| Name the English Monarchs | 0 | - | 4.91 | 507,651 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,354 |
| Name that Greek Letter | 0 | - | 4.93 | 325,404 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,531 |
| The Trojan War | 0 | - | 4.83 | 40,120 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,355 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,729 |
| Roman Emperors | 0 | - | 4.95 | 121,518 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,011 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,045 |
| Monarchies of Europe | 0 | - | 4.90 | 99,085 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,103 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,370 |
| German History A-Z | 0 | - | 4.49 | 24,956 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,289 |
| English Royal Consorts | 0 | - | 4.38 | 37,574 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,559 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,695 |
| British History A-Z #1 | 0 | - | 4.45 | 47,362 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,239 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 36,035 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,645 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,249 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,093 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,081 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,787 |
| States of Germany Map Quiz | 0 | - | 4.92 | 134,045 |
| States of Germany | 0 | - | 4.95 | 155,046 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,856 |
| Countries Italy Declared War On | 0 | - | 4.77 | 49,868 |
| Monarchies of Asia | 0 | - | 4.97 | 71,646 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,138 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,036 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,493 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,395 |
| Countries Bordering France | 0 | - | 4.83 | 405,496 |
| Germany Country Quiz | 0 | - | 4.82 | 159,150 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,670 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,543 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,909 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,416 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,282 |
| Roman Names for Places | 0 | - | 4.62 | 58,813 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,904 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,180 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,184 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,577 |
| The Reign of Queen Victoria | 0 | - | 4.34 | 23,577 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,090 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,130 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,331 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,321 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,080 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,252 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,596 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,677 |
| Counties of Ireland | 0 | - | 4.92 | 197,783 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,400 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,781 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,850 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,466 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,071 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,554 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,741 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,459 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,452 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 408,378 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,564 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,841 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,847 |
| Kings of France Quiz | 0 | - | 4.22 | 32,975 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 39,035 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,581 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,598 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,332 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,278 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,346 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,039 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,462 |
| British Monopoly Board | 0 | - | 4.52 | 41,300 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,232 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,670 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,847 |
| Countries in World War I | 0 | - | 4.88 | 229,526 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,695 |
| French History A-Z | 0 | - | 4.27 | 25,212 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,713 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,201 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,321 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,339 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,364 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,115 |
| British History A-Z #2 | 0 | - | 4.28 | 12,064 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,883 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 143,933 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,367 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,466 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,731 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,601 |
| The Only European Country ... | 0 | - | 4.91 | 219,762 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,923 |
| History of Russia Quiz | 0 | - | 4.47 | 32,031 |
| Germany A-Z | 0 | - | 4.56 | 62,923 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,922 |
| History of Germany | 0 | - | 4.39 | 53,010 |
| Ancient Greek Words | 0 | - | 4.93 | 112,736 |
| History of Italy | 0 | - | 4.55 | 32,199 |
| Italian History A-Z | 0 | - | 4.16 | 17,963 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,668 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,657 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,867 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,481 |
| Spanish History A-Z | 0 | - | 4.37 | 19,543 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,978 |
| Counties of England | 0 | - | 4.97 | 804,721 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,156 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,861 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,038 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,257 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,851 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,592 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,033 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,431 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,800 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,949 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,964 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,933 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,270 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,336 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,761 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,722 |
| European Countries with One Border | 0 | - | 4.97 | 184,103 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,821 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,301 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,433 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,959 |
| Slavic Countries | 0 | - | 4.96 | 112,566 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,033 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,626 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,870 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 67,312 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,264 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,429 |
| Figures from Greek Mythology | 0 | - | 4.92 | 194,482 |
| Regions of Italy | 0 | - | 4.92 | 77,316 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,963 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,678 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,955 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,518 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,693 |
| British Geography A-Z | 0 | - | 4.42 | 19,636 |
| Animals in British History | 0 | - | 4.43 | 26,130 |
| Champions League Winners | 0 | - | 4.92 | 1,018,601 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,387 |
| Countries in World War II | 0 | - | 4.55 | 920,733 |
| Battle to Country | 0 | - | 4.91 | 54,159 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,999 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,195 |
| Canadian Prime Ministers | 0 | - | 4.64 | 58,049 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,069 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,456 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,622 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,194 |
| Russia Country Quiz | 0 | - | 4.83 | 115,508 |
| Countries That Border Russia | 0 | - | 4.98 | 465,085 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,867 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.85 | 35,673 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,019 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,048 |
| Departments of France | 0 | - | 4.93 | 55,461 |
| Geography of the French Empire | 0 | - | 4.45 | 27,242 |
| The French Revolution | 0 | - | 4.47 | 24,175 |
| History of France | 0 | - | 4.61 | 57,765 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,304 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,302 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,089 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,485 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,285 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,795 |
| Byzantine History | 0 | - | 4.91 | 29,064 |
| Byzantine Emperors | 0 | - | 4.93 | 14,672 |
| The Vikings! | 0 | - | 4.46 | 28,432 |
| Denmark Country Quiz | 0 | - | 4.78 | 76,356 |
| Finland Country Quiz | 0 | - | 4.51 | 60,107 |
| Norway Country Quiz | 0 | - | 4.45 | 77,950 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,449 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,652 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,087 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,796 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,124 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,498 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,413 |
| Geography of the British Empire | 0 | - | 4.48 | 39,890 |
| Medieval English History | 0 | - | 4.53 | 43,700 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,879 |
| England or Wales? | 0 | - | 4.94 | 46,092 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,586 |
