| Name the English Monarchs | 0 | - | 4.91 | 502,619 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,544 |
| British History A-Z #1 | 0 | - | 4.45 | 46,481 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,142 |
| The Trojan War | 0 | - | 4.83 | 39,724 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,403 |
| Name that Greek Letter | 0 | - | 4.93 | 323,443 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,836 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,526 |
| Roman Emperors | 0 | - | 4.95 | 120,038 |
| Russian History A-Z | 0 | - | 4.38 | 31,713 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,007 |
| German History A-Z | 0 | - | 4.49 | 24,605 |
| British Geography A-Z | 0 | - | 4.42 | 19,518 |
| London A-Z | 0 | - | 4.10 | 40,773 |
| Italian History A-Z | 0 | - | 4.21 | 17,707 |
| Spanish History A-Z | 0 | - | 4.37 | 19,294 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,160 |
| Monarchies of Europe | 0 | - | 4.90 | 98,142 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,239 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 81,771 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,666 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,997 |
| Countries Bordering France | 0 | - | 4.83 | 402,530 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,394 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,791 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,661 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,506 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,239 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 118,866 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,969 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,617 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,514 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,654 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,540 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,846 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,701 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,011 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,437 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,812 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,602 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,112 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,999 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,245 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,123 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,792 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,490 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,769 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,315 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,870 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,177 |
| French History A-Z | 0 | - | 4.27 | 24,636 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,677 |
| Counties of Ireland | 0 | - | 4.92 | 195,261 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,863 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,037 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,975 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,034 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,689 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,652 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,837 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,120 |
| Name a Country A-Z | 0 | - | 5.00 | 243,399 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,179 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,199 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,425 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,327 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,484 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,576 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,340 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,938 |
| British Monopoly Board | 0 | - | 4.52 | 41,167 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,533 |
| English Royal Consorts | 0 | - | 4.38 | 37,351 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 401,376 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,019 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,452 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,645 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,923 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,056 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,723 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,541 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,178 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,737 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,927 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,188 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,234 |
| European Geography A-Z | 0 | - | 4.29 | 49,265 |
| The Only European Country ... | 0 | - | 4.91 | 216,609 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,120 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,805 |
| History of The Netherlands | 0 | - | 4.46 | 17,433 |
| Countries that Beat Iceland | 0 | - | 4.82 | 42,861 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,350 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 141,091 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,041 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,653 |
| History of Russia Quiz | 0 | - | 4.47 | 31,917 |
| Ancient Greek Words | 0 | - | 4.93 | 111,596 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,660 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,658 |
| History of Italy | 0 | - | 4.55 | 31,973 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,743 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,925 |
| Roman Names for Places | 0 | - | 4.62 | 58,282 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,659 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,356 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,236 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,163 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,258 |
| Counties of England | 0 | - | 4.97 | 796,681 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,862 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,671 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,598 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,838 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,940 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,067 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,656 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,201 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,695 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,150 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,981 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,504 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,835 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,280 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,185 |
| Slavic Countries | 0 | - | 4.96 | 111,653 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,955 |
| Famous Irish People | 0 | - | 4.05 | 45,994 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,096 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,130 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,266 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,752 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,503 |
| Champions League Winners | 0 | - | 4.92 | 1,006,669 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,135 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,697 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,412 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,901 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,367 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,030 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,876 |
| Countries that Start with A | 0 | - | 4.98 | 2,162,465 |
| Countries that Start with B | 0 | - | 4.95 | 2,294,169 |
| Countries that Start with C | 0 | - | 4.96 | 1,821,932 |
| Countries that Start with D | 0 | - | 4.96 | 709,510 |
| Countries that Start with E | 0 | - | 4.95 | 1,377,069 |
| Countries that Start with G | 0 | - | 4.97 | 1,503,174 |
| Countries that Start with H | 0 | - | 4.96 | 604,689 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,231 |
| Countries that Start with J | 0 | - | 4.98 | 602,371 |
| Countries that Start with K | 0 | - | 4.97 | 815,727 |
| Countries that Start with L | 0 | - | 4.98 | 1,090,655 |
| Countries that Start with N | 0 | - | 4.93 | 1,117,630 |
| Countries that Start with P | 0 | - | 4.94 | 1,216,035 |
| Countries that Start with S | 0 | - | 4.98 | 1,754,684 |
| Countries that Start with T | 0 | - | 4.90 | 1,009,776 |
| Countries that Start with U | 0 | - | 4.97 | 904,452 |
| Countries that Start with V | 0 | - | 4.98 | 609,327 |
| Countries that Start with F | 0 | - | 4.83 | 617,557 |
| Countries that Start with M | 0 | - | 4.97 | 1,381,586 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,452 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,852 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,516 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,299 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,126 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,756 |
| European Countries with One Border | 0 | - | 4.97 | 182,771 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,573 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,979 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,140 |
| Countries That Border Russia | 0 | - | 4.98 | 461,726 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,895 |
| History of Austria | 0 | - | 4.70 | 17,861 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,429 |
| Geography of the French Empire | 0 | - | 4.45 | 27,059 |
| The French Revolution | 0 | - | 4.47 | 23,929 |
| Kings of France Quiz | 0 | - | 4.20 | 32,745 |
| History of France | 0 | - | 4.59 | 56,975 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,809 |
| States of Germany | 0 | - | 4.96 | 152,560 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,033 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,300 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,499 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,946 |
| Regions of Italy | 0 | - | 4.92 | 75,864 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,183 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,149 |
| The Vikings! | 0 | - | 4.46 | 28,343 |
| The Portuguese Empire | 0 | - | 4.58 | 12,064 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,932 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,204 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 93,995 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,351 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,467 |
| Geography of the British Empire | 0 | - | 4.48 | 39,671 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,443 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,699 |
| Monarchies of Asia | 0 | - | 4.97 | 71,086 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,885 |
