| European Countries by First 2 Letters | 0 | - | 4.95 | 527,385 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,165 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,708 |
| States of Germany | 0 | - | 4.96 | 150,887 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,286 |
| Regions of Italy | 0 | - | 4.92 | 75,061 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,048 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,027 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,653 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,605 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,802 |
| Official European Union Languages | 0 | - | 4.97 | 237,508 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,226 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,676 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,244 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,711 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,648 |
| History of Italy | 0 | - | 4.55 | 31,880 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,389 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,545 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,070 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,302 |
| Celtic Nations | 0 | - | 4.69 | 46,861 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,051 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,053 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,167 |
| Counties of England | 0 | - | 4.97 | 791,846 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,078 |
| Regions of France | 0 | - | 4.78 | 119,772 |
| France Immigration by Country | 0 | - | 4.72 | 76,139 |
| Famous Germans | 0 | - | 4.50 | 54,796 |
| German Groups of Things | 0 | - | 4.46 | 38,368 |
| Germany True or False? | 0 | - | 4.61 | 48,633 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,805 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,006 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,128 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,767 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,582 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,515 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,268 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,618 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,223 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,004 |
| History of Austria | 0 | - | 4.70 | 17,792 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,644 |
| Geography of the French Empire | 0 | - | 4.45 | 26,983 |
| The French Revolution | 0 | - | 4.46 | 23,848 |
| France Multiple Choice | 0 | - | 4.38 | 40,673 |
| History of France | 0 | - | 4.59 | 56,505 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,082 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,418 |
| The Vikings! | 0 | - | 4.46 | 28,278 |
| The Portuguese Empire | 0 | - | 4.58 | 12,022 |
| American to British Word Translation | 0 | - | 4.13 | 138,017 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,793 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,270 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,515 |
| Champions League Winners | 0 | - | 4.92 | 999,885 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,518 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,536 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,908 |
| Departments of France | 0 | - | 4.93 | 53,165 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,419 |
| England or Wales? | 0 | - | 4.94 | 45,457 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,092 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,494 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,622 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,215 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,702 |
| Slavic Languages | 0 | - | 4.68 | 54,123 |
| Word Chain - France | 0 | - | 4.38 | 42,662 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,509 |
| Italian Foods | 0 | - | 4.31 | 72,412 |
| The Mafia Quiz | 0 | - | 4.46 | 23,238 |
| History of The Netherlands | 0 | - | 4.46 | 17,351 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,319 |
| Canary Islands | 0 | - | 4.61 | 17,428 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,329 |
| British Spellings | 0 | - | 4.07 | 99,337 |
| British Groups of Things | 0 | - | 4.25 | 82,752 |
| British Acronyms | 0 | - | 4.39 | 45,687 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,986 |
| Geography of Scotland | 0 | - | 4.63 | 21,526 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,070 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,612 |
| Geography of Germany | 0 | - | 4.35 | 17,126 |
| History of Germany | 0 | - | 4.39 | 52,699 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,059 |
| Name that Greek Letter | 0 | - | 4.93 | 322,337 |
| History of Spain | 0 | - | 4.29 | 21,036 |
| Languages of Spain | 0 | - | 4.36 | 23,218 |
| British to American Word Translation | 0 | - | 3.74 | 254,875 |
| British Foods by Description | 0 | - | 3.94 | 48,283 |
| British and American Word Differences | 0 | - | 2.63 | 46,813 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,538 |
| Bridges of London | 0 | - | 4.17 | 10,070 |
| British Sport Trivia | 0 | - | 4.37 | 20,398 |
| Famous Welsh People | 0 | - | 4.21 | 9,788 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,213 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,497 |
| History of Russia Quiz | 0 | - | 4.49 | 31,831 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,625 |
| Famous French People | 0 | - | 4.12 | 28,110 |
| Movies Set in France | 0 | - | 4.26 | 13,094 |
| French Inventions | 0 | - | 4.08 | 13,873 |
| History of Paris | 0 | - | 4.24 | 13,628 |
| Word Chain - Germany | 0 | - | 4.31 | 22,515 |
| The Trojan War | 0 | - | 4.83 | 39,536 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,038 |
| Word Chain - Italy | 0 | - | 4.07 | 23,129 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,064 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,229 |
| Roman Emperors | 0 | - | 4.95 | 119,049 |
| Famous Nordic People | 0 | - | 4.34 | 19,957 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,561 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,690 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,281 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,492 |
| People on Money - England | 0 | - | 4.29 | 16,583 |
| Name a Valid English City | 0 | - | 4.19 | 16,663 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,487 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,016 |
| Australian Capitals | 0 | - | 4.92 | 62,642 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,639 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,096 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,074 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,947 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,417 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,254 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,005 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,783 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,414 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,561 |
| Europe Map Quiz | 0 | - | 5.00 | 4,742,528 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,098 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,742 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,044 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,090 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,774 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,778 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,144 |
| Capitals of French Regions | 0 | - | 4.45 | 16,012 |
| Capitals of German States | 0 | - | 4.74 | 28,884 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,179 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,917 |
| Ancient Greek Words | 0 | - | 4.93 | 111,023 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,853 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,033 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,416 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,832 |
| European Physical Geography | 0 | - | 4.26 | 33,413 |
| Geography of Russia | 0 | - | 4.57 | 21,463 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,836 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,830 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,790 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,798 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,387 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,441 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,255 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,047 |
| Geography of the British Empire | 0 | - | 4.48 | 39,566 |
| Champions League Top 4 | 0 | - | 4.77 | 134,738 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,388 |
| Asia Map Quiz | 0 | - | 4.99 | 910,020 |
| Countries of Africa | 0 | - | 5.00 | 2,518,007 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,168 |
| African East Coast | 0 | - | 4.96 | 95,425 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,285 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,114 |
| Australia Map Quiz | 0 | - | 4.94 | 343,090 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,986 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,879 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,420 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,727 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,038 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,399 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,829 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,068 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,693 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,654 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,339 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,059 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,414 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,492 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,635 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,161 |
| European Geography A-Z | 0 | - | 4.28 | 49,091 |
| Country Codes of Europe | 0 | - | 3.46 | 13,671 |
| The Only European Country ... | 0 | - | 4.91 | 214,869 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,149 |
| Austria... or Australia? | 0 | - | 4.68 | 104,054 |
| Presidents of France | 0 | - | 4.25 | 23,958 |
| French Foods | 0 | - | 4.00 | 27,631 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,854 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,825 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,658 |
| Italian Inventions | 0 | - | 3.81 | 18,422 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,111 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,985 |
| Biggest Immigrant Groups by Decade in the UK | 0 | - | 4.63 | 24,732 |
