| Germany Multiple Choice | 0 | - | 4.84 | 54,232 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,812 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,700 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,166 |
| Capitals of German States | 0 | - | 4.74 | 28,908 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,237 |
| States of Germany | 0 | - | 4.96 | 151,431 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,707 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,640 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,908 |
| Official European Union Languages | 0 | - | 4.97 | 237,877 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,440 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,927 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,447 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,544 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,388 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,800 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,336 |
| Celtic Nations | 0 | - | 4.69 | 46,884 |
| Capitals of French Regions | 0 | - | 4.45 | 16,028 |
| History of Italy | 0 | - | 4.55 | 31,917 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,545 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,592 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,127 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,161 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,614 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,894 |
| Geography of Germany | 0 | - | 4.35 | 17,146 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,242 |
| Famous Germans | 0 | - | 4.50 | 54,895 |
| German Groups of Things | 0 | - | 4.46 | 38,404 |
| Germany True or False? | 0 | - | 4.61 | 48,685 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,668 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,700 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,341 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,758 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,493 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,763 |
| History of Austria | 0 | - | 4.70 | 17,818 |
| Geography of the French Empire | 0 | - | 4.45 | 27,011 |
| The French Revolution | 0 | - | 4.46 | 23,881 |
| France Multiple Choice | 0 | - | 4.38 | 40,689 |
| Regions of Italy | 0 | - | 4.92 | 75,357 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,184 |
| The Vikings! | 0 | - | 4.46 | 28,304 |
| The Portuguese Empire | 0 | - | 4.58 | 12,038 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,377 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,813 |
| American to British Word Translation | 0 | - | 4.13 | 138,520 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,831 |
| Champions League Winners | 0 | - | 4.92 | 1,002,061 |
| Presidents of France | 0 | - | 4.25 | 24,004 |
| History of France | 0 | - | 4.59 | 56,704 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,000 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,529 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,636 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,380 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,063 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,151 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,958 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,336 |
| Slavic Languages | 0 | - | 4.68 | 54,206 |
| Departments of France | 0 | - | 4.93 | 53,501 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,476 |
| England or Wales? | 0 | - | 4.94 | 45,533 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,461 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,609 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,223 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,673 |
| History of Spain | 0 | - | 4.23 | 21,055 |
| Languages of Spain | 0 | - | 4.36 | 23,257 |
| British to American Word Translation | 0 | - | 3.74 | 254,940 |
| British Foods by Description | 0 | - | 3.94 | 48,301 |
| British and American Word Differences | 0 | - | 2.63 | 46,842 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,561 |
| Bridges of London | 0 | - | 4.17 | 10,086 |
| British Sport Trivia | 0 | - | 4.37 | 20,421 |
| Famous Welsh People | 0 | - | 4.29 | 11,228 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,401 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,711 |
| History of Russia Quiz | 0 | - | 4.49 | 31,861 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,665 |
| History of Germany | 0 | - | 4.39 | 52,745 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,262 |
| Name that Greek Letter | 0 | - | 4.93 | 322,800 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,761 |
| Europe Map Quiz | 0 | - | 5.00 | 4,749,785 |
| Word Chain - Germany | 0 | - | 4.31 | 22,542 |
| The Trojan War | 0 | - | 4.83 | 39,607 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,330 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,351 |
| Roman Emperors | 0 | - | 4.95 | 119,478 |
| British Noble Ranks | 0 | - | 3.85 | 20,410 |
| Africa Map Quiz | 0 | - | 5.00 | 2,112,411 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,299 |
| Australian Capitals | 0 | - | 4.92 | 62,676 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,744 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,168 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,140 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,029 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,491 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,405 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,068 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,842 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,470 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,668 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,166 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,821 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,105 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,144 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,829 |
| Regions of France | 0 | - | 4.78 | 120,164 |
| France Immigration by Country | 0 | - | 4.70 | 76,299 |
| German Loan Words | 0 | - | 4.27 | 135,666 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,785 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,935 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,988 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,122 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,175 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,940 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,445,022 |
| Asia Map Quiz | 0 | - | 4.99 | 912,290 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,409 |
| African East Coast | 0 | - | 4.96 | 95,645 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,474 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,324 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,367 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,516 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,190 |
| European Physical Geography | 0 | - | 4.26 | 33,441 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,528 |
| Country Codes of Europe | 0 | - | 3.43 | 13,688 |
| The Only European Country ... | 0 | - | 4.91 | 215,523 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,507 |
| Geography of Russia | 0 | - | 4.57 | 21,495 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,882 |
| German History A-Z | 0 | - | 4.49 | 24,540 |
| Ancient Greek Words | 0 | - | 4.93 | 111,205 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,908 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,955 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,483 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,512 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,291 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,282 |
| Champions League Top 4 | 0 | - | 4.77 | 135,301 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,366 |
| Countries of Africa | 0 | - | 5.00 | 2,525,077 |
| Australia Map Quiz | 0 | - | 4.94 | 343,514 |
| United States Map Quiz | 0 | - | 4.98 | 4,150,243 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,582 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,471 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,889 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,147 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,764 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,706 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,391 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,111 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,455 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,564 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,678 |
| European Geography A-Z | 0 | - | 4.29 | 49,145 |
| Austria... or Australia? | 0 | - | 4.68 | 104,158 |
| Word Chain - France | 0 | - | 4.38 | 42,707 |
| Bundesliga Champions | 0 | - | 4.25 | 56,168 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 45,352 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,892 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,857 |
| Italian Foods | 0 | - | 4.31 | 72,541 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,580 |
| History of The Netherlands | 0 | - | 4.46 | 17,379 |
| Canary Islands | 0 | - | 4.61 | 17,450 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,506 |
| British Spellings | 0 | - | 4.06 | 99,371 |
| British Groups of Things | 0 | - | 4.25 | 82,803 |
| British Acronyms | 0 | - | 4.39 | 45,725 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,004 |
| British Monopoly Board | 0 | - | 4.52 | 41,124 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,932 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,764 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,839 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,405 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,014 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,823 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,931 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,920 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,388 |
| African Island Countries | 0 | - | 4.96 | 101,274 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,810 |
| Australian States and Territories | 0 | - | 4.96 | 141,486 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,179 |
| Australia True or False | 0 | - | 4.87 | 56,712 |
| Flags of North and South America | 0 | - | 4.99 | 370,978 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,455 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,644 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,062 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,807 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,655 |
| North America Map Quiz | 0 | - | 4.98 | 247,070 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,591 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,442 |
