| Federal Subjects of Russia | 0 | - | 4.95 | 145,706 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,622 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,834 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,589 |
| Slavic Countries | 0 | - | 4.96 | 111,337 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,806 |
| Europe Map Quiz | 0 | - | 5.00 | 4,749,188 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,658 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 75,958 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,085 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,571 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,463 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,597 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,331 |
| Russia Country Quiz | 0 | - | 4.85 | 114,121 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 37,926 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 89,801 |
| Countries That Border Russia | 0 | - | 4.98 | 460,607 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,149 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,232 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,877 |
| Geography of Russia | 0 | - | 4.57 | 21,495 |
| Name the English Monarchs | 0 | - | 4.91 | 500,593 |
| Russian Inventions | 0 | - | 4.39 | 12,927 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,993 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,752 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,696 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,943 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,158 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,503 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,496 |
| The Only European Country ... | 0 | - | 4.91 | 215,470 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,490 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,169 |
| Name that Greek Letter | 0 | - | 4.93 | 322,774 |
| The Trojan War | 0 | - | 4.83 | 39,601 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,310 |
| History of Italy | 0 | - | 4.55 | 31,912 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,336 |
| Roman Emperors | 0 | - | 4.95 | 119,440 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,590 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,119 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,754 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,236,632 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,424 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,255 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,791 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,697 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,849 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,552 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,832 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,181 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,236 |
| Counties of England | 0 | - | 4.97 | 793,325 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,119 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,848 |
| Ancient Greek Words | 0 | - | 4.93 | 111,191 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,661 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,523 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,070 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,654 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,333 |
| Monarchies of Europe | 0 | - | 4.90 | 97,780 |
| European Countries with One Border | 0 | - | 4.97 | 182,252 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,106 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,747 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,278 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,064 |
| Ukraine Country Quiz | 0 | - | 4.42 | 47,543 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,267 |
| Romania Country Quiz | 0 | - | 4.63 | 53,627 |
| History of Austria | 0 | - | 4.70 | 17,815 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,944 |
| Geography of the French Empire | 0 | - | 4.45 | 27,011 |
| The French Revolution | 0 | - | 4.46 | 23,878 |
| History of France | 0 | - | 4.59 | 56,682 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,318 |
| States of Germany | 0 | - | 4.96 | 151,364 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,444 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,694 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,300 |
| Regions of Italy | 0 | - | 4.92 | 75,325 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,888 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,015 |
| The Vikings! | 0 | - | 4.46 | 28,300 |
| The Portuguese Empire | 0 | - | 4.58 | 12,037 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,355 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,804 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,419 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,282 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,179 |
| Geography of the British Empire | 0 | - | 4.48 | 39,604 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,633 |
| Champions League Winners | 0 | - | 4.92 | 1,001,840 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,428 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,712 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,592 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,111 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,922 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,293 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,203 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,070 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,170 |
| Departments of France | 0 | - | 4.93 | 53,480 |
| Countries Bordering France | 0 | - | 4.83 | 401,406 |
| Germany Country Quiz | 0 | - | 4.82 | 157,320 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,711 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,207 |
| Italy Country Quiz | 0 | - | 4.82 | 122,807 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,934 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,617 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,471 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,470 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,529 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,165 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,990 |
| England or Wales? | 0 | - | 4.94 | 45,527 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,426 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,113 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,636 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,031 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,063 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,921 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,886 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,854 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,050 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,183 |
| History of The Netherlands | 0 | - | 4.46 | 17,375 |
| Medieval English History | 0 | - | 4.53 | 43,425 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,679,294 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,198 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,164 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,969 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,173 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,209 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,600 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,636 |
| Countries that Border Poland | 0 | - | 4.99 | 171,881 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,788 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,587 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,780 |
| Montenegro Country Quiz | 0 | - | 4.60 | 23,648 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,308 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,134 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,670 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,565 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,082 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,733 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,031 |
| French History Multiple Choice | 0 | - | 4.55 | 32,966 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,660 |
| History of Germany | 0 | - | 4.39 | 52,741 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,328 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,563 |
| Counties of Ireland | 0 | - | 4.92 | 194,234 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,672 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,479 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,654 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,820 |
| Roman Names for Places | 0 | - | 4.62 | 58,098 |
| Byzantine History | 0 | - | 4.91 | 28,726 |
| History of Spain | 0 | - | 4.23 | 21,055 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,095 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,360 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,733 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,728 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,706 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,116 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,516 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,068 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,907 |
| Prime Ministers of the UK | 0 | - | 4.95 | 437,051 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,118 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,558 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 399,516 |
| Malta Country Quiz | 0 | - | 4.81 | 30,966 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,580 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,251 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 77,809 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,688 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,390 |
| Famous Russians | 0 | - | 4.16 | 23,786 |
| Word Chain - Russia | 0 | - | 4.33 | 15,730 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,331 |
| Lithuania Country Quiz | 0 | - | 4.61 | 31,501 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,000 |
| French Inventions | 0 | - | 4.08 | 13,882 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,943 |
| History of Paris | 0 | - | 4.24 | 13,632 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,934 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,809 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,095 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,076 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,203 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,251 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,020 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,709 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,228 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,202 |
| British History A-Z #1 | 0 | - | 4.45 | 46,335 |
