| Germany Multiple Choice | 0 | - | 4.84 | 54,509 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,234 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,930 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,819 |
| Capitals of German States | 0 | - | 4.74 | 28,997 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,416 |
| States of Germany | 0 | - | 4.95 | 153,407 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,326 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,765 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,371 |
| Official European Union Languages | 0 | - | 4.97 | 239,024 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,196 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,375 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,677 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,523 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,134 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,438 |
| Celtic Nations | 0 | - | 4.69 | 47,006 |
| Capitals of French Regions | 0 | - | 4.45 | 16,117 |
| History of Italy | 0 | - | 4.55 | 32,069 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,017 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,734 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,311 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,670 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,581 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,567 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,512 |
| Geography of Germany | 0 | - | 4.35 | 17,213 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,528 |
| Famous Germans | 0 | - | 4.50 | 55,556 |
| German Groups of Things | 0 | - | 4.46 | 38,536 |
| Germany True or False? | 0 | - | 4.61 | 48,910 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,028 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,440 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,602 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,307 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,398 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,195 |
| History of Austria | 0 | - | 4.70 | 17,918 |
| Geography of the French Empire | 0 | - | 4.45 | 27,162 |
| The French Revolution | 0 | - | 4.47 | 24,072 |
| France Multiple Choice | 0 | - | 4.39 | 40,778 |
| Regions of Italy | 0 | - | 4.92 | 76,346 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,475 |
| The Vikings! | 0 | - | 4.46 | 28,373 |
| The Portuguese Empire | 0 | - | 4.58 | 12,086 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,574 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,458 |
| American to British Word Translation | 0 | - | 4.14 | 139,366 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,966 |
| Champions League Winners | 0 | - | 4.92 | 1,010,519 |
| Presidents of France | 0 | - | 4.25 | 24,220 |
| History of France | 0 | - | 4.61 | 57,318 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,071 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,660 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,676 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,934 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,750 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,168 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,573 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,842 |
| Slavic Languages | 0 | - | 4.68 | 54,498 |
| Departments of France | 0 | - | 4.93 | 54,557 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,627 |
| England or Wales? | 0 | - | 4.94 | 45,820 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,141 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,676 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,890 |
| History of Spain | 0 | - | 4.23 | 21,124 |
| Languages of Spain | 0 | - | 4.36 | 23,360 |
| British to American Word Translation | 0 | - | 3.74 | 255,195 |
| British Foods by Description | 0 | - | 3.94 | 48,347 |
| British and American Word Differences | 0 | - | 2.63 | 46,903 |
| British Geography Quiz #2 | 0 | - | 4.29 | 28,021 |
| Bridges of London | 0 | - | 4.17 | 10,123 |
| British Sport Trivia | 0 | - | 4.37 | 20,488 |
| Famous Welsh People | 0 | - | 4.31 | 11,579 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,815 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,685 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,408 |
| History of Russia Quiz | 0 | - | 4.47 | 31,962 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,788 |
| History of Germany | 0 | - | 4.39 | 52,909 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,407 |
| Name that Greek Letter | 0 | - | 4.93 | 324,270 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,982 |
| Europe Map Quiz | 0 | - | 5.00 | 4,773,427 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,569 |
| Word Chain - Germany | 0 | - | 4.31 | 22,633 |
| The Trojan War | 0 | - | 4.83 | 39,823 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,336 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,701 |
| Roman Emperors | 0 | - | 4.95 | 120,465 |
| British Noble Ranks | 0 | - | 3.85 | 20,470 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,021 |
| Australian Capitals | 0 | - | 4.92 | 62,769 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,050 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,453 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,845 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,397 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,062 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,404 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,248 |
| European Geography By Letter - R | 0 | - | 4.42 | 94,058 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,322 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,894 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,376 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,035 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,332 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,312 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,932 |
| Regions of France | 0 | - | 4.70 | 121,358 |
| France Immigration by Country | 0 | - | 4.70 | 76,706 |
| German Loan Words | 0 | - | 4.28 | 139,398 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,180 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,113 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,881 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,528 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,358 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,487 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,967 |
| Asia Map Quiz | 0 | - | 4.99 | 920,313 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,582 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,014 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,929 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,760 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,714 |
| European Physical Geography | 0 | - | 4.26 | 33,545 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,820 |
| Country Codes of Europe | 0 | - | 3.43 | 13,762 |
| The Only European Country ... | 0 | - | 4.91 | 217,603 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,712 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,329 |
| Geography of Russia | 0 | - | 4.57 | 21,557 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,029 |
| German History A-Z | 0 | - | 4.49 | 24,672 |
| Ancient Greek Words | 0 | - | 4.93 | 111,990 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,297 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,230 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,190 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,736 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,234 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,160 |
| Champions League Top 4 | 0 | - | 4.77 | 137,455 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,395 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,162 |
| African East Coast | 0 | - | 4.96 | 96,351 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,206 |
| Australia Map Quiz | 0 | - | 4.95 | 345,341 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,395 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,208 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,311 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,661 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,511 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,195 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,936 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,571 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,044 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,179 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,766 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,470 |
| European Geography A-Z | 0 | - | 4.29 | 49,377 |
| Austria... or Australia? | 0 | - | 4.68 | 104,535 |
| Famous French People | 0 | - | 4.07 | 35,897 |
| Word Chain - France | 0 | - | 4.38 | 42,858 |
| Bundesliga Champions | 0 | - | 4.25 | 56,874 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 45,777 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,097 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,955 |
| Italian Foods | 0 | - | 4.30 | 72,995 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,444 |
| The Mafia Quiz | 0 | - | 4.46 | 23,385 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,267 |
| History of The Netherlands | 0 | - | 4.46 | 17,493 |
| Canary Islands | 0 | - | 4.62 | 17,498 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,846 |
| British Spellings | 0 | - | 4.06 | 99,518 |
| British Groups of Things | 0 | - | 4.25 | 82,919 |
| British Acronyms | 0 | - | 4.40 | 45,863 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,059 |
| British Monopoly Board | 0 | - | 4.52 | 41,204 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,977 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,133 |
| Countries of Africa | 0 | - | 5.00 | 2,546,728 |
| Australian States and Territories | 0 | - | 4.96 | 142,326 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,378 |
| Australia True or False | 0 | - | 4.87 | 56,978 |
| Flags of North and South America | 0 | - | 4.99 | 374,645 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,739 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,442 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,175 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,222 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,653 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,502 |
| North America Map Quiz | 0 | - | 4.98 | 249,647 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,824 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,998 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,043 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,336 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,989 |
