| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,777 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,177 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,234 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,550 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,075 |
| Slavic Languages | 0 | - | 4.68 | 54,102 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,689 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,638 |
| Celtic Nations | 0 | - | 4.69 | 46,855 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,288 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,449 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,994 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,481 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,806 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,016 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,958 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,016 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,147 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,688 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,914 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,320 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,731 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,256 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,781 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,594 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,542 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,464 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,561 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,156 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,902 |
| States of Germany | 0 | - | 4.96 | 150,776 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,250 |
| Regions of Italy | 0 | - | 4.92 | 75,026 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,021 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,936 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,616 |
| Champions League Winners | 0 | - | 4.92 | 999,340 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,051 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,490 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,618 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,184 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,618 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,352 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,841 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,776 |
| Departments of France | 0 | - | 4.93 | 53,126 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,499 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,412 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,309 |
| England or Wales? | 0 | - | 4.94 | 45,444 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,993 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,905 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,469 |
| Languages of Spain | 0 | - | 4.36 | 23,207 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,646 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,033 |
| History of Russia Quiz | 0 | - | 4.49 | 31,828 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,615 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,599 |
| History of Italy | 0 | - | 4.55 | 31,874 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,363 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,536 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,057 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,897 |
| Top World Languages | 0 | - | 4.92 | 815,817 |
| Australian Capitals | 0 | - | 4.92 | 62,636 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,063 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,664 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,053 |
| Capitals of French Regions | 0 | - | 4.45 | 16,010 |
| Capitals of German States | 0 | - | 4.74 | 28,877 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,167 |
| The Trojan War | 0 | - | 4.83 | 39,519 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,706 |
| Name that Greek Letter | 0 | - | 4.94 | 322,224 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,974 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,198 |
| Roman Emperors | 0 | - | 4.95 | 118,983 |
| Countries by Official Language | 0 | - | 4.95 | 193,242 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,891 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,193 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,805 |
| Countries in their Native Language | 0 | - | 4.99 | 197,074 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,233 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,620 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,494 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,604 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,067 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,037 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,913 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,382 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,190 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,974 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,748 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,122 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,500 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,080 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,720 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,030 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,069 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,724 |
| Country Codes of Europe | 0 | - | 3.46 | 13,666 |
| Regions of France | 0 | - | 4.78 | 119,707 |
| France Immigration by Country | 0 | - | 4.72 | 76,111 |
| Famous Germans | 0 | - | 4.50 | 54,770 |
| German Groups of Things | 0 | - | 4.46 | 38,356 |
| Germany True or False? | 0 | - | 4.61 | 48,619 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,644 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,762 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,981 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,119 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,670 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,018 |
| Asia Map Quiz | 0 | - | 4.99 | 909,565 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,095 |
| European Physical Geography | 0 | - | 4.26 | 33,409 |
| Geography of Russia | 0 | - | 4.57 | 21,461 |
| History of Austria | 0 | - | 4.70 | 17,784 |
| Geography of the French Empire | 0 | - | 4.45 | 26,977 |
| The French Revolution | 0 | - | 4.46 | 23,843 |
| France Multiple Choice | 0 | - | 4.38 | 40,669 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,413 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,694 |
| The Vikings! | 0 | - | 4.46 | 28,272 |
| The Portuguese Empire | 0 | - | 4.58 | 12,013 |
| American to British Word Translation | 0 | - | 4.13 | 137,735 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,815 |
| Countries of Africa | 0 | - | 5.00 | 2,516,583 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,124 |
| African East Coast | 0 | - | 4.96 | 95,377 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,235 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,073 |
| Australia Map Quiz | 0 | - | 4.94 | 342,997 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,767 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,406 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,627 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,936 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,082 |
| The Only European Country ... | 0 | - | 4.91 | 214,737 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,065 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,828 |
| Presidents of France | 0 | - | 4.25 | 23,951 |
| History of France | 0 | - | 4.59 | 56,458 |
| Ancient Greek Words | 0 | - | 4.93 | 110,982 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,783 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,982 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,368 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,437 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,728 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,973 |
| Champions League Top 4 | 0 | - | 4.77 | 134,596 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,995 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,435 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,717 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,357 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,159 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,425 |
| German-Speaking Countries | 0 | - | 4.89 | 123,638 |
| Italian Name Translation | 0 | - | 4.81 | 45,658 |
| French-Speaking Countries | 0 | - | 4.85 | 269,362 |
| Officially Recognized Languages of India | 0 | - | 4.38 | 31,160 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,581 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,020 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,801 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,557 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,728 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,532 |
| African Island Countries | 0 | - | 4.96 | 101,043 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,206 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,896 |
| Australian States and Territories | 0 | - | 4.96 | 141,215 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,098 |
| Australia True or False | 0 | - | 4.87 | 56,616 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,326 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,416 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,651 |
| North America Map Quiz | 0 | - | 4.98 | 245,934 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,322 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,619 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,373 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,800 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,041 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,662 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,621 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,309 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,036 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,377 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,472 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,603 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,996 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,577 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,037 |
| European Geography A-Z | 0 | - | 4.28 | 49,081 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,660 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,081 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,582 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,399 |
| Slavic Countries | 0 | - | 4.96 | 111,111 |
| Austria... or Australia? | 0 | - | 4.68 | 104,034 |
| Word Chain - France | 0 | - | 4.38 | 42,645 |
