| Countries that Beat Switzerland | 0 | - | 4.88 | 41,675 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,891 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,528 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,205 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,772 |
| History of Italy | 0 | - | 4.55 | 31,908 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,471 |
| Regions of Italy | 0 | - | 4.92 | 75,240 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,622 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,869 |
| Official European Union Languages | 0 | - | 4.97 | 237,710 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,347 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,448 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,630 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,363 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,760 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,304 |
| Roman Emperors | 0 | - | 4.95 | 119,309 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,571 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,103 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,319 |
| Celtic Nations | 0 | - | 4.69 | 46,876 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,121 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,409 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,581 |
| Capitals of French Regions | 0 | - | 4.45 | 16,020 |
| Capitals of German States | 0 | - | 4.74 | 28,896 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,211 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,693 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,914 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,636 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,627 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,300 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,716 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,373 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,385 |
| History of Austria | 0 | - | 4.70 | 17,807 |
| Geography of the French Empire | 0 | - | 4.45 | 27,000 |
| The French Revolution | 0 | - | 4.46 | 23,868 |
| France Multiple Choice | 0 | - | 4.38 | 40,686 |
| History of France | 0 | - | 4.59 | 56,649 |
| States of Germany | 0 | - | 4.96 | 151,167 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,425 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,585 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,845 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 49,607 |
| The Vikings! | 0 | - | 4.46 | 28,290 |
| The Portuguese Empire | 0 | - | 4.58 | 12,031 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,225 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,761 |
| American to British Word Translation | 0 | - | 4.13 | 138,350 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,819 |
| Champions League Winners | 0 | - | 4.92 | 1,001,033 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,881 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,784 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,153 |
| Presidents of France | 0 | - | 4.25 | 23,989 |
| Departments of France | 0 | - | 4.93 | 53,394 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,253 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,993 |
| England or Wales? | 0 | - | 4.94 | 45,499 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,307 |
| 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 | 141,315 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,906 |
| Slavic Languages | 0 | - | 4.68 | 54,165 |
| Italian Foods | 0 | - | 4.31 | 72,480 |
| The Mafia Quiz | 0 | - | 4.46 | 23,254 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,155 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,642 |
| Geography of Germany | 0 | - | 4.35 | 17,138 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,772 |
| Name that Greek Letter | 0 | - | 4.93 | 322,607 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,637 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,797 |
| Roman Names for Places | 0 | - | 4.62 | 58,067 |
| History of Spain | 0 | - | 4.29 | 21,045 |
| Languages of Spain | 0 | - | 4.36 | 23,238 |
| British to American Word Translation | 0 | - | 3.74 | 254,917 |
| British Foods by Description | 0 | - | 3.94 | 48,295 |
| British and American Word Differences | 0 | - | 2.63 | 46,828 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,551 |
| Bridges of London | 0 | - | 4.17 | 10,082 |
| British Sport Trivia | 0 | - | 4.37 | 20,412 |
| Famous Welsh People | 0 | - | 4.27 | 10,903 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,444 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,613 |
| History of Russia Quiz | 0 | - | 4.49 | 31,848 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,644 |
| The Trojan War | 0 | - | 4.83 | 39,577 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,205 |
| Word Chain - Italy | 0 | - | 4.07 | 23,136 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,729 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,217 |
| Australian Capitals | 0 | - | 4.92 | 62,662 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,699 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,142 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,121 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,003 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,455 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,353 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,042 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,820 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,448 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,621 |
| Europe Map Quiz | 0 | - | 5.00 | 4,747,055 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,147 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,792 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,085 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,129 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,807 |
| Regions of France | 0 | - | 4.77 | 120,004 |
| France Immigration by Country | 0 | - | 4.72 | 76,235 |
| Famous Germans | 0 | - | 4.50 | 54,855 |
| German Groups of Things | 0 | - | 4.46 | 38,390 |
| Germany True or False? | 0 | - | 4.61 | 48,664 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,748 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,531 |
| Ancient Greek Words | 0 | - | 4.93 | 111,131 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,140 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,077 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,160 |
| British Noble Ranks | 0 | - | 3.85 | 20,405 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,856 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,108 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,173 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,107 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,744 |
| European Physical Geography | 0 | - | 4.26 | 33,430 |
| Geography of Russia | 0 | - | 4.57 | 21,486 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,866 |
| Italian History A-Z | 0 | - | 4.21 | 17,633 |
| Serie A Champions | 0 | - | 4.29 | 57,992 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,026 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,901 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,460 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,467 |
| Champions League Top 4 | 0 | - | 4.77 | 135,029 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,156 |
| Asia Map Quiz | 0 | - | 4.99 | 911,278 |
| Countries of Africa | 0 | - | 5.00 | 2,522,280 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,298 |
| African East Coast | 0 | - | 4.96 | 95,554 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,388 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,231 |
| Australia Map Quiz | 0 | - | 4.94 | 343,330 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,999 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,162 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,481 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,006 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,296 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,447 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,868 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,115 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,735 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,686 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,370 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,096 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,437 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,538 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,664 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,364 |
| European Geography A-Z | 0 | - | 4.29 | 49,124 |
| Country Codes of Europe | 0 | - | 3.46 | 13,678 |
| The Only European Country ... | 0 | - | 4.91 | 215,243 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,378 |
| Austria... or Australia? | 0 | - | 4.68 | 104,120 |
| Word Chain - France | 0 | - | 4.38 | 42,680 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,873 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,845 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,906 |
| Italian Inventions | 0 | - | 3.81 | 18,424 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,397 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,528 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 102,068 |
| History of The Netherlands | 0 | - | 4.46 | 17,369 |
| Canary Islands | 0 | - | 4.61 | 17,441 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,441 |
| British Spellings | 0 | - | 4.06 | 99,359 |
| British Groups of Things | 0 | - | 4.25 | 82,784 |
| British Acronyms | 0 | - | 4.39 | 45,711 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,998 |
| British Monopoly Board | 0 | - | 4.52 | 41,102 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,246 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,280 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,665 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,131 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,273 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,926 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,713 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,859 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,797 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,257 |
| African Island Countries | 0 | - | 4.96 | 101,195 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,680 |
| Australian States and Territories | 0 | - | 4.96 | 141,397 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,149 |
| Australia True or False | 0 | - | 4.87 | 56,684 |
| Flags of North and South America | 0 | - | 4.99 | 370,392 |
