| Name the English Monarchs | 0 | - | 4.91 | 505,487 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,785 |
| Name that Greek Letter | 0 | - | 4.93 | 324,696 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,565 |
| The Trojan War | 0 | - | 4.83 | 39,936 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,695 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,496 |
| Roman Emperors | 0 | - | 4.95 | 120,921 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,163 |
| Countries Bordering France | 0 | - | 4.83 | 404,399 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,014 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,079 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,398 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,585 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,344 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,102 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,735 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,518 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,643 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,402 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,381 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,159 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,793 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,093 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,159 |
| Roman Names for Places | 0 | - | 4.62 | 58,617 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,911 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,882 |
| Departments of France | 0 | - | 4.93 | 54,876 |
| French History A-Z | 0 | - | 4.27 | 25,040 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,366 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,417 |
| British History A-Z #1 | 0 | - | 4.45 | 47,109 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,004 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,935 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,147 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,819 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,846 |
| History of France | 0 | - | 4.61 | 57,476 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,136 |
| Counties of Ireland | 0 | - | 4.92 | 196,863 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,172 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,099 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,522 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,828 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,729 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,003 |
| Prime Ministers of the UK | 0 | - | 4.95 | 441,468 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,962 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,190 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 403,943 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,251 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,696 |
| Geography of the French Empire | 0 | - | 4.45 | 27,198 |
| The French Revolution | 0 | - | 4.47 | 24,114 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,119 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,446 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,556 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,040 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,238 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,975 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,738 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,234 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,943 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,053 |
| English Royal Consorts | 0 | - | 4.38 | 37,489 |
| The Vietnam War | 0 | - | 4.44 | 35,624 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,807 |
| Countries in World War I | 0 | - | 4.88 | 228,856 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,764 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 162,091 |
| Countries that Beat France | 0 | - | 4.48 | 76,223 |
| France True or False? | 0 | - | 4.44 | 40,038 |
| French History Multiple Choice | 0 | - | 4.55 | 33,182 |
| German History A-Z | 0 | - | 4.49 | 24,864 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,041 |
| Ancient Greek Words | 0 | - | 4.93 | 112,264 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,157 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,150 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,286 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,630 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,278 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,054 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,951 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 142,827 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,319 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,061 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,877 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,767 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,303 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,852 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,271 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,624 |
| The Only European Country ... | 0 | - | 4.91 | 218,415 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,221 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,042 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,186 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,118 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,215 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,955 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,649 |
| Slavic Countries | 0 | - | 4.96 | 112,196 |
| History of Russia Quiz | 0 | - | 4.47 | 31,986 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,313 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,995 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,213 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,395 |
| History of Italy | 0 | - | 4.55 | 32,113 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,119 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,785 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,383 |
| Arthurian Legend | 0 | - | 4.33 | 25,158 |
| Counties of England | 0 | - | 4.97 | 801,395 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,043 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,444 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,772 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,834 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,553 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,645 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,212 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,487 |
| The American Revolution | 0 | - | 4.52 | 54,326 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,576 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,340 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,250 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,231 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,294 |
| Monarchies of Europe | 0 | - | 4.90 | 98,672 |
| European Countries with One Border | 0 | - | 4.97 | 183,528 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,272 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,302 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,966 |
| Countries That Border Russia | 0 | - | 4.98 | 463,962 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,333 |
| France Country Quiz | 0 | - | 4.70 | 135,456 |
| French Inventions | 0 | - | 4.10 | 13,918 |
| Regions of France | 0 | - | 4.70 | 121,774 |
| France Immigration by Country | 0 | - | 4.70 | 76,838 |
| History of Paris | 0 | - | 4.24 | 13,668 |
| Kings of France Quiz | 0 | - | 4.20 | 32,881 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,566 |
| States of Germany | 0 | - | 4.95 | 154,050 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,550 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,516 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,924 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,396 |
| Regions of Italy | 0 | - | 4.92 | 76,737 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,659 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,049 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,620 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,391 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,439 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,123 |
| Geography of the British Empire | 0 | - | 4.48 | 39,818 |
| Animals in British History | 0 | - | 4.43 | 26,069 |
| British History A-Z #2 | 0 | - | 4.24 | 11,052 |
| The Reign of Queen Victoria | 0 | - | 4.34 | 23,526 |
| Champions League Winners | 0 | - | 4.92 | 1,013,499 |
| Countries in World War II | 0 | - | 4.53 | 917,242 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,152 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,719,241 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,581 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,814 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,656 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,591 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,291 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,635 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,535 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,308 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,799 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,153 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,177 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,485 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,465 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,800 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,629 |
| Countries that Border Poland | 0 | - | 4.99 | 172,963 |
| Russia Country Quiz | 0 | - | 4.83 | 115,154 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,144 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,328 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,633 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,897 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,510 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,926 |
| History of Austria | 0 | - | 4.70 | 17,954 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,878 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,531 |
| Countries Two Borders Away From France | 0 | - | 4.37 | 27,760 |
| Famous French People by Picture | 0 | - | 3.70 | 27,986 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,952 |
| Germany Country Quiz | 0 | - | 4.83 | 158,592 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,914 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,545 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,888 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,415 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,177 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,008 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,035 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,885 |
| Italian History A-Z | 0 | - | 4.16 | 17,882 |
