| European Countries by First 2 Letters | 0 | - | 4.95 | 531,899 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,998 |
| History of Russia Quiz | 0 | - | 4.47 | 31,987 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,837 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,593 |
| Official European Union Languages | 0 | - | 4.97 | 239,487 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,483 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,311 |
| Geography of Russia | 0 | - | 4.57 | 21,577 |
| Slavic Languages | 0 | - | 4.67 | 54,625 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,236 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,006 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,476 |
| Celtic Nations | 0 | - | 4.61 | 47,068 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,905 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,288 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,093 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,971 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,656 |
| Slavic Countries | 0 | - | 4.96 | 112,210 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,633 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,356 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,313 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,586 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,639 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,700 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,320 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,747 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,023 |
| Word Chain - Russia | 0 | - | 4.33 | 15,786 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,345 |
| States of Germany | 0 | - | 4.95 | 154,075 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,564 |
| Regions of Italy | 0 | - | 4.92 | 76,756 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,675 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,062 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,633 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,813 |
| Champions League Winners | 0 | - | 4.92 | 1,013,713 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,711 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,704 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,165 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,324 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,222 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,513 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,503 |
| Departments of France | 0 | - | 4.93 | 54,900 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,710 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,709 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,594 |
| England or Wales? | 0 | - | 4.94 | 45,905 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,702 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,815 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,021 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,346 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,077 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,664 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,349 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,865 |
| Name that Greek Letter | 0 | - | 4.93 | 324,719 |
| History of Italy | 0 | - | 4.55 | 32,115 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,225 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,786 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,390 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,605 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,446 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,665 |
| Famous Russians | 0 | - | 4.16 | 23,893 |
| Capitals of French Regions | 0 | - | 4.45 | 16,157 |
| Capitals of German States | 0 | - | 4.74 | 29,041 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,506 |
| The Trojan War | 0 | - | 4.83 | 39,940 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,719 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,503 |
| Roman Emperors | 0 | - | 4.95 | 120,937 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,141 |
| Australian Capitals | 0 | - | 4.92 | 62,809 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,698 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,079 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,072 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,085 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,744 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,085 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,865 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,383 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,597 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,296 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,459 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,114 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,411 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,374 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,216 |
| Regions of France | 0 | - | 4.70 | 121,797 |
| France Immigration by Country | 0 | - | 4.70 | 76,844 |
| Famous Germans | 0 | - | 4.50 | 55,699 |
| German Groups of Things | 0 | - | 4.47 | 38,603 |
| Germany True or False? | 0 | - | 4.61 | 48,973 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,360 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,107 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,237 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,647 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,383 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,669 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,271 |
| Asia Map Quiz | 0 | - | 4.99 | 923,332 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,358 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,306 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,517 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,848 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,356 |
| European Physical Geography | 0 | - | 4.26 | 33,577 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,791 |
| Country Codes of Europe | 0 | - | 3.43 | 13,791 |
| The Only European Country ... | 0 | - | 4.91 | 218,457 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,208 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,082 |
| History of Austria | 0 | - | 4.70 | 17,959 |
| Presidents of France | 0 | - | 4.25 | 24,306 |
| Geography of the French Empire | 0 | - | 4.45 | 27,198 |
| The French Revolution | 0 | - | 4.47 | 24,119 |
| France Multiple Choice | 0 | - | 4.39 | 40,814 |
| History of France | 0 | - | 4.61 | 57,490 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,546 |
| Ancient Greek Words | 0 | - | 4.93 | 112,284 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,423 |
| The Vikings! | 0 | - | 4.46 | 28,395 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,320 |
| The Portuguese Empire | 0 | - | 4.58 | 12,096 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,098 |
| American to British Word Translation | 0 | - | 4.14 | 139,559 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,028 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,284 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,774 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,938 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,594 |
| Champions League Top 4 | 0 | - | 4.77 | 138,367 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,714 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,655 |
| African East Coast | 0 | - | 4.96 | 96,595 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,436 |
| Australia Map Quiz | 0 | - | 4.95 | 345,847 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,257 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,797 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,816 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,119 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,923 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,630 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,318 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,954 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,366 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,420 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,833 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,711 |
| European Geography A-Z | 0 | - | 4.29 | 49,442 |
| Austria... or Australia? | 0 | - | 4.68 | 104,679 |
| Famous French People | 0 | - | 4.07 | 36,018 |
| Word Chain - France | 0 | - | 4.38 | 42,905 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,183 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,010 |
| Italian Foods | 0 | - | 4.30 | 73,157 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,569 |
| The Mafia Quiz | 0 | - | 4.46 | 23,413 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,164 |
| History of The Netherlands | 0 | - | 4.46 | 17,530 |
| Canary Islands | 0 | - | 4.62 | 17,514 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,981 |
| British Spellings | 0 | - | 4.06 | 99,568 |
| British Groups of Things | 0 | - | 4.25 | 82,977 |
| British Acronyms | 0 | - | 4.40 | 45,904 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,088 |
| British Monopoly Board | 0 | - | 4.52 | 41,243 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,059 |
| Geography of Scotland | 0 | - | 4.63 | 21,709 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,384 |
| Countries of Africa | 0 | - | 5.00 | 2,553,822 |
| Australian States and Territories | 0 | - | 4.96 | 142,660 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,453 |
| Australia True or False | 0 | - | 4.87 | 57,082 |
| Flags of North and South America | 0 | - | 4.99 | 375,997 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,878 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,661 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,444 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,335 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,718 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,247 |
| North America Map Quiz | 0 | - | 4.98 | 250,947 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,931 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,320 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,338 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,475 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,103 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,320 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,995 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,318 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,863 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,318 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,628 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,777 |
| Seas of Europe | 0 | - | 4.37 | 84,850 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,123 |
