| Regions of Italy | 0 | - | 4.92 | 77,026 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,405 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,684 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,429 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,598 |
| History of Italy | 0 | - | 4.55 | 32,142 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,343 |
| States of Germany | 0 | - | 4.95 | 154,416 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,672 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,785 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,289 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,742 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,838 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,703 |
| Official European Union Languages | 0 | - | 4.97 | 239,738 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,608 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,349 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,732 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,791 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,734 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,303 |
| Italian Foods | 0 | - | 4.30 | 73,251 |
| The Mafia Quiz | 0 | - | 4.46 | 23,436 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,051 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,576 |
| Roman Emperors | 0 | - | 4.95 | 121,161 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,816 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,419 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,501 |
| Celtic Nations | 0 | - | 4.61 | 47,092 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,004 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,665 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,648 |
| Counties of England | 0 | - | 4.97 | 802,680 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,484 |
| Regions of France | 0 | - | 4.70 | 122,053 |
| France Immigration by Country | 0 | - | 4.70 | 76,921 |
| Famous Germans | 0 | - | 4.50 | 55,781 |
| German Groups of Things | 0 | - | 4.47 | 38,629 |
| Germany True or False? | 0 | - | 4.61 | 49,017 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,453 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,742 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,404 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,795 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,797 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,747 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,742 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,662 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,956 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,418 |
| History of Austria | 0 | - | 4.70 | 17,971 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,606 |
| Geography of the French Empire | 0 | - | 4.45 | 27,214 |
| The French Revolution | 0 | - | 4.47 | 24,145 |
| France Multiple Choice | 0 | - | 4.39 | 40,840 |
| History of France | 0 | - | 4.61 | 57,592 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,769 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,558 |
| Word Chain - Italy | 0 | - | 4.07 | 23,222 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,160 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,494 |
| The Vikings! | 0 | - | 4.46 | 28,403 |
| The Portuguese Empire | 0 | - | 4.58 | 12,104 |
| American to British Word Translation | 0 | - | 4.14 | 139,673 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,052 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,507 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,994 |
| Champions League Winners | 0 | - | 4.92 | 1,015,804 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,766 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,849 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,860 |
| Departments of France | 0 | - | 4.93 | 55,122 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,687 |
| England or Wales? | 0 | - | 4.94 | 45,959 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,066 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,740 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,719 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,301 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 121,511 |
| Slavic Languages | 0 | - | 4.68 | 54,682 |
| Famous French People | 0 | - | 4.07 | 36,089 |
| Word Chain - France | 0 | - | 4.38 | 42,932 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,639 |
| History of The Netherlands | 0 | - | 4.46 | 17,549 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,619 |
| Canary Islands | 0 | - | 4.62 | 17,525 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,064 |
| British Spellings | 0 | - | 4.06 | 99,595 |
| British Groups of Things | 0 | - | 4.26 | 83,007 |
| British Acronyms | 0 | - | 4.40 | 45,933 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,101 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,101 |
| Geography of Scotland | 0 | - | 4.63 | 21,737 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,926 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,075 |
| Geography of Germany | 0 | - | 4.35 | 17,279 |
| History of Germany | 0 | - | 4.39 | 52,968 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,724 |
| Name that Greek Letter | 0 | - | 4.93 | 324,928 |
| Italian Inventions | 0 | - | 3.81 | 18,473 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,276 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,200 |
| Roman Names for Places | 0 | - | 4.62 | 58,694 |
| History of Spain | 0 | - | 4.23 | 21,164 |
| Languages of Spain | 0 | - | 4.36 | 23,432 |
| British to American Word Translation | 0 | - | 3.74 | 255,337 |
| British Foods by Description | 0 | - | 3.94 | 48,388 |
| British and American Word Differences | 0 | - | 2.63 | 46,926 |
| British Geography Quiz #2 | 0 | - | 4.30 | 28,216 |
| Bridges of London | 0 | - | 4.17 | 10,143 |
| British Sport Trivia | 0 | - | 4.39 | 20,528 |
| Famous Welsh People | 0 | - | 4.34 | 11,682 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,818 |
| History of Russia Quiz | 0 | - | 4.47 | 32,001 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,867 |
| Movies Set in France | 0 | - | 4.26 | 13,151 |
| French Inventions | 0 | - | 4.10 | 13,927 |
| History of Paris | 0 | - | 4.24 | 13,682 |
| Word Chain - Germany | 0 | - | 4.31 | 22,680 |
| The Trojan War | 0 | - | 4.83 | 39,976 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,909 |
| Famous Nordic People | 0 | - | 4.34 | 20,297 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,645 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,091 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,408 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,575 |
| People on Money - England | 0 | - | 4.29 | 16,643 |
| Name a Valid English City | 0 | - | 4.19 | 16,820 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,625 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,316 |
| Australian Capitals | 0 | - | 4.92 | 62,827 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,076 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,419 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,793 |
| European Geography By Letter - D | 0 | - | 4.50 | 115,708 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,979 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,412 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,059 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,536 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,948 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,512 |
| Europe Map Quiz | 0 | - | 5.00 | 4,787,110 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,510 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,170 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,451 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,423 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,373 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,529 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,730 |
| Capitals of French Regions | 0 | - | 4.45 | 16,176 |
| Capitals of German States | 0 | - | 4.74 | 29,070 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,534 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,640 |
| Ancient Greek Words | 0 | - | 4.93 | 112,431 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,717 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,258 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,264 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,772 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,177 |
| European Physical Geography | 0 | - | 4.26 | 33,590 |
| Geography of Russia | 0 | - | 4.57 | 21,597 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,123 |
| Italian History A-Z | 0 | - | 4.16 | 17,926 |
| Serie A Champions | 0 | - | 4.29 | 58,787 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,174 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,376 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,356 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,446 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,806 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,456 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,229 |
| Geography of the British Empire | 0 | - | 4.48 | 39,844 |
| Champions League Top 4 | 0 | - | 4.78 | 138,966 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,297 |
| Asia Map Quiz | 0 | - | 4.99 | 924,875 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,328 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,441 |
| Australia Map Quiz | 0 | - | 4.95 | 346,101 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,886 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,880 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,904 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,730 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,180 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,095 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,393 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,125 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,880 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,504 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,148 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,528 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,529 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,887 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,848 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,061 |
| European Geography A-Z | 0 | - | 4.29 | 49,475 |
| Country Codes of Europe | 0 | - | 3.43 | 13,819 |
| The Only European Country ... | 0 | - | 4.91 | 218,917 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,466 |
| Austria... or Australia? | 0 | - | 4.68 | 104,753 |
| Presidents of France | 0 | - | 4.25 | 24,334 |
