| European Countries by First 2 Letters | 0 | - | 4.95 | 527,069 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,752 |
| Official European Union Languages | 0 | - | 4.97 | 237,340 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,138 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,962 |
| Celtic Nations | 0 | - | 4.69 | 46,848 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,656 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,628 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,269 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,996 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,842 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,886 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,135 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,666 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,234 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,469 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,584 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,913 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,528 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,430 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,530 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,091 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,789 |
| States of Germany | 0 | - | 4.96 | 150,698 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,223 |
| Regions of Italy | 0 | - | 4.92 | 74,998 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,999 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,837 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,553 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,846 |
| Champions League Winners | 0 | - | 4.92 | 998,881 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,486 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,614 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,145 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,533 |
| Slavic Languages | 0 | - | 4.68 | 54,086 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,489 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,298 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,196 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,744 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,666 |
| Departments of France | 0 | - | 4.93 | 53,084 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,409 |
| England or Wales? | 0 | - | 4.94 | 45,425 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,905 |
| Australian Capitals | 0 | - | 4.92 | 62,618 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,853 |
| Country Codes of Europe | 0 | - | 3.46 | 13,665 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,410 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,011 |
| History of Russia Quiz | 0 | - | 4.49 | 31,822 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,612 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,577 |
| Capitals of French Regions | 0 | - | 4.45 | 16,009 |
| Capitals of German States | 0 | - | 4.74 | 28,870 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,157 |
| History of Italy | 0 | - | 4.55 | 31,866 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,336 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,524 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,045 |
| Africa Map Quiz | 0 | - | 5.00 | 2,107,837 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,120 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,590 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,055 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,021 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,900 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,371 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,164 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,968 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,743 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,116 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,483 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,063 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,704 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,018 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,058 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,719 |
| Regions of France | 0 | - | 4.78 | 119,662 |
| France Immigration by Country | 0 | - | 4.72 | 76,087 |
| Famous Germans | 0 | - | 4.50 | 54,752 |
| German Groups of Things | 0 | - | 4.46 | 38,353 |
| Germany True or False? | 0 | - | 4.61 | 48,608 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,624 |
| The Trojan War | 0 | - | 4.83 | 39,506 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,493 |
| Name that Greek Letter | 0 | - | 4.94 | 322,156 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,922 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,739 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,183 |
| Roman Emperors | 0 | - | 4.95 | 118,852 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,951 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,107 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,254 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,745 |
| Asia Map Quiz | 0 | - | 4.99 | 909,125 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,065 |
| African East Coast | 0 | - | 4.96 | 95,321 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,201 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,053 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,685 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,389 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,555 |
| European Physical Geography | 0 | - | 4.26 | 33,406 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,012 |
| The Only European Country ... | 0 | - | 4.91 | 214,618 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,008 |
| Geography of Russia | 0 | - | 4.57 | 21,455 |
| History of Austria | 0 | - | 4.70 | 17,780 |
| Presidents of France | 0 | - | 4.25 | 23,944 |
| Geography of the French Empire | 0 | - | 4.45 | 26,970 |
| The French Revolution | 0 | - | 4.46 | 23,835 |
| France Multiple Choice | 0 | - | 4.38 | 40,664 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,411 |
| The Vikings! | 0 | - | 4.46 | 28,269 |
| The Portuguese Empire | 0 | - | 4.58 | 12,008 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,978 |
| American to British Word Translation | 0 | - | 4.13 | 137,484 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,775 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,946 |
| Countries of Africa | 0 | - | 5.00 | 2,515,390 |
| Australia Map Quiz | 0 | - | 4.94 | 342,930 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,851 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,821 |
| History of France | 0 | - | 4.59 | 56,414 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,550 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,772 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,359 |
| Champions League Top 4 | 0 | - | 4.77 | 134,455 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,929 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,273 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,618 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,359 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,793 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,032 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,651 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,615 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,302 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,030 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,372 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,461 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,595 |
| European Geography A-Z | 0 | - | 4.28 | 49,070 |
| Word Chain - France | 0 | - | 4.38 | 42,634 |
| Ancient Greek Words | 0 | - | 4.93 | 110,949 |
| Italian Foods | 0 | - | 4.31 | 72,336 |
| The Mafia Quiz | 0 | - | 4.46 | 23,224 |
| History of The Netherlands | 0 | - | 4.46 | 17,348 |
| Canary Islands | 0 | - | 4.61 | 17,426 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,290 |
| British Spellings | 0 | - | 4.07 | 99,321 |
| British Groups of Things | 0 | - | 4.25 | 82,736 |
| British Acronyms | 0 | - | 4.39 | 45,668 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,979 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,431 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,648 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,700 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,552 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,298 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,961 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,769 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,519 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,694 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,485 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,932 |
| African Island Countries | 0 | - | 4.96 | 101,002 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,129 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,873 |
| Australian States and Territories | 0 | - | 4.96 | 141,178 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,085 |
| Australia Country Quiz | 0 | - | 4.43 | 69,374 |
| Australia True or False | 0 | - | 4.87 | 56,603 |
| Flags of North and South America | 0 | - | 4.99 | 368,998 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,298 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,379 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,596 |
| South America Map Quiz | 0 | - | 5.00 | 1,543,032 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,015,063 |
| North America Map Quiz | 0 | - | 4.98 | 245,790 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,468 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,060 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,064 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,785 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,604 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,231,303 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,926 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,968 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,547 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,963 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,643 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,006 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,538 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,381 |
| Slavic Countries | 0 | - | 4.96 | 111,074 |
| Austria... or Australia? | 0 | - | 4.68 | 104,009 |
| Geography of Germany | 0 | - | 4.35 | 17,118 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,829 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,808 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,076 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,537 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,737 |
