| European Countries by First 2 Letters | 0 | - | 4.95 | 528,702 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,285 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,873 |
| States of Germany | 0 | - | 4.96 | 151,915 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,887 |
| Regions of Italy | 0 | - | 4.92 | 75,553 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,874 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,643 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,019 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,660 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,998 |
| Official European Union Languages | 0 | - | 4.97 | 238,127 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,617 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,498 |
| History of Austria | 0 | - | 4.70 | 17,834 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,881 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,758 |
| History of Italy | 0 | - | 4.55 | 31,936 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,643 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,613 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,165 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,360 |
| Celtic Nations | 0 | - | 4.69 | 46,908 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,247 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,987 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,604 |
| Counties of England | 0 | - | 4.97 | 794,800 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,220 |
| Regions of France | 0 | - | 4.75 | 120,412 |
| France Immigration by Country | 0 | - | 4.70 | 76,402 |
| Famous Germans | 0 | - | 4.50 | 55,171 |
| German Groups of Things | 0 | - | 4.46 | 38,438 |
| Germany True or False? | 0 | - | 4.61 | 48,739 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,875 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,296 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,234 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,236 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,069 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,904 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,390 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 77,949 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,707 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,401 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,154 |
| Geography of the French Empire | 0 | - | 4.45 | 27,025 |
| The French Revolution | 0 | - | 4.46 | 23,901 |
| France Multiple Choice | 0 | - | 4.39 | 40,709 |
| History of France | 0 | - | 4.59 | 56,831 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,542 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| The Vikings! | 0 | - | 4.46 | 28,319 |
| The Portuguese Empire | 0 | - | 4.58 | 12,047 |
| American to British Word Translation | 0 | - | 4.14 | 138,752 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,859 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,565 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,021 |
| Champions League Winners | 0 | - | 4.92 | 1,003,756 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,619 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,286 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,680 |
| Departments of France | 0 | - | 4.93 | 53,787 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,516 |
| England or Wales? | 0 | - | 4.94 | 45,602 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,741 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,556 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,643 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,488 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,385 |
| Slavic Languages | 0 | - | 4.68 | 54,271 |
| Famous French People | 0 | - | 4.06 | 34,923 |
| Word Chain - France | 0 | - | 4.38 | 42,741 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,577 |
| Italian Foods | 0 | - | 4.30 | 72,645 |
| The Mafia Quiz | 0 | - | 4.46 | 23,297 |
| History of The Netherlands | 0 | - | 4.46 | 17,407 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,421 |
| Canary Islands | 0 | - | 4.62 | 17,460 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,602 |
| British Spellings | 0 | - | 4.06 | 99,404 |
| British Groups of Things | 0 | - | 4.25 | 82,831 |
| British Acronyms | 0 | - | 4.39 | 45,758 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,017 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,669 |
| Geography of Scotland | 0 | - | 4.63 | 21,593 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,346 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,716 |
| Geography of Germany | 0 | - | 4.35 | 17,164 |
| History of Germany | 0 | - | 4.39 | 52,780 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,121 |
| Name that Greek Letter | 0 | - | 4.93 | 323,089 |
| History of Spain | 0 | - | 4.23 | 21,071 |
| Languages of Spain | 0 | - | 4.36 | 23,283 |
| British to American Word Translation | 0 | - | 3.74 | 255,001 |
| British Foods by Description | 0 | - | 3.94 | 48,313 |
| British and American Word Differences | 0 | - | 2.63 | 46,857 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,580 |
| Bridges of London | 0 | - | 4.17 | 10,091 |
| British Sport Trivia | 0 | - | 4.37 | 20,440 |
| Famous Welsh People | 0 | - | 4.29 | 11,370 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,878 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,850 |
| History of Russia Quiz | 0 | - | 4.49 | 31,880 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,695 |
| Movies Set in France | 0 | - | 4.26 | 13,113 |
| French Inventions | 0 | - | 4.08 | 13,890 |
| History of Paris | 0 | - | 4.24 | 13,637 |
| Word Chain - Germany | 0 | - | 4.31 | 22,563 |
| The Trojan War | 0 | - | 4.83 | 39,650 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,537 |
| Word Chain - Italy | 0 | - | 4.07 | 23,149 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,087 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,419 |
| Roman Emperors | 0 | - | 4.95 | 119,655 |
| Famous Nordic People | 0 | - | 4.34 | 20,063 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,611 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,794 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,327 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,517 |
| People on Money - England | 0 | - | 4.29 | 16,601 |
| Name a Valid English City | 0 | - | 4.19 | 16,700 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,681 |
| Australian Capitals | 0 | - | 4.92 | 62,694 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,048 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,615 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,349 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,080 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,142 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,149 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,232 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,564 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,262 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,805 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,141 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,505 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,207 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,864 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,153 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,182 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,370 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,361 |
| Capitals of French Regions | 0 | - | 4.45 | 16,038 |
| Capitals of German States | 0 | - | 4.74 | 28,930 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,282 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,575 |
| Ancient Greek Words | 0 | - | 4.93 | 111,354 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,665 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,456 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,652 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,591 |
| European Physical Geography | 0 | - | 4.26 | 33,470 |
| Geography of Russia | 0 | - | 4.57 | 21,508 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,907 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,312 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,002 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,044 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,567 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,608 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,307 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,299 |
| Geography of the British Empire | 0 | - | 4.48 | 39,631 |
| Champions League Top 4 | 0 | - | 4.77 | 135,735 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,575 |
| Asia Map Quiz | 0 | - | 4.99 | 914,476 |
| Countries of Africa | 0 | - | 5.00 | 2,530,136 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,607 |
| African East Coast | 0 | - | 4.96 | 95,830 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,608 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,454 |
| Australia Map Quiz | 0 | - | 4.95 | 343,838 |
| United States Map Quiz | 0 | - | 4.98 | 4,153,968 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,737 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,579 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,541 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,949 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,248 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,577 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,754 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,406 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,248 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,905 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,508 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,753 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,611 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,015 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,833 |
| European Geography A-Z | 0 | - | 4.29 | 49,196 |
| Country Codes of Europe | 0 | - | 3.43 | 13,700 |
| The Only European Country ... | 0 | - | 4.91 | 215,990 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,771 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,044 |
| Austria... or Australia? | 0 | - | 4.68 | 104,231 |
| Presidents of France | 0 | - | 4.25 | 24,032 |
| French Foods | 0 | - | 4.00 | 27,671 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,937 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,875 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,444 |
| Italian Inventions | 0 | - | 3.81 | 18,433 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,250 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,010 |
| Biggest Immigrant Groups by Decade in the UK | 0 | - | 4.63 | 25,014 |
