| European Countries by First 2 Letters | 0 | - | 4.95 | 531,990 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,643 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,375 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,116 |
| States of Germany | 0 | - | 4.95 | 154,145 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,585 |
| Regions of Italy | 0 | - | 4.92 | 76,790 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,695 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,115 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,656 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,816 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,609 |
| Official European Union Languages | 0 | - | 4.97 | 239,537 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,513 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,404 |
| The Vikings! | 0 | - | 4.46 | 28,397 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,329 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,251 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,015 |
| History of Italy | 0 | - | 4.55 | 32,118 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,241 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,792 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,401 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,481 |
| Celtic Nations | 0 | - | 4.61 | 47,072 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,927 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,331 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,200 |
| Counties of England | 0 | - | 4.97 | 801,718 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,533 |
| Regions of France | 0 | - | 4.70 | 121,853 |
| France Immigration by Country | 0 | - | 4.70 | 76,856 |
| Famous Germans | 0 | - | 4.50 | 55,715 |
| German Groups of Things | 0 | - | 4.47 | 38,610 |
| Germany True or False? | 0 | - | 4.61 | 48,979 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,371 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,263 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,661 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,387 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,693 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,605 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,658 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,710 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,359 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,793 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,111 |
| History of Austria | 0 | - | 4.70 | 17,962 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,430 |
| Geography of the French Empire | 0 | - | 4.45 | 27,202 |
| The French Revolution | 0 | - | 4.47 | 24,124 |
| France Multiple Choice | 0 | - | 4.39 | 40,822 |
| History of France | 0 | - | 4.61 | 57,508 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,639 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,549 |
| The Portuguese Empire | 0 | - | 4.58 | 12,096 |
| American to British Word Translation | 0 | - | 4.14 | 139,576 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,031 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,417 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,751 |
| Champions League Winners | 0 | - | 4.92 | 1,014,149 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,309 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,586 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,557 |
| Departments of France | 0 | - | 4.93 | 54,927 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,714 |
| England or Wales? | 0 | - | 4.94 | 45,914 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,771 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,712 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,709 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,186 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,400 |
| Slavic Languages | 0 | - | 4.67 | 54,635 |
| Famous French People | 0 | - | 4.07 | 36,031 |
| Word Chain - France | 0 | - | 4.38 | 42,908 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,716 |
| Italian Foods | 0 | - | 4.30 | 73,174 |
| The Mafia Quiz | 0 | - | 4.46 | 23,418 |
| History of The Netherlands | 0 | - | 4.46 | 17,534 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,600 |
| Canary Islands | 0 | - | 4.62 | 17,514 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,999 |
| British Spellings | 0 | - | 4.06 | 99,575 |
| British Groups of Things | 0 | - | 4.25 | 82,982 |
| British Acronyms | 0 | - | 4.40 | 45,910 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,090 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,069 |
| Geography of Scotland | 0 | - | 4.63 | 21,713 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,835 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,028 |
| Geography of Germany | 0 | - | 4.35 | 17,253 |
| History of Germany | 0 | - | 4.39 | 52,957 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,021 |
| Name that Greek Letter | 0 | - | 4.93 | 324,761 |
| History of Spain | 0 | - | 4.23 | 21,149 |
| Languages of Spain | 0 | - | 4.36 | 23,407 |
| British to American Word Translation | 0 | - | 3.74 | 255,288 |
| British Foods by Description | 0 | - | 3.94 | 48,373 |
| British and American Word Differences | 0 | - | 2.63 | 46,919 |
| British Geography Quiz #2 | 0 | - | 4.29 | 28,201 |
| Bridges of London | 0 | - | 4.17 | 10,138 |
| British Sport Trivia | 0 | - | 4.37 | 20,514 |
| Famous Welsh People | 0 | - | 4.34 | 11,661 |
| Malta Country Quiz | 0 | - | 4.81 | 31,211 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,699 |
| History of Russia Quiz | 0 | - | 4.47 | 31,991 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,840 |
| Movies Set in France | 0 | - | 4.26 | 13,145 |
| French Inventions | 0 | - | 4.10 | 13,919 |
| History of Paris | 0 | - | 4.24 | 13,671 |
| Word Chain - Germany | 0 | - | 4.31 | 22,666 |
| The Trojan War | 0 | - | 4.83 | 39,945 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,762 |
| Word Chain - Italy | 0 | - | 4.07 | 23,209 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,155 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,519 |
| Roman Emperors | 0 | - | 4.95 | 120,983 |
| Famous Nordic People | 0 | - | 4.34 | 20,268 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,835 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,638 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,057 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,391 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,569 |
| People on Money - England | 0 | - | 4.29 | 16,638 |
| Name a Valid English City | 0 | - | 4.19 | 16,802 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,414 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,123 |
| Australian Capitals | 0 | - | 4.92 | 62,812 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,722 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,098 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,205 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,106 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,757 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,114 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,878 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,395 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,611 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,322 |
| Europe Map Quiz | 0 | - | 5.00 | 4,782,456 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,465 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,124 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,415 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,385 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,228 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,463 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,676 |
| Capitals of French Regions | 0 | - | 4.45 | 16,159 |
| Capitals of German States | 0 | - | 4.74 | 29,046 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,511 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,218 |
| Ancient Greek Words | 0 | - | 4.93 | 112,302 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,999 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,643 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,359 |
| European Physical Geography | 0 | - | 4.26 | 33,581 |
| Geography of Russia | 0 | - | 4.57 | 21,584 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,089 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,274 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,441 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,297 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,426 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,778 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,442 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,150 |
| Geography of the British Empire | 0 | - | 4.48 | 39,826 |
| Champions League Top 4 | 0 | - | 4.77 | 138,480 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,411 |
| Asia Map Quiz | 0 | - | 4.99 | 923,684 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,697 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,329 |
| Australia Map Quiz | 0 | - | 4.95 | 345,887 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,746 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,586 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,864 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,432 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,885 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,828 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,139 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,935 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,639 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,329 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,965 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,381 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,434 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,843 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,719 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,835 |
| European Geography A-Z | 0 | - | 4.29 | 49,447 |
| Country Codes of Europe | 0 | - | 3.43 | 13,794 |
| The Only European Country ... | 0 | - | 4.91 | 218,542 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,254 |
| European Geographic Groups of Four | 0 | - | 4.54 | 19,820 |
| Austria... or Australia? | 0 | - | 4.68 | 104,696 |
| Presidents of France | 0 | - | 4.25 | 24,311 |
| French Foods | 0 | - | 4.00 | 27,760 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,193 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,015 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,516 |
| Italian Inventions | 0 | - | 3.81 | 18,468 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,583 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,103 |
