| European Countries by First 2 Letters | 0 | - | 4.95 | 526,882 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,599 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,724 |
| Official European Union Languages | 0 | - | 4.97 | 237,246 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,083 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,827 |
| Slavic Languages | 0 | - | 4.68 | 54,065 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,613 |
| History of Russia Quiz | 0 | - | 4.49 | 31,813 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,606 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,616 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,963 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,388 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,708 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,471 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,357 |
| Slavic Countries | 0 | - | 4.96 | 111,031 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,115 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,635 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,120 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,262 |
| Celtic Nations | 0 | - | 4.69 | 46,839 |
| Lithuania Country Quiz | 0 | - | 4.60 | 31,420 |
| Champions League Winners | 0 | - | 4.92 | 998,284 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,509 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,382 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,501 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,026 |
| Geography of Russia | 0 | - | 4.57 | 21,450 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,339 |
| States of Germany | 0 | - | 4.96 | 150,555 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,177 |
| Regions of Italy | 0 | - | 4.92 | 74,939 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,967 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,631 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,502 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,579 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,220 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,023 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,634 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,546 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,973 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,113 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,832 |
| Departments of France | 0 | - | 4.93 | 53,032 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,404 |
| England or Wales? | 0 | - | 4.94 | 45,404 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,812 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,482 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,613 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,112 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,424 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,970 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,466 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,808 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,673 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,600 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,567 |
| The Trojan War | 0 | - | 4.83 | 39,488 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,201 |
| Name that Greek Letter | 0 | - | 4.94 | 322,049 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,844 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,470 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,155 |
| Roman Emperors | 0 | - | 4.95 | 118,767 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,285 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,338 |
| Famous Russians | 0 | - | 4.16 | 23,750 |
| Word Chain - Russia | 0 | - | 4.33 | 15,699 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,010 |
| Estonia Country Quiz | 0 | - | 4.60 | 30,917 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,331 |
| History of Italy | 0 | - | 4.55 | 31,860 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,310 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,519 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,025 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,809 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,569 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,040 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,004 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,884 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,352 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,132 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,957 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,725 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,100 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,452 |
| Europe Map Quiz | 0 | - | 5.00 | 4,737,996 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,044 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,683 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,005 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,039 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,701 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,256 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,705 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 37,845 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 89,656 |
| Capitals of French Regions | 0 | - | 4.45 | 16,002 |
| Regions of France | 0 | - | 4.78 | 119,582 |
| France Immigration by Country | 0 | - | 4.72 | 76,057 |
| Famous Germans | 0 | - | 4.50 | 54,720 |
| German Groups of Things | 0 | - | 4.46 | 38,343 |
| Capitals of German States | 0 | - | 4.74 | 28,864 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,146 |
| Germany True or False? | 0 | - | 4.61 | 48,590 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,593 |
| Ancient Greek Words | 0 | - | 4.92 | 110,897 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,700 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,714 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,932 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,099 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,126 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,422 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,548 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,555 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,747 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,914 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,729 |
| Australian Capitals | 0 | - | 4.92 | 62,612 |
| European Physical Geography | 0 | - | 4.26 | 33,395 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 41,940 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,815 |
| Ukraine Country Quiz | 0 | - | 4.42 | 47,407 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,121 |
| Romania Country Quiz | 0 | - | 4.63 | 53,470 |
| History of Austria | 0 | - | 4.70 | 17,777 |
| Geography of the French Empire | 0 | - | 4.45 | 26,963 |
| The French Revolution | 0 | - | 4.46 | 23,826 |
| France Multiple Choice | 0 | - | 4.38 | 40,657 |
| History of France | 0 | - | 4.59 | 56,344 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,405 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,386 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,376 |
| The Vikings! | 0 | - | 4.46 | 28,264 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,757 |
| The Portuguese Empire | 0 | - | 4.54 | 12,006 |
| American to British Word Translation | 0 | - | 4.13 | 137,096 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,768 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,338 |
| Champions League Top 4 | 0 | - | 4.77 | 134,295 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,414 |
| Asia Map Quiz | 0 | - | 4.99 | 908,675 |
| Countries of Africa | 0 | - | 5.00 | 2,513,704 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,986 |
| African East Coast | 0 | - | 4.96 | 95,251 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,135 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,005 |
| Australia Map Quiz | 0 | - | 4.94 | 342,838 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,947 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,580 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,362 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,444 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,746 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,347 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,782 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,022 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,635 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,604 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,288 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,019 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,362 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,450 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,586 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,928 |
| European Geography A-Z | 0 | - | 4.28 | 49,051 |
| Country Codes of Europe | 0 | - | 3.46 | 13,662 |
| The Only European Country ... | 0 | - | 4.91 | 214,448 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,923 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,225 |
| Seas of Europe | 0 | - | 4.37 | 83,957 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,538 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,250 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,489 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,714 |
| Montenegro Country Quiz | 0 | - | 4.60 | 23,578 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,255 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,568 |
| Austria... or Australia? | 0 | - | 4.68 | 103,981 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,980 |
| Presidents of France | 0 | - | 4.25 | 23,937 |
| France A-Z | 0 | - | 4.16 | 38,090 |
| Word Chain - France | 0 | - | 4.38 | 42,618 |
| History of Germany | 0 | - | 4.39 | 52,668 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,821 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,803 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,058 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,488 |
| Italian Foods | 0 | - | 4.31 | 72,308 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,053 |
| The Mafia Quiz | 0 | - | 4.46 | 23,222 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,581 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,736 |
| Roman Names for Places | 0 | - | 4.62 | 57,955 |
| Byzantine History | 0 | - | 4.91 | 28,661 |
| History of The Netherlands | 0 | - | 4.46 | 17,341 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,975 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,498 |
| Canary Islands | 0 | - | 4.61 | 17,420 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 66,433 |
| Switzerland A-Z | 0 | - | 4.45 | 25,538 |
