| European Countries by First 2 Letters | 0 | - | 4.95 | 526,974 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,738 |
| Official European Union Languages | 0 | - | 4.97 | 237,298 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,117 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,907 |
| Celtic Nations | 0 | - | 4.69 | 46,841 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,634 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,623 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,264 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,977 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,690 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,834 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,129 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,649 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,228 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,353 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,581 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,858 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,522 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,411 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,514 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,063 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,714 |
| States of Germany | 0 | - | 4.96 | 150,664 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,205 |
| Regions of Italy | 0 | - | 4.92 | 74,976 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,989 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,795 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,531 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,811 |
| Champions League Winners | 0 | - | 4.92 | 998,661 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,484 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,614 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,125 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,492 |
| Slavic Languages | 0 | - | 4.68 | 54,076 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,485 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,294 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,126 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,711 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,623 |
| Departments of France | 0 | - | 4.93 | 53,066 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,409 |
| England or Wales? | 0 | - | 4.94 | 45,417 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,871 |
| Australian Capitals | 0 | - | 4.92 | 62,614 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,198 |
| Country Codes of Europe | 0 | - | 3.46 | 13,664 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,379 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,998 |
| History of Russia Quiz | 0 | - | 4.49 | 31,819 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,609 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,573 |
| Capitals of French Regions | 0 | - | 4.45 | 16,006 |
| Capitals of German States | 0 | - | 4.74 | 28,866 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,152 |
| History of Italy | 0 | - | 4.55 | 31,864 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,325 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,524 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,038 |
| Africa Map Quiz | 0 | - | 5.00 | 2,107,534 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,994 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,583 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,045 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,009 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,889 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,366 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,153 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,966 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,739 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,113 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,474 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,057 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,699 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,015 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,055 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,714 |
| Regions of France | 0 | - | 4.78 | 119,642 |
| France Immigration by Country | 0 | - | 4.72 | 76,078 |
| Famous Germans | 0 | - | 4.50 | 54,740 |
| German Groups of Things | 0 | - | 4.46 | 38,349 |
| Germany True or False? | 0 | - | 4.61 | 48,606 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,614 |
| The Trojan War | 0 | - | 4.83 | 39,501 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,385 |
| Name that Greek Letter | 0 | - | 4.94 | 322,125 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,888 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,727 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,174 |
| Roman Emperors | 0 | - | 4.95 | 118,820 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,948 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,102 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,156 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,584 |
| Asia Map Quiz | 0 | - | 4.99 | 908,920 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,031 |
| African East Coast | 0 | - | 4.96 | 95,291 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,182 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,040 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,636 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,371 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,523 |
| European Physical Geography | 0 | - | 4.26 | 33,399 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,979 |
| The Only European Country ... | 0 | - | 4.91 | 214,570 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,975 |
| Geography of Russia | 0 | - | 4.57 | 21,453 |
| History of Austria | 0 | - | 4.70 | 17,779 |
| Presidents of France | 0 | - | 4.25 | 23,942 |
| Geography of the French Empire | 0 | - | 4.45 | 26,965 |
| The French Revolution | 0 | - | 4.46 | 23,832 |
| France Multiple Choice | 0 | - | 4.38 | 40,662 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,409 |
| The Vikings! | 0 | - | 4.46 | 28,268 |
| The Portuguese Empire | 0 | - | 4.54 | 12,008 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,978 |
| American to British Word Translation | 0 | - | 4.13 | 137,347 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,772 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,919 |
| Countries of Africa | 0 | - | 5.00 | 2,514,814 |
| Australia Map Quiz | 0 | - | 4.94 | 342,897 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,808 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,819 |
| History of France | 0 | - | 4.59 | 56,388 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,472 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,763 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,350 |
| Champions League Top 4 | 0 | - | 4.77 | 134,399 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,819 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,259 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,389 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,350 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,788 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,026 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,644 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,613 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,297 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,028 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,368 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,459 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,592 |
| European Geography A-Z | 0 | - | 4.28 | 49,059 |
| Word Chain - France | 0 | - | 4.38 | 42,629 |
| Ancient Greek Words | 0 | - | 4.92 | 110,927 |
| Italian Foods | 0 | - | 4.31 | 72,326 |
| The Mafia Quiz | 0 | - | 4.46 | 23,224 |
| History of The Netherlands | 0 | - | 4.46 | 17,345 |
| Canary Islands | 0 | - | 4.61 | 17,424 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,279 |
| British Spellings | 0 | - | 4.07 | 99,315 |
| British Groups of Things | 0 | - | 4.25 | 82,734 |
| British Acronyms | 0 | - | 4.39 | 45,668 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,975 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,426 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,605 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,610 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,543 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,172 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,927 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,745 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,502 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,678 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,454 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,898 |
| African Island Countries | 0 | - | 4.96 | 100,987 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,084 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,857 |
| Australian States and Territories | 0 | - | 4.96 | 141,155 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,078 |
| Australia Country Quiz | 0 | - | 4.43 | 69,364 |
| Australia True or False | 0 | - | 4.87 | 56,591 |
| Flags of North and South America | 0 | - | 4.99 | 368,874 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,273 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,355 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,567 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,872 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,014,870 |
| North America Map Quiz | 0 | - | 4.98 | 245,684 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,462 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,947 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,973 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,777 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,599 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,230,941 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,796 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,942 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,524 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,920 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,638 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,976 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,517 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,373 |
| Slavic Countries | 0 | - | 4.96 | 111,060 |
| Austria... or Australia? | 0 | - | 4.68 | 104,001 |
| Geography of Germany | 0 | - | 4.35 | 17,116 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,828 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,807 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,068 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,467 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,732 |
