| Regions of Italy | 0 | - | 4.92 | 75,045 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,315 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,153 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,704 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,649 |
| States of Germany | 0 | - | 4.96 | 150,833 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,272 |
| History of Italy | 0 | - | 4.55 | 31,877 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,377 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,037 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,986 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,632 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,602 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,784 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,418 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,790 |
| Official European Union Languages | 0 | - | 4.97 | 237,468 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,202 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,152 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,506 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,703 |
| Italian Foods | 0 | - | 4.31 | 72,395 |
| The Mafia Quiz | 0 | - | 4.46 | 23,232 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,218 |
| Roman Emperors | 0 | - | 4.95 | 119,016 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,646 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,542 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,066 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,298 |
| Celtic Nations | 0 | - | 4.69 | 46,858 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,044 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,027 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,100 |
| Regions of France | 0 | - | 4.78 | 119,745 |
| France Immigration by Country | 0 | - | 4.72 | 76,133 |
| Famous Germans | 0 | - | 4.50 | 54,790 |
| German Groups of Things | 0 | - | 4.46 | 38,363 |
| Germany True or False? | 0 | - | 4.61 | 48,628 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,664 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,996 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,125 |
| Counties of England | 0 | - | 4.97 | 791,729 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,705 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,478 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,952 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,564 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,488 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,583 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,202 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,955 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,618 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,067 |
| Word Chain - Italy | 0 | - | 4.07 | 23,128 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,062 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,748 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,774 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,258 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,494 |
| Champions League Winners | 0 | - | 4.92 | 999,693 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,264 |
| History of Austria | 0 | - | 4.70 | 17,786 |
| Geography of the French Empire | 0 | - | 4.45 | 26,980 |
| The French Revolution | 0 | - | 4.46 | 23,846 |
| France Multiple Choice | 0 | - | 4.38 | 40,670 |
| History of France | 0 | - | 4.59 | 56,486 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,416 |
| The Vikings! | 0 | - | 4.46 | 28,275 |
| The Portuguese Empire | 0 | - | 4.58 | 12,019 |
| American to British Word Translation | 0 | - | 4.13 | 137,898 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,787 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,462 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,243 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,859 |
| Departments of France | 0 | - | 4.93 | 53,151 |
| Word Chain - France | 0 | - | 4.38 | 42,657 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,107 |
| History of The Netherlands | 0 | - | 4.46 | 17,351 |
| Canary Islands | 0 | - | 4.61 | 17,428 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,321 |
| British Spellings | 0 | - | 4.07 | 99,334 |
| British Groups of Things | 0 | - | 4.25 | 82,748 |
| British Acronyms | 0 | - | 4.39 | 45,680 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,984 |
| Geography of Scotland | 0 | - | 4.63 | 21,525 |
| England or Wales? | 0 | - | 4.94 | 45,450 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,056 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,493 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,621 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,200 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,667 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,054 |
| Slavic Languages | 0 | - | 4.68 | 54,115 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,606 |
| French History Multiple Choice | 0 | - | 4.55 | 32,929 |
| Geography of Germany | 0 | - | 4.35 | 17,121 |
| History of Germany | 0 | - | 4.39 | 52,696 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,877 |
| Name that Greek Letter | 0 | - | 4.93 | 322,296 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,601 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,752 |
| Roman Names for Places | 0 | - | 4.62 | 58,009 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,317 |
| History of Spain | 0 | - | 4.29 | 21,035 |
| Languages of Spain | 0 | - | 4.36 | 23,212 |
| British to American Word Translation | 0 | - | 3.74 | 254,868 |
| British Foods by Description | 0 | - | 3.94 | 48,281 |
| British and American Word Differences | 0 | - | 2.64 | 46,811 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,537 |
| Bridges of London | 0 | - | 4.17 | 10,069 |
| British Sport Trivia | 0 | - | 4.37 | 20,394 |
| Famous Welsh People | 0 | - | 4.21 | 9,788 |
| Malta Country Quiz | 0 | - | 4.81 | 30,906 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,154 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,477 |
| History of Russia Quiz | 0 | - | 4.49 | 31,829 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,622 |
| Famous French People | 0 | - | 4.12 | 28,104 |
| Movies Set in France | 0 | - | 4.26 | 13,093 |
| French Inventions | 0 | - | 4.08 | 13,873 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,795 |
| History of Paris | 0 | - | 4.24 | 13,628 |
| Word Chain - Germany | 0 | - | 4.31 | 22,513 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,671 |
| The Trojan War | 0 | - | 4.83 | 39,531 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,007 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,900 |
| Italian Inventions | 0 | - | 3.81 | 18,421 |
| Famous Nordic People | 0 | - | 4.34 | 19,949 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,561 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,681 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,274 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,491 |
| People on Money - England | 0 | - | 4.29 | 16,582 |
| Name a Valid English City | 0 | - | 4.19 | 16,661 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,470 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,967 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,627 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,083 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,055 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,934 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,398 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,225 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,991 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,765 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,294 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,530 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,876 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,093 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,731 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,037 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,083 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,755 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,731 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,108 |
| Capitals of French Regions | 0 | - | 4.45 | 16,011 |
| Capitals of German States | 0 | - | 4.74 | 28,881 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,174 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,810 |
| Ancient Greek Words | 0 | - | 4.93 | 111,000 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,126 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,338 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,795 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,009 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,070 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,671 |
| Australian Capitals | 0 | - | 4.92 | 62,642 |
| European Physical Geography | 0 | - | 4.26 | 33,412 |
| Geography of Russia | 0 | - | 4.57 | 21,462 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,836 |
| Italian History A-Z | 0 | - | 4.21 | 17,611 |
| Serie A Champions | 0 | - | 4.29 | 57,921 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,509 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,004 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,795 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,378 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,250 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,439 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,252 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,026 |
| Geography of the British Empire | 0 | - | 4.48 | 39,559 |
| Champions League Top 4 | 0 | - | 4.77 | 134,676 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,187 |
| Asia Map Quiz | 0 | - | 4.99 | 909,834 |
| Countries of Africa | 0 | - | 5.00 | 2,517,365 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,154 |
| African East Coast | 0 | - | 4.96 | 95,399 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,262 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,093 |
| Australia Map Quiz | 0 | - | 4.94 | 343,051 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,680 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,832 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,415 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,692 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,000 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,386 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,814 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,054 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,678 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,636 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,324 |
