| European Countries by First 2 Letters | 0 | - | 4.95 | 528,224 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,550 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,916 |
| Official European Union Languages | 0 | - | 4.97 | 237,901 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,459 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,969 |
| Slavic Languages | 0 | - | 4.68 | 54,212 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,805 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,701 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,669 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,341 |
| Celtic Nations | 0 | - | 4.69 | 46,886 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,169 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,673 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 169,941 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,242 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,819 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,318 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 96,681 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,714 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,347 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,783 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,520 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,823 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,883 |
| States of Germany | 0 | - | 4.96 | 151,485 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,735 |
| Regions of Italy | 0 | - | 4.92 | 75,375 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,323 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,405 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,866 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,642 |
| Champions League Winners | 0 | - | 4.92 | 1,002,237 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,189 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,981 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,378 |
| Departments of France | 0 | - | 4.93 | 53,533 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,480 |
| England or Wales? | 0 | - | 4.94 | 45,541 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,482 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,533 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,637 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,394 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,085 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,549 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,395 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,229 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,679 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,354 |
| Name that Greek Letter | 0 | - | 4.93 | 322,844 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,631 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,728 |
| History of Russia Quiz | 0 | - | 4.49 | 31,863 |
| The Trojan War | 0 | - | 4.83 | 39,611 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,366 |
| History of Italy | 0 | - | 4.55 | 31,918 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,549 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,358 |
| Roman Emperors | 0 | - | 4.95 | 119,499 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,595 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,135 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,419 |
| Australian Capitals | 0 | - | 4.92 | 62,681 |
| European Geography By Letter - A | 0 | - | 4.61 | 133,245 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,200 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,168 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,047 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,508 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,430 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,082 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,852 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,473 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,679 |
| Europe Map Quiz | 0 | - | 5.00 | 4,750,290 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,173 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,828 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,108 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,149 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,839 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,314 |
| Capitals of French Regions | 0 | - | 4.45 | 16,028 |
| Regions of France | 0 | - | 4.75 | 120,182 |
| France Immigration by Country | 0 | - | 4.70 | 76,307 |
| Famous Germans | 0 | - | 4.50 | 54,914 |
| German Groups of Things | 0 | - | 4.46 | 38,404 |
| Capitals of German States | 0 | - | 4.74 | 28,909 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,241 |
| Germany True or False? | 0 | - | 4.61 | 48,689 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,796 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,022 |
| Ancient Greek Words | 0 | - | 4.93 | 111,220 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,007 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,144 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,178 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,953 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,334 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,304 |
| Africa Map Quiz | 0 | - | 5.00 | 2,112,670 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,407 |
| European Physical Geography | 0 | - | 4.26 | 33,443 |
| Geography of Russia | 0 | - | 4.57 | 21,496 |
| History of Austria | 0 | - | 4.70 | 17,820 |
| Geography of the French Empire | 0 | - | 4.45 | 27,013 |
| The French Revolution | 0 | - | 4.46 | 23,883 |
| France Multiple Choice | 0 | - | 4.38 | 40,689 |
| History of France | 0 | - | 4.59 | 56,717 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,448 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,635 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,917 |
| The Vikings! | 0 | - | 4.46 | 28,305 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,965 |
| The Portuguese Empire | 0 | - | 4.58 | 12,040 |
| American to British Word Translation | 0 | - | 4.14 | 138,558 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,839 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,493 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,532 |
| Champions League Top 4 | 0 | - | 4.77 | 135,349 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,445,192 |
| Asia Map Quiz | 0 | - | 4.99 | 912,509 |
| Countries of Africa | 0 | - | 5.00 | 2,525,661 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,430 |
| African East Coast | 0 | - | 4.96 | 95,653 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,495 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,338 |
| Australia Map Quiz | 0 | - | 4.95 | 343,542 |
| United States Map Quiz | 0 | - | 4.98 | 4,150,507 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,409 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,522 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,219 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,622 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,486 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,903 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,161 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,778 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,719 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,404 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,118 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,459 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,570 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,683 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,558 |
| European Geography A-Z | 0 | - | 4.29 | 49,154 |
| Country Codes of Europe | 0 | - | 3.43 | 13,691 |
| The Only European Country ... | 0 | - | 4.91 | 215,573 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,527 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 27,977 |
| Austria... or Australia? | 0 | - | 4.68 | 104,173 |
| Presidents of France | 0 | - | 4.25 | 24,006 |
| Word Chain - France | 0 | - | 4.38 | 42,708 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,893 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,862 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,142 |
| Italian Foods | 0 | - | 4.30 | 72,548 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,192 |
| The Mafia Quiz | 0 | - | 4.46 | 23,263 |
| History of The Netherlands | 0 | - | 4.46 | 17,383 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,002 |
| Canary Islands | 0 | - | 4.62 | 17,451 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,516 |
| British Spellings | 0 | - | 4.06 | 99,376 |
| British Groups of Things | 0 | - | 4.25 | 82,810 |
| British Acronyms | 0 | - | 4.39 | 45,726 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,007 |
| British Monopoly Board | 0 | - | 4.52 | 41,125 |
| Geography of Scotland | 0 | - | 4.63 | 21,570 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,390 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,043 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,776 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,964 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,436 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,026 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,843 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,950 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,952 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,416 |
| African Island Countries | 0 | - | 4.96 | 101,289 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,849 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,052 |
| Australian States and Territories | 0 | - | 4.96 | 141,510 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,183 |
| Australia True or False | 0 | - | 4.87 | 56,728 |
| Flags of North and South America | 0 | - | 4.99 | 371,078 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,463 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,678 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,081 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,967 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,870 |
| North America Map Quiz | 0 | - | 4.98 | 247,137 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,598 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,548 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,481 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,963 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,739 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,237,351 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,723 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,278 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,830 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,794 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,871 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,373 |
