| Federal Subjects of Russia | 0 | - | 4.94 | 145,359 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,576 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,757 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,536 |
| Slavic Countries | 0 | - | 4.96 | 111,273 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,766 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,606 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,558 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 75,878 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,983 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,504 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,390 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,545 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,297 |
| Russia Country Quiz | 0 | - | 4.85 | 114,055 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 37,907 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 89,758 |
| Countries That Border Russia | 0 | - | 4.98 | 460,389 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,109 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,199 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,606 |
| Geography of Russia | 0 | - | 4.57 | 21,484 |
| Name the English Monarchs | 0 | - | 4.92 | 500,179 |
| Russian Inventions | 0 | - | 4.39 | 12,920 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,943 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,725 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,673 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,864 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,986 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,267 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,349 |
| The Only European Country ... | 0 | - | 4.91 | 215,209 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,359 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,708 |
| Name that Greek Letter | 0 | - | 4.93 | 322,585 |
| The Trojan War | 0 | - | 4.83 | 39,575 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,192 |
| History of Italy | 0 | - | 4.55 | 31,907 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,294 |
| Roman Emperors | 0 | - | 4.95 | 119,264 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,570 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,101 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,725 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,978 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,625 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,172 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,720 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,485 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,787 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,386 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,544 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,152 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,116 |
| Counties of England | 0 | - | 4.97 | 792,703 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,628 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,486 |
| Ancient Greek Words | 0 | - | 4.93 | 111,122 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,628 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,433 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,950 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,525 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,258 |
| Monarchies of Europe | 0 | - | 4.90 | 97,710 |
| European Countries with One Border | 0 | - | 4.97 | 182,147 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,008 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,707 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,268 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,036 |
| Ukraine Country Quiz | 0 | - | 4.42 | 47,509 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,232 |
| Romania Country Quiz | 0 | - | 4.63 | 53,588 |
| History of Austria | 0 | - | 4.70 | 17,807 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,804 |
| Geography of the French Empire | 0 | - | 4.45 | 26,999 |
| The French Revolution | 0 | - | 4.46 | 23,866 |
| History of France | 0 | - | 4.59 | 56,644 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,181 |
| States of Germany | 0 | - | 4.96 | 151,135 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,553 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,194 |
| Regions of Italy | 0 | - | 4.92 | 75,231 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,842 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 49,051 |
| The Vikings! | 0 | - | 4.46 | 28,290 |
| The Portuguese Empire | 0 | - | 4.58 | 12,030 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,204 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,758 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,361 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,269 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,109 |
| Geography of the British Empire | 0 | - | 4.48 | 39,587 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,622 |
| Champions League Winners | 0 | - | 4.92 | 1,000,911 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,336 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,655 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,524 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,845 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,767 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,131 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,807 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,947 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,845 |
| Departments of France | 0 | - | 4.93 | 53,335 |
| Countries Bordering France | 0 | - | 4.83 | 401,182 |
| Germany Country Quiz | 0 | - | 4.82 | 157,209 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,579 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,039 |
| Italy Country Quiz | 0 | - | 4.82 | 122,702 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,855 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,488 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,446 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,195 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,447 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,061 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,890 |
| England or Wales? | 0 | - | 4.94 | 45,497 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,291 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,854 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,627 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,890 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,005 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,895 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,871 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,844 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,884 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,157 |
| History of The Netherlands | 0 | - | 4.46 | 17,364 |
| Medieval English History | 0 | - | 4.53 | 43,406 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,674,948 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,812 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,155 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,937 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,112 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,146 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,500 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,611 |
| Countries that Border Poland | 0 | - | 4.99 | 171,805 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,588 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,559 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,765 |
| Montenegro Country Quiz | 0 | - | 4.60 | 23,625 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,291 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,080 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,640 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,538 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,038 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,706 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,982 |
| French History Multiple Choice | 0 | - | 4.55 | 32,952 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,456 |
| History of Germany | 0 | - | 4.39 | 52,727 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,266 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,541 |
| Counties of Ireland | 0 | - | 4.92 | 194,065 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,642 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,926 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,632 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,795 |
| Roman Names for Places | 0 | - | 4.62 | 58,064 |
| Byzantine History | 0 | - | 4.91 | 28,708 |
| History of Spain | 0 | - | 4.29 | 21,045 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,084 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,248 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,517 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,726 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,690 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,113 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,473 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,053 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,898 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,707 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,068 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,020 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 399,152 |
| Malta Country Quiz | 0 | - | 4.81 | 30,942 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,427 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,209 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 77,740 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,599 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,122 |
| Famous Russians | 0 | - | 4.16 | 23,774 |
| Word Chain - Russia | 0 | - | 4.33 | 15,725 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,267 |
| Lithuania Country Quiz | 0 | - | 4.61 | 31,486 |
| Estonia Country Quiz | 0 | - | 4.60 | 30,977 |
| French Inventions | 0 | - | 4.08 | 13,877 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,886 |
| History of Paris | 0 | - | 4.24 | 13,629 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,837 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,773 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,082 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,070 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,137 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,166 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,959 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,669 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,147 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,185 |
| British History A-Z #1 | 0 | - | 4.45 | 46,306 |
