| Germany Multiple Choice | 0 | - | 4.84 | 54,737 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,504 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,093 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,927 |
| Capitals of German States | 0 | - | 4.74 | 29,091 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,576 |
| States of Germany | 0 | - | 4.95 | 154,864 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,787 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,859 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,832 |
| Official European Union Languages | 0 | - | 4.97 | 240,182 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,780 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,294 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,573 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,755 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,661 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,370 |
| Celtic Nations | 0 | - | 4.61 | 47,124 |
| Capitals of French Regions | 0 | - | 4.45 | 16,193 |
| History of Italy | 0 | - | 4.55 | 32,178 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,493 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,841 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,462 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,534 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,115 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,092 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,372 |
| Geography of Germany | 0 | - | 4.35 | 17,354 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,453 |
| Famous Germans | 0 | - | 4.50 | 55,853 |
| German Groups of Things | 0 | - | 4.47 | 38,660 |
| Germany True or False? | 0 | - | 4.61 | 49,059 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,078 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,870 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,803 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 89,046 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,137 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,864 |
| 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 | 40,871 |
| Regions of Italy | 0 | - | 4.92 | 77,227 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,890 |
| The Vikings! | 0 | - | 4.46 | 28,419 |
| The Portuguese Empire | 0 | - | 4.58 | 12,116 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,533 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,874 |
| American to British Word Translation | 0 | - | 4.14 | 139,800 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,087 |
| Champions League Winners | 0 | - | 4.92 | 1,017,592 |
| Presidents of France | 0 | - | 4.25 | 24,365 |
| History of France | 0 | - | 4.61 | 57,706 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,130 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,769 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,738 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,426 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 123,700 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,232 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,252 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,184 |
| Slavic Languages | 0 | - | 4.67 | 54,763 |
| Departments of France | 0 | - | 4.93 | 55,353 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,772 |
| England or Wales? | 0 | - | 4.94 | 46,010 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,397 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,034 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,192 |
| History of Spain | 0 | - | 4.23 | 21,173 |
| Languages of Spain | 0 | - | 4.36 | 23,462 |
| British to American Word Translation | 0 | - | 3.74 | 255,390 |
| British Foods by Description | 0 | - | 3.94 | 48,402 |
| British and American Word Differences | 0 | - | 2.63 | 46,938 |
| British Geography Quiz #2 | 0 | - | 4.30 | 28,246 |
| Bridges of London | 0 | - | 4.17 | 10,149 |
| British Sport Trivia | 0 | - | 4.39 | 20,543 |
| Famous Welsh People | 0 | - | 4.34 | 11,721 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,939 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,606 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,981 |
| History of Russia Quiz | 0 | - | 4.47 | 32,019 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,897 |
| History of Germany | 0 | - | 4.39 | 52,994 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,726 |
| Name that Greek Letter | 0 | - | 4.93 | 325,197 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,138 |
| Europe Map Quiz | 0 | - | 5.00 | 4,792,213 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,603 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,781 |
| Word Chain - Germany | 0 | - | 4.31 | 22,693 |
| The Trojan War | 0 | - | 4.83 | 40,039 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,133 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,668 |
| Roman Emperors | 0 | - | 4.95 | 121,382 |
| British Noble Ranks | 0 | - | 3.85 | 20,505 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,135 |
| Australian Capitals | 0 | - | 4.92 | 62,858 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,331 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,730 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,234 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,660 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,256 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,766 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,274 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,881 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,160 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,770 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,557 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,229 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,499 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,458 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,552 |
| Regions of France | 0 | - | 4.70 | 122,339 |
| France Immigration by Country | 0 | - | 4.70 | 76,992 |
| German Loan Words | 0 | - | 4.27 | 141,176 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,561 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,270 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,516 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,893 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,428 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,928 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,231 |
| Asia Map Quiz | 0 | - | 4.99 | 926,422 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,410 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,579 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,254 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,972 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,137 |
| European Physical Geography | 0 | - | 4.26 | 33,613 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,425 |
| Country Codes of Europe | 0 | - | 3.45 | 13,845 |
| The Only European Country ... | 0 | - | 4.91 | 219,483 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,778 |
| Geography of Russia | 0 | - | 4.57 | 21,615 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,156 |
| German History A-Z | 0 | - | 4.49 | 24,938 |
| Ancient Greek Words | 0 | - | 4.93 | 112,623 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,583 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,430 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,421 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,842 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,619 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,955 |
| Champions League Top 4 | 0 | - | 4.78 | 139,485 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,116 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,215 |
| African East Coast | 0 | - | 4.96 | 96,902 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,782 |
| Australia Map Quiz | 0 | - | 4.95 | 346,426 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,134 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,502 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,386 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,633 |
| 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 | 63,929 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,987 |
| European Geography A-Z | 0 | - | 4.29 | 49,513 |
| Austria... or Australia? | 0 | - | 4.67 | 104,822 |
| Famous French People | 0 | - | 4.05 | 36,149 |
| Word Chain - France | 0 | - | 4.38 | 42,955 |
| Bundesliga Champions | 0 | - | 4.25 | 57,397 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 47,834 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,275 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,068 |
| Italian Foods | 0 | - | 4.30 | 73,369 |
| Countries Italy Declared War On | 0 | - | 4.74 | 47,862 |
| The Mafia Quiz | 0 | - | 4.46 | 23,449 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,267 |
| History of The Netherlands | 0 | - | 4.46 | 17,570 |
| Canary Islands | 0 | - | 4.62 | 17,548 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,140 |
| British Spellings | 0 | - | 4.06 | 99,623 |
| British Groups of Things | 0 | - | 4.26 | 83,037 |
| British Acronyms | 0 | - | 4.40 | 45,958 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,123 |
| British Monopoly Board | 0 | - | 4.52 | 41,286 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,196 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,888 |
| Countries of Africa | 0 | - | 5.00 | 2,563,741 |
| 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 | 57,198 |
| Flags of North and South America | 0 | - | 4.99 | 377,906 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,065 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,959 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,831 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,121 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,780 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,975 |
| North America Map Quiz | 0 | - | 4.98 | 252,629 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,031 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,930 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,210 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,641 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,232 |
