| Federal Subjects of Russia | 0 | - | 4.95 | 148,844 |
| History of Russia Quiz | 0 | - | 4.47 | 31,983 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,126 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,914 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,629 |
| Slavic Countries | 0 | - | 4.96 | 112,164 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,332 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,064 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,617 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,468 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,610 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,368 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,313 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,106 |
| Countries That Border Russia | 0 | - | 4.98 | 463,858 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,685 |
| Russia Country Quiz | 0 | - | 4.83 | 115,126 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,128 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,244 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,612 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,503 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,123 |
| Geography of Russia | 0 | - | 4.57 | 21,574 |
| Name the English Monarchs | 0 | - | 4.91 | 505,304 |
| Russian Inventions | 0 | - | 4.39 | 13,003 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,881 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,987 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,967 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,562 |
| Name that Greek Letter | 0 | - | 4.93 | 324,632 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,708 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,231 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,679 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,699 |
| The Only European Country ... | 0 | - | 4.91 | 218,298 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,116 |
| The Trojan War | 0 | - | 4.83 | 39,929 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,658 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,466 |
| Roman Emperors | 0 | - | 4.95 | 120,862 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,687 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,105 |
| History of Italy | 0 | - | 4.55 | 32,106 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,781 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,377 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,038 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,464 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,477 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,268 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,817 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,177 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,596 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,135 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,857 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,915 |
| Ancient Greek Words | 0 | - | 4.93 | 112,217 |
| Counties of England | 0 | - | 4.97 | 801,119 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,990 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,543 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,306 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,220 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,177 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,270 |
| Monarchies of Europe | 0 | - | 4.90 | 98,617 |
| European Countries with One Border | 0 | - | 4.97 | 183,485 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,228 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,231 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,336 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,510 |
| States of Germany | 0 | - | 4.95 | 153,951 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,514 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,964 |
| Regions of Italy | 0 | - | 4.92 | 76,663 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,973 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,405 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,642 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,985 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,594 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,361 |
| Embarrassing Chapters in British History | 0 | - | 4.30 | 32,341 |
| Champions League Winners | 0 | - | 4.92 | 1,012,876 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,383 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,918 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,680 |
| Romania Country Quiz | 0 | - | 4.63 | 54,027 |
| History of Austria | 0 | - | 4.70 | 17,949 |
| Geography of the French Empire | 0 | - | 4.45 | 27,193 |
| The French Revolution | 0 | - | 4.47 | 24,108 |
| Countries Bordering France | 0 | - | 4.83 | 404,314 |
| History of France | 0 | - | 4.61 | 57,457 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,539 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,297 |
| The Vikings! | 0 | - | 4.46 | 28,389 |
| The Portuguese Empire | 0 | - | 4.58 | 12,095 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,435 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,103 |
| Geography of the British Empire | 0 | - | 4.48 | 39,812 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,805 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,591 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,538 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,071 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,291 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,383 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,622 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,565 |
| Lithuania Country Quiz | 0 | - | 4.63 | 31,746 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,152 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,870 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,497 |
| Departments of France | 0 | - | 4.93 | 54,841 |
| Germany Country Quiz | 0 | - | 4.83 | 158,555 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,886 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,169 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,999 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,914 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,325 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,007 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,862 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,553 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,695 |
| History of The Netherlands | 0 | - | 4.46 | 17,526 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,303 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,570 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,442 |
| Medieval English History | 0 | - | 4.53 | 43,617 |
| England or Wales? | 0 | - | 4.94 | 45,887 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,596 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,325 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,305 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,718,233 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,556 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,172 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,668 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,283 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,699 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,622 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,240 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,772 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,774 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,552 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,865 |
| Countries that Border Poland | 0 | - | 4.99 | 172,925 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,236 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,829 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 31,022 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,812 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,442 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,901 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,005 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,829 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,065 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,381 |
| French History Multiple Choice | 0 | - | 4.55 | 33,172 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,042 |
| History of Germany | 0 | - | 4.39 | 52,942 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,136 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,782 |
| Counties of Ireland | 0 | - | 4.92 | 196,802 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,155 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,026 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,031 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,151 |
| Roman Names for Places | 0 | - | 4.62 | 58,602 |
| Byzantine History | 0 | - | 4.91 | 28,985 |
| Byzantine Emperors | 0 | - | 4.92 | 14,493 |
| History of Spain | 0 | - | 4.23 | 21,145 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,279 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,765 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,889 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,808 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,903 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,212 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,869 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,266 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,050 |
| Prime Ministers of the UK | 0 | - | 4.95 | 441,302 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,948 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,168 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 403,821 |
| Malta Country Quiz | 0 | - | 4.81 | 31,197 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,600 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,616 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,849 |
| Famous Russians | 0 | - | 4.16 | 23,890 |
| Word Chain - Russia | 0 | - | 4.33 | 15,782 |
| Russian History A-Z | 0 | - | 4.35 | 32,073 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,370 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,212 |
| French Inventions | 0 | - | 4.10 | 13,918 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,568 |
| History of Paris | 0 | - | 4.24 | 13,667 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,078 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,427 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,209 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,145 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,007 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,944 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,135 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,716 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,219 |
