| European Countries by First 2 Letters | 0 | - | 4.95 | 527,864 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,867 |
| Official European Union Languages | 0 | - | 4.97 | 237,704 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,341 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,620 |
| Slavic Languages | 0 | - | 4.68 | 54,159 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,759 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,673 |
| History of Russia Quiz | 0 | - | 4.49 | 31,847 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,644 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,319 |
| Celtic Nations | 0 | - | 4.69 | 46,875 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,118 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,403 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,564 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,763 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,550 |
| Slavic Countries | 0 | - | 4.96 | 111,279 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,204 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,772 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,675 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,633 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,623 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,299 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,712 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,374 |
| Geography of Russia | 0 | - | 4.57 | 21,486 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,547 |
| States of Germany | 0 | - | 4.96 | 151,154 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,579 |
| Regions of Italy | 0 | - | 4.92 | 75,237 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 49,409 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,214 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,761 |
| American to British Word Translation | 0 | - | 4.13 | 138,338 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,622 |
| Champions League Winners | 0 | - | 4.92 | 1,000,991 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,869 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,780 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,151 |
| Departments of France | 0 | - | 4.93 | 53,375 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,447 |
| England or Wales? | 0 | - | 4.94 | 45,499 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,300 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,515 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,628 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,314 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,901 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,526 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,363 |
| British Spellings | 0 | - | 4.06 | 99,358 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,153 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,642 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,745 |
| Name that Greek Letter | 0 | - | 4.93 | 322,597 |
| British to American Word Translation | 0 | - | 3.74 | 254,915 |
| British Foods by Description | 0 | - | 3.94 | 48,294 |
| British and American Word Differences | 0 | - | 2.63 | 46,827 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,439 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,608 |
| Word Chain - Russia | 0 | - | 4.33 | 15,726 |
| The Trojan War | 0 | - | 4.83 | 39,577 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,200 |
| History of Italy | 0 | - | 4.55 | 31,907 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,468 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,300 |
| Roman Emperors | 0 | - | 4.95 | 119,298 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,571 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,103 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,211 |
| Australian Capitals | 0 | - | 4.92 | 62,661 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,697 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,141 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,119 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,999 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,453 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,351 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,039 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,819 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,448 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,619 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,916 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,144 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,790 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,084 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,128 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,806 |
| Capitals of French Regions | 0 | - | 4.45 | 16,019 |
| Regions of France | 0 | - | 4.77 | 120,002 |
| France Immigration by Country | 0 | - | 4.72 | 76,230 |
| German Loan Words | 0 | - | 4.27 | 135,627 |
| Famous Germans | 0 | - | 4.50 | 54,854 |
| German Groups of Things | 0 | - | 4.46 | 38,387 |
| Capitals of German States | 0 | - | 4.74 | 28,896 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,210 |
| Germany True or False? | 0 | - | 4.61 | 48,664 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,745 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,515 |
| Ancient Greek Words | 0 | - | 4.93 | 111,125 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,908 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,077 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,160 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,853 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,101 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,170 |
| Elemental Words | 0 | - | 4.96 | 52,139 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,031 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,718 |
| European Physical Geography | 0 | - | 4.26 | 33,429 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,863 |
| History of Austria | 0 | - | 4.70 | 17,807 |
| Geography of the French Empire | 0 | - | 4.45 | 27,000 |
| The French Revolution | 0 | - | 4.46 | 23,868 |
| France Multiple Choice | 0 | - | 4.38 | 40,686 |
| History of France | 0 | - | 4.59 | 56,649 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,425 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,234 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,844 |
| The Vikings! | 0 | - | 4.46 | 28,290 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,899 |
| The Portuguese Empire | 0 | - | 4.58 | 12,031 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,817 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,457 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,467 |
| Champions League Top 4 | 0 | - | 4.77 | 135,018 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,118 |
| Asia Map Quiz | 0 | - | 4.99 | 911,238 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 705,856 |
| Countries of Africa | 0 | - | 5.00 | 2,522,149 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,293 |
| African East Coast | 0 | - | 4.96 | 95,551 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,381 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,226 |
| Australia Map Quiz | 0 | - | 4.94 | 343,324 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,916 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,573 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,148 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,480 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,994 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,289 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,446 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,866 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,112 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,731 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,684 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,369 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,095 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,436 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,537 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,663 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,357 |
| European Geography A-Z | 0 | - | 4.29 | 49,121 |
| Country Codes of Europe | 0 | - | 3.46 | 13,678 |
| The Only European Country ... | 0 | - | 4.91 | 215,227 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,369 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,269 |
| Austria... or Australia? | 0 | - | 4.68 | 104,119 |
| Presidents of France | 0 | - | 4.25 | 23,987 |
| Word Chain - France | 0 | - | 4.38 | 42,680 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,872 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,845 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,898 |
| Italian Foods | 0 | - | 4.31 | 72,478 |
| History of The Netherlands | 0 | - | 4.46 | 17,367 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,993 |
| Canary Islands | 0 | - | 4.61 | 17,440 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,436 |
| British Groups of Things | 0 | - | 4.25 | 82,782 |
| British Acronyms | 0 | - | 4.39 | 45,710 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,998 |
| British Monopoly Board | 0 | - | 4.52 | 41,100 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,239 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,257 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,683 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 158,638 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 86,330 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,662 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,100 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,268 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,923 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,706 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,858 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,792 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,252 |
| African Island Countries | 0 | - | 4.96 | 101,192 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,673 |
| Australian States and Territories | 0 | - | 4.96 | 141,395 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,149 |
| Australian Slang | 0 | - | 4.25 | 28,551 |
| Australia True or False | 0 | - | 4.87 | 56,684 |
| Flags of North and South America | 0 | - | 4.99 | 370,352 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,415 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,541 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,885 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,887 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,017,564 |
| North America Map Quiz | 0 | - | 4.98 | 246,718 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,555 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,988 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,960 |
