| Europe Geography Decoder | 0 | - | 4.87 | 70,324 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,550 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,507 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,800 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,993 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,739 |
| Official European Union Languages | 0 | - | 4.97 | 239,824 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,662 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,928 |
| German Groups of Things | 0 | - | 4.47 | 38,637 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,906 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,948 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,953 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,337 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,060 |
| British Groups of Things | 0 | - | 4.26 | 83,020 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,635 |
| Celtic Nations | 0 | - | 4.61 | 47,102 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,549 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,746 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,032 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,813 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,866 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,698 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,452 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,799 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 202,072 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 184,446 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,533 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,188 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,464 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,433 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,681 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,961 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,783 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,754 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,861 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,533 |
| States of Germany | 0 | - | 4.95 | 154,548 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,704 |
| Regions of Italy | 0 | - | 4.92 | 77,100 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,811 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,346 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,775 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Champions League Winners | 0 | - | 4.92 | 1,016,308 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,584 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,235 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,765 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,735 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 81,368 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,574 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,747 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,899 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,720 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,274 |
| Slavic Languages | 0 | - | 4.67 | 54,699 |
| Departments of France | 0 | - | 4.93 | 55,175 |
| Word Chain - France | 0 | - | 4.38 | 42,940 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,742 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,746 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,630 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,110 |
| England or Wales? | 0 | - | 4.94 | 45,973 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,176 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 109,311 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 276,731 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,385 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,742 |
| Word Chain - Africa | 0 | - | 4.47 | 31,719 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,446 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,949 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,089 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,731 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,393 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,855 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,860 |
| History of Russia Quiz | 0 | - | 4.47 | 32,006 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,873 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,021 |
| Name that Greek Letter | 0 | - | 4.93 | 325,002 |
| History of Italy | 0 | - | 4.55 | 32,149 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,385 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,825 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,428 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,089 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,447 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,983 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,731 |
| Word Chain - Russia | 0 | - | 4.33 | 15,798 |
| Capitals of French Regions | 0 | - | 4.45 | 16,184 |
| Capitals of German States | 0 | - | 4.74 | 29,072 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,546 |
| Word Chain - Germany | 0 | - | 4.31 | 22,683 |
| The Trojan War | 0 | - | 4.83 | 39,993 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,975 |
| Word Chain - Italy | 0 | - | 4.07 | 23,223 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,596 |
| Roman Emperors | 0 | - | 4.95 | 121,222 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,480 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,413 |
| Name a Valid English City | 0 | - | 4.19 | 16,828 |
| Famous People from Africa | 0 | - | 4.45 | 11,009 |
| Four Letter African Geography | 0 | - | 4.68 | 19,789 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,490 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,416 |
| Australian Capitals | 0 | - | 4.92 | 62,835 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 94,401 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,223 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,625 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,060 |
| European Geography By Letter - D | 0 | - | 4.49 | 117,845 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,136 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,592 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,177 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,686 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,086 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,655 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,477 |
| Regions of France | 0 | - | 4.70 | 122,124 |
| France Immigration by Country | 0 | - | 4.70 | 76,941 |
| Famous Germans | 0 | - | 4.50 | 55,797 |
| Germany True or False? | 0 | - | 4.61 | 49,022 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,479 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,811 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,393 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,776 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,408 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,836 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,607 |
| Asia Map Quiz | 0 | - | 4.99 | 925,335 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,661 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,738 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,362 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,882 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,099 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 66,657 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,474 |
| Word Chain - Australia | 0 | - | 4.38 | 38,247 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,982 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,931 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,835 |
| European Physical Geography | 0 | - | 4.26 | 33,597 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,166 |
| Country Codes of Europe | 0 | - | 3.45 | 13,833 |
| The Only European Country ... | 0 | - | 4.91 | 219,076 |
| Word Scramble - European Cities | 0 | - | 3.84 | 18,969 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,547 |
| Geography of Russia | 0 | - | 4.57 | 21,601 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,132 |
| History of Austria | 0 | - | 4.70 | 17,975 |
| Presidents of France | 0 | - | 4.25 | 24,343 |
| Geography of the French Empire | 0 | - | 4.45 | 27,218 |
| The French Revolution | 0 | - | 4.47 | 24,148 |
| France Multiple Choice | 0 | - | 4.39 | 40,851 |
| History of France | 0 | - | 4.61 | 57,627 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,560 |
| Ancient Greek Words | 0 | - | 4.93 | 112,480 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,505 |
| The Vikings! | 0 | - | 4.46 | 28,407 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,391 |
| The Portuguese Empire | 0 | - | 4.58 | 12,107 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,118 |
| American to British Word Translation | 0 | - | 4.14 | 139,707 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,063 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,377 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,818 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,359 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,817 |
| Champions League Top 4 | 0 | - | 4.78 | 139,134 |
| Word Chain - Asia | 0 | - | 4.34 | 29,392 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,963 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,918 |
| African East Coast | 0 | - | 4.96 | 96,785 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,638 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 71,070 |
| Solve the Secret Country #1 | 0 | - | 4.93 | 168,267 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 120,487 |
| Anagram Chain - Countries | 0 | - | 4.98 | 117,712 |
| Famous Duos #2 | 0 | - | 4.18 | 117,645 |
| Famous Duos Quiz #1 | 0 | - | 4.15 | 84,354 |
| MLB Baseball Groups of Things | 0 | - | 4.11 | 18,618 |
| Random Symbol to Element | 0 | - | 4.88 | 94,039 |
| Name a Valid World City | 0 | - | 4.85 | 72,010 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,653,928 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,956 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,134 |
| Australia Map Quiz | 0 | - | 4.95 | 346,196 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,862 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,148 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,909 |
| Word Chain - South America | 0 | - | 4.51 | 24,007 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,617 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,856 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,436 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,261 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,279 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,545 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,256 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,017 |
