| European Countries by First 2 Letters | 0 | - | 4.95 | 527,382 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,802 |
| Official European Union Languages | 0 | - | 4.97 | 237,502 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,225 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,236 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,711 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,036 |
| Name that Greek Letter | 0 | - | 4.93 | 322,332 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,647 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,496 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,072 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,302 |
| Celtic Nations | 0 | - | 4.69 | 46,861 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,151 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,050 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,049 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,156 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,163 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,708 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,066 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,945 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,846 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,030 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,580 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,513 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,268 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,611 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,220 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,987 |
| States of Germany | 0 | - | 4.96 | 150,883 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,285 |
| Regions of Italy | 0 | - | 4.92 | 75,060 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,047 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,023 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,647 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,793 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,605 |
| Champions League Winners | 0 | - | 4.92 | 999,868 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,850 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,513 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,500 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,903 |
| Departments of France | 0 | - | 4.93 | 53,164 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,419 |
| England or Wales? | 0 | - | 4.94 | 45,455 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,090 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,689 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,494 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,622 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,214 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,700 |
| Slavic Languages | 0 | - | 4.68 | 54,121 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,509 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,319 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,068 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,330 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,612 |
| Languages of Spain | 0 | - | 4.36 | 23,218 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,558 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,761 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,210 |
| History of Russia Quiz | 0 | - | 4.49 | 31,831 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,624 |
| The Trojan War | 0 | - | 4.83 | 39,536 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,036 |
| History of Italy | 0 | - | 4.55 | 31,880 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,386 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,228 |
| Roman Emperors | 0 | - | 4.95 | 119,047 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,545 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,070 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,690 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,011 |
| Australian Capitals | 0 | - | 4.92 | 62,642 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,636 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,093 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,071 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,943 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,414 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,251 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,002 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,781 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,402 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,556 |
| Europe Map Quiz | 0 | - | 5.00 | 4,742,464 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,098 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,742 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,043 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,090 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,772 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.74 | 65,501 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,772 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,140 |
| Countries that have Won the Most Eurovisions | 0 | - | 4.56 | 101,439 |
| Capitals of French Regions | 0 | - | 4.45 | 16,012 |
| Regions of France | 0 | - | 4.78 | 119,770 |
| France Immigration by Country | 0 | - | 4.72 | 76,138 |
| Famous Germans | 0 | - | 4.50 | 54,796 |
| German Groups of Things | 0 | - | 4.46 | 38,368 |
| Capitals of German States | 0 | - | 4.74 | 28,884 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,178 |
| Germany True or False? | 0 | - | 4.61 | 48,632 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,674 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,896 |
| Ancient Greek Words | 0 | - | 4.93 | 111,019 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,803 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,006 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,128 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,765 |
| Imagine Lyrics | 0 | - | 4.53 | 43,124 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,341 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,797 |
| European Physical Geography | 0 | - | 4.26 | 33,413 |
| Geography of Russia | 0 | - | 4.57 | 21,463 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,836 |
| History of Austria | 0 | - | 4.70 | 17,792 |
| Geography of the French Empire | 0 | - | 4.45 | 26,983 |
| The French Revolution | 0 | - | 4.46 | 23,848 |
| France Multiple Choice | 0 | - | 4.38 | 40,673 |
| History of France | 0 | - | 4.59 | 56,504 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,418 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,814 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,785 |
| The Vikings! | 0 | - | 4.46 | 28,278 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,798 |
| The Portuguese Empire | 0 | - | 4.58 | 12,020 |
| American to British Word Translation | 0 | - | 4.13 | 138,004 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,386 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,441 |
| Beatles Lyrics First Names | 0 | - | 4.38 | 34,550 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,436 |
| Elton John Quiz | 0 | - | 4.48 | 18,432 |
| Champions League Top 4 | 0 | - | 4.77 | 134,726 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,373 |
| Asia Map Quiz | 0 | - | 4.99 | 909,997 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,741 |
| Countries of Africa | 0 | - | 5.00 | 2,517,939 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,165 |
| African East Coast | 0 | - | 4.96 | 95,421 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,285 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,114 |
| Australia Map Quiz | 0 | - | 4.94 | 343,082 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,932 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,701 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,875 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,420 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,723 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,037 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,396 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,825 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,066 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,691 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,651 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,337 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,056 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,412 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,492 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,633 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,158 |
| European Geography A-Z | 0 | - | 4.28 | 49,091 |
| Country Codes of Europe | 0 | - | 3.46 | 13,670 |
| The Only European Country ... | 0 | - | 4.91 | 214,862 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,148 |
| Austria... or Australia? | 0 | - | 4.68 | 104,053 |
| Presidents of France | 0 | - | 4.25 | 23,958 |
| Word Chain - France | 0 | - | 4.38 | 42,661 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,853 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,825 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,646 |
| Italian Foods | 0 | - | 4.31 | 72,412 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,111 |
| The Mafia Quiz | 0 | - | 4.46 | 23,238 |
| History of The Netherlands | 0 | - | 4.46 | 17,351 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,984 |
| Canary Islands | 0 | - | 4.61 | 17,428 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,329 |
| British Spellings | 0 | - | 4.07 | 99,337 |
| British Groups of Things | 0 | - | 4.25 | 82,752 |
| British Acronyms | 0 | - | 4.39 | 45,686 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,986 |
| British Monopoly Board | 0 | - | 4.52 | 41,086 |
| Title in the Lyrics #2 - The Beatles | 0 | - | 4.56 | 93,477 |
| First Lines of Beatles Songs | 0 | - | 4.36 | 46,703 |
| Beatles Songs by Synopsis | 0 | - | 4.31 | 32,756 |
| Viva la Vida Lyrics | 0 | - | 4.37 | 49,662 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,073 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,653 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,660 |
| Countries by National Anthem | 0 | - | 4.93 | 71,095 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,177 |
| Officially Recognized Languages of India | 0 | - | 4.38 | 31,178 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,587 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,005 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,084 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,827 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,600 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,762 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,607 |
| African Island Countries | 0 | - | 4.96 | 101,072 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,284 |
