| European Countries by First 2 Letters | 0 | - | 4.95 | 528,136 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,904 |
| Official European Union Languages | 0 | - | 4.97 | 237,844 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,430 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,902 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,798 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,699 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,336 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,157 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,589 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,864 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,230 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,810 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,335 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,177 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,636 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,595 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,663 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,691 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,756 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,482 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,733 |
| States of Germany | 0 | - | 4.96 | 151,386 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,704 |
| Regions of Italy | 0 | - | 4.92 | 75,337 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,120 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,363 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,812 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,381 |
| Champions League Winners | 0 | - | 4.92 | 1,001,957 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,527 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,636 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,364 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,054 |
| Slavic Languages | 0 | - | 4.68 | 54,204 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,542 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,385 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,134 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,946 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,322 |
| Departments of France | 0 | - | 4.93 | 53,497 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,476 |
| England or Wales? | 0 | - | 4.94 | 45,529 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,446 |
| Australian Capitals | 0 | - | 4.92 | 62,673 |
| Europe Map Quiz | 0 | - | 5.00 | 4,749,495 |
| Country Codes of Europe | 0 | - | 3.43 | 13,688 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,703 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,217 |
| History of Russia Quiz | 0 | - | 4.49 | 31,861 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,665 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,671 |
| Capitals of French Regions | 0 | - | 4.45 | 16,026 |
| Capitals of German States | 0 | - | 4.74 | 28,904 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,235 |
| History of Italy | 0 | - | 4.55 | 31,915 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,539 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,590 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,124 |
| Africa Map Quiz | 0 | - | 5.00 | 2,112,263 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,256 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,739 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,167 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,139 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,029 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,491 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,398 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,065 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,839 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,469 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,666 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,165 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,818 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,101 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,143 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,828 |
| Regions of France | 0 | - | 4.78 | 120,149 |
| France Immigration by Country | 0 | - | 4.70 | 76,290 |
| Famous Germans | 0 | - | 4.50 | 54,893 |
| German Groups of Things | 0 | - | 4.46 | 38,402 |
| Germany True or False? | 0 | - | 4.61 | 48,682 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,780 |
| The Trojan War | 0 | - | 4.83 | 39,604 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,215 |
| Name that Greek Letter | 0 | - | 4.93 | 322,789 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,316 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,979 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,340 |
| Roman Emperors | 0 | - | 4.95 | 119,445 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,119 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,171 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,935 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,865 |
| Asia Map Quiz | 0 | - | 4.99 | 912,106 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,393 |
| African East Coast | 0 | - | 4.96 | 95,636 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,466 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,302 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,348 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,513 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,172 |
| European Physical Geography | 0 | - | 4.26 | 33,439 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,508 |
| The Only European Country ... | 0 | - | 4.91 | 215,495 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,497 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 27,967 |
| Geography of Russia | 0 | - | 4.57 | 21,495 |
| History of Austria | 0 | - | 4.70 | 17,816 |
| Presidents of France | 0 | - | 4.25 | 24,004 |
| Geography of the French Empire | 0 | - | 4.45 | 27,011 |
| The French Revolution | 0 | - | 4.46 | 23,879 |
| France Multiple Choice | 0 | - | 4.38 | 40,688 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,446 |
| The Vikings! | 0 | - | 4.46 | 28,301 |
| The Portuguese Empire | 0 | - | 4.58 | 12,038 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,999 |
| American to British Word Translation | 0 | - | 4.13 | 138,500 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,828 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,351 |
| Countries of Africa | 0 | - | 5.00 | 2,524,796 |
| Australia Map Quiz | 0 | - | 4.94 | 343,504 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,551 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,879 |
| History of France | 0 | - | 4.59 | 56,696 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,886 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,954 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,479 |
| Champions League Top 4 | 0 | - | 4.77 | 135,268 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,877 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,442 |
| United States Map Quiz | 0 | - | 4.98 | 4,150,107 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,470 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,889 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,146 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,763 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,705 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,391 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,110 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,455 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,563 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,678 |
| European Geography A-Z | 0 | - | 4.29 | 49,143 |
| Word Chain - France | 0 | - | 4.38 | 42,705 |
| Ancient Greek Words | 0 | - | 4.93 | 111,197 |
| Italian Foods | 0 | - | 4.31 | 72,531 |
| The Mafia Quiz | 0 | - | 4.46 | 23,261 |
| History of The Netherlands | 0 | - | 4.46 | 17,377 |
| Canary Islands | 0 | - | 4.61 | 17,449 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,501 |
| British Spellings | 0 | - | 4.06 | 99,369 |
| British Groups of Things | 0 | - | 4.25 | 82,802 |
| British Acronyms | 0 | - | 4.39 | 45,724 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,003 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,504 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,273 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,273 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,756 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,769 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,390 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,007 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,811 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,923 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,895 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,374 |
| African Island Countries | 0 | - | 4.96 | 101,264 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,795 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,034 |
| Australian States and Territories | 0 | - | 4.96 | 141,480 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,179 |
| Australia Country Quiz | 0 | - | 4.43 | 69,473 |
| Australia True or False | 0 | - | 4.87 | 56,711 |
| Flags of North and South America | 0 | - | 4.99 | 370,912 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,447 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,627 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,040 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,717 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,567 |
| North America Map Quiz | 0 | - | 4.98 | 247,036 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,590 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,389 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,369 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,943 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,727 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,236,832 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,497 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,260 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,808 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,714 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,857 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,515 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,840 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,590 |
| Slavic Countries | 0 | - | 4.96 | 111,344 |
| Austria... or Australia? | 0 | - | 4.68 | 104,155 |
| Geography of Germany | 0 | - | 4.35 | 17,144 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,888 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,855 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,189 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,502 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,897 |
