| European Countries by First 2 Letters | 0 | - | 4.95 | 530,815 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,507 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,234 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,841 |
| States of Germany | 0 | - | 4.95 | 153,397 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,325 |
| Regions of Italy | 0 | - | 4.92 | 76,340 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,474 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,558 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,449 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,765 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,371 |
| Official European Union Languages | 0 | - | 4.97 | 239,017 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,192 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,364 |
| The Vikings! | 0 | - | 4.46 | 28,373 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,132 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,928 |
| History of Italy | 0 | - | 4.55 | 32,068 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,016 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,733 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,311 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,437 |
| Celtic Nations | 0 | - | 4.69 | 47,006 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,668 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,577 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,556 |
| Counties of England | 0 | - | 4.97 | 799,447 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,506 |
| Regions of France | 0 | - | 4.70 | 121,349 |
| France Immigration by Country | 0 | - | 4.70 | 76,706 |
| Famous Germans | 0 | - | 4.50 | 55,555 |
| German Groups of Things | 0 | - | 4.46 | 38,534 |
| Germany True or False? | 0 | - | 4.61 | 48,909 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,178 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,879 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,522 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,358 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,485 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,007 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,439 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,601 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,290 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,393 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,185 |
| History of Austria | 0 | - | 4.70 | 17,918 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,924 |
| Geography of the French Empire | 0 | - | 4.45 | 27,161 |
| The French Revolution | 0 | - | 4.47 | 24,072 |
| France Multiple Choice | 0 | - | 4.39 | 40,778 |
| History of France | 0 | - | 4.61 | 57,317 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,278 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,229 |
| The Portuguese Empire | 0 | - | 4.58 | 12,086 |
| American to British Word Translation | 0 | - | 4.14 | 139,363 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,962 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,206 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,307 |
| Champions League Winners | 0 | - | 4.92 | 1,010,471 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,139 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,563 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,827 |
| Departments of France | 0 | - | 4.93 | 54,549 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,626 |
| England or Wales? | 0 | - | 4.94 | 45,819 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,137 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,660 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,676 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,933 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,743 |
| Slavic Languages | 0 | - | 4.68 | 54,495 |
| Famous French People | 0 | - | 4.07 | 35,897 |
| Word Chain - France | 0 | - | 4.38 | 42,857 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,676 |
| Italian Foods | 0 | - | 4.30 | 72,989 |
| The Mafia Quiz | 0 | - | 4.46 | 23,383 |
| History of The Netherlands | 0 | - | 4.46 | 17,493 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,522 |
| Canary Islands | 0 | - | 4.62 | 17,498 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,844 |
| British Spellings | 0 | - | 4.06 | 99,517 |
| British Groups of Things | 0 | - | 4.25 | 82,918 |
| British Acronyms | 0 | - | 4.40 | 45,863 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,059 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,973 |
| Geography of Scotland | 0 | - | 4.63 | 21,671 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,674 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,889 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,512 |
| Geography of Germany | 0 | - | 4.35 | 17,213 |
| History of Germany | 0 | - | 4.39 | 52,909 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,370 |
| Name that Greek Letter | 0 | - | 4.93 | 324,261 |
| History of Spain | 0 | - | 4.23 | 21,124 |
| Languages of Spain | 0 | - | 4.36 | 23,357 |
| British to American Word Translation | 0 | - | 3.74 | 255,192 |
| British Foods by Description | 0 | - | 3.94 | 48,347 |
| British and American Word Differences | 0 | - | 2.63 | 46,901 |
| British Geography Quiz #2 | 0 | - | 4.29 | 28,009 |
| Bridges of London | 0 | - | 4.17 | 10,123 |
| British Sport Trivia | 0 | - | 4.37 | 20,488 |
| Famous Welsh People | 0 | - | 4.31 | 11,577 |
| Malta Country Quiz | 0 | - | 4.81 | 31,132 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,402 |
| History of Russia Quiz | 0 | - | 4.47 | 31,962 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,788 |
| Movies Set in France | 0 | - | 4.26 | 13,135 |
| French Inventions | 0 | - | 4.10 | 13,910 |
| History of Paris | 0 | - | 4.24 | 13,665 |
| Word Chain - Germany | 0 | - | 4.31 | 22,633 |
| The Trojan War | 0 | - | 4.83 | 39,816 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,328 |
| Word Chain - Italy | 0 | - | 4.07 | 23,194 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,133 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,672 |
| Roman Emperors | 0 | - | 4.95 | 120,456 |
| Famous Nordic People | 0 | - | 4.34 | 20,185 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,807 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,624 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,979 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,365 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,547 |
| People on Money - England | 0 | - | 4.29 | 16,626 |
| Name a Valid English City | 0 | - | 4.19 | 16,758 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,782 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,683 |
| Australian Capitals | 0 | - | 4.92 | 62,764 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,046 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,447 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,840 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,393 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,056 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,399 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,244 |
| European Geography By Letter - R | 0 | - | 4.42 | 94,055 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,319 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,888 |
| Europe Map Quiz | 0 | - | 5.00 | 4,773,307 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,374 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,035 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,331 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,311 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,928 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,566 |
| Capitals of French Regions | 0 | - | 4.45 | 16,117 |
| Capitals of German States | 0 | - | 4.74 | 28,994 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,416 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,095 |
| Ancient Greek Words | 0 | - | 4.93 | 111,986 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,220 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,158 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,932 |
| European Physical Geography | 0 | - | 4.26 | 33,545 |
| Geography of Russia | 0 | - | 4.57 | 21,557 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,029 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,253 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,297 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,187 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,387 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,735 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,418 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,923 |
| Geography of the British Empire | 0 | - | 4.48 | 39,748 |
| Champions League Top 4 | 0 | - | 4.77 | 137,447 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,949 |
| Asia Map Quiz | 0 | - | 4.99 | 920,256 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,553 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,011 |
| Australia Map Quiz | 0 | - | 4.95 | 345,322 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,354 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,912 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,756 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,708 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,204 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,307 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,658 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,509 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,194 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,932 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,565 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,042 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,174 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,764 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,466 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,811 |
| European Geography A-Z | 0 | - | 4.29 | 49,376 |
| Country Codes of Europe | 0 | - | 3.43 | 13,762 |
| The Only European Country ... | 0 | - | 4.91 | 217,591 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,707 |
| European Geographic Groups of Four | 0 | - | 4.77 | 13,924 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,324 |
| Austria... or Australia? | 0 | - | 4.68 | 104,532 |
| Presidents of France | 0 | - | 4.25 | 24,220 |
| French Foods | 0 | - | 4.00 | 27,731 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,095 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,954 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,855 |
| Italian Inventions | 0 | - | 3.81 | 18,463 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,443 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,071 |
