| Name the English Monarchs | 0 | - | 4.91 | 505,271 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,521 |
| Name that Greek Letter | 0 | - | 4.93 | 324,623 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,552 |
| The Trojan War | 0 | - | 4.83 | 39,928 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,652 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,459 |
| Roman Emperors | 0 | - | 4.95 | 120,848 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,094 |
| Countries Bordering France | 0 | - | 4.83 | 404,305 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,005 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,063 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,380 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,564 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,329 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,052 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,598 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,463 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,601 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,362 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,328 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,132 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,780 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,018 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,150 |
| Roman Names for Places | 0 | - | 4.62 | 58,599 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,901 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,868 |
| Departments of France | 0 | - | 4.93 | 54,831 |
| French History A-Z | 0 | - | 4.27 | 24,983 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,289 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,403 |
| British History A-Z #1 | 0 | - | 4.45 | 46,958 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,979 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,906 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,905 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,763 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,827 |
| History of France | 0 | - | 4.61 | 57,454 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,027 |
| Counties of Ireland | 0 | - | 4.92 | 196,778 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,150 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,012 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,496 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,755 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,704 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,877 |
| Prime Ministers of the UK | 0 | - | 4.95 | 441,272 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,944 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,165 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 403,801 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,108 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,683 |
| Geography of the French Empire | 0 | - | 4.45 | 27,193 |
| The French Revolution | 0 | - | 4.47 | 24,108 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,071 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,418 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,552 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,003 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,234 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,944 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,711 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,216 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,915 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 238,010 |
| English Royal Consorts | 0 | - | 4.38 | 37,477 |
| The Vietnam War | 0 | - | 4.44 | 35,621 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,761 |
| Countries in World War I | 0 | - | 4.88 | 228,789 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,667 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 162,054 |
| Countries that Beat France | 0 | - | 4.48 | 76,208 |
| France True or False? | 0 | - | 4.44 | 40,030 |
| French History Multiple Choice | 0 | - | 4.55 | 33,171 |
| German History A-Z | 0 | - | 4.49 | 24,816 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,895 |
| Ancient Greek Words | 0 | - | 4.93 | 112,211 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,156 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,133 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,278 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,602 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,265 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,049 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,936 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 142,712 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,224 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,355 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,439 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,683 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,261 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,810 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,160 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,592 |
| The Only European Country ... | 0 | - | 4.91 | 218,276 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,126 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,804 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,108 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,074 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,174 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,909 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,626 |
| Slavic Countries | 0 | - | 4.96 | 112,157 |
| History of Russia Quiz | 0 | - | 4.47 | 31,983 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,311 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,961 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,209 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,392 |
| History of Italy | 0 | - | 4.55 | 32,105 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,962 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,778 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,375 |
| Arthurian Legend | 0 | - | 4.33 | 25,146 |
| Counties of England | 0 | - | 4.97 | 801,070 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,037 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,434 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,767 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,826 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,549 |
| 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 | 359,954 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,473 |
| The American Revolution | 0 | - | 4.52 | 54,322 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,536 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,299 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,217 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,163 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,261 |
| Monarchies of Europe | 0 | - | 4.90 | 98,611 |
| European Countries with One Border | 0 | - | 4.97 | 183,476 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,222 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,223 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,819 |
| Countries That Border Russia | 0 | - | 4.98 | 463,848 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,309 |
| France Country Quiz | 0 | - | 4.70 | 135,435 |
| French Inventions | 0 | - | 4.10 | 13,918 |
| Regions of France | 0 | - | 4.70 | 121,702 |
| France Immigration by Country | 0 | - | 4.70 | 76,821 |
| History of Paris | 0 | - | 4.24 | 13,667 |
| Kings of France Quiz | 0 | - | 4.20 | 32,874 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,509 |
| States of Germany | 0 | - | 4.95 | 153,931 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,509 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,494 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,912 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,311 |
| Regions of Italy | 0 | - | 4.92 | 76,650 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,638 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,976 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,590 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,356 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,435 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,097 |
| Geography of the British Empire | 0 | - | 4.48 | 39,812 |
| Animals in British History | 0 | - | 4.43 | 26,067 |
| British History A-Z #2 | 0 | - | 4.24 | 10,258 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,521 |
| Champions League Winners | 0 | - | 4.92 | 1,012,807 |
| Countries in World War II | 0 | - | 4.54 | 916,970 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,137 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,718,080 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,552 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,797 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,586 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,533 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,283 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,619 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,292 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,215 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,767 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,110 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,056 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,203 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,364 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,566 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,554 |
| Countries that Border Poland | 0 | - | 4.99 | 172,921 |
| Russia Country Quiz | 0 | - | 4.83 | 115,124 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,122 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,216 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,606 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,875 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,502 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,898 |
| History of Austria | 0 | - | 4.70 | 17,949 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,870 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,495 |
| Countries Two Borders Away From France | 0 | - | 4.37 | 27,756 |
| Famous French People by Picture | 0 | - | 3.70 | 27,981 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,939 |
| Germany Country Quiz | 0 | - | 4.83 | 158,552 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,881 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,539 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,883 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,393 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,166 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,999 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,001 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,860 |
| Italian History A-Z | 0 | - | 4.21 | 17,850 |
