| European Countries by First 2 Letters | 0 | - | 4.95 | 526,492 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,671 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,603 |
| Official European Union Languages | 0 | - | 4.97 | 236,939 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,727 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,374 |
| Slavic Languages | 0 | - | 4.67 | 54,000 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,556 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,577 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,580 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,248 |
| Celtic Nations | 0 | - | 4.69 | 46,819 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,884 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,926 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,043 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,056 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,194 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,357 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,263 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,165 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,296 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,845 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,109 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,789 |
| States of Germany | 0 | - | 4.96 | 150,181 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,064 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,543 |
| Regions of Italy | 0 | - | 4.92 | 74,780 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,858 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,425 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,235 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,520 |
| Champions League Winners | 0 | - | 4.92 | 996,858 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,647 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,326 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,256 |
| Departments of France | 0 | - | 4.93 | 52,874 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,381 |
| England or Wales? | 0 | - | 4.94 | 45,343 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,561 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,455 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,605 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,020 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,127 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,436 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,259 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,862 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,529 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,171 |
| Name that Greek Letter | 0 | - | 4.94 | 321,767 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,607 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,177 |
| History of Russia Quiz | 0 | - | 4.49 | 31,798 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,627 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,490 |
| The Trojan War | 0 | - | 4.83 | 39,450 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,614 |
| History of Italy | 0 | - | 4.55 | 31,828 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,192 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,074 |
| Roman Emperors | 0 | - | 4.95 | 118,545 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,491 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,989 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,163 |
| Australian Capitals | 0 | - | 4.92 | 62,595 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,426 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,929 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,876 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,738 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,244 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,945 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,694 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,653 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,037 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,334 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,730 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,005 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,636 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,961 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,002 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,614 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,169 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,628 |
| Capitals of French Regions | 0 | - | 4.45 | 15,988 |
| Regions of France | 0 | - | 4.78 | 119,326 |
| France Immigration by Country | 0 | - | 4.72 | 75,986 |
| Famous Germans | 0 | - | 4.50 | 54,642 |
| German Groups of Things | 0 | - | 4.46 | 38,309 |
| Capitals of German States | 0 | - | 4.74 | 28,816 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,106 |
| Germany True or False? | 0 | - | 4.61 | 48,539 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,481 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,518 |
| Ancient Greek Words | 0 | - | 4.92 | 110,735 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,568 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,852 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,064 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,014 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,276 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,184 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,388 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,889 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,597 |
| European Physical Geography | 0 | - | 4.26 | 33,377 |
| Geography of Russia | 0 | - | 4.57 | 21,430 |
| History of Austria | 0 | - | 4.70 | 17,759 |
| Geography of the French Empire | 0 | - | 4.48 | 26,941 |
| The French Revolution | 0 | - | 4.46 | 23,790 |
| France Multiple Choice | 0 | - | 4.38 | 40,640 |
| History of France | 0 | - | 4.59 | 56,114 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,389 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,696 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,642 |
| The Vikings! | 0 | - | 4.46 | 28,250 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,715 |
| The Portuguese Empire | 0 | - | 4.54 | 11,995 |
| American to British Word Translation | 0 | - | 4.06 | 130,864 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,722 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,243 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,401 |
| Champions League Top 4 | 0 | - | 4.77 | 133,936 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,163 |
| Asia Map Quiz | 0 | - | 4.99 | 907,435 |
| Countries of Africa | 0 | - | 5.00 | 2,509,134 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,854 |
| African East Coast | 0 | - | 4.96 | 95,085 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,977 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,826 |
| Australia Map Quiz | 0 | - | 4.94 | 342,573 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,502 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,231 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,233 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,093 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,416 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,239 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,683 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,921 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,300 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,509 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,186 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,941 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,307 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,413 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,526 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,656 |
| European Geography A-Z | 0 | - | 4.28 | 49,011 |
| Country Codes of Europe | 0 | - | 3.46 | 13,656 |
| The Only European Country ... | 0 | - | 4.91 | 213,967 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,629 |
| Austria... or Australia? | 0 | - | 4.68 | 103,896 |
| Presidents of France | 0 | - | 4.25 | 23,907 |
| Word Chain - France | 0 | - | 4.38 | 42,586 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,786 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,775 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,054 |
| Italian Foods | 0 | - | 4.31 | 72,220 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,980 |
| The Mafia Quiz | 0 | - | 4.46 | 23,211 |
| History of The Netherlands | 0 | - | 4.46 | 17,320 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,963 |
| Canary Islands | 0 | - | 4.61 | 17,407 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,179 |
| British Spellings | 0 | - | 4.07 | 99,247 |
| British Groups of Things | 0 | - | 4.25 | 82,690 |
| British Acronyms | 0 | - | 4.39 | 45,629 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,952 |
| British Monopoly Board | 0 | - | 4.52 | 41,041 |
| Geography of Scotland | 0 | - | 4.63 | 21,489 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,523 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,366 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,447 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,729 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,681 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,620 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,319 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,522 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,189 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,517 |
| African Island Countries | 0 | - | 4.96 | 100,831 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,733 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,730 |
| Australian States and Territories | 0 | - | 4.96 | 140,940 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,029 |
| Australia True or False | 0 | - | 4.87 | 56,521 |
| Flags of North and South America | 0 | - | 4.99 | 367,621 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,166 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,195 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,279 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,512 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,264 |
| North America Map Quiz | 0 | - | 4.98 | 244,612 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,385 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,089 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,196 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,647 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,513 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,522 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,297 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,740 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,334 |
