| European Countries by First 2 Letters | 0 | - | 4.95 | 530,330 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,366 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,284 |
| Official European Union Languages | 0 | - | 4.97 | 238,827 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,070 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,805 |
| Slavic Languages | 0 | - | 4.68 | 54,443 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,080 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,895 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,414 |
| Celtic Nations | 0 | - | 4.69 | 46,978 |
| History of Russia Quiz | 0 | - | 4.47 | 31,943 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,767 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,499 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,102 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,657 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,503 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,349 |
| Slavic Countries | 0 | - | 4.96 | 111,830 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,442 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,155 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,753 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,329 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,553 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 82,196 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,212 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,868 |
| Geography of Russia | 0 | - | 4.57 | 21,551 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,042 |
| States of Germany | 0 | - | 4.95 | 153,035 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,230 |
| Regions of Italy | 0 | - | 4.92 | 76,172 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,374 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,265 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,373 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,734 |
| Champions League Winners | 0 | - | 4.91 | 1,009,231 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,634 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,669 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,830 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,475 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,770 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,252 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,502 |
| Departments of France | 0 | - | 4.93 | 54,390 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,652 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,599 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,507 |
| England or Wales? | 0 | - | 4.94 | 45,775 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,883 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,519 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,586 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,839 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,537 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,278 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,536 |
| Name that Greek Letter | 0 | - | 4.93 | 324,091 |
| History of Italy | 0 | - | 4.55 | 32,040 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,913 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,714 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,287 |
| Europe Map Quiz | 0 | - | 5.00 | 4,769,058 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,527 |
| Word Chain - Russia | 0 | - | 4.33 | 15,770 |
| Capitals of French Regions | 0 | - | 4.45 | 16,096 |
| Capitals of German States | 0 | - | 4.74 | 28,979 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,384 |
| The Trojan War | 0 | - | 4.83 | 39,782 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,125 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,627 |
| Roman Emperors | 0 | - | 4.95 | 120,316 |
| Africa Map Quiz | 0 | - | 5.00 | 2,120,911 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,546 |
| Australian Capitals | 0 | - | 4.92 | 62,742 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,670 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,094 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,389 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,985 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,778 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,018 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,741 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,041 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,863 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,155 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,647 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,338 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,998 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,282 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,281 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,753 |
| Regions of France | 0 | - | 4.72 | 121,131 |
| France Immigration by Country | 0 | - | 4.70 | 76,648 |
| Famous Germans | 0 | - | 4.50 | 55,485 |
| German Groups of Things | 0 | - | 4.46 | 38,508 |
| Germany True or False? | 0 | - | 4.61 | 48,866 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,124 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,647 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,712 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,467 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,327 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,391 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,369 |
| Asia Map Quiz | 0 | - | 4.99 | 918,907 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,045 |
| African East Coast | 0 | - | 4.96 | 96,224 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,085 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,844 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,691 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,722 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,444 |
| European Physical Geography | 0 | - | 4.26 | 33,536 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,599 |
| Country Codes of Europe | 0 | - | 3.43 | 13,741 |
| The Only European Country ... | 0 | - | 4.91 | 217,245 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,480 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,265 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,999 |
| History of Austria | 0 | - | 4.70 | 17,894 |
| Presidents of France | 0 | - | 4.25 | 24,193 |
| Geography of the French Empire | 0 | - | 4.45 | 27,149 |
| The French Revolution | 0 | - | 4.47 | 24,050 |
| France Multiple Choice | 0 | - | 4.39 | 40,763 |
| History of France | 0 | - | 4.59 | 57,228 |
| Ancient Greek Words | 0 | - | 4.93 | 111,838 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,239 |
| The Vikings! | 0 | - | 4.46 | 28,366 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,197 |
| The Portuguese Empire | 0 | - | 4.58 | 12,081 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,063 |
| American to British Word Translation | 0 | - | 4.14 | 139,255 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,940 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,124 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,703 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,808 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,981 |
| Champions League Top 4 | 0 | - | 4.77 | 137,125 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,191 |
| Countries of Africa | 0 | - | 5.00 | 2,543,100 |
| Australia Map Quiz | 0 | - | 4.95 | 344,975 |
| United States Map Quiz | 0 | - | 4.98 | 4,162,505 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,913 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,031 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,407 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,274 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,953 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,725 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,369 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,878 |
| European Geography by Letter - W | 0 | - | 4.20 | 83,038 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,731 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,317 |
| European Geography A-Z | 0 | - | 4.29 | 49,348 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,322 |
| Austria... or Australia? | 0 | - | 4.68 | 104,472 |
| Famous French People | 0 | - | 4.07 | 35,800 |
| Word Chain - France | 0 | - | 4.38 | 42,824 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,059 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,944 |
| Italian Foods | 0 | - | 4.30 | 72,900 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,396 |
| The Mafia Quiz | 0 | - | 4.46 | 23,363 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,753 |
| History of The Netherlands | 0 | - | 4.46 | 17,469 |
| Canary Islands | 0 | - | 4.62 | 17,490 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,801 |
| British Spellings | 0 | - | 4.06 | 99,493 |
| British Groups of Things | 0 | - | 4.25 | 82,901 |
| British Acronyms | 0 | - | 4.40 | 45,837 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,051 |
| British Monopoly Board | 0 | - | 4.52 | 41,187 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,916 |
| Geography of Scotland | 0 | - | 4.63 | 21,645 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,510 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,061 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,708 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,257 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,755 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,424 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,401 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,761 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,345 |
| African Island Countries | 0 | - | 4.96 | 101,818 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,739 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,390 |
| Australian States and Territories | 0 | - | 4.96 | 142,183 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,352 |
| Australia True or False | 0 | - | 4.87 | 56,934 |
| Flags of North and South America | 0 | - | 4.99 | 374,014 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,692 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,355 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,039 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,289 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,626 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,242 |
| North America Map Quiz | 0 | - | 4.98 | 249,175 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,790 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,432 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,364 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,279 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,946 |
