| European Countries by First 2 Letters | 0 | - | 4.95 | 529,135 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,666 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,053 |
| Official European Union Languages | 0 | - | 4.97 | 238,292 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,721 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,828 |
| Slavic Languages | 0 | - | 4.68 | 54,310 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,930 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,792 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,375 |
| Celtic Nations | 0 | - | 4.69 | 46,917 |
| History of Russia Quiz | 0 | - | 4.47 | 31,899 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,710 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,300 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,197 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,040 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,129 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,917 |
| Slavic Countries | 0 | - | 4.96 | 111,558 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,316 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,927 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,148 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,007 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,441 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,096 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,831 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,738 |
| Geography of Russia | 0 | - | 4.57 | 21,519 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,803 |
| States of Germany | 0 | - | 4.96 | 152,183 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,950 |
| Regions of Italy | 0 | - | 4.92 | 75,708 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,022 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,771 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,102 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,679 |
| Champions League Winners | 0 | - | 4.92 | 1,005,330 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,580 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,648 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,584 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,717 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,903 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,500 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,887 |
| Departments of France | 0 | - | 4.93 | 53,961 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,588 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,530 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,439 |
| England or Wales? | 0 | - | 4.94 | 45,638 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,093 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,014 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,391 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,745 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,853 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,952 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,644 |
| Name that Greek Letter | 0 | - | 4.93 | 323,254 |
| History of Italy | 0 | - | 4.55 | 31,956 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,710 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,636 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,197 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,572 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,396 |
| Word Chain - Russia | 0 | - | 4.33 | 15,741 |
| Capitals of French Regions | 0 | - | 4.45 | 16,055 |
| Capitals of German States | 0 | - | 4.74 | 28,941 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,302 |
| The Trojan War | 0 | - | 4.83 | 39,674 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,666 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,464 |
| Roman Emperors | 0 | - | 4.95 | 119,791 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,014 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,311 |
| Australian Capitals | 0 | - | 4.92 | 62,709 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,650 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,741 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,462 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,179 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,235 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,290 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,325 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,633 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,539 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,859 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,232 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,235 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,899 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,188 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,208 |
| European Geography By Letter - S #1 | 0 | - | 4.54 | 100,439 |
| Regions of France | 0 | - | 4.75 | 120,573 |
| France Immigration by Country | 0 | - | 4.70 | 76,453 |
| Famous Germans | 0 | - | 4.50 | 55,237 |
| German Groups of Things | 0 | - | 4.46 | 38,453 |
| Germany True or False? | 0 | - | 4.61 | 48,764 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,936 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,240 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,387 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,293 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,245 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,144 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,484 |
| Asia Map Quiz | 0 | - | 4.99 | 915,550 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,724 |
| African East Coast | 0 | - | 4.96 | 95,932 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,745 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,571 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,966 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,615 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,740 |
| European Physical Geography | 0 | - | 4.26 | 33,489 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,003 |
| Country Codes of Europe | 0 | - | 3.43 | 13,702 |
| The Only European Country ... | 0 | - | 4.91 | 216,266 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,929 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,095 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,928 |
| History of Austria | 0 | - | 4.70 | 17,849 |
| Presidents of France | 0 | - | 4.25 | 24,063 |
| Geography of the French Empire | 0 | - | 4.45 | 27,040 |
| The French Revolution | 0 | - | 4.46 | 23,920 |
| France Multiple Choice | 0 | - | 4.39 | 40,722 |
| History of France | 0 | - | 4.59 | 56,913 |
| Ancient Greek Words | 0 | - | 4.93 | 111,453 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,055 |
| The Vikings! | 0 | - | 4.46 | 28,333 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,083 |
| The Portuguese Empire | 0 | - | 4.58 | 12,056 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,018 |
| American to British Word Translation | 0 | - | 4.14 | 138,883 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,873 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,614 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,634 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,901 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,555 |
| Champions League Top 4 | 0 | - | 4.77 | 136,098 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,804 |
| Countries of Africa | 0 | - | 5.00 | 2,532,918 |
| Australia Map Quiz | 0 | - | 4.95 | 344,128 |
| United States Map Quiz | 0 | - | 4.98 | 4,155,425 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,188 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,336 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,657 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,828 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,475 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,316 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,962 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,571 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,809 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,639 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,067 |
| European Geography A-Z | 0 | - | 4.29 | 49,224 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,291 |
| Austria... or Australia? | 0 | - | 4.68 | 104,274 |
| Famous French People | 0 | - | 4.06 | 35,326 |
| Word Chain - France | 0 | - | 4.38 | 42,762 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,964 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,891 |
| Italian Foods | 0 | - | 4.30 | 72,710 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,282 |
| The Mafia Quiz | 0 | - | 4.46 | 23,312 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,649 |
| History of The Netherlands | 0 | - | 4.46 | 17,422 |
| Canary Islands | 0 | - | 4.62 | 17,470 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,645 |
| British Spellings | 0 | - | 4.06 | 99,425 |
| British Groups of Things | 0 | - | 4.25 | 82,850 |
| British Acronyms | 0 | - | 4.40 | 45,778 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,027 |
| British Monopoly Board | 0 | - | 4.52 | 41,152 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,730 |
| Geography of Scotland | 0 | - | 4.63 | 21,604 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,381,939 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,926 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,121 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,798 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,495 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,110 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,174 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,329 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,826 |
| African Island Countries | 0 | - | 4.96 | 101,517 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,232 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,175 |
| Australian States and Territories | 0 | - | 4.96 | 141,805 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,255 |
| Australia True or False | 0 | - | 4.87 | 56,811 |
| Flags of North and South America | 0 | - | 4.99 | 372,449 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,557 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,152 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,546 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,456 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,021,688 |
| North America Map Quiz | 0 | - | 4.98 | 248,100 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,684 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,857 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,637 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,083 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,829 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,241,790 |
