| Name the English Monarchs | 0 | - | 4.91 | 507,056 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,534 |
| Name that Greek Letter | 0 | - | 4.93 | 325,151 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,496 |
| The Trojan War | 0 | - | 4.83 | 40,031 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,092 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,650 |
| Roman Emperors | 0 | - | 4.95 | 121,341 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,991 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,994 |
| Monarchies of Europe | 0 | - | 4.90 | 98,975 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,739 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,083 |
| German History A-Z | 0 | - | 4.49 | 24,929 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,923 |
| English Royal Consorts | 0 | - | 4.38 | 37,545 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,430 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,608 |
| British History A-Z #1 | 0 | - | 4.45 | 47,297 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,192 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 36,016 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,485 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,802 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,921 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,957 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,672 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,924 |
| States of Germany | 0 | - | 4.95 | 154,766 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,759 |
| Countries Italy Declared War On | 0 | - | 4.74 | 47,438 |
| Monarchies of Asia | 0 | - | 4.97 | 71,567 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,006 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,895 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,136 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,116 |
| Countries Bordering France | 0 | - | 4.83 | 405,173 |
| Germany Country Quiz | 0 | - | 4.82 | 158,968 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,518 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,392 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,877 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,345 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,246 |
| Roman Names for Places | 0 | - | 4.62 | 58,754 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,889 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,130 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,112 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,570 |
| The Reign of Queen Victoria | 0 | - | 4.34 | 23,564 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,908 |
| Europe Map Quiz | 0 | - | 5.00 | 4,791,214 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,196 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,118 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,000 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,198 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,537 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,643 |
| Counties of Ireland | 0 | - | 4.92 | 197,535 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,323 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,542 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,748 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,278 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,467 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,959 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,520 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,544 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,109 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,362 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 407,622 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,195 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,783 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,755 |
| Kings of France Quiz | 0 | - | 4.21 | 32,950 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 39,014 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,568 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,593 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,242 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,272 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,230 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,945 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,400 |
| British Monopoly Board | 0 | - | 4.52 | 41,281 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,153 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,528 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,329 |
| Countries in World War I | 0 | - | 4.88 | 229,340 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,450 |
| French History A-Z | 0 | - | 4.27 | 25,168 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,153 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,190 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,272 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,326 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,342 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,100 |
| British History A-Z #2 | 0 | - | 4.28 | 11,967 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,818 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 143,651 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,070 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,260,102 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,643 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,373 |
| The Only European Country ... | 0 | - | 4.91 | 219,374 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,722 |
| History of Russia Quiz | 0 | - | 4.47 | 32,012 |
| Germany A-Z | 0 | - | 4.56 | 62,885 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,913 |
| History of Germany | 0 | - | 4.39 | 52,991 |
| Ancient Greek Words | 0 | - | 4.93 | 112,592 |
| History of Italy | 0 | - | 4.55 | 32,167 |
| Italian History A-Z | 0 | - | 4.16 | 17,948 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,126 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,564 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,838 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,454 |
| Spanish History A-Z | 0 | - | 4.37 | 19,524 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,882 |
| Counties of England | 0 | - | 4.97 | 803,734 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,122 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,833 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,255 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,062 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,703 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,411 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,931 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,090 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,657 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,865 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,734 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,846 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,218 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,998 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,244 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,567 |
| European Countries with One Border | 0 | - | 4.97 | 183,944 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,661 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,015 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,293 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,852 |
| Slavic Countries | 0 | - | 4.96 | 112,463 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,758 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,538 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,753 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 67,280 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,251 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,422 |
| Figures from Greek Mythology | 0 | - | 4.91 | 189,061 |
| Regions of Italy | 0 | - | 4.92 | 77,196 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,862 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,480 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,843 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,425 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,583 |
| British Geography A-Z | 0 | - | 4.42 | 19,623 |
| Animals in British History | 0 | - | 4.43 | 26,111 |
| Champions League Winners | 0 | - | 4.92 | 1,017,221 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,325 |
| Countries in World War II | 0 | - | 4.53 | 919,781 |
| Battle to Country | 0 | - | 4.91 | 54,065 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,909 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,132 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,970 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,890 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,175 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,061 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,030 |
| Russia Country Quiz | 0 | - | 4.83 | 115,390 |
| Countries That Border Russia | 0 | - | 4.98 | 464,727 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,800 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,613 |
| History of Austria | 0 | - | 4.70 | 17,986 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,973 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,912 |
| Departments of France | 0 | - | 4.93 | 55,296 |
| Geography of the French Empire | 0 | - | 4.45 | 27,224 |
| The French Revolution | 0 | - | 4.47 | 24,158 |
| History of France | 0 | - | 4.61 | 57,682 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,162 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,264 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,061 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,994 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,345 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,150 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,760 |
| Byzantine History | 0 | - | 4.91 | 29,033 |
| Byzantine Emperors | 0 | - | 4.93 | 14,637 |
| The Vikings! | 0 | - | 4.46 | 28,419 |
| Denmark Country Quiz | 0 | - | 4.78 | 76,309 |
| Finland Country Quiz | 0 | - | 4.51 | 60,052 |
| Norway Country Quiz | 0 | - | 4.45 | 77,878 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,420 |
| The Portuguese Empire | 0 | - | 4.58 | 12,116 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,559 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,972 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,753 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,957 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,480 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,328 |
| Geography of the British Empire | 0 | - | 4.48 | 39,862 |
| Medieval English History | 0 | - | 4.53 | 43,673 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,848 |
| England or Wales? | 0 | - | 4.94 | 45,998 |
