| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,102 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,721 |
| Slavic Countries | 0 | - | 4.96 | 112,308 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,406 |
| History of Russia Quiz | 0 | - | 4.47 | 31,998 |
| Europe Map Quiz | 0 | - | 5.00 | 4,785,214 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,277 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,174 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,670 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,770 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,507 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,317 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,427 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,733 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,703 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,556 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,630 |
| Name the English Monarchs | 0 | - | 4.91 | 506,058 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,225 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,972 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,027 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,013 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,826 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,615 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,073 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,983 |
| The Only European Country ... | 0 | - | 4.91 | 218,777 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,400 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,510 |
| Name that Greek Letter | 0 | - | 4.93 | 324,872 |
| The Trojan War | 0 | - | 4.83 | 39,963 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,857 |
| History of Italy | 0 | - | 4.55 | 32,137 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,556 |
| Roman Emperors | 0 | - | 4.95 | 121,093 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,810 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,412 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,076 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,256,573 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,024 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,425 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,976 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,575 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,721 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,539 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,492 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,777 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,391 |
| Counties of England | 0 | - | 4.97 | 802,314 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,172 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,171 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,304 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,498 |
| Ancient Greek Words | 0 | - | 4.93 | 112,385 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,657 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,434 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,402 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,469 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,409 |
| Monarchies of Europe | 0 | - | 4.90 | 98,793 |
| European Countries with One Border | 0 | - | 4.97 | 183,692 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,447 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,463 |
| Geography of Russia | 0 | - | 4.57 | 21,592 |
| Russian Inventions | 0 | - | 4.39 | 13,012 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,432 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,964 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,751 |
| Romania Country Quiz | 0 | - | 4.63 | 54,100 |
| History of Austria | 0 | - | 4.70 | 17,968 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,539 |
| Geography of the French Empire | 0 | - | 4.45 | 27,209 |
| The French Revolution | 0 | - | 4.47 | 24,135 |
| History of France | 0 | - | 4.61 | 57,563 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,713 |
| States of Germany | 0 | - | 4.95 | 154,314 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,554 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,649 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,210 |
| Regions of Italy | 0 | - | 4.92 | 76,956 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,486 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,762 |
| The Vikings! | 0 | - | 4.46 | 28,400 |
| The Portuguese Empire | 0 | - | 4.58 | 12,099 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,228 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,705 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,476 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,447 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,198 |
| Geography of the British Empire | 0 | - | 4.48 | 39,839 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,832 |
| Champions League Winners | 0 | - | 4.92 | 1,015,268 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,797 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,725 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,610 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,768 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,755 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,337 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,800 |
| Russia Country Quiz | 0 | - | 4.83 | 115,264 |
| Countries That Border Russia | 0 | - | 4.98 | 464,324 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,914 |
| France Cities Map Quiz | 0 | - | 4.95 | 167,713 |
| Departments of France | 0 | - | 4.93 | 55,056 |
| Countries Bordering France | 0 | - | 4.83 | 404,719 |
| Germany Country Quiz | 0 | - | 4.82 | 158,756 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,021 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,666 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,147 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,973 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,725 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,552 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,415 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,786 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,656 |
| England or Wales? | 0 | - | 4.94 | 45,940 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,966 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,448 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,267 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,717 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 120,505 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,643 |
| Lithuania Country Quiz | 0 | - | 4.63 | 31,781 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,190 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,212 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,032 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,948 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,686 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,615 |
| History of The Netherlands | 0 | - | 4.46 | 17,543 |
| Medieval English History | 0 | - | 4.53 | 43,640 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,723,428 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,707 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,324 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,325 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,689 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,894 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,988 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,898 |
| Countries that Border Poland | 0 | - | 4.99 | 173,095 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,356 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,651 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,863 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 31,057 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,849 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,460 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,023 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,057 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,907 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,123 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,446 |
| French History Multiple Choice | 0 | - | 4.55 | 33,212 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,473 |
| History of Germany | 0 | - | 4.39 | 52,965 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,248 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,826 |
| Counties of Ireland | 0 | - | 4.92 | 197,185 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,221 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,289 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,250 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,193 |
| Roman Names for Places | 0 | - | 4.62 | 58,672 |
| Byzantine History | 0 | - | 4.91 | 29,013 |
| Byzantine Emperors | 0 | - | 4.93 | 14,571 |
| History of Spain | 0 | - | 4.23 | 21,158 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,304 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,021 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,253 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,823 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,943 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,237 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,924 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,298 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,072 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,038 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,029 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,261 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 405,926 |
| Malta Country Quiz | 0 | - | 4.81 | 31,226 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,741 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,766 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,434 |
| Russian History A-Z | 0 | - | 4.35 | 32,178 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,533 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,245 |
| French Inventions | 0 | - | 4.10 | 13,923 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,659 |
| History of Paris | 0 | - | 4.24 | 13,680 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,250 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,518 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,231 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,160 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,125 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,095 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,825 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,311 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,028 |
| Embarrassing Chapters in British History | 0 | - | 4.30 | 32,360 |
| British History A-Z #1 | 0 | - | 4.45 | 47,201 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,048 |
