| European Countries by First 2 Letters | 0 | - | 4.95 | 528,385 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,701 |
| History of Russia Quiz | 0 | - | 4.49 | 31,866 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,679 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,947 |
| Official European Union Languages | 0 | - | 4.97 | 237,950 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,507 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,135 |
| Geography of Russia | 0 | - | 4.57 | 21,501 |
| Slavic Languages | 0 | - | 4.68 | 54,230 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,837 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,718 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,344 |
| Celtic Nations | 0 | - | 4.69 | 46,890 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,188 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,760 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,099 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,887 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,627 |
| Slavic Countries | 0 | - | 4.96 | 111,398 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,261 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,843 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,608 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 96,998 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,784 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,358 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 77,436 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,577 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,908 |
| Word Chain - Russia | 0 | - | 4.33 | 15,733 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,649 |
| States of Germany | 0 | - | 4.96 | 151,614 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,788 |
| Regions of Italy | 0 | - | 4.92 | 75,427 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,528 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,490 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,924 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,649 |
| Champions League Winners | 0 | - | 4.92 | 1,002,713 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,297 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,076 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,462 |
| Departments of France | 0 | - | 4.93 | 53,611 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,494 |
| England or Wales? | 0 | - | 4.94 | 45,558 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,557 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,537 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,640 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,426 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,186 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,562 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,400 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,271 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,281 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,692 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,574 |
| Name that Greek Letter | 0 | - | 4.93 | 322,910 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,687 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,764 |
| Famous Russians | 0 | - | 4.16 | 23,796 |
| The Trojan War | 0 | - | 4.83 | 39,622 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,401 |
| History of Italy | 0 | - | 4.55 | 31,924 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,575 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,364 |
| Roman Emperors | 0 | - | 4.95 | 119,550 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,600 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,144 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,474 |
| Australian Capitals | 0 | - | 4.92 | 62,684 |
| European Geography By Letter - A | 0 | - | 4.61 | 141,719 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 112,068 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,878 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,672 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,841 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,782 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,315 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,043 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,633 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,908 |
| Europe Map Quiz | 0 | - | 5.00 | 4,751,564 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,179 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,839 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,123 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,155 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,165 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,326 |
| Capitals of French Regions | 0 | - | 4.45 | 16,031 |
| Regions of France | 0 | - | 4.75 | 120,249 |
| France Immigration by Country | 0 | - | 4.70 | 76,334 |
| Famous Germans | 0 | - | 4.50 | 55,020 |
| German Groups of Things | 0 | - | 4.46 | 38,414 |
| Capitals of German States | 0 | - | 4.74 | 28,916 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,258 |
| Germany True or False? | 0 | - | 4.61 | 48,710 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,812 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,171 |
| Ancient Greek Words | 0 | - | 4.93 | 111,243 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,112 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,167 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,199 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,993 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,407 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,365 |
| Africa Map Quiz | 0 | - | 5.00 | 2,113,076 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,726 |
| European Physical Geography | 0 | - | 4.26 | 33,449 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,890 |
| History of Austria | 0 | - | 4.70 | 17,825 |
| Geography of the French Empire | 0 | - | 4.45 | 27,014 |
| The French Revolution | 0 | - | 4.46 | 23,889 |
| France Multiple Choice | 0 | - | 4.38 | 40,691 |
| History of France | 0 | - | 4.59 | 56,755 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,453 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,758 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,951 |
| The Vikings! | 0 | - | 4.46 | 28,308 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,985 |
| The Portuguese Empire | 0 | - | 4.58 | 12,042 |
| American to British Word Translation | 0 | - | 4.14 | 138,616 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,844 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,519 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,555 |
| Champions League Top 4 | 0 | - | 4.77 | 135,473 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,445,477 |
| Asia Map Quiz | 0 | - | 4.99 | 913,137 |
| Countries of Africa | 0 | - | 5.00 | 2,526,869 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,468 |
| African East Coast | 0 | - | 4.96 | 95,701 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,522 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,373 |
| Australia Map Quiz | 0 | - | 4.95 | 343,603 |
| United States Map Quiz | 0 | - | 4.98 | 4,151,047 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,508 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,534 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,313 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,704 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,919 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,285 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,477 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,122 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,992 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,666 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,307 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,601 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,583 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,848 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,628 |
| European Geography A-Z | 0 | - | 4.29 | 49,169 |
| Country Codes of Europe | 0 | - | 3.43 | 13,695 |
| The Only European Country ... | 0 | - | 4.91 | 215,689 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,591 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 27,997 |
| Austria... or Australia? | 0 | - | 4.68 | 104,188 |
| Presidents of France | 0 | - | 4.25 | 24,013 |
| Word Chain - France | 0 | - | 4.38 | 42,720 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,903 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,863 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,217 |
| Italian Foods | 0 | - | 4.30 | 72,577 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,215 |
| The Mafia Quiz | 0 | - | 4.46 | 23,276 |
| History of The Netherlands | 0 | - | 4.46 | 17,392 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,003 |
| Canary Islands | 0 | - | 4.62 | 17,454 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,538 |
| British Spellings | 0 | - | 4.06 | 99,385 |
| British Groups of Things | 0 | - | 4.25 | 82,817 |
| British Acronyms | 0 | - | 4.39 | 45,737 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,008 |
| British Monopoly Board | 0 | - | 4.52 | 41,128 |
| Geography of Scotland | 0 | - | 4.63 | 21,576 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,462 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,275 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,809 |
| Flags of Africa Quiz | 0 | - | 5.00 | 468,276 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,491 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,058 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,881 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,974 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,009 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,483 |
| African Island Countries | 0 | - | 4.96 | 101,320 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,908 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,066 |
| Australian States and Territories | 0 | - | 4.96 | 141,538 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,195 |
| Australia True or False | 0 | - | 4.87 | 56,736 |
| Flags of North and South America | 0 | - | 4.99 | 371,339 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,477 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,697 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,146 |
| South America Map Quiz | 0 | - | 5.00 | 1,546,341 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,019,355 |
| North America Map Quiz | 0 | - | 4.98 | 247,267 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,609 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,737 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,647 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,983 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,756 |
