| European Countries by First 2 Letters | 0 | - | 4.95 | 527,541 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,312 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,865 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,256 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,828 |
| Official European Union Languages | 0 | - | 4.97 | 237,570 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,260 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,375 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,611 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,629 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,974 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,242 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,654 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,989 |
| Celtic Nations | 0 | - | 4.69 | 46,868 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,849 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,202 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,069 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,112 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,289 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,177 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,721 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,257 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,107 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,750 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,057 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,098 |
| German Groups of Things | 0 | - | 4.46 | 38,371 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,180 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 320,584 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,700 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,595 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,543 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,281 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,638 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,098 |
| States of Germany | 0 | - | 4.96 | 150,965 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,311 |
| Regions of Italy | 0 | - | 4.92 | 75,123 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,069 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,093 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,675 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,609 |
| Champions League Winners | 0 | - | 4.92 | 1,000,219 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,527 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,685 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,498 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,502 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,623 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,761 |
| Slavic Languages | 0 | - | 4.68 | 54,138 |
| Departments of France | 0 | - | 4.93 | 53,203 |
| Word Chain - France | 0 | - | 4.38 | 42,669 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,514 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,423 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,327 |
| British Groups of Things | 0 | - | 4.25 | 82,758 |
| England or Wales? | 0 | - | 4.94 | 45,473 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,148 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,450 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 274,098 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,229 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,987 |
| Christmas Decoder | 0 | - | 4.42 | 49,420 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,294 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,086 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,617 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,066 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,526 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,292 |
| History of Russia Quiz | 0 | - | 4.49 | 31,834 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,629 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,253 |
| Name that Greek Letter | 0 | - | 4.93 | 322,428 |
| History of Italy | 0 | - | 4.55 | 31,888 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,404 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,551 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,080 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,961 |
| Famous People from Africa | 0 | - | 4.45 | 10,920 |
| Word Chain - Africa | 0 | - | 4.47 | 31,530 |
| Four Letter African Geography | 0 | - | 4.74 | 18,155 |
| Canada Decoder | 0 | - | 4.12 | 18,680 |
| Europe Map Quiz | 0 | - | 5.00 | 4,743,851 |
| Word Chain - Russia | 0 | - | 4.33 | 15,717 |
| Capitals of French Regions | 0 | - | 4.45 | 16,014 |
| Capitals of German States | 0 | - | 4.74 | 28,886 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,182 |
| Word Chain - Germany | 0 | - | 4.31 | 22,519 |
| The Trojan War | 0 | - | 4.83 | 39,545 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,093 |
| Word Chain - Italy | 0 | - | 4.07 | 23,131 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,250 |
| Roman Emperors | 0 | - | 4.95 | 119,141 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,331 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,290 |
| Name a Valid English City | 0 | - | 4.19 | 16,667 |
| Halloween Decoder | 0 | - | 4.21 | 45,568 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,882 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,882 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,087 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,001 |
| Australian Capitals | 0 | - | 4.92 | 62,647 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,673 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,656 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,110 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,090 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,965 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,428 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,277 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,017 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,796 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,427 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,578 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,784 |
| Regions of France | 0 | - | 4.78 | 119,865 |
| France Immigration by Country | 0 | - | 4.72 | 76,155 |
| Famous Germans | 0 | - | 4.50 | 54,808 |
| Germany True or False? | 0 | - | 4.61 | 48,646 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,694 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,093 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,832 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,016 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,136 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,804 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,645 |
| Asia Map Quiz | 0 | - | 4.99 | 910,385 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,393 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,416 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,189 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,207 |
| African East Coast | 0 | - | 4.96 | 95,454 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,316 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,145 |
| Word Chain - Australia | 0 | - | 4.37 | 38,069 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,961 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,434 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,802 |
| European Physical Geography | 0 | - | 4.26 | 33,414 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,213 |
| Country Codes of Europe | 0 | - | 3.46 | 13,672 |
| The Only European Country ... | 0 | - | 4.91 | 214,958 |
| Word Scramble - European Cities | 0 | - | 3.83 | 18,850 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,213 |
| Geography of Russia | 0 | - | 4.57 | 21,470 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,841 |
| History of Austria | 0 | - | 4.70 | 17,793 |
| Presidents of France | 0 | - | 4.25 | 23,965 |
| Geography of the French Empire | 0 | - | 4.45 | 26,988 |
| The French Revolution | 0 | - | 4.46 | 23,855 |
| France Multiple Choice | 0 | - | 4.38 | 40,675 |
| History of France | 0 | - | 4.59 | 56,550 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,421 |
| Ancient Greek Words | 0 | - | 4.93 | 111,049 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,811 |
| The Vikings! | 0 | - | 4.46 | 28,281 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,803 |
| The Portuguese Empire | 0 | - | 4.58 | 12,026 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,988 |
| American to British Word Translation | 0 | - | 4.13 | 138,138 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,798 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,406 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,446 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,918 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,080 |
| Champions League Top 4 | 0 | - | 4.77 | 134,823 |
| Word Chain - Asia | 0 | - | 4.34 | 29,265 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,127 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,602,020 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,221 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,032 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,751 |
| Random Symbol to Element | 0 | - | 4.88 | 92,478 |
| Name a Valid World City | 0 | - | 4.83 | 70,493 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 68,565 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,748 |
| Countries of Africa | 0 | - | 5.00 | 2,519,113 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,010 |
| Australia Map Quiz | 0 | - | 4.94 | 343,156 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,664 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,243 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,512 |
| Word Chain - South America | 0 | - | 4.51 | 23,822 |
| United States Map Quiz | 0 | - | 4.98 | 4,147,544 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 745,014 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,899 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,102 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,415 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,842 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,080 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,704 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,663 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,350 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,074 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,417 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,641 |
| European Geography A-Z | 0 | - | 4.28 | 49,096 |
| Austria... or Australia? | 0 | - | 4.68 | 104,065 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,859 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,831 |
