| Regions of Italy | 0 | - | 4.92 | 77,355 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,546 |
| Counties of England | 0 | - | 4.97 | 804,922 |
| History of Italy | 0 | - | 4.55 | 32,204 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,997 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,901 |
| States of Germany Map Quiz | 0 | - | 4.92 | 134,101 |
| States of Germany | 0 | - | 4.95 | 155,085 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,879 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,985 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,701 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,979 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,710 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,880 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,521 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,802 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,652 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,423 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,835 |
| Malta Country Quiz | 0 | - | 4.81 | 31,279 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,429 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,763 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,651 |
| The Only European Country ... | 0 | - | 4.91 | 219,854 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,967 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,355 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,748 |
| Roman Emperors | 0 | - | 4.95 | 121,559 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,868 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,490 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,162 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,971 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,903 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,871 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,616 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,514 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,971 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,385 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,869 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,467 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,975 |
| Slavic Countries | 0 | - | 4.96 | 112,588 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,781 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,192 |
| Regions of France | 0 | - | 4.70 | 122,545 |
| France Immigration by Country | 0 | - | 4.70 | 77,052 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,626 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,812 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,990 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,524 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 104,010 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,322 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,047 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,825 |
| Three Band Flags of Europe | 0 | - | 4.98 | 195,002 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,851 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,742 |
| Monarchies of Europe | 0 | - | 4.90 | 99,112 |
| European Countries with One Border | 0 | - | 4.97 | 184,140 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,853 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,420 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,677 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,316 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,137 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,104 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,090 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,639 |
| History of Austria | 0 | - | 4.70 | 17,995 |
| Movies Set in France | 0 | - | 4.26 | 13,166 |
| Geography of the French Empire | 0 | - | 4.45 | 27,245 |
| The French Revolution | 0 | - | 4.47 | 24,178 |
| History of France | 0 | - | 4.61 | 57,785 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,584 |
| Italy Country Quiz | 0 | - | 4.77 | 124,300 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,190 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,669 |
| The Vikings! | 0 | - | 4.46 | 28,434 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| American to British Word Translation | 0 | - | 4.14 | 139,897 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,104 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,401 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,514 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,501 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,430 |
| Geography of the British Empire | 0 | - | 4.48 | 39,895 |
| Champions League Winners | 0 | - | 4.92 | 1,018,972 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,156 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,059 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,574 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,506 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,440 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,730 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,228 |
| Russia Country Quiz | 0 | - | 4.83 | 115,540 |
| Countries That Border Russia | 0 | - | 4.98 | 465,154 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,887 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.85 | 35,687 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,041 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,268 |
| Departments of France | 0 | - | 4.93 | 55,514 |
| Countries Bordering France | 0 | - | 4.83 | 405,570 |
| Germany Country Quiz | 0 | - | 4.82 | 159,203 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,336 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,423 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,316 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,775 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,669 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,113 |
| England or Wales? | 0 | - | 4.94 | 46,113 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,647 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,322 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,745 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,850 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,834 |
| Figures from Greek Mythology | 0 | - | 4.92 | 194,869 |
| Italian Foods | 0 | - | 4.30 | 73,445 |
| Countries Italy Declared War On | 0 | - | 4.77 | 50,915 |
| History of The Netherlands | 0 | - | 4.46 | 17,583 |
| Canary Islands | 0 | - | 4.62 | 17,553 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,195 |
| British Spellings | 0 | - | 4.06 | 99,648 |
| British Groups of Things | 0 | - | 4.26 | 83,057 |
| British Acronyms | 0 | - | 4.40 | 46,003 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,137 |
| Biggest Immigrant Groups by Decade in the UK | 0 | - | 4.63 | 25,909 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,242 |
| Geography of Scotland | 0 | - | 4.63 | 21,842 |
| Name the English Monarchs | 0 | - | 4.91 | 507,797 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,425 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,867 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,102 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,355 |
| Countries that Border Poland | 0 | - | 4.99 | 173,428 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,393 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,522 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,141 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,109 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,092 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,269 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,331 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,098 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,258 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,617 |
| Geography of Germany | 0 | - | 4.36 | 17,456 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,356 |
| History of Germany | 0 | - | 4.39 | 53,013 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,504 |
| Name that Greek Letter | 0 | - | 4.93 | 325,459 |
| Counties of Ireland | 0 | - | 4.92 | 197,825 |
| Italian Inventions | 0 | - | 3.81 | 18,488 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,419 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,287 |
| Roman Names for Places | 0 | - | 4.62 | 58,825 |
| Byzantine History | 0 | - | 4.91 | 29,067 |
| Byzantine Emperors | 0 | - | 4.93 | 14,680 |
| History of Spain | 0 | - | 4.23 | 21,181 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,505 |
| British to American Word Translation | 0 | - | 3.74 | 255,420 |
| British Foods by Description | 0 | - | 3.94 | 48,421 |
| British and American Word Differences | 0 | - | 2.63 | 46,944 |
| British Geography Quiz #2 | 0 | - | 4.30 | 28,264 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,783 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,836 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,259 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,469 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,472 |
| Bridges of London | 0 | - | 4.17 | 10,157 |
| British Sport Trivia | 0 | - | 4.39 | 20,558 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 408,509 |
| Famous Welsh People | 0 | - | 4.34 | 11,742 |
| Liechtenstein Country Quiz | 0 | - | 4.64 | 27,262 |
| San Marino Country Quiz | 0 | - | 4.72 | 29,169 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.75 | 12,370 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,998 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,071 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,685 |
| History of Russia Quiz | 0 | - | 4.47 | 32,033 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,829 |
| French Inventions | 0 | - | 4.10 | 13,933 |
| History of Paris | 0 | - | 4.24 | 13,687 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,585 |
| The Trojan War | 0 | - | 4.83 | 40,133 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,393 |
| Italy A-Z | 0 | - | 4.49 | 58,908 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,597 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,366 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,060 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,473 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,428 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,590 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,244 |
| People on Money - England | 0 | - | 4.30 | 21,430 |
| Name a Valid English City | 0 | - | 4.19 | 16,851 |
| Monty Python Quotes | 0 | - | 4.89 | 42,637 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 281,175 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,793 |
| Australian Capitals | 0 | - | 4.92 | 62,887 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,901 |
| Official European Union Languages | 0 | - | 4.97 | 240,497 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,906 |
