| Name the English Monarchs | 0 | - | 4.92 | 497,529 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,384 |
| Name that Greek Letter | 0 | - | 4.94 | 321,476 |
| The Trojan War | 0 | - | 4.83 | 39,400 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,405 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,996 |
| Roman Emperors | 0 | - | 4.95 | 118,344 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,261 |
| Monarchies of Europe | 0 | - | 4.90 | 97,239 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,130 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,796 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,493 |
| German History A-Z | 0 | - | 4.49 | 24,192 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,094 |
| English Royal Consorts | 0 | - | 4.37 | 37,146 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,592 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,283 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,412 |
| British History A-Z #1 | 0 | - | 4.45 | 45,772 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,651 |
| The Reign of Queen Elizabeth II | 0 | - | 4.35 | 35,661 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,820 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,325 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,274 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,017 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,938 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,587 |
| States of Germany | 0 | - | 4.96 | 149,863 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,936 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,919 |
| Monarchies of Asia | 0 | - | 4.97 | 70,550 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,185 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,053 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,295 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,968 |
| Countries Bordering France | 0 | - | 4.85 | 397,597 |
| Germany Country Quiz | 0 | - | 4.82 | 156,434 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,368 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,815 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,409 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,516 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,648 |
| Roman Names for Places | 0 | - | 4.62 | 57,834 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,597 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,289 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,046 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,424 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,329 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,159 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,457 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,892 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,495 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,692 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,488 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,765 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,909 |
| Counties of Ireland | 0 | - | 4.92 | 192,861 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,392 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,198 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,306 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,170 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,430 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,783 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,473 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,635 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,717 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 396,803 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,938 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,105 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,556 |
| Kings of France Quiz | 0 | - | 4.20 | 32,542 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,614 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,374 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,415 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,821 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,109 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,773 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,612 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,411 |
| British Monopoly Board | 0 | - | 4.52 | 41,023 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,781 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,114 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,288 |
| Countries in World War I | 0 | - | 4.88 | 226,495 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,133 |
| French History A-Z | 0 | - | 4.17 | 18,618 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,211 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,939 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,295 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,004 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,940 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,817 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,912 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 138,948 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,796 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,795 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,808 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,390 |
| The Only European Country ... | 0 | - | 4.91 | 213,575 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,370 |
| History of Russia Quiz | 0 | - | 4.49 | 31,777 |
| Germany A-Z | 0 | - | 4.56 | 62,286 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,749 |
| History of Germany | 0 | - | 4.39 | 52,595 |
| Ancient Greek Words | 0 | - | 4.92 | 110,596 |
| History of Italy | 0 | - | 4.55 | 31,802 |
| Italian History A-Z | 0 | - | 4.21 | 17,360 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,225 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,571 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,468 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,965 |
| Spanish History A-Z | 0 | - | 4.36 | 19,015 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,627 |
| Counties of England | 0 | - | 4.97 | 788,547 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,362 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,383 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,324 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,279 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,616 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,219 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,978 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,115 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,255 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,421 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,714 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,140 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,722 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,631 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,619 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,705 |
| European Countries with One Border | 0 | - | 4.97 | 181,507 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,022 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,145 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,183 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,092 |
| Slavic Countries | 0 | - | 4.96 | 110,791 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,703 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,123 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,028 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 66,896 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,974 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,285 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,741 |
| Regions of Italy | 0 | - | 4.92 | 74,618 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,755 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,178 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,070 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,031 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,861 |
| Animals in British History | 0 | - | 4.44 | 25,863 |
| Champions League Winners | 0 | - | 4.92 | 995,365 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,396 |
| Countries in World War II | 0 | - | 4.53 | 903,729 |
| Battle to Country | 0 | - | 4.91 | 52,462 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,746 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,314 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,005 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,021 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,492 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,990 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,131 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,024 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,408 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,081 |
| Russia Country Quiz | 0 | - | 4.85 | 113,584 |
| Countries That Border Russia | 0 | - | 4.98 | 458,644 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,803 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,004 |
| History of Austria | 0 | - | 4.70 | 17,741 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,088 |
| Departments of France | 0 | - | 4.93 | 52,703 |
| Geography of the French Empire | 0 | - | 4.48 | 26,917 |
| The French Revolution | 0 | - | 4.46 | 23,757 |
| History of France | 0 | - | 4.59 | 55,920 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,074 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,744 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,757 |
| Italy Country Quiz | 0 | - | 4.82 | 122,108 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,273 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,001 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,347 |
| Byzantine History | 0 | - | 4.91 | 28,594 |
| The Vikings! | 0 | - | 4.45 | 28,236 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,392 |
| Finland Country Quiz | 0 | - | 4.50 | 59,061 |
| Norway Country Quiz | 0 | - | 4.44 | 76,563 |
| Iceland Country Quiz | 0 | - | 4.69 | 42,838 |
| The Portuguese Empire | 0 | - | 4.54 | 11,984 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,889 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,547 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,042 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,151 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,157 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,718 |
| Geography of the British Empire | 0 | - | 4.48 | 39,464 |
| Medieval English History | 0 | - | 4.53 | 43,295 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,395 |
| England or Wales? | 0 | - | 4.94 | 45,287 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,331 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,461 |
