| European Countries by First 2 Letters | 0 | - | 4.95 | 527,662 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,946 |
| History of Russia Quiz | 0 | - | 4.49 | 31,839 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,837 |
| Official European Union Languages | 0 | - | 4.97 | 237,621 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,291 |
| England or Wales? | 0 | - | 4.94 | 45,478 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,489 |
| Geography of Russia | 0 | - | 4.57 | 21,476 |
| Slavic Languages | 0 | - | 4.68 | 54,147 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,735 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,663 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,314 |
| Celtic Nations | 0 | - | 4.69 | 46,871 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,088 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,244 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,366 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,715 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,510 |
| Slavic Countries | 0 | - | 4.96 | 111,223 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,189 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,735 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,392 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,288 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,607 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,571 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,289 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,670 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,300 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,220 |
| Word Chain - Russia | 0 | - | 4.33 | 15,720 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,849 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,517 |
| States of Germany | 0 | - | 4.96 | 151,027 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,358 |
| Regions of Italy | 0 | - | 4.92 | 75,176 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,945 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,145 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,713 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,614 |
| Champions League Winners | 0 | - | 4.92 | 1,000,479 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,704 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,679 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,042 |
| Departments of France | 0 | - | 4.93 | 53,270 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,429 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,203 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,501 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,626 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,263 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,805 |
| Austria... or Australia? | 0 | - | 4.68 | 104,093 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,519 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,335 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,104 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,262 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,627 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,475 |
| Name that Greek Letter | 0 | - | 4.93 | 322,495 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,344 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,098 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,558 |
| Famous Russians | 0 | - | 4.16 | 23,769 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,859 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,735 |
| The Trojan War | 0 | - | 4.83 | 39,554 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,131 |
| History of Italy | 0 | - | 4.55 | 31,893 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,424 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,269 |
| Roman Emperors | 0 | - | 4.95 | 119,204 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,558 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,091 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,128 |
| Australian Capitals | 0 | - | 4.92 | 62,655 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,662 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,119 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,099 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,977 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,435 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,302 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,022 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,803 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,435 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,593 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,062 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,126 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,763 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,073 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,110 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,794 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,224 |
| Capitals of French Regions | 0 | - | 4.45 | 16,016 |
| Regions of France | 0 | - | 4.77 | 119,914 |
| France Immigration by Country | 0 | - | 4.72 | 76,173 |
| Famous Germans | 0 | - | 4.50 | 54,819 |
| German Groups of Things | 0 | - | 4.46 | 38,378 |
| Capitals of German States | 0 | - | 4.74 | 28,890 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,196 |
| Germany True or False? | 0 | - | 4.61 | 48,661 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,712 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,306 |
| Ancient Greek Words | 0 | - | 4.93 | 111,082 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,857 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,047 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,150 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,817 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,354 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,997 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,111 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,327 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,383 |
| European Physical Geography | 0 | - | 4.26 | 33,419 |
| History of Austria | 0 | - | 4.70 | 17,796 |
| Geography of the French Empire | 0 | - | 4.45 | 26,998 |
| The French Revolution | 0 | - | 4.46 | 23,857 |
| France Multiple Choice | 0 | - | 4.38 | 40,678 |
| History of France | 0 | - | 4.59 | 56,592 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,079 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,826 |
| The Vikings! | 0 | - | 4.46 | 28,283 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,814 |
| The Portuguese Empire | 0 | - | 4.58 | 12,027 |
| American to British Word Translation | 0 | - | 4.13 | 138,233 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,806 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,418 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,165 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,255 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,455 |
| Champions League Top 4 | 0 | - | 4.77 | 134,890 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,824 |
| Asia Map Quiz | 0 | - | 4.99 | 910,734 |
| Countries of Africa | 0 | - | 5.00 | 2,520,606 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,237 |
| African East Coast | 0 | - | 4.96 | 95,499 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,338 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,174 |
| Australia Map Quiz | 0 | - | 4.94 | 343,229 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,007 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,030 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,460 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,873 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,163 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,425 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,846 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,091 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,710 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,671 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,356 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,083 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,424 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,515 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,648 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,264 |
| European Geography A-Z | 0 | - | 4.29 | 49,104 |
| Country Codes of Europe | 0 | - | 3.46 | 13,675 |
| The Only European Country ... | 0 | - | 4.91 | 215,046 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,272 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 27,875 |
| Presidents of France | 0 | - | 4.25 | 23,977 |
| Word Chain - France | 0 | - | 4.38 | 42,670 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,865 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,837 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,800 |
| Italian Foods | 0 | - | 4.31 | 72,434 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,134 |
| The Mafia Quiz | 0 | - | 4.46 | 23,251 |
| History of The Netherlands | 0 | - | 4.46 | 17,354 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,991 |
| Canary Islands | 0 | - | 4.61 | 17,436 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,355 |
| British Spellings | 0 | - | 4.06 | 99,350 |
| British Groups of Things | 0 | - | 4.25 | 82,766 |
| British Acronyms | 0 | - | 4.39 | 45,698 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,992 |
| British Monopoly Board | 0 | - | 4.52 | 41,096 |
| Geography of Scotland | 0 | - | 4.63 | 21,543 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,164 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,004 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,634 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,706 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,182 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,866 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,655 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,818 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,720 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,176 |
| African Island Countries | 0 | - | 4.96 | 101,127 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,591 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,956 |
| Australian States and Territories | 0 | - | 4.96 | 141,338 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,125 |
| Australia True or False | 0 | - | 4.87 | 56,666 |
| Flags of North and South America | 0 | - | 4.99 | 370,008 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,391 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,501 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,785 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,345 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,645 |
