| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,743 |
| Name that Greek Letter | 0 | - | 4.93 | 324,682 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,341 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,438 |
| Ancient Greek Words | 0 | - | 4.93 | 112,254 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,834 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,581 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,110 |
| German History A-Z | 0 | - | 4.49 | 24,860 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,999 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,150 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,095 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,713 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,509 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,637 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,393 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,558 |
| States of Germany | 0 | - | 4.95 | 154,018 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,545 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,774 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,618 |
| Germany Country Quiz | 0 | - | 4.83 | 158,578 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,346 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,085 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,286 |
| British History A-Z #1 | 0 | - | 4.45 | 47,095 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,928 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,978 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,805 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,012 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,118 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,710 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,693 |
| Name the English Monarchs | 0 | - | 4.91 | 505,445 |
| Prime Ministers of the UK | 0 | - | 4.95 | 441,435 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 403,928 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,216 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,695 |
| Which City in Europe? | 0 | - | 4.83 | 107,771 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,401 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,543 |
| The Trojan War | 0 | - | 4.83 | 39,934 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,688 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,923 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,033 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,489 |
| Roman Emperors | 0 | - | 4.95 | 120,908 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,966 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,737 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,232 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,938 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,742 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,005 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,157 |
| British Geography Quiz #1 | 0 | - | 4.55 | 54,080 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,016 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,669 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 142,806 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,298 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,952 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,752 |
| The Only European Country ... | 0 | - | 4.91 | 218,387 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,171 |
| History of Russia Quiz | 0 | - | 4.47 | 31,986 |
| Germany A-Z | 0 | - | 4.56 | 62,801 |
| History of Germany | 0 | - | 4.39 | 52,945 |
| History of Italy | 0 | - | 4.55 | 32,112 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,198 |
| Roman History by Picture | 0 | - | 4.46 | 26,552 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,414 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,784 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,381 |
| Counties of England | 0 | - | 4.97 | 801,333 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,041 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,769 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,947 |
| Premier League Relegated Teams | 0 | - | 4.81 | 127,499 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,156 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,566 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,293 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,844 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,333 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,253 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,245 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,622 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,219 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,217 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,006 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,284 |
| Monarchies of Europe | 0 | - | 4.90 | 98,663 |
| European Countries with One Border | 0 | - | 4.97 | 183,520 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,259 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,285 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,951 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,646 |
| Slavic Countries | 0 | - | 4.96 | 112,191 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,949 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,329 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,373 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,514 |
| Which City in Germany? | 0 | - | 4.50 | 137,131 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,881 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,385 |
| Regions of Italy | 0 | - | 4.92 | 76,714 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,654 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,033 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,617 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,388 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,657 |
| British Geography Quiz #3 | 0 | - | 4.56 | 31,022 |
| British History A-Z #2 | 0 | - | 4.24 | 10,975 |
| The Reign of Queen Victoria | 0 | - | 4.34 | 23,526 |
| Champions League Winners | 0 | - | 4.92 | 1,013,372 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,893 |
| European Cities by Clue | 0 | - | 4.70 | 89,141 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,640 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,580 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,150 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,472 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,443 |
| Russia Country Quiz | 0 | - | 4.83 | 115,147 |
| Countries That Border Russia | 0 | - | 4.98 | 463,939 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,628 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,508 |
| History of Austria | 0 | - | 4.70 | 17,952 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,876 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,526 |
| Departments of France | 0 | - | 4.93 | 54,869 |
| Geography of the French Empire | 0 | - | 4.45 | 27,196 |
| The French Revolution | 0 | - | 4.47 | 24,111 |
| Countries Bordering France | 0 | - | 4.83 | 404,368 |
| History of France | 0 | - | 4.61 | 57,469 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,946 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,905 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,175 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,007 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,030 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,880 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,564 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,703 |
| Byzantine History | 0 | - | 4.91 | 28,992 |
| Byzantine Emperors | 0 | - | 4.92 | 14,505 |
| The Vikings! | 0 | - | 4.46 | 28,393 |
| The Portuguese Empire | 0 | - | 4.58 | 12,095 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,330 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,604 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,472 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,438 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,116 |
| Geography of the British Empire | 0 | - | 4.48 | 39,814 |
| Medieval English History | 0 | - | 4.53 | 43,620 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,806 |
| England or Wales? | 0 | - | 4.94 | 45,898 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,665 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,577 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,340 |
| Name a Valid African Country | 0 | - | 4.98 | 154,807 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,308 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,298 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,343 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,719,064 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,574 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,337 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,812 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,290 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,632 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,791 |
| Countries that Border Poland | 0 | - | 4.99 | 172,958 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,137 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,310 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,896 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,995 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,975 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,921 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,841 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,077 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,392 |
| Countries that Beat France | 0 | - | 4.48 | 76,223 |
| France True or False? | 0 | - | 4.44 | 40,036 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.40 | 82,720 |
| Bundesliga Champions | 0 | - | 4.25 | 57,113 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 45,904 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,412 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.54 | 49,575 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,153 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,790 |
| Counties of Ireland | 0 | - | 4.92 | 196,848 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,551 |
| Italy A-Z | 0 | - | 4.49 | 58,650 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,168 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,088 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,083 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,157 |
| Roman Names for Places | 0 | - | 4.62 | 58,614 |
| History of The Netherlands | 0 | - | 4.46 | 17,529 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,560 |
| Most-Visited Countries by Swedes | 0 | - | 4.64 | 53,170 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,820 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,911 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,983 |
