| Germany Multiple Choice | 0 | - | 4.84 | 54,149 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,697 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,643 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,288 |
| Capitals of German States | 0 | - | 4.74 | 28,881 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,170 |
| States of Germany | 0 | - | 4.96 | 150,804 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,261 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,599 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,785 |
| Official European Union Languages | 0 | - | 4.97 | 237,435 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,188 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,108 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,414 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,503 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,314 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,695 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,295 |
| Celtic Nations | 0 | - | 4.69 | 46,857 |
| Capitals of French Regions | 0 | - | 4.45 | 16,011 |
| History of Italy | 0 | - | 4.55 | 31,875 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,369 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,538 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,061 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,033 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,005 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,069 |
| Geography of Germany | 0 | - | 4.35 | 17,121 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,842 |
| Famous Germans | 0 | - | 4.50 | 54,783 |
| German Groups of Things | 0 | - | 4.46 | 38,360 |
| Germany True or False? | 0 | - | 4.61 | 48,624 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,553 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,476 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,259 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,570 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,182 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,932 |
| History of Austria | 0 | - | 4.70 | 17,786 |
| Geography of the French Empire | 0 | - | 4.45 | 26,978 |
| The French Revolution | 0 | - | 4.46 | 23,844 |
| France Multiple Choice | 0 | - | 4.38 | 40,670 |
| Regions of Italy | 0 | - | 4.92 | 75,040 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,032 |
| The Vikings! | 0 | - | 4.46 | 28,273 |
| The Portuguese Empire | 0 | - | 4.58 | 12,016 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,962 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,626 |
| American to British Word Translation | 0 | - | 4.13 | 137,810 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,783 |
| Champions League Winners | 0 | - | 4.92 | 999,508 |
| Presidents of France | 0 | - | 4.25 | 23,952 |
| History of France | 0 | - | 4.59 | 56,471 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,982 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,492 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,620 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,193 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,647 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,403 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,050 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,825 |
| Slavic Languages | 0 | - | 4.68 | 54,106 |
| Departments of France | 0 | - | 4.93 | 53,138 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,415 |
| England or Wales? | 0 | - | 4.94 | 45,447 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,020 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,081 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,043 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,603 |
| History of Spain | 0 | - | 4.29 | 21,033 |
| Languages of Spain | 0 | - | 4.36 | 23,209 |
| British to American Word Translation | 0 | - | 3.74 | 254,857 |
| British Foods by Description | 0 | - | 3.94 | 48,280 |
| British and American Word Differences | 0 | - | 2.64 | 46,809 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,534 |
| Bridges of London | 0 | - | 4.17 | 10,069 |
| British Sport Trivia | 0 | - | 4.37 | 20,393 |
| Famous Welsh People | 0 | - | 4.21 | 9,788 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,936 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,462 |
| History of Russia Quiz | 0 | - | 4.49 | 31,828 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,621 |
| History of Germany | 0 | - | 4.39 | 52,693 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,774 |
| Name that Greek Letter | 0 | - | 4.93 | 322,250 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,672 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,449 |
| Word Chain - Germany | 0 | - | 4.31 | 22,511 |
| The Trojan War | 0 | - | 4.83 | 39,524 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,986 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,211 |
| Roman Emperors | 0 | - | 4.95 | 118,997 |
| British Noble Ranks | 0 | - | 3.85 | 20,393 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,839 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,554 |
| Australian Capitals | 0 | - | 4.92 | 62,641 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,609 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,073 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,041 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,923 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,386 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,205 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,980 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,750 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,209 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,510 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,088 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,724 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,036 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,075 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,739 |
| Regions of France | 0 | - | 4.78 | 119,730 |
| France Immigration by Country | 0 | - | 4.72 | 76,120 |
| German Loan Words | 0 | - | 4.27 | 135,564 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,656 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,737 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,775 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,992 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,122 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,690 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,061 |
| Asia Map Quiz | 0 | - | 4.99 | 909,719 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,142 |
| African East Coast | 0 | - | 4.96 | 95,384 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,248 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,082 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,799 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,410 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,656 |
| European Physical Geography | 0 | - | 4.26 | 33,410 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,099 |
| Country Codes of Europe | 0 | - | 3.46 | 13,666 |
| The Only European Country ... | 0 | - | 4.91 | 214,781 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,084 |
| Geography of Russia | 0 | - | 4.57 | 21,461 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,833 |
| German History A-Z | 0 | - | 4.49 | 24,491 |
| Ancient Greek Words | 0 | - | 4.93 | 110,990 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,767 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,789 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,374 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,438 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,762 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,994 |
| Champions League Top 4 | 0 | - | 4.77 | 134,631 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,010 |
| Countries of Africa | 0 | - | 5.00 | 2,516,934 |
| Australia Map Quiz | 0 | - | 4.94 | 343,027 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,438 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,967 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,378 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,803 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,046 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,668 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,624 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,315 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,038 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,379 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,478 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,609 |
| European Geography A-Z | 0 | - | 4.28 | 49,083 |
| Austria... or Australia? | 0 | - | 4.68 | 104,039 |
| Word Chain - France | 0 | - | 4.38 | 42,655 |
| Bundesliga Champions | 0 | - | 4.24 | 55,952 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 45,232 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,844 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,821 |
| Italian Foods | 0 | - | 4.31 | 72,386 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,715 |
| History of The Netherlands | 0 | - | 4.46 | 17,350 |
| Canary Islands | 0 | - | 4.61 | 17,428 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,316 |
| British Spellings | 0 | - | 4.07 | 99,332 |
| British Groups of Things | 0 | - | 4.25 | 82,744 |
| British Acronyms | 0 | - | 4.39 | 45,676 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,984 |
| British Monopoly Board | 0 | - | 4.52 | 41,083 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,483 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,584 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,796 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,040 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,811 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,570 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,739 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,561 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,012 |
| African Island Countries | 0 | - | 4.96 | 101,049 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,241 |
| Australian States and Territories | 0 | - | 4.96 | 141,229 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,102 |
| Australia True or False | 0 | - | 4.87 | 56,621 |
| Flags of North and South America | 0 | - | 4.99 | 369,336 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,330 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,426 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,667 |
| South America Map Quiz | 0 | - | 5.00 | 1,543,454 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,015,710 |
| North America Map Quiz | 0 | - | 4.98 | 245,977 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,488 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,280 |
