| Germany Multiple Choice | 0 | - | 4.84 | 54,230 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,145 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,810 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,433 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,539 |
| States of Germany | 0 | - | 4.96 | 151,389 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,704 |
| Regions of Italy | 0 | - | 4.92 | 75,344 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,129 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,366 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,812 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,639 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,905 |
| Official European Union Languages | 0 | - | 4.97 | 237,852 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,432 |
| Regions of France | 0 | - | 4.78 | 120,150 |
| France Immigration by Country | 0 | - | 4.70 | 76,292 |
| Departments of France | 0 | - | 4.93 | 53,497 |
| Germany True or False? | 0 | - | 4.61 | 48,682 |
| England or Wales? | 0 | - | 4.94 | 45,529 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,910 |
| Geography of the French Empire | 0 | - | 4.45 | 27,011 |
| The French Revolution | 0 | - | 4.46 | 23,879 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,672 |
| History of France | 0 | - | 4.59 | 56,697 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,798 |
| Word Chain - France | 0 | - | 4.38 | 42,705 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,699 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,665 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,951 |
| History of Italy | 0 | - | 4.55 | 31,915 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,590 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,124 |
| Australia True or False | 0 | - | 4.87 | 56,711 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,336 |
| Celtic Nations | 0 | - | 4.69 | 46,882 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,157 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,594 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,873 |
| Capitals of French Regions | 0 | - | 4.45 | 16,026 |
| Counties of England | 0 | - | 4.97 | 793,448 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,188 |
| Famous Germans | 0 | - | 4.50 | 54,893 |
| German Groups of Things | 0 | - | 4.46 | 38,402 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,781 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,980 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,120 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,171 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,936 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,360 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,664 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,692 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,336 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,756 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,486 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,733 |
| History of Austria | 0 | - | 4.70 | 17,816 |
| Famous French People | 0 | - | 4.12 | 28,167 |
| Movies Set in France | 0 | - | 4.26 | 13,104 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,949 |
| French Inventions | 0 | - | 4.08 | 13,883 |
| History of Paris | 0 | - | 4.24 | 13,632 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,327 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,446 |
| The Vikings! | 0 | - | 4.46 | 28,301 |
| The Portuguese Empire | 0 | - | 4.58 | 12,038 |
| American to British Word Translation | 0 | - | 4.13 | 138,504 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,830 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,428 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,805 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,279 |
| Champions League Winners | 0 | - | 4.92 | 1,001,971 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,135 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,950 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,323 |
| Presidents of France | 0 | - | 4.25 | 24,004 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,476 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,450 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,527 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,636 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,370 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,056 |
| Slavic Languages | 0 | - | 4.68 | 54,204 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,542 |
| Italian Foods | 0 | - | 4.31 | 72,533 |
| The Mafia Quiz | 0 | - | 4.46 | 23,261 |
| History of The Netherlands | 0 | - | 4.46 | 17,377 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,386 |
| Canary Islands | 0 | - | 4.61 | 17,449 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,502 |
| British Spellings | 0 | - | 4.06 | 99,369 |
| British Groups of Things | 0 | - | 4.25 | 82,802 |
| British Acronyms | 0 | - | 4.39 | 45,724 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,004 |
| Geography of Scotland | 0 | - | 4.63 | 21,566 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,218 |
| French Foods | 0 | - | 4.00 | 27,651 |
| France A-Z | 0 | - | 4.16 | 38,128 |
| Geography of Germany | 0 | - | 4.35 | 17,144 |
| History of Germany | 0 | - | 4.39 | 52,745 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,222 |
| Name that Greek Letter | 0 | - | 4.93 | 322,789 |
| History of Spain | 0 | - | 4.23 | 21,055 |
| Languages of Spain | 0 | - | 4.36 | 23,257 |
| British to American Word Translation | 0 | - | 3.74 | 254,940 |
| British Foods by Description | 0 | - | 3.94 | 48,301 |
| British and American Word Differences | 0 | - | 2.63 | 46,840 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,560 |
| Bridges of London | 0 | - | 4.17 | 10,085 |
| British Sport Trivia | 0 | - | 4.37 | 20,419 |
| Famous Welsh People | 0 | - | 4.29 | 11,213 |
| Malta Country Quiz | 0 | - | 4.81 | 30,967 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,599 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,160 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,703 |
| History of Russia Quiz | 0 | - | 4.49 | 31,861 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,168 |
| Word Chain - Germany | 0 | - | 4.31 | 22,542 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,817 |
| The Trojan War | 0 | - | 4.83 | 39,604 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,319 |
| Word Chain - Italy | 0 | - | 4.07 | 23,142 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,076 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,343 |
| Roman Emperors | 0 | - | 4.95 | 119,447 |
| Famous Nordic People | 0 | - | 4.34 | 20,009 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,572 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,757 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,309 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,505 |
| People on Money - England | 0 | - | 4.29 | 16,596 |
| Name a Valid English City | 0 | - | 4.19 | 16,688 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,569 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,388 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,630 |
| Australian Capitals | 0 | - | 4.92 | 62,673 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,741 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,167 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,139 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,029 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,491 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,399 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,066 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,840 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,469 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,667 |
| Europe Map Quiz | 0 | - | 5.00 | 4,749,550 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,165 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,819 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,101 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,143 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,828 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,298 |
| Kings of France Quiz | 0 | - | 4.20 | 32,644 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,854 |
| Capitals of German States | 0 | - | 4.74 | 28,904 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,235 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,892 |
| Ancient Greek Words | 0 | - | 4.93 | 111,198 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,277 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,273 |
| Africa Map Quiz | 0 | - | 5.00 | 2,112,277 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,262 |
| European Physical Geography | 0 | - | 4.26 | 33,439 |
| Geography of Russia | 0 | - | 4.57 | 21,495 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,879 |
| France World Cup Squad 2018 | 0 | - | 4.41 | 33,499 |
| Tour de France Winners | 0 | - | 4.27 | 15,310 |
| Embarrassing Chapters in French History | 0 | - | 3.65 | 20,076 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,510 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,900 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,954 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,479 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,506 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,284 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,183 |
| Geography of the British Empire | 0 | - | 4.48 | 39,605 |
| Champions League Top 4 | 0 | - | 4.77 | 135,274 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,882 |
| Asia Map Quiz | 0 | - | 4.99 | 912,127 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,536 |
| Countries of Africa | 0 | - | 5.00 | 2,524,852 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,394 |
| African East Coast | 0 | - | 4.96 | 95,637 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,467 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,305 |
| Australia Map Quiz | 0 | - | 4.94 | 343,504 |
| United States Map Quiz | 0 | - | 4.98 | 4,150,124 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,349 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,514 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,173 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,554 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,471 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,889 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,146 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,763 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,706 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,391 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,111 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,455 |
