,951 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,425 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,079 |
| Regions of Italy | 0 | - | 4.92 | 74,795 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,118 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,870 |
| The Vikings! | 0 | - | 4.46 | 28,251 |
| The Portuguese Empire | 0 | - | 4.54 | 11,997 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,438 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,264 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,072 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,203 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,846 |
| Geography of the British Empire | 0 | - | 4.48 | 39,497 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,347 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,535 |
| Monarchies of Asia | 0 | - | 4.97 | 70,626 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,452 |
