| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,417 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,327 |
| Slavic Countries | 0 | - | 4.96 | 110,990 |
| History of Russia Quiz | 0 | - | 4.49 | 31,806 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,040 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,114 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,569 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,601 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,247 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,149 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,485 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,304 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,608 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,199 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,939 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,094 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,641 |
| Name the English Monarchs | 0 | - | 4.92 | 498,725 |
| Countries that Border Poland | 0 | - | 4.99 | 171,505 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,444 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,777 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,667 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,586 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,321 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,640 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,815 |
| The Only European Country ... | 0 | - | 4.91 | 214,272 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,818 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,876 |
| Name that Greek Letter | 0 | - | 4.94 | 321,943 |
| The Trojan War | 0 | - | 4.83 | 39,477 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,754 |
| History of Italy | 0 | - | 4.55 | 31,854 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,127 |
| Roman Emperors | 0 | - | 4.95 | 118,667 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,504 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,012 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,614 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,310 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,136 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,845 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,437 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,690 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,580 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,191 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,546 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 95,977 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,569 |
| Counties of England | 0 | - | 4.97 | 790,305 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,770 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 37,835 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 89,640 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,078 |
| Ancient Greek Words | 0 | - | 4.92 | 110,841 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,467 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,139 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,562 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,074 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,935 |
| Monarchies of Europe | 0 | - | 4.90 | 97,456 |
| European Countries with One Border | 0 | - | 4.97 | 181,783 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,683 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,423 |
| Geography of Russia | 0 | - | 4.57 | 21,445 |
| Russian Inventions | 0 | - | 4.39 | 12,899 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 41,922 |
| Ukraine Country Quiz | 0 | - | 4.42 | 47,384 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,100 |
| Romania Country Quiz | 0 | - | 4.63 | 53,440 |
| History of Austria | 0 | - | 4.70 | 17,772 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,385 |
| Geography of the French Empire | 0 | - | 4.45 | 26,960 |
| The French Revolution | 0 | - | 4.46 | 23,814 |
| History of France | 0 | - | 4.59 | 56,267 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,882 |
| States of Germany | 0 | - | 4.96 | 150,434 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,400 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,136 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,733 |
| Regions of Italy | 0 | - | 4.92 | 74,890 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,682 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,935 |
| The Vikings! | 0 | - | 4.46 | 28,260 |
| The Portuguese Empire | 0 | - | 4.54 | 12,004 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,581 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,456 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,147 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,219 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,925 |
| Geography of the British Empire | 0 | - | 4.48 | 39,523 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,569 |
| Champions League Winners | 0 | - | 4.92 | 997,770 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,050 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,358 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,233 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,888 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,518 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,435 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,369 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,439 |
| Russia Country Quiz | 0 | - | 4.85 | 113,775 |
| Countries That Border Russia | 0 | - | 4.98 | 459,525 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,387 |
| Departments of France | 0 | - | 4.93 | 52,986 |
| Countries Bordering France | 0 | - | 4.83 | 400,196 |
| Germany Country Quiz | 0 | - | 4.82 | 156,770 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,312 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,381 |
| Italy Country Quiz | 0 | - | 4.82 | 122,382 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,561 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,241 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,400 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,133 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,196 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,783 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,515 |
| England or Wales? | 0 | - | 4.94 | 45,389 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,734 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,740 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,611 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,318 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,845 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,820 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,811 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,799 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,278 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,035 |
| History of The Netherlands | 0 | - | 4.46 | 17,337 |
| Medieval English History | 0 | - | 4.53 | 43,345 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,661,128 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,425 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,110 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,835 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,931 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,931 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,121 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,528 |
| Poland Country Quiz | 0 | - | 4.22 | 62,789 |
| Embarrassing Chapters in Russian History | 0 | - | 3.73 | 20,248 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,870 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,481 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,704 |
| Montenegro Country Quiz | 0 | - | 4.60 | 23,571 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,246 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,862 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,552 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,449 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,864 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,593 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,870 |
| French History Multiple Choice | 0 | - | 4.55 | 32,898 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,687 |
| History of Germany | 0 | - | 4.39 | 52,660 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,008 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,478 |
| Counties of Ireland | 0 | - | 4.92 | 193,385 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,523 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,507 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,569 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,728 |
| Roman Names for Places | 0 | - | 4.62 | 57,931 |
| Byzantine History | 0 | - | 4.91 | 28,656 |
| History of Spain | 0 | - | 4.29 | 21,016 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,051 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,802 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,940 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,701 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,636 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,086 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,363 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,984 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,857 |
| Prime Ministers of the UK | 0 | - | 4.96 | 435,275 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,860 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,858 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,826 |
| Malta Country Quiz | 0 | - | 4.81 | 30,873 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,732 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 54,032 |
| European Cities Beginning with B - Click Map | 0 | - | 4.75 | 77,492 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,278 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,037 |
| Countries that Beat Russia | 0 | - | 4.84 | 82,017 |
| Lithuania Country Quiz | 0 | - | 4.60 | 31,406 |
| Estonia Country Quiz | 0 | - | 4.60 | 30,905 |
| French Inventions | 0 | - | 4.08 | 13,867 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,688 |
| History of Paris | 0 | - | 4.24 | 13,623 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,530 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,562 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,015 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,052 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,969 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,951 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,771 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,535 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,930 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,141 |
| British History A-Z #1 | 0 | - | 4.45 | 46,165 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,394 |
