| European Countries by First 2 Letters | 0 | - | 4.95 | 528,813 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,290 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,877 |
| States of Germany | 0 | - | 4.96 | 151,961 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,900 |
| Regions of Italy | 0 | - | 4.92 | 75,571 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,912 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,660 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,025 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,661 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,004 |
| Official European Union Languages | 0 | - | 4.97 | 238,148 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,628 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,548 |
| The Vikings! | 0 | - | 4.46 | 28,319 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,886 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,763 |
| History of Italy | 0 | - | 4.55 | 31,936 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,651 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,615 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,168 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,361 |
| Celtic Nations | 0 | - | 4.69 | 46,909 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,256 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,003 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,699 |
| Counties of England | 0 | - | 4.97 | 794,916 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,411 |
| Regions of France | 0 | - | 4.75 | 120,446 |
| France Immigration by Country | 0 | - | 4.70 | 76,409 |
| Famous Germans | 0 | - | 4.50 | 55,180 |
| German Groups of Things | 0 | - | 4.46 | 38,440 |
| Germany True or False? | 0 | - | 4.61 | 48,742 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,882 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,319 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,239 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,756 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,236 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,083 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,915 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,404 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 77,986 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,720 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,429 |
| History of Austria | 0 | - | 4.70 | 17,835 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,177 |
| Geography of the French Empire | 0 | - | 4.45 | 27,026 |
| The French Revolution | 0 | - | 4.46 | 23,903 |
| France Multiple Choice | 0 | - | 4.39 | 40,711 |
| History of France | 0 | - | 4.59 | 56,844 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,559 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,050 |
| The Portuguese Empire | 0 | - | 4.58 | 12,048 |
| American to British Word Translation | 0 | - | 4.14 | 138,767 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,861 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,677 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,050 |
| Champions League Winners | 0 | - | 4.92 | 1,003,996 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,652 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,317 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,709 |
| Departments of France | 0 | - | 4.93 | 53,819 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,518 |
| England or Wales? | 0 | - | 4.94 | 45,609 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,816 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,563 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,644 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,505 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,458 |
| Slavic Languages | 0 | - | 4.68 | 54,276 |
| Famous French People | 0 | - | 4.06 | 35,005 |
| Word Chain - France | 0 | - | 4.38 | 42,745 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,580 |
| Italian Foods | 0 | - | 4.30 | 72,658 |
| The Mafia Quiz | 0 | - | 4.46 | 23,299 |
| History of The Netherlands | 0 | - | 4.46 | 17,407 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,422 |
| Canary Islands | 0 | - | 4.62 | 17,460 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,611 |
| British Spellings | 0 | - | 4.06 | 99,408 |
| British Groups of Things | 0 | - | 4.25 | 82,835 |
| British Acronyms | 0 | - | 4.39 | 45,761 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,021 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,690 |
| Geography of Scotland | 0 | - | 4.63 | 21,595 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,350 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,722 |
| Geography of Germany | 0 | - | 4.35 | 17,164 |
| History of Germany | 0 | - | 4.39 | 52,781 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,159 |
| Name that Greek Letter | 0 | - | 4.93 | 323,106 |
| History of Spain | 0 | - | 4.23 | 21,071 |
| Languages of Spain | 0 | - | 4.36 | 23,285 |
| British to American Word Translation | 0 | - | 3.74 | 255,006 |
| 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 | 27,581 |
| Bridges of London | 0 | - | 4.17 | 10,093 |
| British Sport Trivia | 0 | - | 4.37 | 20,441 |
| Famous Welsh People | 0 | - | 4.29 | 11,378 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,898 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,868 |
| History of Russia Quiz | 0 | - | 4.49 | 31,882 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,696 |
| Movies Set in France | 0 | - | 4.26 | 13,114 |
| French Inventions | 0 | - | 4.08 | 13,890 |
| History of Paris | 0 | - | 4.24 | 13,637 |
| Word Chain - Germany | 0 | - | 4.31 | 22,564 |
| The Trojan War | 0 | - | 4.83 | 39,654 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,551 |
| Word Chain - Italy | 0 | - | 4.07 | 23,149 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,088 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,421 |
| Roman Emperors | 0 | - | 4.95 | 119,663 |
| Famous Nordic People | 0 | - | 4.34 | 20,066 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,611 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,797 |
| 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 | 16,603 |
| Name a Valid English City | 0 | - | 4.19 | 16,703 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,700 |
| Australian Capitals | 0 | - | 4.92 | 62,696 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,193 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,643 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,375 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,104 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,161 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,176 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,247 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,582 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,327 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,818 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,163 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,910 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,212 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,871 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,160 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,186 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,388 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,367 |
| Capitals of French Regions | 0 | - | 4.45 | 16,041 |
| Capitals of German States | 0 | - | 4.74 | 28,933 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,288 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,626 |
| Ancient Greek Words | 0 | - | 4.93 | 111,364 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,685 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,467 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,865 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,671 |
| European Physical Geography | 0 | - | 4.26 | 33,472 |
| Geography of Russia | 0 | - | 4.57 | 21,511 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,909 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,355 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,014 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,576 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,612 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,307 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,313 |
| Geography of the British Empire | 0 | - | 4.48 | 39,631 |
| Champions League Top 4 | 0 | - | 4.77 | 135,805 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,690 |
| Asia Map Quiz | 0 | - | 4.99 | 914,620 |
| Countries of Africa | 0 | - | 5.00 | 2,530,413 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,623 |
| African East Coast | 0 | - | 4.96 | 95,839 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,626 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,473 |
| Australia Map Quiz | 0 | - | 4.95 | 343,862 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,129 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,770 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,583 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,566 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,994 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,266 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,592 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,769 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,422 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,263 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,922 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,521 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,764 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,617 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,027 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,853 |
| European Geography A-Z | 0 | - | 4.29 | 49,201 |
| Country Codes of Europe | 0 | - | 3.43 | 13,700 |
| The Only European Country ... | 0 | - | 4.91 | 216,021 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,790 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,054 |
| Austria... or Australia? | 0 | - | 4.68 | 104,237 |
| Presidents of France | 0 | - | 4.25 | 24,040 |
| French Foods | 0 | - | 4.00 | 27,671 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,942 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,876 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,480 |
| Italian Inventions | 0 | - | 3.81 | 18,433 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,256 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,013 |
