| Germany Multiple Choice | 0 | - | 4.84 | 54,139 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,672 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,633 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,171 |
| Capitals of German States | 0 | - | 4.74 | 28,871 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,164 |
| States of Germany | 0 | - | 4.96 | 150,740 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,234 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,585 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,762 |
| Official European Union Languages | 0 | - | 4.97 | 237,362 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,155 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,015 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,411 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,493 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,305 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,670 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,273 |
| 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 | 103,346 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,531 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,051 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,006 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,879 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,939 |
| Geography of Germany | 0 | - | 4.35 | 17,119 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,602 |
| Famous Germans | 0 | - | 4.50 | 54,759 |
| German Groups of Things | 0 | - | 4.46 | 38,355 |
| Germany True or False? | 0 | - | 4.61 | 48,614 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,534 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,443 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,244 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,538 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,119 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,825 |
| History of Austria | 0 | - | 4.70 | 17,780 |
| Geography of the French Empire | 0 | - | 4.45 | 26,974 |
| The French Revolution | 0 | - | 4.46 | 23,838 |
| France Multiple Choice | 0 | - | 4.38 | 40,667 |
| Regions of Italy | 0 | - | 4.92 | 75,005 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,004 |
| The Vikings! | 0 | - | 4.46 | 28,272 |
| The Portuguese Empire | 0 | - | 4.58 | 12,010 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,851 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,572 |
| American to British Word Translation | 0 | - | 4.13 | 137,591 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,779 |
| Champions League Winners | 0 | - | 4.92 | 999,097 |
| Presidents of France | 0 | - | 4.25 | 23,946 |
| History of France | 0 | - | 4.59 | 56,434 |
| 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 | 141,161 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,575 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,258 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,785 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,711 |
| Slavic Languages | 0 | - | 4.68 | 54,095 |
| Departments of France | 0 | - | 4.93 | 53,101 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,410 |
| England or Wales? | 0 | - | 4.94 | 45,432 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,959 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,973 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,025 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,581 |
| History of Spain | 0 | - | 4.29 | 21,031 |
| Languages of Spain | 0 | - | 4.36 | 23,200 |
| British to American Word Translation | 0 | - | 3.75 | 254,839 |
| British Foods by Description | 0 | - | 3.94 | 48,276 |
| British and American Word Differences | 0 | - | 2.64 | 46,802 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,532 |
| 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 | 277,875 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,424 |
| History of Russia Quiz | 0 | - | 4.49 | 31,825 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,614 |
| History of Germany | 0 | - | 4.39 | 52,683 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,561 |
| Name that Greek Letter | 0 | - | 4.94 | 322,178 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,664 |
| Europe Map Quiz | 0 | - | 5.00 | 4,740,306 |
| Word Chain - Germany | 0 | - | 4.31 | 22,506 |
| The Trojan War | 0 | - | 4.83 | 39,510 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,947 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,186 |
| Roman Emperors | 0 | - | 4.95 | 118,864 |
| British Noble Ranks | 0 | - | 3.85 | 20,388 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,241 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,220 |
| Australian Capitals | 0 | - | 4.92 | 62,626 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,592 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,057 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,026 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,906 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,375 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,179 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,970 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,743 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,119 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,493 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,068 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,710 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,022 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,058 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,722 |
| Regions of France | 0 | - | 4.78 | 119,679 |
| France Immigration by Country | 0 | - | 4.72 | 76,094 |
| German Loan Words | 0 | - | 4.27 | 135,542 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,631 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,597 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,746 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,970 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,109 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,408 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,844 |
| Asia Map Quiz | 0 | - | 4.99 | 909,256 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,084 |
| African East Coast | 0 | - | 4.96 | 95,344 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,211 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,056 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,721 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,393 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,582 |
| European Physical Geography | 0 | - | 4.26 | 33,406 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,038 |
| Country Codes of Europe | 0 | - | 3.46 | 13,666 |
| The Only European Country ... | 0 | - | 4.91 | 214,667 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,030 |
| Geography of Russia | 0 | - | 4.57 | 21,457 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,825 |
| German History A-Z | 0 | - | 4.49 | 24,485 |
| Ancient Greek Words | 0 | - | 4.93 | 110,957 |
| 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 | 87,365 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,433 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,673 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,810 |
| Champions League Top 4 | 0 | - | 4.77 | 134,523 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,969 |
| Countries of Africa | 0 | - | 5.00 | 2,515,866 |
| Australia Map Quiz | 0 | - | 4.94 | 342,952 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,846 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,891 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,362 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,793 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,032 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,653 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,616 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,304 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,032 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,373 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,463 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,598 |
| European Geography A-Z | 0 | - | 4.28 | 49,075 |
| Austria... or Australia? | 0 | - | 4.68 | 104,020 |
| Word Chain - France | 0 | - | 4.38 | 42,639 |
| Bundesliga Champions | 0 | - | 4.24 | 55,913 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 45,207 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,832 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,812 |
| Italian Foods | 0 | - | 4.31 | 72,352 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,591 |
| History of The Netherlands | 0 | - | 4.46 | 17,348 |
| Canary Islands | 0 | - | 4.61 | 17,426 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,297 |
| British Spellings | 0 | - | 4.07 | 99,324 |
| British Groups of Things | 0 | - | 4.25 | 82,741 |
| British Acronyms | 0 | - | 4.39 | 45,670 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,980 |
| British Monopoly Board | 0 | - | 4.52 | 41,081 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,308 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,564 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,467 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,981 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,776 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,532 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,702 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,501 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,950 |
| African Island Countries | 0 | - | 4.96 | 101,017 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,160 |
| Australian States and Territories | 0 | - | 4.96 | 141,189 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,090 |
| Australia True or False | 0 | - | 4.87 | 56,608 |
| Flags of North and South America | 0 | - | 4.99 | 369,107 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,311 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,394 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,623 |
| South America Map Quiz | 0 | - | 5.00 | 1,543,161 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,015,296 |
| North America Map Quiz | 0 | - | 4.98 | 245,837 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,472 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,117 |
