| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,918 |
| Official European Union Languages | 0 | - | 4.97 | 237,902 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,460 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,232 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,245 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,821 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,554 |
| States of Germany | 0 | - | 4.96 | 151,493 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,737 |
| Regions of Italy | 0 | - | 4.92 | 75,378 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,329 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,406 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,866 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,642 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,972 |
| History of Austria | 0 | - | 4.70 | 17,820 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,839 |
| Slavic Languages | 0 | - | 4.68 | 54,212 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,805 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,701 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,729 |
| History of Italy | 0 | - | 4.55 | 31,918 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,549 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,595 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,135 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,416 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,598 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,963 |
| 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 | 87,170 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,675 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 169,941 |
| Languages of Spain | 0 | - | 4.36 | 23,262 |
| Counties of England | 0 | - | 4.97 | 793,635 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,329 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,137 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,393 |
| Regions of France | 0 | - | 4.75 | 120,183 |
| France Immigration by Country | 0 | - | 4.70 | 76,308 |
| Famous Germans | 0 | - | 4.50 | 54,920 |
| German Groups of Things | 0 | - | 4.46 | 38,404 |
| Germany True or False? | 0 | - | 4.61 | 48,689 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,798 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,012 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,146 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,178 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,954 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 96,691 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,717 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,347 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,802 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,523 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,826 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,971 |
| 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 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,364 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,448 |
| The Vikings! | 0 | - | 4.46 | 28,306 |
| The Portuguese Empire | 0 | - | 4.58 | 12,040 |
| American to British Word Translation | 0 | - | 4.14 | 138,562 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,451 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,863 |
| Champions League Winners | 0 | - | 4.92 | 1,002,255 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,193 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,994 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,379 |
| Departments of France | 0 | - | 4.93 | 53,536 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,481 |
| England or Wales? | 0 | - | 4.94 | 45,541 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,486 |
| 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 | 141,396 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,086 |
| Austria... or Australia? | 0 | - | 4.68 | 104,173 |
| Word Chain - France | 0 | - | 4.38 | 42,709 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,549 |
| Italian Foods | 0 | - | 4.30 | 72,548 |
| The Mafia Quiz | 0 | - | 4.46 | 23,263 |
| History of The Netherlands | 0 | - | 4.46 | 17,383 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,395 |
| Canary Islands | 0 | - | 4.62 | 17,451 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,517 |
| British Spellings | 0 | - | 4.06 | 99,376 |
| British Groups of Things | 0 | - | 4.25 | 82,811 |
| British Acronyms | 0 | - | 4.39 | 45,728 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,007 |
| Geography of Scotland | 0 | - | 4.63 | 21,570 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,230 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,679 |
| Geography of Germany | 0 | - | 4.35 | 17,147 |
| History of Germany | 0 | - | 4.39 | 52,749 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,364 |
| Name that Greek Letter | 0 | - | 4.93 | 322,844 |
| History of Spain | 0 | - | 4.23 | 21,058 |
| British to American Word Translation | 0 | - | 3.74 | 254,950 |
| British Foods by Description | 0 | - | 3.94 | 48,303 |
| British and American Word Differences | 0 | - | 2.63 | 46,844 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,562 |
| Bridges of London | 0 | - | 4.17 | 10,087 |
| British Sport Trivia | 0 | - | 4.37 | 20,421 |
| Famous Welsh People | 0 | - | 4.29 | 11,261 |
| Malta Country Quiz | 0 | - | 4.81 | 30,969 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,511 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,632 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 218,670 |
| History of Russia Quiz | 0 | - | 4.49 | 31,863 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,669 |
| Famous French People | 0 | - | 4.12 | 28,745 |
| Movies Set in France | 0 | - | 4.26 | 13,107 |
| French Inventions | 0 | - | 4.08 | 13,885 |
| History of Paris | 0 | - | 4.24 | 13,633 |
| Word Chain - Germany | 0 | - | 4.31 | 22,547 |
| The Trojan War | 0 | - | 4.83 | 39,611 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,367 |
| Word Chain - Italy | 0 | - | 4.07 | 23,145 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,078 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,358 |
| Roman Emperors | 0 | - | 4.95 | 119,499 |
| Famous Nordic People | 0 | - | 4.34 | 20,018 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,577 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,766 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,318 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,506 |
| People on Money - England | 0 | - | 4.29 | 16,597 |
| Name a Valid English City | 0 | - | 4.19 | 16,691 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,584 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,425 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,247 |
| Top World Languages | 0 | - | 4.92 | 818,760 |
| Australian Capitals | 0 | - | 4.92 | 62,681 |
| European Geography By Letter - A | 0 | - | 4.61 | 133,653 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,225 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,185 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,062 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,514 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,433 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,086 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,858 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,477 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,685 |
| Europe Map Quiz | 0 | - | 5.00 | 4,750,347 |
| 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 | 70,110 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,149 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,850 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,314 |
| Capitals of French Regions | 0 | - | 4.45 | 16,028 |
| Capitals of German States | 0 | - | 4.74 | 28,910 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,241 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,029 |
| Ancient Greek Words | 0 | - | 4.93 | 111,220 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,336 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,307 |
| Countries by Official Language | 0 | - | 4.95 | 194,396 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,214 |
| Places in their Native Language #2 | 0 | - | 4.81 | 132,522 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,213 |
| Countries in their Native Language | 0 | - | 4.99 | 197,961 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,098 |
| Africa Map Quiz | 0 | - | 5.00 | 2,112,679 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,131 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,422 |
| European Physical Geography | 0 | - | 4.26 | 33,443 |
| Geography of Russia | 0 | - | 4.57 | 21,496 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,883 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,638 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,917 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,965 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,495 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,284 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,535 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,285 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,202 |
| Geography of the British Empire | 0 | - | 4.48 | 39,613 |
| Champions League Top 4 | 0 | - | 4.77 | 135,356 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,445,201 |
| Asia Map Quiz | 0 | - | 4.99 | 912,523 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,867 |
| Countries of Africa | 0 | - | 5.00 | 2,525,699 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,432 |
| African East Coast | 0 | - | 4.96 | 95,654 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,497 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,343 |
| Australia Map Quiz | 0 | - | 4.95 | 343,544 |
| United States Map Quiz | 0 | - | 4.98 | 4,150,527 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,414 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,522 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,220 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,623 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,496 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,911 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,168 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,785 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,723 |
