| Germany Multiple Choice | 0 | - | 4.84 | 54,139 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,674 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,633 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,180 |
| Capitals of German States | 0 | - | 4.74 | 28,872 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,164 |
| States of Germany | 0 | - | 4.96 | 150,746 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,235 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,587 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,763 |
| Official European Union Languages | 0 | - | 4.97 | 237,372 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,157 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,024 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,411 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,495 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,306 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,676 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,275 |
| Celtic Nations | 0 | - | 4.69 | 46,852 |
| Capitals of French Regions | 0 | - | 4.45 | 16,009 |
| History of Italy | 0 | - | 4.55 | 31,870 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,347 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,532 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,051 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,009 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,887 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,946 |
| Geography of Germany | 0 | - | 4.35 | 17,119 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,632 |
| Famous Germans | 0 | - | 4.50 | 54,760 |
| German Groups of Things | 0 | - | 4.46 | 38,355 |
| Germany True or False? | 0 | - | 4.61 | 48,615 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,536 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,449 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,248 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,540 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,122 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,845 |
| History of Austria | 0 | - | 4.70 | 17,780 |
| Geography of the French Empire | 0 | - | 4.45 | 26,975 |
| The French Revolution | 0 | - | 4.46 | 23,840 |
| France Multiple Choice | 0 | - | 4.38 | 40,667 |
| Regions of Italy | 0 | - | 4.92 | 75,007 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,008 |
| The Vikings! | 0 | - | 4.46 | 28,272 |
| The Portuguese Empire | 0 | - | 4.58 | 12,011 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,859 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,575 |
| American to British Word Translation | 0 | - | 4.13 | 137,619 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,779 |
| Champions League Winners | 0 | - | 4.92 | 999,150 |
| Presidents of France | 0 | - | 4.25 | 23,949 |
| History of France | 0 | - | 4.59 | 56,441 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,980 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,487 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,617 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,164 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,587 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,272 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,789 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,724 |
| Slavic Languages | 0 | - | 4.68 | 54,096 |
| Departments of France | 0 | - | 4.93 | 53,103 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,410 |
| England or Wales? | 0 | - | 4.94 | 45,434 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,967 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,990 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,027 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,583 |
| History of Spain | 0 | - | 4.29 | 21,031 |
| Languages of Spain | 0 | - | 4.36 | 23,200 |
| British to American Word Translation | 0 | - | 3.75 | 254,842 |
| British Foods by Description | 0 | - | 3.94 | 48,277 |
| British and American Word Differences | 0 | - | 2.64 | 46,802 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,533 |
| Bridges of London | 0 | - | 4.17 | 10,069 |
| British Sport Trivia | 0 | - | 4.37 | 20,390 |
| Famous Welsh People | 0 | - | 4.21 | 9,786 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,886 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,426 |
| History of Russia Quiz | 0 | - | 4.49 | 31,825 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,615 |
| History of Germany | 0 | - | 4.39 | 52,683 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,583 |
| Name that Greek Letter | 0 | - | 4.94 | 322,198 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,665 |
| Europe Map Quiz | 0 | - | 5.00 | 4,740,477 |
| Word Chain - Germany | 0 | - | 4.31 | 22,506 |
| The Trojan War | 0 | - | 4.83 | 39,513 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,949 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,191 |
| Roman Emperors | 0 | - | 4.95 | 118,878 |
| British Noble Ranks | 0 | - | 3.85 | 20,388 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,313 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,269 |
| Australian Capitals | 0 | - | 4.92 | 62,630 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,596 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,060 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,028 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,908 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,377 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,183 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,972 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,745 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,120 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,495 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,071 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,713 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,023 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,060 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,723 |
| Regions of France | 0 | - | 4.78 | 119,683 |
| France Immigration by Country | 0 | - | 4.72 | 76,099 |
| German Loan Words | 0 | - | 4.27 | 135,546 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,631 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,611 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,747 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,972 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,110 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,452 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,866 |
| Asia Map Quiz | 0 | - | 4.99 | 909,330 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,094 |
| African East Coast | 0 | - | 4.96 | 95,351 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,214 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,058 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,727 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,396 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,589 |
| European Physical Geography | 0 | - | 4.26 | 33,406 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,044 |
| Country Codes of Europe | 0 | - | 3.46 | 13,666 |
| The Only European Country ... | 0 | - | 4.91 | 214,680 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,037 |
| Geography of Russia | 0 | - | 4.57 | 21,458 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,826 |
| German History A-Z | 0 | - | 4.49 | 24,486 |
| Ancient Greek Words | 0 | - | 4.93 | 110,960 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,747 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,777 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,366 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,433 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,678 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,840 |
| Champions League Top 4 | 0 | - | 4.77 | 134,542 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,972 |
| Countries of Africa | 0 | - | 5.00 | 2,516,016 |
| Australia Map Quiz | 0 | - | 4.94 | 342,967 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,938 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,897 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,365 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,795 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,036 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,656 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,618 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,306 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,035 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,375 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,465 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,600 |
| European Geography A-Z | 0 | - | 4.28 | 49,075 |
| Austria... or Australia? | 0 | - | 4.68 | 104,021 |
| Word Chain - France | 0 | - | 4.38 | 42,640 |
| Bundesliga Champions | 0 | - | 4.24 | 55,916 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 45,208 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,833 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,814 |
| Italian Foods | 0 | - | 4.31 | 72,352 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,607 |
| History of The Netherlands | 0 | - | 4.46 | 17,348 |
| Canary Islands | 0 | - | 4.61 | 17,426 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,300 |
| British Spellings | 0 | - | 4.07 | 99,324 |
| British Groups of Things | 0 | - | 4.25 | 82,741 |
| British Acronyms | 0 | - | 4.39 | 45,671 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,980 |
| British Monopoly Board | 0 | - | 4.52 | 41,082 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,333 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,567 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,499 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,993 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,783 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,537 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,708 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,508 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,954 |
| African Island Countries | 0 | - | 4.96 | 101,025 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,164 |
| Australian States and Territories | 0 | - | 4.96 | 141,197 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,093 |
| Australia True or False | 0 | - | 4.87 | 56,608 |
| Flags of North and South America | 0 | - | 4.99 | 369,147 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,315 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,399 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,629 |
| South America Map Quiz | 0 | - | 5.00 | 1,543,182 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,015,354 |
| North America Map Quiz | 0 | - | 4.98 | 245,854 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,473 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,135 |
