| Federal Subjects of Russia | 0 | - | 4.94 | 145,018 |
| Russia Country Quiz | 0 | - | 4.85 | 113,971 |
| Countries That Border Russia | 0 | - | 4.98 | 460,101 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,527 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,709 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,426 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,770 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,878 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,420 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,299 |
| History of Russia Quiz | 0 | - | 4.49 | 31,831 |
| Europe Map Quiz | 0 | - | 5.00 | 4,742,722 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,268 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 37,880 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 89,706 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,037 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,158 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,264 |
| Name the English Monarchs | 0 | - | 4.92 | 499,666 |
| Countries that Border Poland | 0 | - | 4.99 | 171,710 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,893 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,707 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,637 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,007 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,087 |
| Name that Greek Letter | 0 | - | 4.93 | 322,339 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,593 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,294 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,771 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,737 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,044 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,165 |
| The Only European Country ... | 0 | - | 4.91 | 214,877 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,159 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,190 |
| The Trojan War | 0 | - | 4.83 | 39,536 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,046 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,230 |
| Roman Emperors | 0 | - | 4.95 | 119,053 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,098 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,947 |
| History of Italy | 0 | - | 4.55 | 31,881 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,547 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,070 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,691 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,737 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,233,073 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,715 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,049 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,630 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,171 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,704 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,053 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,180 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,637 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,445 |
| Slavic Countries | 0 | - | 4.96 | 111,163 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,944 |
| Ancient Greek Words | 0 | - | 4.93 | 111,024 |
| Counties of England | 0 | - | 4.97 | 791,884 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,095 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,584 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,283 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,813 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,374 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,154 |
| Monarchies of Europe | 0 | - | 4.90 | 97,624 |
| European Countries with One Border | 0 | - | 4.97 | 182,022 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,895 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,624 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,461 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,648 |
| French Inventions | 0 | - | 4.08 | 13,874 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,084 |
| States of Germany | 0 | - | 4.96 | 150,892 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,292 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,017 |
| Regions of Italy | 0 | - | 4.92 | 75,078 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,849 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,793 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,049 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,031 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,658 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,271 |
| Champions League Winners | 0 | - | 4.92 | 999,922 |
| Albania Country Quiz | 0 | - | 4.54 | 38,802 |
| Geography of Russia | 0 | - | 4.57 | 21,464 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 41,994 |
| Ukraine Country Quiz | 0 | - | 4.42 | 47,465 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,181 |
| Romania Country Quiz | 0 | - | 4.63 | 53,534 |
| Serbia Country Quiz | 0 | - | 4.44 | 34,873 |
| History of Austria | 0 | - | 4.70 | 17,792 |
| Geography of the French Empire | 0 | - | 4.45 | 26,984 |
| The French Revolution | 0 | - | 4.46 | 23,849 |
| Countries Bordering France | 0 | - | 4.83 | 400,869 |
| History of France | 0 | - | 4.59 | 56,508 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,421 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,812 |
| The Vikings! | 0 | - | 4.46 | 28,279 |
| The Portuguese Empire | 0 | - | 4.58 | 12,022 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,255 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,051 |
| Geography of the British Empire | 0 | - | 4.48 | 39,566 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,605 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,232 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,542 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,415 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,530 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,551 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,920 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,284 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,764 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,868 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,607 |
| Departments of France | 0 | - | 4.93 | 53,170 |
| Germany Country Quiz | 0 | - | 4.82 | 157,058 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,481 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,854 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,825 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,674 |
| Italy Country Quiz | 0 | - | 4.82 | 122,588 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,742 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,388 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,113 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,419 |
| History of The Netherlands | 0 | - | 4.46 | 17,352 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,345 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,958 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,735 |
| Medieval English History | 0 | - | 4.53 | 43,378 |
| England or Wales? | 0 | - | 4.94 | 45,460 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,102 |
| Chinese Inventions | 0 | - | 4.30 | 33,747 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,670,347 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,652 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,140 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,395 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,901 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,622 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,050 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,706 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,073 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,383 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,948 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,573 |
| Poland Country Quiz | 0 | - | 4.22 | 62,916 |
| Russian History A-Z | 0 | - | 4.38 | 31,341 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,346 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,518 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,745 |
| Montenegro Country Quiz | 0 | - | 4.60 | 23,603 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,276 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,612 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,505 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,987 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,674 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,947 |
| French History Multiple Choice | 0 | - | 4.55 | 32,932 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,200 |
| History of Germany | 0 | - | 4.39 | 52,702 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,186 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,518 |
| Counties of Ireland | 0 | - | 4.92 | 193,818 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,608 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,798 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,606 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,760 |
| Roman Names for Places | 0 | - | 4.62 | 58,019 |
| Byzantine History | 0 | - | 4.91 | 28,680 |
| History of Spain | 0 | - | 4.29 | 21,036 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,069 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,124 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,299 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,718 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,673 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,105 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,438 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,028 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,884 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,250 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,998 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,971 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,702 |
| Malta Country Quiz | 0 | - | 4.81 | 30,911 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,228 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 54,148 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 77,668 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,499 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,708 |
| Famous Russians | 0 | - | 4.16 | 23,765 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,262 |
| Lithuania Country Quiz | 0 | - | 4.60 | 31,454 |
| Estonia Country Quiz | 0 | - | 4.60 | 30,951 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,822 |
| History of Paris | 0 | - | 4.24 | 13,628 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,754 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,687 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,065 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,307 |
