| European Countries by First 2 Letters | 0 | - | 4.95 | 533,312 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,899 |
| Official European Union Languages | 0 | - | 4.97 | 240,490 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,904 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,642 |
| Celtic Nations | 0 | - | 4.61 | 47,134 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,417 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,126 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,546 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,186 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,382 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,861 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,780 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,545 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,850 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,187 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,879 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,318 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,948 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,410 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,257 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,082 |
| States of Germany | 0 | - | 4.95 | 155,084 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,877 |
| Regions of Italy | 0 | - | 4.92 | 77,345 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,982 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,701 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,977 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 281,168 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,788 |
| Champions League Winners | 0 | - | 4.92 | 1,018,961 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,818 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,744 |
| Word Scramble - European Countries | 0 | - | 4.72 | 142,518 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,825 |
| Slavic Languages | 0 | - | 4.67 | 54,814 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,765 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,673 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,564 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,501 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,432 |
| Departments of France | 0 | - | 4.93 | 55,501 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,802 |
| England or Wales? | 0 | - | 4.94 | 46,111 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,644 |
| Australian Capitals | 0 | - | 4.92 | 62,887 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,894 |
| Country Codes of Europe | 0 | - | 3.45 | 13,859 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,071 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,101 |
| History of Russia Quiz | 0 | - | 4.47 | 32,033 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,917 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,328 |
| Capitals of French Regions | 0 | - | 4.45 | 16,218 |
| Capitals of German States | 0 | - | 4.74 | 29,103 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,606 |
| History of Italy | 0 | - | 4.55 | 32,204 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,592 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,868 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,490 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,977 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,611 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 122,057 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,634 |
| European Geography By Letter - D | 0 | - | 4.49 | 119,189 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,558 |
| European Geography By Letter - M | 0 | - | 4.70 | 133,091 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,470 |
| European Geography By Letter - R | 0 | - | 4.43 | 95,044 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,304 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,951 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,599 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,272 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,544 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,494 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,687 |
| Regions of France | 0 | - | 4.70 | 122,541 |
| France Immigration by Country | 0 | - | 4.70 | 77,051 |
| Famous Germans | 0 | - | 4.50 | 55,907 |
| German Groups of Things | 0 | - | 4.47 | 38,685 |
| Germany True or False? | 0 | - | 4.61 | 49,095 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,625 |
| The Trojan War | 0 | - | 4.83 | 40,133 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,484 |
| Name that Greek Letter | 0 | - | 4.93 | 325,450 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,387 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,598 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,747 |
| Roman Emperors | 0 | - | 4.95 | 121,555 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,989 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,522 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 104,007 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,840 |
| Asia Map Quiz | 0 | - | 4.99 | 927,388 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,690 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,681 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,548 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 93,015 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,427 |
| European Physical Geography | 0 | - | 4.26 | 33,627 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,646 |
| The Only European Country ... | 0 | - | 4.91 | 219,842 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,963 |
| Geography of Russia | 0 | - | 4.57 | 21,631 |
| History of Austria | 0 | - | 4.70 | 17,995 |
| Presidents of France | 0 | - | 4.25 | 24,393 |
| Geography of the French Empire | 0 | - | 4.45 | 27,245 |
| The French Revolution | 0 | - | 4.47 | 24,177 |
| France Multiple Choice | 0 | - | 4.39 | 40,883 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,584 |
| The Vikings! | 0 | - | 4.46 | 28,434 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,140 |
| American to British Word Translation | 0 | - | 4.14 | 139,894 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,103 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,284 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,336 |
| African East Coast | 0 | - | 4.96 | 96,990 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,881 |
| Australia Map Quiz | 0 | - | 4.95 | 346,662 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,755 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,185 |
| History of France | 0 | - | 4.61 | 57,781 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,799 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,463 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,510 |
| Champions League Top 4 | 0 | - | 4.78 | 139,794 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,391 |
| Countries of Africa | 0 | - | 5.00 | 2,567,108 |
| United States Map Quiz | 0 | - | 4.98 | 4,174,601 |
| European Geography By Letter - E | 0 | - | 4.25 | 123,137 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,942 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,580 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,386 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,902 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,552 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,879 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,787 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,968 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 52,108 |
| European Geography A-Z | 0 | - | 4.29 | 49,544 |
| Famous French People | 0 | - | 4.05 | 36,207 |
| Word Chain - France | 0 | - | 4.38 | 42,979 |
| Ancient Greek Words | 0 | - | 4.93 | 112,752 |
| Italian Foods | 0 | - | 4.30 | 73,443 |
| The Mafia Quiz | 0 | - | 4.46 | 23,458 |
| History of The Netherlands | 0 | - | 4.46 | 17,582 |
| Canary Islands | 0 | - | 4.62 | 17,553 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,195 |
| British Spellings | 0 | - | 4.06 | 99,647 |
| British Groups of Things | 0 | - | 4.26 | 83,057 |
| British Acronyms | 0 | - | 4.40 | 46,003 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,137 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,242 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,865 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,996 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 293,081 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 61,116 |
| Australian States and Territories | 0 | - | 4.96 | 143,149 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,568 |
| Australia Country Quiz | 0 | - | 4.43 | 69,912 |
| Australia True or False | 0 | - | 4.87 | 57,258 |
| Flags of North and South America | 0 | - | 4.99 | 378,628 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,114 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 145,043 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,955 |
| South America Map Quiz | 0 | - | 5.00 | 1,559,403 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,803 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,034,226 |
| North America Map Quiz | 0 | - | 4.98 | 253,130 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,054 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,492 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,741 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,704 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,275 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,889 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,889 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,870 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,612 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,504 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,967 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,876 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,464 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,973 |
| Slavic Countries | 0 | - | 4.96 | 112,586 |
| Austria... or Australia? | 0 | - | 4.67 | 104,887 |
| Geography of Germany | 0 | - | 4.36 | 17,455 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,308 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,752 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,668 |
| History of Spain | 0 | - | 4.23 | 21,181 |
| Languages of Spain | 0 | - | 4.36 | 23,479 |
| British to American Word Translation | 0 | - | 3.74 | 255,420 |
| British Foods by Description | 0 | - | 3.94 | 48,421 |
| British and American Word Differences | 0 | - | 2.63 | 46,944 |
| Counties of England | 0 | - | 4.97 | 804,904 |
| British Monopoly Board | 0 | - | 4.52 | 41,305 |
| British Geography Quiz #2 | 0 | - | 4.30 | 28,264 |
| Bridges of London | 0 | - | 4.17 | 10,157 |
