| European Countries by First 2 Letters | 0 | - | 4.95 | 532,170 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,646 |
| Official European Union Languages | 0 | - | 4.97 | 239,613 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,544 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,536 |
| Celtic Nations | 0 | - | 4.61 | 47,081 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,268 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,029 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,488 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,952 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,448 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,352 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,669 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,392 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,722 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,882 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,823 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,625 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,690 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,414 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,858 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,241 |
| States of Germany | 0 | - | 4.95 | 154,260 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,622 |
| Regions of Italy | 0 | - | 4.92 | 76,918 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,736 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,163 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,677 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,497 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,217 |
| Champions League Winners | 0 | - | 4.92 | 1,014,748 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,724 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,715 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,220 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 118,800 |
| Slavic Languages | 0 | - | 4.68 | 54,659 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,723 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,607 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,481 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,691 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,671 |
| Departments of France | 0 | - | 4.93 | 54,972 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,721 |
| England or Wales? | 0 | - | 4.94 | 45,927 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,866 |
| Australian Capitals | 0 | - | 4.92 | 62,819 |
| Europe Map Quiz | 0 | - | 5.00 | 4,784,067 |
| Country Codes of Europe | 0 | - | 3.43 | 13,801 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,739 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,861 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,490 |
| History of Russia Quiz | 0 | - | 4.47 | 31,995 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,850 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,039 |
| Capitals of French Regions | 0 | - | 4.45 | 16,163 |
| Capitals of German States | 0 | - | 4.74 | 29,056 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,522 |
| History of Italy | 0 | - | 4.55 | 32,130 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,277 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,800 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,408 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,630 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,749 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,120 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,353 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,124 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,777 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,156 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,897 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,414 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,628 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,350 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,477 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,138 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,424 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,394 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,247 |
| Regions of France | 0 | - | 4.70 | 121,904 |
| France Immigration by Country | 0 | - | 4.70 | 76,878 |
| Famous Germans | 0 | - | 4.50 | 55,743 |
| German Groups of Things | 0 | - | 4.47 | 38,615 |
| Germany True or False? | 0 | - | 4.61 | 48,991 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,415 |
| The Trojan War | 0 | - | 4.83 | 39,951 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,250 |
| Name that Greek Letter | 0 | - | 4.93 | 324,825 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,814 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,295 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,543 |
| Roman Emperors | 0 | - | 4.95 | 121,065 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,689 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,392 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,722 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,609 |
| Asia Map Quiz | 0 | - | 4.99 | 924,139 |
| Africa Map Quiz | 0 | - | 5.00 | 2,127,328 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,369 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,698 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,879 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,530 |
| European Physical Geography | 0 | - | 4.26 | 33,586 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,920 |
| The Only European Country ... | 0 | - | 4.91 | 218,666 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,350 |
| Geography of Russia | 0 | - | 4.57 | 21,588 |
| History of Austria | 0 | - | 4.70 | 17,966 |
| Presidents of France | 0 | - | 4.25 | 24,316 |
| Geography of the French Empire | 0 | - | 4.45 | 27,202 |
| The French Revolution | 0 | - | 4.47 | 24,130 |
| France Multiple Choice | 0 | - | 4.39 | 40,827 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,551 |
| The Vikings! | 0 | - | 4.46 | 28,398 |
| The Portuguese Empire | 0 | - | 4.58 | 12,097 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,110 |
| American to British Word Translation | 0 | - | 4.14 | 139,613 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,039 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,826 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,730 |
| African East Coast | 0 | - | 4.96 | 96,665 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,502 |
| Australia Map Quiz | 0 | - | 4.95 | 345,991 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,986 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,102 |
| History of France | 0 | - | 4.61 | 57,540 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,373 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,351 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,317 |
| Champions League Top 4 | 0 | - | 4.78 | 138,664 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,759 |
| Countries of Africa | 0 | - | 5.00 | 2,556,110 |
| United States Map Quiz | 0 | - | 4.98 | 4,169,591 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,838 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,153 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,943 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,655 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,343 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,971 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,389 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,440 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,854 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,728 |
| European Geography A-Z | 0 | - | 4.29 | 49,454 |
| Famous French People | 0 | - | 4.07 | 36,049 |
| Word Chain - France | 0 | - | 4.38 | 42,916 |
| Ancient Greek Words | 0 | - | 4.93 | 112,349 |
| Italian Foods | 0 | - | 4.30 | 73,199 |
| The Mafia Quiz | 0 | - | 4.46 | 23,425 |
| History of The Netherlands | 0 | - | 4.46 | 17,539 |
| Canary Islands | 0 | - | 4.62 | 17,515 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,015 |
| British Spellings | 0 | - | 4.06 | 99,583 |
| British Groups of Things | 0 | - | 4.26 | 82,989 |
| British Acronyms | 0 | - | 4.40 | 45,918 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,096 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,079 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,786 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,108 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,687 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,965 |
| Australian States and Territories | 0 | - | 4.96 | 142,755 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,474 |
| Australia Country Quiz | 0 | - | 4.43 | 69,803 |
| Australia True or False | 0 | - | 4.87 | 57,109 |
| Flags of North and South America | 0 | - | 4.99 | 376,385 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,914 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,714 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,528 |
| South America Map Quiz | 0 | - | 5.00 | 1,555,437 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,738 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,030,153 |
| North America Map Quiz | 0 | - | 4.98 | 251,286 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,949 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,693 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,108 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,507 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,134 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,255,810 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,581 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,393 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,945 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,494 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,693 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,221 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,060 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,705 |
| Slavic Countries | 0 | - | 4.96 | 112,282 |
| Austria... or Australia? | 0 | - | 4.68 | 104,727 |
| Geography of Germany | 0 | - | 4.35 | 17,262 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,205 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,024 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,607 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,446 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,470 |
| History of Spain | 0 | - | 4.23 | 21,155 |
| Languages of Spain | 0 | - | 4.36 | 23,420 |
| British to American Word Translation | 0 | - | 3.74 | 255,306 |
| British Foods by Description | 0 | - | 3.94 | 48,378 |
| British and American Word Differences | 0 | - | 2.63 | 46,922 |
| Counties of England | 0 | - | 4.97 | 802,062 |
| British Monopoly Board | 0 | - | 4.52 | 41,253 |
