| Germany Multiple Choice | 0 | - | 4.84 | 54,629 |
| Regions of Italy | 0 | - | 4.92 | 76,743 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,800 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,346 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,969 |
| History of Italy | 0 | - | 4.55 | 32,113 |
| States of Germany | 0 | - | 4.95 | 154,057 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,554 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,665 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,053 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,624 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,811 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,590 |
| Official European Union Languages | 0 | - | 4.97 | 239,468 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,476 |
| Germany True or False? | 0 | - | 4.61 | 48,969 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,223 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,707 |
| England or Wales? | 0 | - | 4.94 | 45,901 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,273 |
| France Multiple Choice | 0 | - | 4.39 | 40,813 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,709 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,233 |
| Italian Foods | 0 | - | 4.30 | 73,151 |
| The Mafia Quiz | 0 | - | 4.46 | 23,413 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,004 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,835 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,498 |
| Roman Emperors | 0 | - | 4.95 | 120,925 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,785 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,387 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,475 |
| Australia True or False | 0 | - | 4.87 | 57,076 |
| Celtic Nations | 0 | - | 4.61 | 47,068 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,897 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,234 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,059 |
| Counties of England | 0 | - | 4.97 | 801,424 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,239 |
| Regions of France | 0 | - | 4.70 | 121,783 |
| France Immigration by Country | 0 | - | 4.70 | 76,839 |
| Famous Germans | 0 | - | 4.50 | 55,687 |
| German Groups of Things | 0 | - | 4.47 | 38,603 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,353 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,645 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,383 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,663 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,892 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,578 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,627 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,698 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,306 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,732 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,978 |
| History of Austria | 0 | - | 4.70 | 17,955 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,385 |
| Geography of the French Empire | 0 | - | 4.45 | 27,198 |
| The French Revolution | 0 | - | 4.47 | 24,117 |
| History of France | 0 | - | 4.61 | 57,483 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,571 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,545 |
| Word Chain - Italy | 0 | - | 4.07 | 23,205 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,150 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,417 |
| The Vikings! | 0 | - | 4.46 | 28,394 |
| The Portuguese Empire | 0 | - | 4.58 | 12,095 |
| American to British Word Translation | 0 | - | 4.14 | 139,551 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,026 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,393 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,697 |
| Champions League Winners | 0 | - | 4.92 | 1,013,547 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,192 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,497 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,476 |
| Departments of France | 0 | - | 4.93 | 54,884 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,134 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,690 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,710 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,700 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,162 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,302 |
| Slavic Languages | 0 | - | 4.68 | 54,622 |
| Famous French People | 0 | - | 4.07 | 36,014 |
| Word Chain - France | 0 | - | 4.38 | 42,900 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,566 |
| History of The Netherlands | 0 | - | 4.46 | 17,530 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,592 |
| Canary Islands | 0 | - | 4.62 | 17,514 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,972 |
| British Spellings | 0 | - | 4.06 | 99,566 |
| British Groups of Things | 0 | - | 4.25 | 82,976 |
| British Acronyms | 0 | - | 4.40 | 45,904 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,087 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,058 |
| Geography of Scotland | 0 | - | 4.63 | 21,705 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,802 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,015 |
| Geography of Germany | 0 | - | 4.35 | 17,249 |
| History of Germany | 0 | - | 4.39 | 52,945 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,812 |
| Name that Greek Letter | 0 | - | 4.93 | 324,709 |
| Italian Inventions | 0 | - | 3.81 | 18,467 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,106 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,162 |
| Roman Names for Places | 0 | - | 4.62 | 58,618 |
| History of Spain | 0 | - | 4.23 | 21,147 |
| Languages of Spain | 0 | - | 4.36 | 23,400 |
| British to American Word Translation | 0 | - | 3.74 | 255,279 |
| British Foods by Description | 0 | - | 3.94 | 48,367 |
| British and American Word Differences | 0 | - | 2.63 | 46,917 |
| British Geography Quiz #2 | 0 | - | 4.29 | 28,192 |
| Bridges of London | 0 | - | 4.17 | 10,135 |
| British Sport Trivia | 0 | - | 4.37 | 20,512 |
| Famous Welsh People | 0 | - | 4.34 | 11,654 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,579 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,651 |
| History of Russia Quiz | 0 | - | 4.47 | 31,987 |
| Movies Set in France | 0 | - | 4.26 | 13,144 |
| French Inventions | 0 | - | 4.10 | 13,918 |
| History of Paris | 0 | - | 4.24 | 13,669 |
| Word Chain - Germany | 0 | - | 4.31 | 22,659 |
| The Trojan War | 0 | - | 4.83 | 39,937 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,699 |
| Famous Nordic People | 0 | - | 4.34 | 20,243 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,633 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,048 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,389 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,567 |
| People on Money - England | 0 | - | 4.29 | 16,636 |
| Name a Valid English City | 0 | - | 4.19 | 16,798 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,335 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,802 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,061 |
| Australian Capitals | 0 | - | 4.92 | 62,806 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,688 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,069 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,018 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,077 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,738 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,080 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,864 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,380 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,593 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,289 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,281 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,458 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,110 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,409 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,370 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,211 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,435 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,657 |
| Capitals of French Regions | 0 | - | 4.45 | 16,156 |
| Capitals of German States | 0 | - | 4.74 | 29,038 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,504 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,063 |
| Ancient Greek Words | 0 | - | 4.93 | 112,271 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,696 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,238 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,913 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,578 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,050 |
| European Physical Geography | 0 | - | 4.26 | 33,574 |
| Geography of Russia | 0 | - | 4.57 | 21,577 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,081 |
| Italian History A-Z | 0 | - | 4.16 | 17,882 |
| Serie A Champions | 0 | - | 4.29 | 58,684 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,157 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,318 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,280 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,772 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,439 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,127 |
| Geography of the British Empire | 0 | - | 4.48 | 39,818 |
| Champions League Top 4 | 0 | - | 4.77 | 138,320 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,176 |
| Asia Map Quiz | 0 | - | 4.99 | 923,241 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,261 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,297 |
| Australia Map Quiz | 0 | - | 4.95 | 345,818 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,128 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,494 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,847 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,328 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,774 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,808 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,113 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,918 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,623 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,313 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,950 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,363 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,418 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,832 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,708 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,774 |
| European Geography A-Z | 0 | - | 4.29 | 49,437 |
| Country Codes of Europe | 0 | - | 3.43 | 13,787 |
| The Only European Country ... | 0 | - | 4.91 | 218,427 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,192 |
