| Europe Geography Decoder | 0 | - | 4.86 | 69,509 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,155 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,229 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,206 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,700 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,548 |
| Official European Union Languages | 0 | - | 4.97 | 236,424 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,636 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,988 |
| German Groups of Things | 0 | - | 4.46 | 38,295 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,346 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,050 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,017 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,943 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,544 |
| British Groups of Things | 0 | - | 4.25 | 82,660 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,578 |
| Celtic Nations | 0 | - | 4.69 | 46,802 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,112 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,589 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,812 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,667 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,696 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,030 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,500 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,221 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,343 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,972 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,597 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,924 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,962 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,987 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,238 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,293 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,288 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,157 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,113 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,168 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,758 |
| States of Germany | 0 | - | 4.96 | 149,896 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,967 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,500 |
| Regions of Italy | 0 | - | 4.92 | 74,629 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,769 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,206 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,085 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,399 |
| Champions League Winners | 0 | - | 4.92 | 995,609 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,361 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,406 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,062 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,022 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,081 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,434 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,383 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,596 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,911 |
| Slavic Languages | 0 | - | 4.67 | 53,948 |
| Departments of France | 0 | - | 4.93 | 52,728 |
| Word Chain - France | 0 | - | 4.38 | 42,570 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,420 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,352 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,234 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,942 |
| England or Wales? | 0 | - | 4.94 | 45,290 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,378 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,098 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 273,029 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,629 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,493 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,408 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,767 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,501 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,015 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,057 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,089 |
| History of Russia Quiz | 0 | - | 4.49 | 31,782 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,554 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,484 |
| Name that Greek Letter | 0 | - | 4.94 | 321,502 |
| History of Italy | 0 | - | 4.55 | 31,806 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,121 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,470 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,968 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,905 |
| Famous People from Africa | 0 | - | 4.45 | 10,853 |
| Word Chain - Africa | 0 | - | 4.47 | 31,433 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,177 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,796 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,015 |
| Word Chain - Russia | 0 | - | 4.33 | 15,684 |
| Capitals of French Regions | 0 | - | 4.45 | 15,981 |
| Capitals of German States | 0 | - | 4.74 | 28,805 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,087 |
| Word Chain - Germany | 0 | - | 4.31 | 22,473 |
| The Trojan War | 0 | - | 4.83 | 39,409 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,441 |
| Word Chain - Italy | 0 | - | 4.07 | 23,083 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,011 |
| Roman Emperors | 0 | - | 4.95 | 118,362 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,279 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,233 |
| Name a Valid English City | 0 | - | 4.19 | 16,624 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,401 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,793 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,809 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,845 |
| Australian Capitals | 0 | - | 4.92 | 62,587 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,407 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,339 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,842 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,777 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,650 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,175 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,814 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,634 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,597 |
| European Geography By Letter - V | 0 | - | 4.43 | 91,999 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,263 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,566 |
| Regions of France | 0 | - | 4.78 | 119,112 |
| France Immigration by Country | 0 | - | 4.72 | 75,934 |
| Famous Germans | 0 | - | 4.50 | 54,586 |
| Germany True or False? | 0 | - | 4.61 | 48,514 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,426 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,412 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,288 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,745 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,034 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,897 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,986 |
| Asia Map Quiz | 0 | - | 4.99 | 906,381 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,312 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,311 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,142 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 65,856 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,762 |
| African East Coast | 0 | - | 4.96 | 94,977 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,857 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,748 |
| Word Chain - Australia | 0 | - | 4.37 | 38,008 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,967 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,165 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,840 |
| European Physical Geography | 0 | - | 4.26 | 33,368 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,428 |
| Country Codes of Europe | 0 | - | 3.46 | 13,649 |
| The Only European Country ... | 0 | - | 4.91 | 213,631 |
| Word Scramble - European Cities | 0 | - | 3.81 | 18,787 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,413 |
| Geography of Russia | 0 | - | 4.57 | 21,419 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,759 |
| History of Austria | 0 | - | 4.70 | 17,742 |
| Presidents of France | 0 | - | 4.25 | 23,877 |
| Geography of the French Empire | 0 | - | 4.48 | 26,920 |
| The French Revolution | 0 | - | 4.46 | 23,761 |
| France Multiple Choice | 0 | - | 4.38 | 40,625 |
| History of France | 0 | - | 4.59 | 55,949 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,378 |
| Ancient Greek Words | 0 | - | 4.92 | 110,614 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,582 |
| The Vikings! | 0 | - | 4.45 | 28,237 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,671 |
| The Portuguese Empire | 0 | - | 4.54 | 11,984 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,954 |
| American to British Word Translation | 0 | - | 4.06 | 117,026 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,692 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,186 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,386 |
| Name Every Beatles Song | 0 | - | 4.97 | 233,926 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,249 |
| Champions League Top 4 | 0 | - | 4.77 | 133,642 |
| Word Chain - Asia | 0 | - | 4.34 | 29,215 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,380 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,585,393 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 162,988 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 115,962 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,153 |
| Famous Duos #2 | 0 | - | 4.21 | 116,551 |
| Famous Duos Quiz #1 | 0 | - | 4.15 | 83,768 |
| MLB Baseball Groups of Things | 0 | - | 4.06 | 18,464 |
| Random Symbol to Element | 0 | - | 4.88 | 92,148 |
| Name a Valid World City | 0 | - | 4.83 | 70,053 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,713 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,100 |
| Countries of Africa | 0 | - | 5.00 | 2,505,876 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,972 |
| Australia Map Quiz | 0 | - | 4.94 | 342,342 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,609 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,183 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,461 |
| Word Chain - South America | 0 | - | 4.51 | 23,758 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,481 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 742,923 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,679 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,173 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,164 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,405 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,850 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,227 |
