| European Countries by First 2 Letters | 0 | - | 4.95 | 532,954 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,835 |
| Official European Union Languages | 0 | - | 4.97 | 240,209 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,783 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,306 |
| Slavic Languages | 0 | - | 4.67 | 54,768 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,372 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,094 |
| Celtic Nations | 0 | - | 4.61 | 47,124 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,897 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,534 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,118 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,098 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,387 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,738 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,505 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,465 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,804 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,860 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,080 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,871 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 89,046 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,141 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,871 |
| States of Germany | 0 | - | 4.95 | 154,876 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,788 |
| Regions of Italy | 0 | - | 4.92 | 77,232 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,897 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,537 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,876 |
| Champions League Winners | 0 | - | 4.92 | 1,017,618 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,156 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,769 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,740 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,429 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 123,720 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,241 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,258 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,190 |
| Departments of France | 0 | - | 4.93 | 55,359 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,755 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,772 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,662 |
| England or Wales? | 0 | - | 4.94 | 46,011 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,402 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,946 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,612 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,983 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,035 |
| History of Russia Quiz | 0 | - | 4.47 | 32,020 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,203 |
| History of Italy | 0 | - | 4.55 | 32,178 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,495 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,842 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,463 |
| Australian Capitals | 0 | - | 4.92 | 62,858 |
| Europe Map Quiz | 0 | - | 5.00 | 4,792,341 |
| Capitals of French Regions | 0 | - | 4.45 | 16,194 |
| Capitals of German States | 0 | - | 4.74 | 29,092 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,577 |
| The Trojan War | 0 | - | 4.83 | 40,040 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,751 |
| Name that Greek Letter | 0 | - | 4.93 | 325,201 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,135 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,669 |
| Roman Emperors | 0 | - | 4.95 | 121,384 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,155 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,332 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,731 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,236 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,667 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,257 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,768 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,275 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,882 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,161 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,773 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,558 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,230 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,499 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,459 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,556 |
| Country Codes of Europe | 0 | - | 3.45 | 13,845 |
| Regions of France | 0 | - | 4.70 | 122,344 |
| France Immigration by Country | 0 | - | 4.70 | 76,995 |
| Famous Germans | 0 | - | 4.50 | 55,856 |
| German Groups of Things | 0 | - | 4.47 | 38,661 |
| Germany True or False? | 0 | - | 4.61 | 49,059 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,562 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,517 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,895 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,428 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,930 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,246 |
| Asia Map Quiz | 0 | - | 4.99 | 926,458 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,454 |
| European Physical Geography | 0 | - | 4.26 | 33,613 |
| Geography of Russia | 0 | - | 4.57 | 21,615 |
| History of Austria | 0 | - | 4.70 | 17,991 |
| Geography of the French Empire | 0 | - | 4.45 | 27,229 |
| The French Revolution | 0 | - | 4.47 | 24,164 |
| France Multiple Choice | 0 | - | 4.39 | 40,872 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,573 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,282 |
| The Vikings! | 0 | - | 4.46 | 28,419 |
| The Portuguese Empire | 0 | - | 4.58 | 12,116 |
| American to British Word Translation | 0 | - | 4.14 | 139,801 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,087 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,583 |
| Australia Map Quiz | 0 | - | 4.95 | 346,437 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,269 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,973 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,147 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,508 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,432 |
| The Only European Country ... | 0 | - | 4.91 | 219,497 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,781 |
| Presidents of France | 0 | - | 4.25 | 24,365 |
| History of France | 0 | - | 4.61 | 57,708 |
| Ancient Greek Words | 0 | - | 4.93 | 112,623 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,432 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,130 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,422 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,842 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,623 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,958 |
| Champions League Top 4 | 0 | - | 4.78 | 139,495 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,124 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,903 |
| Countries of Africa | 0 | - | 5.00 | 2,563,832 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,216 |
| African East Coast | 0 | - | 4.96 | 96,906 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,785 |
| Australian States and Territories | 0 | - | 4.96 | 143,009 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,536 |
| Australia True or False | 0 | - | 4.86 | 57,199 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,068 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,962 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,834 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,780 |
| North America Map Quiz | 0 | - | 4.98 | 252,635 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,031 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,172 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,644 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,233 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,387 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,634 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,335 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,108 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,690 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,334 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,717 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,687 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,930 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,989 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,741 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,493 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,187 |
| European Geography A-Z | 0 | - | 4.29 | 49,513 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,890 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,700 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,338 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,894 |
| Slavic Countries | 0 | - | 4.96 | 112,481 |
| Austria... or Australia? | 0 | - | 4.67 | 104,825 |
| Famous French People | 0 | - | 4.05 | 36,151 |
| Word Chain - France | 0 | - | 4.38 | 42,955 |
| Geography of Germany | 0 | - | 4.35 | 17,360 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,275 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,069 |
| Italian Foods | 0 | - | 4.30 | 73,370 |
| The Mafia Quiz | 0 | - | 4.46 | 23,450 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,279 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,587 |
| History of The Netherlands | 0 | - | 4.46 | 17,570 |
| History of Spain | 0 | - | 4.23 | 21,173 |
| Languages of Spain | 0 | - | 4.36 | 23,463 |
| Canary Islands | 0 | - | 4.62 | 17,548 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,141 |
| British to American Word Translation | 0 | - | 3.74 | 255,390 |
| British Foods by Description | 0 | - | 3.94 | 48,402 |
| British Spellings | 0 | - | 4.06 | 99,623 |
| British Groups of Things | 0 | - | 4.26 | 83,038 |
| British and American Word Differences | 0 | - | 2.63 | 46,938 |
| British Acronyms | 0 | - | 4.40 | 45,958 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,123 |
| British Monopoly Board | 0 | - | 4.52 | 41,290 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,197 |
| British Geography Quiz #2 | 0 | - | 4.30 | 28,246 |
| Bridges of London | 0 | - | 4.17 | 10,149 |
| British Sport Trivia | 0 | - | 4.39 | 20,545 |
| Famous Welsh People | 0 | - | 4.34 | 11,721 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,912 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,697 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,054 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,290 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,979 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,458 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,192 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,856 |
