| Germany Multiple Choice | 0 | - | 4.84 | 54,208 |
| Regions of Italy | 0 | - | 4.92 | 75,256 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,909 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,774 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,196 |
| History of Italy | 0 | - | 4.55 | 31,908 |
| States of Germany | 0 | - | 4.96 | 151,183 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,606 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 50,010 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,239 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,765 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,624 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,873 |
| Official European Union Languages | 0 | - | 4.97 | 237,716 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,358 |
| Germany True or False? | 0 | - | 4.61 | 48,664 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,924 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,453 |
| England or Wales? | 0 | - | 4.94 | 45,505 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,669 |
| France Multiple Choice | 0 | - | 4.38 | 40,686 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,530 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,767 |
| Italian Foods | 0 | - | 4.31 | 72,486 |
| The Mafia Quiz | 0 | - | 4.46 | 23,256 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,677 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,646 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,307 |
| Roman Emperors | 0 | - | 4.95 | 119,356 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,572 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,103 |
| Australia True or False | 0 | - | 4.87 | 56,687 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,321 |
| Celtic Nations | 0 | - | 4.69 | 46,878 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,128 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,423 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,613 |
| Counties of England | 0 | - | 4.97 | 792,887 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,746 |
| Regions of France | 0 | - | 4.77 | 120,021 |
| France Immigration by Country | 0 | - | 4.72 | 76,241 |
| Famous Germans | 0 | - | 4.50 | 54,858 |
| German Groups of Things | 0 | - | 4.46 | 38,390 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,753 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,085 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,161 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,864 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,327 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,638 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,639 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,303 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,721 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,385 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,439 |
| History of Austria | 0 | - | 4.70 | 17,808 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,850 |
| Geography of the French Empire | 0 | - | 4.45 | 27,001 |
| The French Revolution | 0 | - | 4.46 | 23,872 |
| History of France | 0 | - | 4.59 | 56,650 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,205 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,432 |
| Word Chain - Italy | 0 | - | 4.07 | 23,136 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,071 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,851 |
| The Vikings! | 0 | - | 4.46 | 28,290 |
| The Portuguese Empire | 0 | - | 4.58 | 12,032 |
| American to British Word Translation | 0 | - | 4.13 | 138,369 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,819 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,379 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,700 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,262 |
| Champions League Winners | 0 | - | 4.92 | 1,001,104 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,911 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,797 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,167 |
| Departments of France | 0 | - | 4.93 | 53,408 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,283 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,320 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,515 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,628 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,318 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,920 |
| Slavic Languages | 0 | - | 4.68 | 54,168 |
| Word Chain - France | 0 | - | 4.38 | 42,684 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,161 |
| History of The Netherlands | 0 | - | 4.46 | 17,371 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,366 |
| Canary Islands | 0 | - | 4.61 | 17,441 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,452 |
| British Spellings | 0 | - | 4.06 | 99,360 |
| British Groups of Things | 0 | - | 4.25 | 82,787 |
| British Acronyms | 0 | - | 4.39 | 45,714 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,999 |
| Geography of Scotland | 0 | - | 4.63 | 21,557 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,161 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,644 |
| Geography of Germany | 0 | - | 4.35 | 17,139 |
| History of Germany | 0 | - | 4.39 | 52,731 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,851 |
| Name that Greek Letter | 0 | - | 4.93 | 322,630 |
| Italian Inventions | 0 | - | 3.81 | 18,425 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,640 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,802 |
| Roman Names for Places | 0 | - | 4.62 | 58,072 |
| History of Spain | 0 | - | 4.29 | 21,045 |
| Languages of Spain | 0 | - | 4.36 | 23,239 |
| British to American Word Translation | 0 | - | 3.74 | 254,921 |
| British Foods by Description | 0 | - | 3.94 | 48,295 |
| British and American Word Differences | 0 | - | 2.63 | 46,832 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,552 |
| Bridges of London | 0 | - | 4.17 | 10,082 |
| British Sport Trivia | 0 | - | 4.37 | 20,413 |
| Famous Welsh People | 0 | - | 4.27 | 10,964 |
| Malta Country Quiz | 0 | - | 4.81 | 30,947 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,459 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,123 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,621 |
| History of Russia Quiz | 0 | - | 4.49 | 31,851 |
| Famous French People | 0 | - | 4.12 | 28,149 |
| Movies Set in France | 0 | - | 4.26 | 13,100 |
| French Inventions | 0 | - | 4.08 | 13,879 |
| History of Paris | 0 | - | 4.24 | 13,629 |
| Word Chain - Germany | 0 | - | 4.31 | 22,532 |
| The Trojan War | 0 | - | 4.83 | 39,581 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,218 |
| Famous Nordic People | 0 | - | 4.34 | 19,999 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,570 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,732 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,306 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,503 |
| People on Money - England | 0 | - | 4.29 | 16,591 |
| Name a Valid English City | 0 | - | 4.19 | 16,681 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,519 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,232 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,620 |
| Australian Capitals | 0 | - | 4.92 | 62,665 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,702 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,146 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,122 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,005 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,458 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,356 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,044 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,823 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,453 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,626 |
| Europe Map Quiz | 0 | - | 5.00 | 4,747,376 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,149 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,795 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,087 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,130 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,812 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,261 |
| Capitals of French Regions | 0 | - | 4.45 | 16,021 |
| Capitals of German States | 0 | - | 4.74 | 28,897 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,213 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,582 |
| Ancient Greek Words | 0 | - | 4.93 | 111,141 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,140 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,134 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,184 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,218 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,800 |
| European Physical Geography | 0 | - | 4.26 | 33,432 |
| Geography of Russia | 0 | - | 4.57 | 21,487 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,867 |
| Italian History A-Z | 0 | - | 4.21 | 17,634 |
| Serie A Champions | 0 | - | 4.29 | 57,997 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,030 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,912 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,462 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,468 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,271 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,126 |
| Geography of the British Empire | 0 | - | 4.48 | 39,589 |
| Champions League Top 4 | 0 | - | 4.77 | 135,047 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,209 |
| Asia Map Quiz | 0 | - | 4.99 | 911,386 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,499 |
| Countries of Africa | 0 | - | 5.00 | 2,522,591 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,310 |
| African East Coast | 0 | - | 4.96 | 95,565 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,394 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,243 |
| Australia Map Quiz | 0 | - | 4.94 | 343,353 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,130 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,186 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,484 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,027 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,317 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,451 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,872 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,118 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,738 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,687 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,375 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,098 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,440 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,540 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,665 |
