| European Countries by First 2 Letters | 0 | - | 4.95 | 529,698 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,449 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,702 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,178 |
| Official European Union Languages | 0 | - | 4.97 | 238,582 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,909 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,332 |
| Slavic Languages | 0 | - | 4.68 | 54,383 |
| Lithuania Country Quiz | 0 | - | 4.61 | 31,635 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,009 |
| History of Russia Quiz | 0 | - | 4.47 | 31,923 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,738 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,852 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,399 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,699 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,050 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,344 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,245 |
| Slavic Countries | 0 | - | 4.96 | 111,711 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,371 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,037 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,293 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,389 |
| Celtic Nations | 0 | - | 4.69 | 46,957 |
| Champions League Winners | 0 | - | 4.92 | 1,007,248 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,179 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,669 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,031 |
| Geography of Russia | 0 | - | 4.57 | 21,538 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,939 |
| States of Germany | 0 | - | 4.95 | 152,714 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,089 |
| Regions of Italy | 0 | - | 4.92 | 75,951 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,221 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,038 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,246 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,711 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,508 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,399 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,952 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,208 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,369 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,355 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,049 |
| Departments of France | 0 | - | 4.93 | 54,189 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,559 |
| England or Wales? | 0 | - | 4.94 | 45,716 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,456 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,608 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,660 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,727 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,055 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,477 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,871 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,256 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,883 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,823 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,782 |
| The Trojan War | 0 | - | 4.83 | 39,741 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,729 |
| Name that Greek Letter | 0 | - | 4.93 | 323,580 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,915 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,626 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,555 |
| Roman Emperors | 0 | - | 4.95 | 120,115 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,482 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,132 |
| Famous Russians | 0 | - | 4.16 | 23,843 |
| Word Chain - Russia | 0 | - | 4.33 | 15,761 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,430 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,092 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,039 |
| History of Italy | 0 | - | 4.55 | 31,981 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,814 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,671 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,243 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,284 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,386 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,583 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,102 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,730 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,600 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,765 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,615 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,920 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,768 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,059 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,506 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,417 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,290 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,959 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,239 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,245 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,658 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,467 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,023 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,027 |
| Capitals of French Regions | 0 | - | 4.45 | 16,081 |
| Regions of France | 0 | - | 4.72 | 120,887 |
| France Immigration by Country | 0 | - | 4.70 | 76,548 |
| Famous Germans | 0 | - | 4.50 | 55,312 |
| German Groups of Things | 0 | - | 4.46 | 38,484 |
| Capitals of German States | 0 | - | 4.74 | 28,964 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,349 |
| Germany True or False? | 0 | - | 4.61 | 48,824 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,049 |
| Ancient Greek Words | 0 | - | 4.93 | 111,656 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,531 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,166 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,395 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,281 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,282 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,678 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,395 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,784 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,244 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,496 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,627 |
| Australian Capitals | 0 | - | 4.92 | 62,730 |
| European Physical Geography | 0 | - | 4.26 | 33,519 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,233 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,973 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,736 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,456 |
| Romania Country Quiz | 0 | - | 4.63 | 53,804 |
| History of Austria | 0 | - | 4.70 | 17,866 |
| Geography of the French Empire | 0 | - | 4.45 | 27,072 |
| The French Revolution | 0 | - | 4.47 | 23,957 |
| France Multiple Choice | 0 | - | 4.39 | 40,746 |
| History of France | 0 | - | 4.59 | 57,022 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,067 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,296 |
| The Vikings! | 0 | - | 4.46 | 28,349 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,148 |
| The Portuguese Empire | 0 | - | 4.58 | 12,067 |
| American to British Word Translation | 0 | - | 4.14 | 139,112 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,907 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,054 |
| Champions League Top 4 | 0 | - | 4.77 | 136,602 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,485 |
| Asia Map Quiz | 0 | - | 4.99 | 917,265 |
| Countries of Africa | 0 | - | 5.00 | 2,538,461 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,880 |
| African East Coast | 0 | - | 4.96 | 96,104 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,952 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,744 |
| Australia Map Quiz | 0 | - | 4.95 | 344,709 |
| United States Map Quiz | 0 | - | 4.98 | 4,159,128 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,366 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,667 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,133 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,581 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,846 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,009 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,127 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,801 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,605 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,244 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,797 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,969 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,689 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,245 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,339 |
| European Geography A-Z | 0 | - | 4.29 | 49,282 |
| Country Codes of Europe | 0 | - | 3.43 | 13,738 |
| The Only European Country ... | 0 | - | 4.91 | 216,782 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,218 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,534 |
| Seas of Europe | 0 | - | 4.37 | 84,666 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,183 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,737 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,309 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,733 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,906 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,737 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,369 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,629 |
| Austria... or Australia? | 0 | - | 4.68 | 104,374 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,066 |
| Famous French People | 0 | - | 4.07 | 35,622 |
| Presidents of France | 0 | - | 4.25 | 24,154 |
| France A-Z | 0 | - | 4.16 | 38,213 |
| Word Chain - France | 0 | - | 4.38 | 42,787 |
| History of Germany | 0 | - | 4.39 | 52,834 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,012 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,920 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,710 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,672 |
| Italian Foods | 0 | - | 4.30 | 72,807 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,344 |
| The Mafia Quiz | 0 | - | 4.46 | 23,329 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,759 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,946 |
| Roman Names for Places | 0 | - | 4.62 | 58,310 |
| Byzantine History | 0 | - | 4.91 | 28,875 |
| Byzantine Emperors | 0 | - | 4.92 | 14,204 |
| History of The Netherlands | 0 | - | 4.46 | 17,439 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,050 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,619 |
| Canary Islands | 0 | - | 4.62 | 17,483 |
