| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,136 |
| Name that Greek Letter | 0 | - | 4.94 | 321,426 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,385 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,037 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,481 |
| Ancient Greek Words | 0 | - | 4.92 | 110,534 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,540 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,537 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,245 |
| German History A-Z | 0 | - | 4.49 | 24,167 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,279 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,272 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,754 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,289 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,231 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 69,981 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,899 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,554 |
| States of Germany | 0 | - | 4.96 | 149,760 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,900 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,244 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,013 |
| Germany Country Quiz | 0 | - | 4.82 | 156,395 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,661 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,077 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 36,998 |
| British History A-Z #1 | 0 | - | 4.45 | 45,735 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,038 |
| Europe Map Quiz | 0 | - | 5.00 | 4,727,111 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,841 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,484 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,021 |
| Famous Ancient Romans | 0 | - | 4.69 | 84,983 |
| Name the English Monarchs | 0 | - | 4.92 | 497,332 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,043 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 396,663 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,815 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,094 |
| Which City in Europe? | 0 | - | 4.83 | 106,544 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,761 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,370 |
| The Trojan War | 0 | - | 4.83 | 39,393 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,332 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,796 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,958 |
| Roman Emperors | 0 | - | 4.95 | 118,279 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,738 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,587 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,398 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,744 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,053 |
| Olympian Gods Quiz | 0 | - | 4.96 | 494,613 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,933 |
| British Geography Quiz #1 | 0 | - | 4.51 | 48,128 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,654 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,896 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 138,868 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,715 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,223,960 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,326 |
| The Only European Country ... | 0 | - | 4.91 | 213,471 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,309 |
| History of Russia Quiz | 0 | - | 4.49 | 31,771 |
| Germany A-Z | 0 | - | 4.56 | 62,271 |
| History of Germany | 0 | - | 4.39 | 52,586 |
| History of Italy | 0 | - | 4.55 | 31,799 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,438 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,297 |
| Roman History by Picture | 0 | - | 4.46 | 26,326 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,544 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,460 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,960 |
| Counties of England | 0 | - | 4.97 | 788,264 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,354 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,377 |
| The Reign of Queen Elizabeth II | 0 | - | 4.35 | 35,653 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,088 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,263 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,575 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,187 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,955 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,019 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,203 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,399 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,630 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,555 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,507 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,634 |
| Monarchies of Europe | 0 | - | 4.90 | 97,202 |
| European Countries with One Border | 0 | - | 4.97 | 181,446 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 177,966 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,113 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,132 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,056 |
| Slavic Countries | 0 | - | 4.96 | 110,766 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,571 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,096 |
| Regions of France Map Quiz | 0 | - | 4.97 | 142,994 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,888 |
| Which City in Germany? | 0 | - | 4.50 | 134,862 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,657 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,665 |
| Regions of Italy | 0 | - | 4.92 | 74,592 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,727 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,133 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,051 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,833 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,851 |
| British Geography Quiz #3 | 0 | - | 4.56 | 30,258 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,326 |
| Champions League Winners | 0 | - | 4.92 | 994,991 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,245 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,703 |
| Name a Valid African Country | 0 | - | 4.98 | 152,805 |
| European Cities by Clue | 0 | - | 4.70 | 88,763 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,161 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,020 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,202 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 273,961 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,897 |
| Russia Country Quiz | 0 | - | 4.85 | 113,554 |
| Countries That Border Russia | 0 | - | 4.98 | 458,518 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,788 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 34,995 |
| History of Austria | 0 | - | 4.70 | 17,734 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,045 |
| Departments of France | 0 | - | 4.93 | 52,643 |
| Geography of the French Empire | 0 | - | 4.48 | 26,911 |
| The French Revolution | 0 | - | 4.46 | 23,746 |
| Countries Bordering France | 0 | - | 4.85 | 396,015 |
| History of France | 0 | - | 4.59 | 55,871 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,608 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,054 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,738 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,746 |
| Italy Country Quiz | 0 | - | 4.82 | 122,070 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,250 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 150,977 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,905 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,341 |
| Byzantine History | 0 | - | 4.91 | 28,581 |
| The Vikings! | 0 | - | 4.45 | 28,234 |
| The Portuguese Empire | 0 | - | 4.54 | 11,980 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,866 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,500 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,097 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,153 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,693 |
| Geography of the British Empire | 0 | - | 4.48 | 39,455 |
| Medieval English History | 0 | - | 4.53 | 43,290 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,392 |
| England or Wales? | 0 | - | 4.94 | 45,277 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,270 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,927 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,002 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,375 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,648,333 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,115 |
| U.S. States by Clue #1 | 0 | - | 4.52 | 38,521 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,772 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,079 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,753 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,774 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,736 |
| Countries that Border Poland | 0 | - | 4.99 | 171,200 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,329 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,136 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,599 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,580 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,514 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,642 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,351 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,641 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,458 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,752 |
| Countries that Beat France | 0 | - | 4.49 | 75,103 |
| France True or False? | 0 | - | 4.43 | 39,759 |
| French History Multiple Choice | 0 | - | 4.55 | 32,853 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 82,273 |
| Bundesliga Champions | 0 | - | 4.23 | 55,530 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 45,009 |
| Countries that Beat Greece | 0 | - | 4.52 | 48,535 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,188 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,790 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,403 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.80 | 20,656 |
| Counties of Ireland | 0 | - | 4.92 | 192,786 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,286 |
| Italy A-Z | 0 | - | 4.49 | 57,624 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,359 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,156 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,496 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,636 |
| Roman Names for Places | 0 | - | 4.62 | 57,815 |
| History of The Netherlands | 0 | - | 4.46 | 17,297 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,118 |
| Most-Visited Countries by Swedes | 0 | - | 4.64 | 52,914 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,120 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,418 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,410 |
