| European Countries by First 2 Letters | 0 | - | 4.95 | 529,233 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,073 |
| Official European Union Languages | 0 | - | 4.97 | 238,352 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,751 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,913 |
| Celtic Nations | 0 | - | 4.69 | 46,925 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,948 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,801 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,378 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,328 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,261 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,274 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,329 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,950 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,458 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,375 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,685 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,054 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,027 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,127 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,880 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,877 |
| States of Germany | 0 | - | 4.96 | 152,298 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,973 |
| Regions of Italy | 0 | - | 4.92 | 75,766 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,066 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,831 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,122 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,883 |
| Champions League Winners | 0 | - | 4.92 | 1,005,695 |
| 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 | 141,622 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,800 |
| Slavic Languages | 0 | - | 4.68 | 54,324 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,592 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,447 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,002 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,615 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,946 |
| Departments of France | 0 | - | 4.93 | 54,006 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,534 |
| England or Wales? | 0 | - | 4.94 | 45,651 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,166 |
| Australian Capitals | 0 | - | 4.92 | 62,714 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,702 |
| Country Codes of Europe | 0 | - | 3.43 | 13,704 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,988 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,403 |
| History of Russia Quiz | 0 | - | 4.47 | 31,905 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,713 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,749 |
| 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 | 23,310 |
| History of Italy | 0 | - | 4.55 | 31,960 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,728 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,642 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,206 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,604 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,582 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,754 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,764 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,481 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,196 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,254 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,322 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,334 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,650 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,546 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,872 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,248 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,247 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,913 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,200 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,217 |
| European Geography By Letter - S #1 | 0 | - | 4.54 | 100,447 |
| Regions of France | 0 | - | 4.75 | 120,628 |
| France Immigration by Country | 0 | - | 4.70 | 76,470 |
| Famous Germans | 0 | - | 4.50 | 55,255 |
| German Groups of Things | 0 | - | 4.46 | 38,467 |
| Germany True or False? | 0 | - | 4.61 | 48,773 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,960 |
| The Trojan War | 0 | - | 4.83 | 39,691 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,858 |
| Name that Greek Letter | 0 | - | 4.93 | 323,304 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,728 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,419 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,484 |
| Roman Emperors | 0 | - | 4.95 | 119,869 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,305 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,250 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,172 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,695 |
| Asia Map Quiz | 0 | - | 4.99 | 915,863 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,745 |
| African East Coast | 0 | - | 4.96 | 95,963 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,789 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,597 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,046 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,625 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,819 |
| European Physical Geography | 0 | - | 4.26 | 33,493 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,086 |
| The Only European Country ... | 0 | - | 4.91 | 216,371 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,981 |
| 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 | 40,728 |
| The Vikings! | 0 | - | 4.46 | 28,337 |
| The Portuguese Empire | 0 | - | 4.58 | 12,059 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,021 |
| American to British Word Translation | 0 | - | 4.14 | 138,929 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,880 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,858 |
| Countries of Africa | 0 | - | 5.00 | 2,534,000 |
| Australia Map Quiz | 0 | - | 4.95 | 344,207 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,254 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,936 |
| History of France | 0 | - | 4.59 | 56,930 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,424 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,098 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,632 |
| Champions League Top 4 | 0 | - | 4.77 | 136,201 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,096 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,586 |
| United States Map Quiz | 0 | - | 4.98 | 4,156,415 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,351 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,669 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,841 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,489 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,326 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,976 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,582 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,819 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,651 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,073 |
| European Geography A-Z | 0 | - | 4.29 | 49,237 |
| Famous French People | 0 | - | 4.06 | 35,419 |
| Word Chain - France | 0 | - | 4.38 | 42,766 |
| Ancient Greek Words | 0 | - | 4.93 | 111,501 |
| Italian Foods | 0 | - | 4.30 | 72,735 |
| 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 | - | 4.70 | 29,664 |
| British Spellings | 0 | - | 4.06 | 99,433 |
| British Groups of Things | 0 | - | 4.25 | 82,858 |
| 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 | 31,745 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,643 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,975 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,597 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,944 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,464 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,858 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,513 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,148 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,199 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,374 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,884 |
| African Island Countries | 0 | - | 4.96 | 101,541 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,280 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,210 |
| Australian States and Territories | 0 | - | 4.96 | 141,840 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,271 |
| Australia Country Quiz | 0 | - | 4.43 | 69,567 |
| Australia True or False | 0 | - | 4.87 | 56,821 |
| Flags of North and South America | 0 | - | 4.99 | 372,634 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,571 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,165 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,639 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,823 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,022,099 |
| North America Map Quiz | 0 | - | 4.98 | 248,212 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,698 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,074 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,814 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,101 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,848 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,242,408 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,433 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,574 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,115 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,473 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,075 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,012 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,175 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,999 |
| Slavic Countries | 0 | - | 4.96 | 111,585 |
| Austria... or Australia? | 0 | - | 4.68 | 104,297 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,469 |
| Geography of Germany | 0 | - | 4.35 | 17,175 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,968 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,901 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,295 |
