| European Countries by First 2 Letters | 0 | - | 4.96 | 517,716 |
| Germany Multiple Choice | 0 | - | 4.83 | 52,978 |
| States of Germany | 0 | - | 4.95 | 143,480 |
| Germany Immigration by Country | 0 | - | 4.86 | 77,731 |
| States of the German Confederation in 1848 | 0 | - | 4.88 | 30,289 |
| Counties of Ireland | 0 | - | 4.89 | 181,598 |
| Regions of Italy | 0 | - | 4.91 | 71,023 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 39,789 |
| Regions of Spain Quiz | 0 | - | 4.89 | 108,210 |
| Cantons of Switzerland | 0 | - | 4.97 | 47,425 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 16,998 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 66,781 |
| Official European Union Languages | 0 | - | 4.98 | 232,031 |
| European Countries in their Native Language | 0 | - | 4.99 | 153,819 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 416,817 |
| The Vikings! | 0 | - | 4.46 | 27,999 |
| Europe Geography Decoder | 0 | - | 4.86 | 68,204 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 40,833 |
| Italy Multiple Choice | 0 | - | 4.74 | 101,332 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,980 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,548 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 22,755 |
| Celtic Nations | 0 | - | 4.70 | 46,365 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.85 | 85,384 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 303,144 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 156,113 |
| Counties of England | 0 | - | 4.97 | 769,407 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 336,191 |
| Regions of France | 0 | - | 4.74 | 114,887 |
| France Immigration by Country | 0 | - | 4.73 | 74,613 |
| Famous Germans | 0 | - | 4.44 | 41,522 |
| German Groups of Things | 0 | - | 4.46 | 37,857 |
| Germany True or False? | 0 | - | 4.63 | 47,771 |
| Largest Islands of Greece | 0 | - | 4.59 | 45,880 |
| Famous Italians by Clue | 0 | - | 4.45 | 85,573 |
| Provinces of the Netherlands | 0 | - | 4.78 | 38,903 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 47,616 |
| Foods in a Full English Breakfast | 0 | - | 4.45 | 100,064 |
| Catholic Countries in Europe | 0 | - | 4.83 | 91,911 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 57,185 |
| European Geography By Letter - B #2 | 0 | - | 4.82 | 72,230 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 76,620 |
| Federal Subjects of Russia | 0 | - | 4.95 | 136,917 |
| History of Austria | 0 | - | 4.69 | 17,428 |
| Regions of France Map Quiz | 0 | - | 4.96 | 139,562 |
| Geography of the French Empire | 0 | - | 4.51 | 26,501 |
| The French Revolution | 0 | - | 4.46 | 23,197 |
| France Multiple Choice | 0 | - | 4.38 | 40,264 |
| History of France Quiz | 0 | - | 4.56 | 42,282 |
| States of Germany Map Quiz | 0 | - | 4.91 | 128,787 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.42 | 23,075 |
| History of Italy | 0 | - | 4.54 | 31,443 |
| Sweden Immigration by Country | 0 | - | 4.54 | 54,704 |
| The Portuguese Empire | 0 | - | 4.54 | 11,832 |
| American to British Word Translation | 0 | - | 4.01 | 115,713 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,232 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 91,068 |
| Counties of England Map Quiz | 0 | - | 4.97 | 301,774 |
| Champions League Winners | 0 | - | 4.91 | 971,692 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 224,003 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 268,266 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 159,915 |
| Departments of France | 0 | - | 4.92 | 48,414 |
| Countries Surrounding Rome | 0 | - | 4.97 | 48,770 |
| England or Wales? | 0 | - | 4.94 | 44,312 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 124,456 |
| Pre-Euro Currencies | 0 | - | 4.43 | 51,895 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.79 | 41,395 |
| Word Scramble - European Countries | 0 | - | 4.73 | 137,696 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 108,214 |
| Slavic Languages | 0 | - | 4.65 | 52,810 |
| Word Chain - France | 0 | - | 4.38 | 42,088 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,022 |
| Italian Foods | 0 | - | 4.30 | 70,500 |
| The Mafia Quiz | 0 | - | 4.46 | 22,898 |
| History of The Netherlands | 0 | - | 4.46 | 16,907 |
| Famous Nordic People | 0 | - | 4.41 | 11,104 |
| Spanish Immigration by Country | 0 | - | 4.61 | 54,638 |
| Canary Islands | 0 | - | 4.61 | 17,213 |
| Switzerland Immigration by Country | 0 | - | 4.78 | 27,729 |
| British Spellings Quiz | 0 | - | 4.07 | 98,203 |
| British Groups of Things | 0 | - | 4.25 | 82,299 |
| British Acronyms | 0 | - | 4.39 | 45,163 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,655 |
| Geography of Scotland | 0 | - | 4.63 | 21,036 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 62,981 |
| French Geography Quiz #1 | 0 | - | 4.88 | 33,766 |
| Geography of Germany | 0 | - | 4.33 | 16,741 |
| History of Germany | 0 | - | 4.38 | 52,041 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 625,489 |
| Iceland... or Ireland? | 0 | - | 4.74 | 56,091 |
| History of Ireland | 0 | - | 4.39 | 23,487 |
| History of Spain Quiz | 0 | - | 4.29 | 20,751 |
| Languages of Spain | 0 | - | 4.36 | 22,771 |
| British to American Word Translation | 0 | - | 3.75 | 252,418 |
| British Foods | 0 | - | 3.88 | 48,003 |
| British and American Word Differences | 0 | - | 2.68 | 45,714 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,283 |
| Bridges of London | 0 | - | 4.17 | 9,907 |
| British Sport Trivia | 0 | - | 4.34 | 20,108 |
| Famous Welsh People | 0 | - | 4.21 | 9,650 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 262,365 |
| Top European Languages on a Map | 0 | - | 4.77 | 128,288 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,071 |
| Famous French People | 0 | - | 4.14 | 24,929 |
| Movies Set in France | 0 | - | 4.26 | 12,948 |
| French Inventions | 0 | - | 4.08 | 13,745 |
| History of Paris | 0 | - | 4.24 | 13,514 |
| Word Chain - Germany | 0 | - | 4.32 | 22,218 |
| The Trojan War | 0 | - | 4.81 | 38,541 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.83 | 106,516 |
| Word Chain - Italy | 0 | - | 4.07 | 22,878 |
| Embarrassing Chapters in Italian History | 0 | - | 4.23 | 11,833 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 82,546 |
| Roman Emperors | 0 | - | 4.96 | 112,468 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,351 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,334 |
| Invasions of Great Britain | 0 | - | 4.51 | 58,638 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,016 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,282 |
| People on Money - England | 0 | - | 4.28 | 16,443 |
| Name a Valid English City | 0 | - | 4.19 | 16,361 |
| English Monarchs in Order by First Letter | 0 | - | 4.37 | 29,887 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 272,453 |
| Australian Capitals | 0 | - | 4.92 | 62,229 |
| European Geography By Letter - A | 0 | - | 4.61 | 130,606 |
| European Geography By Letter - B #1 | 0 | - | 4.70 | 109,113 |
| European Geography By Letter - C | 0 | - | 4.46 | 110,267 |
| European Geography By Letter - D | 0 | - | 4.52 | 104,950 |
| European Geography By Letter - L | 0 | - | 4.52 | 110,299 |
| European Geography By Letter - M | 0 | - | 4.52 | 124,502 |
| European Geography By Letter - P #1 | 0 | - | 4.78 | 94,685 |
| European Geography By Letter - N | 0 | - | 4.43 | 98,104 |
| European Geography By Letter - R | 0 | - | 4.41 | 91,267 |
| European Geography By Letter - V | 0 | - | 4.44 | 90,818 |
| Europe Map Quiz | 0 | - | 5.00 | 4,642,632 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,212 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 70,769 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,222 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,308 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 98,087 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 25,768 |
| Four Letter European Geography #2 | 0 | - | 4.55 | 18,538 |
| Capitals of French Regions | 0 | - | 4.43 | 15,745 |
| Capitals of German States | 0 | - | 4.70 | 28,445 |
| Chancellors of Germany, 1949–present | 0 | - | 4.58 | 22,516 |
| Olympian Gods Quiz | 0 | - | 4.96 | 476,709 |
| Name that Greek Letter | 0 | - | 4.93 | 315,543 |
| Ancient Greek Words | 0 | - | 4.92 | 107,729 |
| Beatles Songs Quiz | 0 | - | 4.97 | 227,688 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 286,524 |
| Africa Map Quiz | 0 | - | 5.00 | 2,070,333 |
| Oceania Map Quiz | 0 | - | 4.98 | 618,317 |
| European Physical Geography | 0 | - | 4.25 | 33,077 |
| History of Russia Quiz | 0 | - | 4.49 | 31,469 |
| Geography of Russia | 0 | - | 4.56 | 21,140 |
| Slovakia... or Slovenia? | 0 | - | 4.70 | 41,273 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 423,918 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 54,048 |
| United Kingdom A-Z | 0 | - | 4.53 | 86,107 |
| Wives of King Henry VIII | 0 | - | 4.55 | 52,741 |
| Countries the UK Declared War On | 0 | - | 4.61 | 120,013 |
| Geography of the British Empire | 0 | - | 4.51 | 38,938 |
| Champions League Top 4 | 0 | - | 4.74 | 127,558 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,419,746 |
| Asia Map Quiz | 0 | - | 4.99 | 878,989 |
| Countries of Africa | 0 | - | 5.00 | 2,428,032 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 42,663 |
| African East Coast | 0 | - | 4.96 | 92,599 |
| Western Africa Map Quiz | 0 | - | 4.97 | 70,446 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 47,683 |
| Australia Map Quiz | 0 | - | 4.94 | 337,662 |
| United States Map Quiz | 0 | - | 4.98 | 4,097,389 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 204,237 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 90,793 |
| Countries That Use the Euro | 0 | - | 4.97 | 96,703 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 356,690 |
| European Geography By Letter - E | 0 | - | 4.22 | 110,705 |
| European Geography By Letter - F | 0 | - | 4.17 | 90,202 |
| European Geography By Letter - H | 0 | - | 4.29 | 93,645 |
| European Geography By Letter - G | 0 | - | 4.26 | 99,715 |
| European Geography By Letter - I | 0 | - | 4.11 | 93,148 |
| European Geography By Letter - K | 0 | - | 4.15 | 67,996 |
| European Geography By Letter - O | 0 | - | 4.29 | 60,888 |
| European Geography by Letter - W | 0 | - | 4.21 | 81,500 |
| European Geography By Letter - T | 0 | - | 4.40 | 74,039 |
| Europe Geography Quiz #3 | 0 | - | 4.33 | 62,707 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 49,650 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 108,797 |
| European Geography A-Z | 0 | - | 4.28 | 48,277 |
| Country Codes of Europe | 0 | - | 3.44 | 13,445 |
| The Only European Country ... | 0 | - | 4.92 | 204,973 |
| European Countries NOT in NATO | 0 | - | 4.88 | 54,919 |
| Austria... or Australia? | 0 | - | 4.73 | 102,585 |
| Presidents of France | 0 | - | 4.25 | 23,029 |
| French Foods | 0 | - | 4.00 | 27,334 |
| Ancient Greek Trivia | 0 | - | 4.61 | 65,990 |
| Figures from Greek Mythology | 0 | - | 4.90 | 178,581 |
| Italian Inventions | 0 | - | 3.86 | 18,322 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,338 |
