| Europe Geography Decoder | 0 | - | 4.86 | 69,510 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,179 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,230 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,238 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,711 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,552 |
| Official European Union Languages | 0 | - | 4.97 | 236,437 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,644 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,004 |
| German Groups of Things | 0 | - | 4.46 | 38,295 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,370 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,066 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,042 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,958 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,546 |
| British Groups of Things | 0 | - | 4.25 | 82,662 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,608 |
| Celtic Nations | 0 | - | 4.69 | 46,803 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,116 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,591 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,815 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,681 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,718 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,030 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,551 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,228 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,356 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,976 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,599 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,926 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,963 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,988 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,247 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,297 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,293 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,166 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,119 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,172 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,786 |
| States of Germany | 0 | - | 4.96 | 149,907 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,971 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,501 |
| Regions of Italy | 0 | - | 4.92 | 74,640 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,773 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,217 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,088 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,399 |
| Champions League Winners | 0 | - | 4.92 | 995,700 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,367 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,411 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,083 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,034 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,091 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,436 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,384 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,596 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,919 |
| Slavic Languages | 0 | - | 4.67 | 53,949 |
| Departments of France | 0 | - | 4.93 | 52,740 |
| Word Chain - France | 0 | - | 4.38 | 42,570 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,421 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,353 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,235 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,942 |
| England or Wales? | 0 | - | 4.94 | 45,293 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,392 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,108 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 273,051 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,641 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,503 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,420 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,769 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,503 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,028 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,062 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,094 |
| History of Russia Quiz | 0 | - | 4.49 | 31,782 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,555 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,520 |
| Name that Greek Letter | 0 | - | 4.94 | 321,512 |
| History of Italy | 0 | - | 4.55 | 31,806 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,126 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,470 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,972 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,905 |
| Famous People from Africa | 0 | - | 4.45 | 10,855 |
| Word Chain - Africa | 0 | - | 4.47 | 31,435 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,178 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,796 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,298 |
| 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 | 23,088 |
| Word Chain - Germany | 0 | - | 4.31 | 22,473 |
| The Trojan War | 0 | - | 4.83 | 39,413 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,462 |
| Word Chain - Italy | 0 | - | 4.07 | 23,084 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,015 |
| Roman Emperors | 0 | - | 4.95 | 118,372 |
| 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 | 16,626 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,496 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,794 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,879 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,847 |
| Australian Capitals | 0 | - | 4.92 | 62,589 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,411 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,341 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,845 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,778 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,653 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,178 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,816 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,636 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,599 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,002 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,269 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,568 |
| Regions of France | 0 | - | 4.78 | 119,121 |
| France Immigration by Country | 0 | - | 4.72 | 75,936 |
| Famous Germans | 0 | - | 4.50 | 54,590 |
| Germany True or False? | 0 | - | 4.61 | 48,514 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,431 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,500 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,295 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,748 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,034 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,907 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,184 |
| Asia Map Quiz | 0 | - | 4.99 | 906,480 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,313 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,312 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,143 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 65,858 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,765 |
| African East Coast | 0 | - | 4.96 | 94,982 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,865 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,749 |
| Word Chain - Australia | 0 | - | 4.37 | 38,008 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,988 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,172 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,854 |
| European Physical Geography | 0 | - | 4.26 | 33,369 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,438 |
| Country Codes of Europe | 0 | - | 3.46 | 13,649 |
| The Only European Country ... | 0 | - | 4.91 | 213,650 |
| Word Scramble - European Cities | 0 | - | 3.81 | 18,787 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,427 |
| Geography of Russia | 0 | - | 4.57 | 21,420 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,759 |
| History of Austria | 0 | - | 4.70 | 17,742 |
| Presidents of France | 0 | - | 4.25 | 23,888 |
| Geography of the French Empire | 0 | - | 4.48 | 26,920 |
| The French Revolution | 0 | - | 4.46 | 23,768 |
| France Multiple Choice | 0 | - | 4.38 | 40,626 |
| History of France | 0 | - | 4.59 | 55,954 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,379 |
| Ancient Greek Words | 0 | - | 4.92 | 110,619 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,589 |
| 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 | 117,030 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,693 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,187 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,387 |
| Name Every Beatles Song | 0 | - | 4.97 | 233,942 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,258 |
| Champions League Top 4 | 0 | - | 4.77 | 133,659 |
| Word Chain - Asia | 0 | - | 4.34 | 29,216 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,392 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,585,697 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,021 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 115,981 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,162 |
| Famous Duos #2 | 0 | - | 4.21 | 116,553 |
| Famous Duos Quiz #1 | 0 | - | 4.15 | 83,769 |
| MLB Baseball Groups of Things | 0 | - | 4.06 | 18,465 |
| Random Symbol to Element | 0 | - | 4.88 | 92,154 |
| Name a Valid World City | 0 | - | 4.83 | 70,060 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,732 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,112 |
| Countries of Africa | 0 | - | 5.00 | 2,506,079 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,973 |
| Australia Map Quiz | 0 | - | 4.94 | 342,355 |
| 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 | 4,140,677 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 742,945 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,683 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,194 |
| 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 | 94,853 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,227 |
