| European Countries by First 2 Letters | 0 | - | 4.95 | 533,205 |
| History of Russia Quiz | 0 | - | 4.47 | 32,031 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,908 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,881 |
| Official European Union Languages | 0 | - | 4.97 | 240,425 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,865 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,514 |
| Geography of Russia | 0 | - | 4.57 | 21,626 |
| Slavic Languages | 0 | - | 4.67 | 54,796 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,407 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,117 |
| Celtic Nations | 0 | - | 4.61 | 47,130 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,539 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,162 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,296 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,666 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,418 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,944 |
| Slavic Countries | 0 | - | 4.96 | 112,545 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,769 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,526 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,939 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,183 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,928 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,837 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,211 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,225 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,008 |
| Word Chain - Russia | 0 | - | 4.33 | 15,809 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,614 |
| States of Germany | 0 | - | 4.95 | 155,011 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,841 |
| Regions of Italy | 0 | - | 4.92 | 77,303 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,947 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,648 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,920 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,876 |
| Champions League Winners | 0 | - | 4.92 | 1,018,449 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,809 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,742 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,479 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,457 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,458 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,412 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,367 |
| Departments of France | 0 | - | 4.93 | 55,448 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,764 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,792 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,671 |
| England or Wales? | 0 | - | 4.94 | 46,079 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,555 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,084 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,312 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 281,107 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,729 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,042 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,375 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,216 |
| Name that Greek Letter | 0 | - | 4.93 | 325,373 |
| History of Italy | 0 | - | 4.55 | 32,195 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,556 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,859 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,480 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,605 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,633 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,799 |
| Famous Russians | 0 | - | 4.16 | 23,934 |
| Capitals of French Regions | 0 | - | 4.45 | 16,216 |
| Capitals of German States | 0 | - | 4.74 | 29,099 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,600 |
| The Trojan War | 0 | - | 4.83 | 40,104 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,314 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,715 |
| Roman Emperors | 0 | - | 4.95 | 121,491 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,624 |
| Australian Capitals | 0 | - | 4.92 | 62,865 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,452 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,885 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,423 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,947 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,390 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,922 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,358 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,951 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,225 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,859 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,585 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,257 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,525 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,479 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,612 |
| Regions of France | 0 | - | 4.70 | 122,471 |
| France Immigration by Country | 0 | - | 4.70 | 77,031 |
| Famous Germans | 0 | - | 4.50 | 55,889 |
| German Groups of Things | 0 | - | 4.47 | 38,680 |
| Germany True or False? | 0 | - | 4.61 | 49,081 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,606 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,622 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,574 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,966 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,504 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,988 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,634 |
| Asia Map Quiz | 0 | - | 4.99 | 927,062 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,239 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,633 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,441 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 93,006 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,333 |
| European Physical Geography | 0 | - | 4.26 | 33,621 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,566 |
| Country Codes of Europe | 0 | - | 3.45 | 13,857 |
| The Only European Country ... | 0 | - | 4.91 | 219,709 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,898 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,173 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| Presidents of France | 0 | - | 4.25 | 24,383 |
| Geography of the French Empire | 0 | - | 4.45 | 27,240 |
| The French Revolution | 0 | - | 4.47 | 24,173 |
| France Multiple Choice | 0 | - | 4.39 | 40,881 |
| History of France | 0 | - | 4.61 | 57,753 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,580 |
| Ancient Greek Words | 0 | - | 4.93 | 112,718 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,638 |
| The Vikings! | 0 | - | 4.46 | 28,427 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,451 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,139 |
| American to British Word Translation | 0 | - | 4.14 | 139,860 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,096 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,491 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,860 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,847 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 293,032 |
| Champions League Top 4 | 0 | - | 4.78 | 139,692 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,221 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,300 |
| African East Coast | 0 | - | 4.96 | 96,954 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,853 |
| Australia Map Quiz | 0 | - | 4.95 | 346,574 |
| United States Map Quiz | 0 | - | 4.98 | 4,174,073 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,670 |
| European Geography By Letter - E | 0 | - | 4.23 | 119,964 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,773 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,441 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,240 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,780 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,436 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,787 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,732 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,957 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 52,037 |
| European Geography A-Z | 0 | - | 4.29 | 49,530 |
| Austria... or Australia? | 0 | - | 4.67 | 104,868 |
| Famous French People | 0 | - | 4.05 | 36,182 |
| Word Chain - France | 0 | - | 4.38 | 42,969 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,291 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,077 |
| Italian Foods | 0 | - | 4.30 | 73,417 |
| Countries Italy Declared War On | 0 | - | 4.74 | 48,843 |
| The Mafia Quiz | 0 | - | 4.46 | 23,454 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,568 |
| History of The Netherlands | 0 | - | 4.46 | 17,579 |
| Canary Islands | 0 | - | 4.62 | 17,551 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,180 |
| British Spellings | 0 | - | 4.06 | 99,637 |
| British Groups of Things | 0 | - | 4.26 | 83,048 |
| British Acronyms | 0 | - | 4.40 | 45,987 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,134 |
| British Monopoly Board | 0 | - | 4.52 | 41,297 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,234 |
| Geography of Scotland | 0 | - | 4.63 | 21,835 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,207 |
| Countries of Africa | 0 | - | 5.00 | 2,565,941 |
| Australian States and Territories | 0 | - | 4.96 | 143,108 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,555 |
| Australia True or False | 0 | - | 4.87 | 57,230 |
| Flags of North and South America | 0 | - | 4.99 | 378,369 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,096 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 145,015 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,909 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,853 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,794 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,809 |
| North America Map Quiz | 0 | - | 4.98 | 252,947 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,043 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,287 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,533 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,690 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,258 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,141 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,564 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,831 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,577 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,383 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,938 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,940 |
| Seas of Europe | 0 | - | 4.37 | 84,976 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,811 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,685 |
