| Name the English Monarchs | 0 | - | 4.91 | 500,852 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,432 |
| Name that Greek Letter | 0 | - | 4.93 | 322,863 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,829 |
| The Trojan War | 0 | - | 4.83 | 39,615 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,383 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,359 |
| Roman Emperors | 0 | - | 4.95 | 119,512 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,712 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,533 |
| Monarchies of Europe | 0 | - | 4.90 | 97,828 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,313 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,347 |
| German History A-Z | 0 | - | 4.49 | 24,551 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,788 |
| English Royal Consorts | 0 | - | 4.37 | 37,296 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,994 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,847 |
| British History A-Z #1 | 0 | - | 4.45 | 46,353 |
| 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 | 149,720 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 76,002 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,141 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,606 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,495 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,386 |
| States of Germany | 0 | - | 4.96 | 151,528 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,763 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,198 |
| Monarchies of Asia | 0 | - | 4.97 | 70,908 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,751 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,642 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,240 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,418 |
| Countries Bordering France | 0 | - | 4.83 | 401,563 |
| Germany Country Quiz | 0 | - | 4.82 | 157,393 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,369 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,369 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,578 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,665 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,828 |
| Roman Names for Places | 0 | - | 4.62 | 58,124 |
| 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 | 78,410 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,474 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,401 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,308 |
| Europe Map Quiz | 0 | - | 5.00 | 4,750,803 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,646 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,687 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,117 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,753 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,047 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,170 |
| Counties of Ireland | 0 | - | 4.92 | 194,340 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,707 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,543 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,833 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,440 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,445 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,986 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,978 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,852 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,156 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,611 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 399,756 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,051 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,355 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,975 |
| Kings of France Quiz | 0 | - | 4.20 | 32,658 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,743 |
| 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 | 54,235 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,155 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,287 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,053 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,726 |
| British Monopoly Board | 0 | - | 4.52 | 41,125 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,275 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,037 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,519 |
| Countries in World War I | 0 | - | 4.88 | 227,662 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,674 |
| French History A-Z | 0 | - | 4.23 | 24,490 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,091 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,044 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,614 |
| 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 | 52,213 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,302 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,267 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,237,641 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,901 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,595 |
| The Only European Country ... | 0 | - | 4.91 | 215,636 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,559 |
| History of Russia Quiz | 0 | - | 4.49 | 31,865 |
| Germany A-Z | 0 | - | 4.56 | 62,512 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,806 |
| History of Germany | 0 | - | 4.39 | 52,752 |
| Ancient Greek Words | 0 | - | 4.93 | 111,228 |
| History of Italy | 0 | - | 4.55 | 31,920 |
| Italian History A-Z | 0 | - | 4.21 | 17,645 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,674 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,935 |
| 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 | 108,044 |
| Counties of England | 0 | - | 4.97 | 793,791 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,770 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,550 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,465 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 96,837 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,298 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,845 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,577 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,831 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,122 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,883 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,727 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,745 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,880 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,715 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,015 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,375 |
| European Countries with One Border | 0 | - | 4.97 | 182,336 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,172 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 77,081 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,875 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,613 |
| Slavic Countries | 0 | - | 4.96 | 111,380 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,851 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,632 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,983 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 67,002 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,098 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,322 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,176 |
| Regions of Italy | 0 | - | 4.92 | 75,395 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,433 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,438 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,900 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,188 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,467 |
| British Geography A-Z | 0 | - | 4.42 | 19,482 |
| Animals in British History | 0 | - | 4.44 | 25,958 |
| Champions League Winners | 0 | - | 4.92 | 1,002,466 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,720 |
| Countries in World War II | 0 | - | 4.54 | 909,735 |
| Battle to Country | 0 | - | 4.91 | 53,043 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,491 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,909 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,952 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,599 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,748 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,353 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,350 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,027 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,439 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,149 |
| Russia Country Quiz | 0 | - | 4.85 | 114,162 |
| Countries That Border Russia | 0 | - | 4.98 | 460,769 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,170 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,248 |
| History of Austria | 0 | - | 4.70 | 17,822 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,251 |
| Departments of France | 0 | - | 4.93 | 53,567 |
| Geography of the French Empire | 0 | - | 4.45 | 27,013 |
| The French Revolution | 0 | - | 4.46 | 23,884 |
| History of France | 0 | - | 4.59 | 56,733 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,771 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,898 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,862 |
| Italy Country Quiz | 0 | - | 4.82 | 122,853 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,972 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,685 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,487 |
| Byzantine History | 0 | - | 4.91 | 28,734 |
| The Vikings! | 0 | - | 4.46 | 28,306 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,726 |
| Finland Country Quiz | 0 | - | 4.50 | 59,451 |
| Norway Country Quiz | 0 | - | 4.44 | 77,090 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,033 |
| The Portuguese Empire | 0 | - | 4.58 | 12,041 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,571 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,220 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,291 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,066 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,289 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,213 |
| Geography of the British Empire | 0 | - | 4.48 | 39,616 |
| Medieval English History | 0 | - | 4.53 | 43,432 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,645 |
| England or Wales? | 0 | - | 4.94 | 45,548 |
