| Name the English Monarchs | 0 | - | 4.91 | 500,868 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,448 |
| Name that Greek Letter | 0 | - | 4.93 | 322,872 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,831 |
| The Trojan War | 0 | - | 4.83 | 39,618 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,386 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,359 |
| Roman Emperors | 0 | - | 4.95 | 119,516 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,712 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,535 |
| Monarchies of Europe | 0 | - | 4.90 | 97,832 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,314 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,355 |
| German History A-Z | 0 | - | 4.49 | 24,551 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,794 |
| English Royal Consorts | 0 | - | 4.37 | 37,296 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,995 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,848 |
| British History A-Z #1 | 0 | - | 4.45 | 46,354 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,869 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,789 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,725 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 76,004 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,142 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,610 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,496 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,389 |
| States of Germany | 0 | - | 4.96 | 151,546 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,765 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,201 |
| Monarchies of Asia | 0 | - | 4.97 | 70,908 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,759 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,645 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,245 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,425 |
| Countries Bordering France | 0 | - | 4.83 | 401,568 |
| Germany Country Quiz | 0 | - | 4.82 | 157,401 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,374 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,370 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,579 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,665 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,829 |
| Roman Names for Places | 0 | - | 4.62 | 58,126 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,699 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,542 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,411 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,475 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,401 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,313 |
| Europe Map Quiz | 0 | - | 5.00 | 4,750,917 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,649 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,687 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,119 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,754 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,047 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,175 |
| Counties of Ireland | 0 | - | 4.92 | 194,342 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,708 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,552 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,835 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,449 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,447 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,989 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,981 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,861 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,157 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,613 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 399,773 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,062 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,355 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,979 |
| Kings of France Quiz | 0 | - | 4.20 | 32,659 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,744 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,450 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,466 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,236 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,156 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,289 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,056 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,728 |
| British Monopoly Board | 0 | - | 4.52 | 41,125 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,277 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,039 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,524 |
| Countries in World War I | 0 | - | 4.88 | 227,668 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,679 |
| French History A-Z | 0 | - | 4.23 | 24,492 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,097 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,045 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,618 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,099 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,074 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,911 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,215 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,312 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,273 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,237,699 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,924 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,596 |
| The Only European Country ... | 0 | - | 4.91 | 215,640 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,564 |
| History of Russia Quiz | 0 | - | 4.49 | 31,865 |
| Germany A-Z | 0 | - | 4.56 | 62,513 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,806 |
| History of Germany | 0 | - | 4.39 | 52,753 |
| Ancient Greek Words | 0 | - | 4.93 | 111,230 |
| History of Italy | 0 | - | 4.55 | 31,920 |
| Italian History A-Z | 0 | - | 4.21 | 17,645 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,687 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,937 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,598 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,141 |
| Spanish History A-Z | 0 | - | 4.37 | 19,246 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,046 |
| Counties of England | 0 | - | 4.97 | 793,808 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,771 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,550 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,493 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 96,852 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,302 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,845 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,579 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,837 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,124 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,888 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,732 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,752 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,882 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,723 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,043 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,379 |
| European Countries with One Border | 0 | - | 4.97 | 182,339 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,175 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 77,128 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,878 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,613 |
| Slavic Countries | 0 | - | 4.96 | 111,381 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,858 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,635 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,987 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 67,003 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,099 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,322 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,179 |
| Regions of Italy | 0 | - | 4.92 | 75,400 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,452 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,448 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,906 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,191 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,471 |
| British Geography A-Z | 0 | - | 4.42 | 19,482 |
| Animals in British History | 0 | - | 4.44 | 25,959 |
| Champions League Winners | 0 | - | 4.92 | 1,002,506 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,721 |
| Countries in World War II | 0 | - | 4.54 | 909,758 |
| Battle to Country | 0 | - | 4.91 | 53,047 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,493 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,915 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,954 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,601 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,751 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,356 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,354 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,029 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,458 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,155 |
| Russia Country Quiz | 0 | - | 4.85 | 114,162 |
| Countries That Border Russia | 0 | - | 4.98 | 460,774 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,172 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,250 |
| History of Austria | 0 | - | 4.70 | 17,822 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,252 |
| Departments of France | 0 | - | 4.93 | 53,589 |
| Geography of the French Empire | 0 | - | 4.45 | 27,013 |
| The French Revolution | 0 | - | 4.46 | 23,885 |
| History of France | 0 | - | 4.59 | 56,736 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,774 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,900 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,862 |
| Italy Country Quiz | 0 | - | 4.82 | 122,856 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,974 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,687 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,488 |
| Byzantine History | 0 | - | 4.91 | 28,735 |
| The Vikings! | 0 | - | 4.46 | 28,306 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,729 |
| Finland Country Quiz | 0 | - | 4.50 | 59,453 |
| Norway Country Quiz | 0 | - | 4.44 | 77,092 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,036 |
| The Portuguese Empire | 0 | - | 4.58 | 12,041 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,573 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,221 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,291 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,070 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,289 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,216 |
| Geography of the British Empire | 0 | - | 4.48 | 39,616 |
| Medieval English History | 0 | - | 4.53 | 43,434 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,646 |
| England or Wales? | 0 | - | 4.94 | 45,549 |
