| Federal Subjects of Russia | 0 | - | 4.95 | 145,714 |
| 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 | 4,749,228 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,660 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 75,959 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,086 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,573 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,463 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,599 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,334 |
| Russia Country Quiz | 0 | - | 4.85 | 114,124 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 37,926 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 89,802 |
| Countries That Border Russia | 0 | - | 4.98 | 460,616 |
| 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 | 426,881 |
| Geography of Russia | 0 | - | 4.57 | 21,495 |
| Name the English Monarchs | 0 | - | 4.91 | 500,599 |
| Russian Inventions | 0 | - | 4.39 | 12,927 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,993 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,754 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,696 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,946 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,161 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,517 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,500 |
| The Only European Country ... | 0 | - | 4.91 | 215,479 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,493 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,180 |
| Name that Greek Letter | 0 | - | 4.93 | 322,778 |
| The Trojan War | 0 | - | 4.83 | 39,603 |
| 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 | 84,337 |
| Roman Emperors | 0 | - | 4.95 | 119,441 |
| 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 | 59,755 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,236,659 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,441 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,255 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,794 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,700 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,853 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,556 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,837 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,181 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,240 |
| Counties of England | 0 | - | 4.97 | 793,350 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,131 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,858 |
| Ancient Greek Words | 0 | - | 4.93 | 111,192 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,661 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,525 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,073 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,658 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,337 |
| Monarchies of Europe | 0 | - | 4.90 | 97,783 |
| European Countries with One Border | 0 | - | 4.97 | 182,256 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,110 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,748 |
| 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 | 53,628 |
| 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 | 56,687 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,318 |
| States of Germany | 0 | - | 4.96 | 151,367 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,444 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,696 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,301 |
| Regions of Italy | 0 | - | 4.92 | 75,327 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,888 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,035 |
| The Vikings! | 0 | - | 4.46 | 28,300 |
| The Portuguese Empire | 0 | - | 4.58 | 12,037 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,356 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,805 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,422 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,282 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,180 |
| Geography of the British Empire | 0 | - | 4.48 | 39,604 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,634 |
| Champions League Winners | 0 | - | 4.92 | 1,001,865 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,430 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,713 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,595 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,114 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,929 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,299 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,212 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,076 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,178 |
| Departments of France | 0 | - | 4.93 | 53,485 |
| Countries Bordering France | 0 | - | 4.83 | 401,411 |
| Germany Country Quiz | 0 | - | 4.82 | 157,320 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,719 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,214 |
| Italy Country Quiz | 0 | - | 4.82 | 122,808 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,935 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,628 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,472 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,474 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,536 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,166 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,991 |
| England or Wales? | 0 | - | 4.94 | 45,527 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,434 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,116 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,636 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,037 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,064 |
| 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 | 186,056 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,188 |
| History of The Netherlands | 0 | - | 4.46 | 17,375 |
| Medieval English History | 0 | - | 4.53 | 43,425 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,679,368 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,202 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,166 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,970 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,175 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,210 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,604 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,636 |
| Countries that Border Poland | 0 | - | 4.99 | 171,883 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,793 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,587 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,780 |
| Montenegro Country Quiz | 0 | - | 4.60 | 23,649 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,308 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,135 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,670 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,565 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,084 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,734 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,032 |
| French History Multiple Choice | 0 | - | 4.55 | 32,966 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,665 |
| History of Germany | 0 | - | 4.39 | 52,741 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,330 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,564 |
| Counties of Ireland | 0 | - | 4.92 | 194,235 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,673 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,480 |
| 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 | 58,099 |
| Byzantine History | 0 | - | 4.91 | 28,727 |
| 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 | 129,735 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,728 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,707 |
| 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 | 437,063 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,119 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,561 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 399,524 |
| Malta Country Quiz | 0 | - | 4.81 | 30,966 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,586 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,251 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 77,812 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,691 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,392 |
| Famous Russians | 0 | - | 4.16 | 23,786 |
| Word Chain - Russia | 0 | - | 4.33 | 15,730 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,332 |
| Lithuania Country Quiz | 0 | - | 4.61 | 31,502 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,001 |
| 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 | 105,936 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,814 |
| 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 | 54,205 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,253 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,026 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,710 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,232 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,202 |
| British History A-Z #1 | 0 | - | 4.45 | 46,335 |
