| Germany Multiple Choice | 0 | - | 4.84 | 54,710 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,475 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,065 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,671 |
| Capitals of German States | 0 | - | 4.74 | 29,076 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,554 |
| States of Germany | 0 | - | 4.95 | 154,663 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,731 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,844 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,778 |
| Official European Union Languages | 0 | - | 4.97 | 239,885 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,709 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,077 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,564 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,747 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,640 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,339 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,513 |
| Celtic Nations | 0 | - | 4.61 | 47,107 |
| Capitals of French Regions | 0 | - | 4.45 | 16,185 |
| History of Italy | 0 | - | 4.55 | 32,160 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,415 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,830 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,436 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,060 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,901 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,062 |
| Geography of Germany | 0 | - | 4.35 | 17,293 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,998 |
| Famous Germans | 0 | - | 4.50 | 55,813 |
| German Groups of Things | 0 | - | 4.47 | 38,645 |
| Germany True or False? | 0 | - | 4.61 | 49,033 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,032 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,812 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,768 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,953 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,027 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,642 |
| History of Austria | 0 | - | 4.70 | 17,978 |
| Geography of the French Empire | 0 | - | 4.45 | 27,221 |
| The French Revolution | 0 | - | 4.47 | 24,153 |
| France Multiple Choice | 0 | - | 4.39 | 40,857 |
| Regions of Italy | 0 | - | 4.92 | 77,145 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,829 |
| The Vikings! | 0 | - | 4.46 | 28,412 |
| The Portuguese Empire | 0 | - | 4.58 | 12,113 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,413 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,797 |
| American to British Word Translation | 0 | - | 4.14 | 139,739 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,069 |
| Champions League Winners | 0 | - | 4.92 | 1,016,738 |
| Presidents of France | 0 | - | 4.25 | 24,346 |
| History of France | 0 | - | 4.61 | 57,657 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,121 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,755 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,724 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,366 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,763 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,016 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,020 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,029 |
| Slavic Languages | 0 | - | 4.67 | 54,716 |
| Departments of France | 0 | - | 4.93 | 55,240 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,753 |
| England or Wales? | 0 | - | 4.94 | 45,985 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,255 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,984 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,106 |
| History of Spain | 0 | - | 4.23 | 21,166 |
| Languages of Spain | 0 | - | 4.36 | 23,450 |
| British to American Word Translation | 0 | - | 3.74 | 255,359 |
| British Foods by Description | 0 | - | 3.94 | 48,394 |
| British and American Word Differences | 0 | - | 2.63 | 46,932 |
| British Geography Quiz #2 | 0 | - | 4.30 | 28,228 |
| Bridges of London | 0 | - | 4.17 | 10,147 |
| British Sport Trivia | 0 | - | 4.39 | 20,533 |
| Famous Welsh People | 0 | - | 4.34 | 11,700 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,812 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,482 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,895 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,882 |
| History of Germany | 0 | - | 4.39 | 52,982 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,274 |
| Name that Greek Letter | 0 | - | 4.93 | 325,082 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,112 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,863 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,562 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,754 |
| Word Chain - Germany | 0 | - | 4.31 | 22,688 |
| The Trojan War | 0 | - | 4.83 | 40,008 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,029 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,618 |
| Roman Emperors | 0 | - | 4.95 | 121,280 |
| British Noble Ranks | 0 | - | 3.85 | 20,501 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,752 |
| Australian Capitals | 0 | - | 4.92 | 62,840 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,279 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,676 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,139 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,295 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,203 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,684 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,233 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,848 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,131 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,721 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,539 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,205 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,475 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,438 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,526 |
| Regions of France | 0 | - | 4.70 | 122,200 |
| France Immigration by Country | 0 | - | 4.70 | 76,958 |
| German Loan Words | 0 | - | 4.27 | 141,048 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,524 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,944 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,445 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,821 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,416 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,860 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,806 |
| Asia Map Quiz | 0 | - | 4.99 | 925,693 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,421 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,511 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,084 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,949 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,950 |
| European Physical Geography | 0 | - | 4.26 | 33,601 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,273 |
| Country Codes of Europe | 0 | - | 3.45 | 13,840 |
| The Only European Country ... | 0 | - | 4.91 | 219,232 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,632 |
| Geography of Russia | 0 | - | 4.57 | 21,607 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,139 |
| German History A-Z | 0 | - | 4.49 | 24,925 |
| Ancient Greek Words | 0 | - | 4.93 | 112,538 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,536 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,402 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,391 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,826 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,446 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,858 |
| Champions League Top 4 | 0 | - | 4.78 | 139,266 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,011 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,064 |
| African East Coast | 0 | - | 4.96 | 96,821 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,692 |
| Australia Map Quiz | 0 | - | 4.95 | 346,276 |
| United States Map Quiz | 0 | - | 4.98 | 4,172,153 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,349 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,336 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,597 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,303 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,069 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,662 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,304 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,691 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,668 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,906 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,970 |
| European Geography A-Z | 0 | - | 4.29 | 49,495 |
| Austria... or Australia? | 0 | - | 4.67 | 104,785 |
| Famous French People | 0 | - | 4.05 | 36,123 |
| Word Chain - France | 0 | - | 4.38 | 42,948 |
| Bundesliga Champions | 0 | - | 4.25 | 57,336 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 47,702 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,250 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,053 |
| Italian Foods | 0 | - | 4.30 | 73,307 |
| Countries Italy Declared War On | 0 | - | 4.70 | 46,178 |
| The Mafia Quiz | 0 | - | 4.46 | 23,442 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,993 |
| History of The Netherlands | 0 | - | 4.46 | 17,558 |
| Canary Islands | 0 | - | 4.62 | 17,544 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,094 |
| British Spellings | 0 | - | 4.06 | 99,613 |
| British Groups of Things | 0 | - | 4.26 | 83,027 |
| British Acronyms | 0 | - | 4.40 | 45,949 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,117 |
| British Monopoly Board | 0 | - | 4.52 | 41,276 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,157 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,530 |
| Countries of Africa | 0 | - | 5.00 | 2,561,706 |
| Australian States and Territories | 0 | - | 4.96 | 142,917 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,514 |
| Australia True or False | 0 | - | 4.87 | 57,168 |
| Flags of North and South America | 0 | - | 4.99 | 377,369 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,028 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,901 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,723 |
| South America Map Quiz | 0 | - | 5.00 | 1,557,152 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,769 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,180 |
| North America Map Quiz | 0 | - | 4.98 | 252,288 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,997 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,504 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,830 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,596 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,201 |
