| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,387 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,922 |
| Slavic Countries | 0 | - | 4.96 | 112,519 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,513 |
| History of Russia Quiz | 0 | - | 4.47 | 32,028 |
| Europe Map Quiz | 0 | - | 5.00 | 4,793,800 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,575 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,096 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,030 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,034 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,743 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,960 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,592 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,829 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,840 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,648 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,429 |
| Name the English Monarchs | 0 | - | 4.91 | 507,442 |
| Countries that Border Poland | 0 | - | 4.99 | 173,356 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,359 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,112 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,096 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,066 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,272 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,620 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,518 |
| The Only European Country ... | 0 | - | 4.91 | 219,637 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,857 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,050 |
| Name that Greek Letter | 0 | - | 4.93 | 325,325 |
| The Trojan War | 0 | - | 4.83 | 40,079 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,252 |
| History of Italy | 0 | - | 4.55 | 32,186 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,703 |
| Roman Emperors | 0 | - | 4.95 | 121,454 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,854 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,470 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,149 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,669 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,335 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,795 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,555 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,312 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,916 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,216 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,569 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,913 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,952 |
| Counties of England | 0 | - | 4.97 | 804,387 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,744 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,227 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,412 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,510 |
| Ancient Greek Words | 0 | - | 4.93 | 112,680 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,104 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,004 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,749 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,890 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,637 |
| Monarchies of Europe | 0 | - | 4.90 | 99,047 |
| European Countries with One Border | 0 | - | 4.97 | 184,045 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,763 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,096 |
| Geography of Russia | 0 | - | 4.57 | 21,621 |
| Russian Inventions | 0 | - | 4.39 | 13,035 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,514 |
| Ukraine Country Quiz | 0 | - | 4.43 | 48,048 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,841 |
| Romania Country Quiz | 0 | - | 4.63 | 54,217 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,827 |
| Geography of the French Empire | 0 | - | 4.45 | 27,236 |
| The French Revolution | 0 | - | 4.47 | 24,169 |
| History of France | 0 | - | 4.61 | 57,735 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,991 |
| States of Germany | 0 | - | 4.95 | 154,962 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,578 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,817 |
| Regions of Italy | 0 | - | 4.92 | 77,271 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,627 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,923 |
| The Vikings! | 0 | - | 4.46 | 28,425 |
| The Portuguese Empire | 0 | - | 4.58 | 12,118 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,608 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,907 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,650 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,492 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,386 |
| Geography of the British Empire | 0 | - | 4.48 | 39,882 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,873 |
| Champions League Winners | 0 | - | 4.92 | 1,018,157 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,084 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,969 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,374 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,360 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,293 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,429 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,141 |
| Russia Country Quiz | 0 | - | 4.83 | 115,462 |
| Countries That Border Russia | 0 | - | 4.98 | 464,952 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,993 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,008 |
| Departments of France | 0 | - | 4.93 | 55,416 |
| Countries Bordering France | 0 | - | 4.83 | 405,394 |
| Germany Country Quiz | 0 | - | 4.82 | 159,080 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,249 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,276 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,450 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,241 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,784 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,490 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,637 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,053 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,055 |
| England or Wales? | 0 | - | 4.94 | 46,058 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,505 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,713 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,114 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,742 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,163 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,789 |
| Lithuania Country Quiz | 0 | - | 4.63 | 31,833 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,247 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,285 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,075 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,044 |
| Figures from Greek Mythology | 0 | - | 4.91 | 192,606 |
| Countries Italy Declared War On | 0 | - | 4.74 | 48,271 |
| History of The Netherlands | 0 | - | 4.46 | 17,572 |
| Medieval English History | 0 | - | 4.53 | 43,691 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,731,554 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,018 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,407 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,829 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,068 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,284 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,960 |
| Poland Country Quiz | 0 | - | 4.20 | 63,828 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,372 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,322 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,918 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 31,122 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,898 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,494 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,226 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,289 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,056 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,231 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,569 |
| French History Multiple Choice | 0 | - | 4.55 | 33,279 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,169 |
| History of Germany | 0 | - | 4.39 | 53,003 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,489 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,893 |
| Counties of Ireland | 0 | - | 4.92 | 197,708 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,377 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,676 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,397 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,269 |
| Roman Names for Places | 0 | - | 4.62 | 58,792 |
| Byzantine History | 0 | - | 4.91 | 29,053 |
| Byzantine Emperors | 0 | - | 4.93 | 14,664 |
| History of Spain | 0 | - | 4.23 | 21,178 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,335 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,396 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,683 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,834 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,006 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,256 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,030 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,357 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,106 |
| Prime Ministers of the UK | 0 | - | 4.95 | 443,217 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,399 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,428 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 408,154 |
| Malta Country Quiz | 0 | - | 4.81 | 31,266 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.75 | 12,362 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,940 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,025 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,483 |
| Russian History A-Z | 0 | - | 4.35 | 32,309 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,763 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,313 |
| French Inventions | 0 | - | 4.10 | 13,933 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,817 |
| History of Paris | 0 | - | 4.24 | 13,687 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,513 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,670 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,262 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,183 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,299 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,304 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,011 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,443 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 69,115 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,210 |
| Embarrassing Chapters in British History | 0 | - | 4.30 | 32,410 |
| British History A-Z #1 | 0 | - | 4.45 | 47,344 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,156 |
