| European Countries by First 2 Letters | 0 | - | 4.95 | 531,595 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,533 |
| Official European Union Languages | 0 | - | 4.97 | 239,372 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,400 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,053 |
| Celtic Nations | 0 | - | 4.61 | 47,054 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,204 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,988 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,463 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,862 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,054 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,743 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,600 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,323 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,679 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,867 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,799 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,507 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,572 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 88,140 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,660 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,736 |
| States of Germany | 0 | - | 4.95 | 153,896 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,500 |
| Regions of Italy | 0 | - | 4.92 | 76,616 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,629 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,951 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,575 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,233 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,992 |
| Champions League Winners | 0 | - | 4.92 | 1,012,637 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,696 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,697 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,131 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,209 |
| Slavic Languages | 0 | - | 4.68 | 54,590 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,701 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,583 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,986 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,064 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,318 |
| Departments of France | 0 | - | 4.93 | 54,810 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,691 |
| England or Wales? | 0 | - | 4.94 | 45,879 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,543 |
| Australian Capitals | 0 | - | 4.92 | 62,799 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,354 |
| Country Codes of Europe | 0 | - | 3.43 | 13,781 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,599 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,758 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,400 |
| History of Russia Quiz | 0 | - | 4.47 | 31,979 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,827 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,000 |
| Capitals of French Regions | 0 | - | 4.45 | 16,150 |
| Capitals of German States | 0 | - | 4.74 | 29,032 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,476 |
| History of Italy | 0 | - | 4.55 | 32,104 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,168 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,772 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,370 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,611 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,566 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 120,932 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,131 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,935 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,608 |
| European Geography By Letter - M | 0 | - | 4.69 | 131,949 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,792 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,319 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,539 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,222 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,441 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,092 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,394 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,361 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,157 |
| Regions of France | 0 | - | 4.70 | 121,673 |
| France Immigration by Country | 0 | - | 4.70 | 76,815 |
| Famous Germans | 0 | - | 4.50 | 55,646 |
| German Groups of Things | 0 | - | 4.47 | 38,585 |
| Germany True or False? | 0 | - | 4.61 | 48,955 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,298 |
| The Trojan War | 0 | - | 4.83 | 39,920 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,446 |
| Name that Greek Letter | 0 | - | 4.93 | 324,596 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,627 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,027 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,448 |
| Roman Emperors | 0 | - | 4.95 | 120,803 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,610 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,375 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,625 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,943 |
| Asia Map Quiz | 0 | - | 4.99 | 922,646 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,490 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,194 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,345 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,818 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,192 |
| European Physical Geography | 0 | - | 4.26 | 33,570 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,642 |
| The Only European Country ... | 0 | - | 4.91 | 218,227 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,088 |
| Geography of Russia | 0 | - | 4.57 | 21,572 |
| History of Austria | 0 | - | 4.70 | 17,946 |
| Presidents of France | 0 | - | 4.25 | 24,289 |
| Geography of the French Empire | 0 | - | 4.45 | 27,191 |
| The French Revolution | 0 | - | 4.47 | 24,105 |
| France Multiple Choice | 0 | - | 4.39 | 40,805 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,536 |
| The Vikings! | 0 | - | 4.46 | 28,387 |
| The Portuguese Empire | 0 | - | 4.58 | 12,093 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,092 |
| American to British Word Translation | 0 | - | 4.14 | 139,514 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,009 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,656 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,573 |
| African East Coast | 0 | - | 4.96 | 96,517 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,391 |
| Australia Map Quiz | 0 | - | 4.95 | 345,694 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,650 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,068 |
| History of France | 0 | - | 4.61 | 57,442 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,829 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,301 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,249 |
| Champions League Top 4 | 0 | - | 4.77 | 138,077 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,059 |
| Countries of Africa | 0 | - | 5.00 | 2,551,841 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,181 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,716 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,022 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,834 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,536 |
| European Geography By Letter - I | 0 | - | 4.09 | 96,234 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,882 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,299 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,376 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,822 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,666 |
| European Geography A-Z | 0 | - | 4.29 | 49,426 |
| Famous French People | 0 | - | 4.07 | 35,979 |
| Word Chain - France | 0 | - | 4.38 | 42,895 |
| Ancient Greek Words | 0 | - | 4.93 | 112,198 |
| Italian Foods | 0 | - | 4.30 | 73,102 |
| The Mafia Quiz | 0 | - | 4.46 | 23,404 |
| History of The Netherlands | 0 | - | 4.46 | 17,521 |
| Canary Islands | 0 | - | 4.62 | 17,508 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,942 |
| British Spellings | 0 | - | 4.06 | 99,547 |
| British Groups of Things | 0 | - | 4.25 | 82,966 |
| British Acronyms | 0 | - | 4.40 | 45,897 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,082 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,051 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,764 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,744 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,519 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,896 |
| Australian States and Territories | 0 | - | 4.96 | 142,559 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,431 |
| Australia Country Quiz | 0 | - | 4.43 | 69,759 |
| Australia True or False | 0 | - | 4.87 | 57,053 |
| Flags of North and South America | 0 | - | 4.99 | 375,651 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,848 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,610 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,366 |
| South America Map Quiz | 0 | - | 5.00 | 1,553,820 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,698 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,490 |
| North America Map Quiz | 0 | - | 4.98 | 250,518 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,912 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,989 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,952 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,442 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,062 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,082 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,244 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,245 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,803 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,132 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,573 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,023 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,898 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,607 |
| Slavic Countries | 0 | - | 4.96 | 112,145 |
| Austria... or Australia? | 0 | - | 4.68 | 104,639 |
| Geography of Germany | 0 | - | 4.35 | 17,240 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,163 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,997 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,549 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,912 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,398 |
| History of Spain | 0 | - | 4.23 | 21,143 |
| Languages of Spain | 0 | - | 4.36 | 23,390 |
| British to American Word Translation | 0 | - | 3.74 | 255,263 |
| British Foods by Description | 0 | - | 3.94 | 48,362 |
| British and American Word Differences | 0 | - | 2.63 | 46,915 |
| Counties of England | 0 | - | 4.97 | 800,952 |
| British Monopoly Board | 0 | - | 4.52 | 41,231 |
