| Germany Multiple Choice | 0 | - | 4.84 | 54,365 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,023 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,850 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,661 |
| Capitals of German States | 0 | - | 4.74 | 28,956 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,345 |
| States of Germany | 0 | - | 4.96 | 152,673 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,064 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,708 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,153 |
| Official European Union Languages | 0 | - | 4.97 | 238,563 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,895 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,293 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,624 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,475 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,000 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,388 |
| Celtic Nations | 0 | - | 4.69 | 46,953 |
| Capitals of French Regions | 0 | - | 4.45 | 16,081 |
| History of Italy | 0 | - | 4.55 | 31,980 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,800 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,664 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,242 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,389 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,616 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 171,990 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,487 |
| Geography of Germany | 0 | - | 4.35 | 17,188 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,178 |
| Famous Germans | 0 | - | 4.50 | 55,306 |
| German Groups of Things | 0 | - | 4.46 | 38,483 |
| Germany True or False? | 0 | - | 4.61 | 48,814 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,163 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,504 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,655 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,009 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,393 |
| History of Austria | 0 | - | 4.70 | 17,864 |
| Geography of the French Empire | 0 | - | 4.45 | 27,061 |
| The French Revolution | 0 | - | 4.47 | 23,943 |
| France Multiple Choice | 0 | - | 4.39 | 40,744 |
| Regions of Italy | 0 | - | 4.92 | 75,921 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,197 |
| The Vikings! | 0 | - | 4.46 | 28,347 |
| The Portuguese Empire | 0 | - | 4.58 | 12,067 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,993 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,234 |
| American to British Word Translation | 0 | - | 4.14 | 139,092 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,904 |
| Champions League Winners | 0 | - | 4.92 | 1,007,094 |
| Presidents of France | 0 | - | 4.25 | 24,147 |
| History of France | 0 | - | 4.59 | 57,000 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,049 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,607 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,660 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,718 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,020 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,348 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,887 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,173 |
| Slavic Languages | 0 | - | 4.68 | 54,380 |
| Departments of France | 0 | - | 4.93 | 54,166 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,553 |
| England or Wales? | 0 | - | 4.94 | 45,707 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,418 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,253 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,473 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,780 |
| History of Spain | 0 | - | 4.23 | 21,091 |
| Languages of Spain | 0 | - | 4.36 | 23,323 |
| British to American Word Translation | 0 | - | 3.74 | 255,091 |
| British Foods by Description | 0 | - | 3.94 | 48,331 |
| British and American Word Differences | 0 | - | 2.63 | 46,883 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,596 |
| Bridges of London | 0 | - | 4.17 | 10,108 |
| British Sport Trivia | 0 | - | 4.37 | 20,464 |
| Famous Welsh People | 0 | - | 4.31 | 11,506 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,199 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,116 |
| History of Russia Quiz | 0 | - | 4.47 | 31,922 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,737 |
| History of Germany | 0 | - | 4.39 | 52,826 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,617 |
| Name that Greek Letter | 0 | - | 4.93 | 323,497 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,874 |
| Europe Map Quiz | 0 | - | 5.00 | 4,763,956 |
| Word Chain - Germany | 0 | - | 4.31 | 22,591 |
| The Trojan War | 0 | - | 4.83 | 39,735 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,882 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,545 |
| Roman Emperors | 0 | - | 4.95 | 120,088 |
| British Noble Ranks | 0 | - | 3.85 | 20,444 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,333 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,552 |
| Australian Capitals | 0 | - | 4.92 | 62,727 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,364 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,478 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,087 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,715 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,588 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,742 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,603 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,906 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,753 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,050 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,496 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,284 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,954 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,234 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,241 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,652 |
| Regions of France | 0 | - | 4.72 | 120,845 |
| France Immigration by Country | 0 | - | 4.70 | 76,535 |
| German Loan Words | 0 | - | 4.27 | 135,811 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,040 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,966 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,519 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,381 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,275 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,266 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,381 |
| Asia Map Quiz | 0 | - | 4.99 | 917,098 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,856 |
| African East Coast | 0 | - | 4.96 | 96,094 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,912 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,729 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,337 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,661 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,103 |
| European Physical Geography | 0 | - | 4.26 | 33,514 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,312 |
| Country Codes of Europe | 0 | - | 3.43 | 13,731 |
| The Only European Country ... | 0 | - | 4.91 | 216,726 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,190 |
| Geography of Russia | 0 | - | 4.57 | 21,535 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,970 |
| German History A-Z | 0 | - | 4.49 | 24,618 |
| Ancient Greek Words | 0 | - | 4.93 | 111,636 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,157 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,138 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,048 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,673 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,344 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,761 |
| Champions League Top 4 | 0 | - | 4.77 | 136,558 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,004 |
| Countries of Africa | 0 | - | 5.00 | 2,537,961 |
| Australia Map Quiz | 0 | - | 4.95 | 344,665 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,891 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,544 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,834 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,993 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,118 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,787 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,593 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,235 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,786 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,962 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,680 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,235 |
| European Geography A-Z | 0 | - | 4.29 | 49,277 |
| Austria... or Australia? | 0 | - | 4.68 | 104,363 |
| Famous French People | 0 | - | 4.06 | 35,610 |
| Word Chain - France | 0 | - | 4.38 | 42,783 |
| Bundesliga Champions | 0 | - | 4.25 | 56,548 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 45,560 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,005 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,914 |
| Italian Foods | 0 | - | 4.30 | 72,800 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,235 |
| History of The Netherlands | 0 | - | 4.46 | 17,437 |
| Canary Islands | 0 | - | 4.62 | 17,482 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,720 |
| British Spellings | 0 | - | 4.06 | 99,459 |
| British Groups of Things | 0 | - | 4.25 | 82,878 |
| British Acronyms | 0 | - | 4.40 | 45,803 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,038 |
| British Monopoly Board | 0 | - | 4.52 | 41,172 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,824 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,383,168 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,983 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,565 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,027 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,609 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,275 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,290 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,558 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,110 |
| African Island Countries | 0 | - | 4.96 | 101,659 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,452 |
| Australian States and Territories | 0 | - | 4.96 | 142,014 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,294 |
| Australia True or False | 0 | - | 4.87 | 56,867 |
| Flags of North and South America | 0 | - | 4.99 | 373,221 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,625 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,249 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,811 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,044 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,562 |
| North America Map Quiz | 0 | - | 4.98 | 248,615 |
