| European Countries by First 2 Letters | 0 | - | 4.95 | 529,239 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,074 |
| Official European Union Languages | 0 | - | 4.97 | 238,357 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,757 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,925 |
| Celtic Nations | 0 | - | 4.69 | 46,926 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,948 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,803 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,378 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,329 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,264 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,318 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,329 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,955 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,462 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,393 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,685 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,056 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,028 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,139 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,882 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,889 |
| States of Germany | 0 | - | 4.96 | 152,316 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,974 |
| Regions of Italy | 0 | - | 4.92 | 75,770 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,070 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,838 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,123 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,927 |
| Champions League Winners | 0 | - | 4.92 | 1,005,724 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,588 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,650 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,633 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,806 |
| Slavic Languages | 0 | - | 4.68 | 54,325 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,593 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,447 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,008 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,624 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,954 |
| Departments of France | 0 | - | 4.93 | 54,007 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,535 |
| England or Wales? | 0 | - | 4.94 | 45,654 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,171 |
| Australian Capitals | 0 | - | 4.92 | 62,714 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,833 |
| Country Codes of Europe | 0 | - | 3.43 | 13,705 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,994 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,404 |
| History of Russia Quiz | 0 | - | 4.47 | 31,905 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,713 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,751 |
| Capitals of French Regions | 0 | - | 4.45 | 16,057 |
| Capitals of German States | 0 | - | 4.74 | 28,945 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,311 |
| History of Italy | 0 | - | 4.55 | 31,960 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,730 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,643 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,209 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,654 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,610 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,772 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 113,264 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,493 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,215 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,263 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,333 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,336 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,656 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,552 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,878 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,255 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,247 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,914 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,200 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,218 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,451 |
| Regions of France | 0 | - | 4.75 | 120,632 |
| France Immigration by Country | 0 | - | 4.70 | 76,471 |
| Famous Germans | 0 | - | 4.50 | 55,257 |
| German Groups of Things | 0 | - | 4.46 | 38,468 |
| Germany True or False? | 0 | - | 4.61 | 48,774 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,961 |
| The Trojan War | 0 | - | 4.83 | 39,691 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,874 |
| Name that Greek Letter | 0 | - | 4.93 | 323,309 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,731 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,420 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,485 |
| Roman Emperors | 0 | - | 4.95 | 119,878 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,307 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,250 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,177 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,713 |
| Asia Map Quiz | 0 | - | 4.99 | 915,894 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,751 |
| African East Coast | 0 | - | 4.96 | 95,968 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,794 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,601 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,059 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,627 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,832 |
| European Physical Geography | 0 | - | 4.26 | 33,493 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,088 |
| The Only European Country ... | 0 | - | 4.91 | 216,384 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,992 |
| Geography of Russia | 0 | - | 4.57 | 21,522 |
| History of Austria | 0 | - | 4.70 | 17,854 |
| Presidents of France | 0 | - | 4.25 | 24,081 |
| Geography of the French Empire | 0 | - | 4.45 | 27,046 |
| The French Revolution | 0 | - | 4.46 | 23,924 |
| France Multiple Choice | 0 | - | 4.39 | 40,729 |
| The Vikings! | 0 | - | 4.46 | 28,337 |
| The Portuguese Empire | 0 | - | 4.58 | 12,060 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,021 |
| American to British Word Translation | 0 | - | 4.14 | 138,935 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,882 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,863 |
| Countries of Africa | 0 | - | 5.00 | 2,534,156 |
| Australia Map Quiz | 0 | - | 4.95 | 344,223 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,260 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,936 |
| History of France | 0 | - | 4.59 | 56,932 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,438 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,100 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,658 |
| Champions League Top 4 | 0 | - | 4.77 | 136,209 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,126 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,589 |
| United States Map Quiz | 0 | - | 4.98 | 4,156,489 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,364 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,682 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,849 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,500 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,335 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,981 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,586 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,821 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,653 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,076 |
| European Geography A-Z | 0 | - | 4.29 | 49,238 |
| Famous French People | 0 | - | 4.06 | 35,431 |
| Word Chain - France | 0 | - | 4.38 | 42,766 |
| Ancient Greek Words | 0 | - | 4.93 | 111,502 |
| Italian Foods | 0 | - | 4.30 | 72,736 |
| The Mafia Quiz | 0 | - | 4.46 | 23,314 |
| History of The Netherlands | 0 | - | 4.46 | 17,428 |
| Canary Islands | 0 | - | 4.62 | 17,473 |
| Switzerland Immigration by Country | 0 | - | 4.68 | 29,668 |
| British Spellings | 0 | - | 4.06 | 99,434 |
| British Groups of Things | 0 | - | 4.25 | 82,859 |
| British Acronyms | 0 | - | 4.40 | 45,783 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,032 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,747 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,643 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,993 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,600 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,945 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,485 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,860 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,516 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,154 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,202 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,383 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,890 |
| African Island Countries | 0 | - | 4.96 | 101,545 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,288 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,211 |
| Australian States and Territories | 0 | - | 4.96 | 141,881 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,274 |
| Australia Country Quiz | 0 | - | 4.43 | 69,567 |
| Australia True or False | 0 | - | 4.87 | 56,825 |
| Flags of North and South America | 0 | - | 4.99 | 372,652 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,575 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,169 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,645 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,850 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,022,162 |
| North America Map Quiz | 0 | - | 4.98 | 248,220 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,698 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,099 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,844 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,103 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,851 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,242,489 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,484 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,580 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,118 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,479 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,075 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,016 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,177 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,014 |
| Slavic Countries | 0 | - | 4.96 | 111,589 |
| Austria... or Australia? | 0 | - | 4.68 | 104,303 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,469 |
| Geography of Germany | 0 | - | 4.35 | 17,176 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,970 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,901 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,298 |
