| European Countries by First 2 Letters | 0 | - | 4.95 | 530,481 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,947 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,479 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,309 |
| Official European Union Languages | 0 | - | 4.97 | 238,883 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,108 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,950 |
| Slavic Languages | 0 | - | 4.67 | 54,460 |
| Lithuania Country Quiz | 0 | - | 4.61 | 31,675 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,095 |
| History of Russia Quiz | 0 | - | 4.47 | 31,947 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,771 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,905 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,522 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,177 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,841 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,538 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,378 |
| Slavic Countries | 0 | - | 4.96 | 111,869 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,457 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,182 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,998 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,423 |
| Celtic Nations | 0 | - | 4.69 | 46,990 |
| Champions League Winners | 0 | - | 4.92 | 1,009,587 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,365 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 85,502 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,264 |
| Geography of Russia | 0 | - | 4.57 | 21,553 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,077 |
| States of Germany | 0 | - | 4.95 | 153,122 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,265 |
| Regions of Italy | 0 | - | 4.92 | 76,215 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,403 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,343 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,387 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,742 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,568 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,851 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,325 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,579 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,456 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,410 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,079 |
| Departments of France | 0 | - | 4.93 | 54,420 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,610 |
| England or Wales? | 0 | - | 4.94 | 45,790 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,950 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,638 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,673 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,856 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,545 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,614 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,966 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,406 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,921 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,878 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,848 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,351 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,180 |
| The Trojan War | 0 | - | 4.83 | 39,794 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,719 |
| Name that Greek Letter | 0 | - | 4.93 | 324,131 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,212 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,658 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,641 |
| Roman Emperors | 0 | - | 4.95 | 120,367 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,513 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,322 |
| Famous Russians | 0 | - | 4.16 | 23,861 |
| Word Chain - Russia | 0 | - | 4.33 | 15,770 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,525 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,130 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,773 |
| History of Italy | 0 | - | 4.55 | 32,049 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,934 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,717 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,294 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,561 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,849 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,254 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,628 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,192 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,911 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,216 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,853 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,139 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,946 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,231 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,770 |
| Europe Map Quiz | 0 | - | 5.00 | 4,770,032 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,345 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,005 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,292 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,288 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,833 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,539 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,072 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,119 |
| Capitals of French Regions | 0 | - | 4.45 | 16,103 |
| Regions of France | 0 | - | 4.72 | 121,185 |
| France Immigration by Country | 0 | - | 4.70 | 76,670 |
| Famous Germans | 0 | - | 4.50 | 55,514 |
| German Groups of Things | 0 | - | 4.46 | 38,520 |
| Capitals of German States | 0 | - | 4.74 | 28,988 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,394 |
| Germany True or False? | 0 | - | 4.61 | 48,882 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,133 |
| Ancient Greek Words | 0 | - | 4.93 | 111,887 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,749 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,267 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,481 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,336 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,423 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,713 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,942 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,052 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,655 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,394 |
| Oceania Map Quiz | 0 | - | 4.98 | 645,719 |
| Australian Capitals | 0 | - | 4.92 | 62,751 |
| European Physical Geography | 0 | - | 4.26 | 33,539 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,277 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,007 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,791 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,535 |
| Romania Country Quiz | 0 | - | 4.63 | 53,891 |
| History of Austria | 0 | - | 4.70 | 17,900 |
| Geography of the French Empire | 0 | - | 4.45 | 27,153 |
| The French Revolution | 0 | - | 4.47 | 24,056 |
| France Multiple Choice | 0 | - | 4.39 | 40,769 |
| History of France | 0 | - | 4.59 | 57,255 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,659 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,886 |
| The Vikings! | 0 | - | 4.46 | 28,368 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,206 |
| The Portuguese Empire | 0 | - | 4.58 | 12,081 |
| American to British Word Translation | 0 | - | 4.14 | 139,284 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,942 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,149 |
| Champions League Top 4 | 0 | - | 4.77 | 137,221 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,598 |
| Asia Map Quiz | 0 | - | 4.99 | 919,258 |
| Countries of Africa | 0 | - | 5.00 | 2,544,108 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,076 |
| African East Coast | 0 | - | 4.96 | 96,264 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,116 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,867 |
| Australia Map Quiz | 0 | - | 4.95 | 345,041 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,206 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,747 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,734 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,511 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,986 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,168 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,530 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,385 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,075 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,828 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,462 |
| European Geography By Letter - O | 0 | - | 4.29 | 62,951 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,099 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,742 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,387 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,642 |
| European Geography A-Z | 0 | - | 4.29 | 49,356 |
| Country Codes of Europe | 0 | - | 3.43 | 13,747 |
| The Only European Country ... | 0 | - | 4.91 | 217,330 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,535 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,641 |
| Seas of Europe | 0 | - | 4.37 | 84,717 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,288 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,778 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,324 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,757 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,945 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,763 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,391 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,643 |
| Austria... or Australia? | 0 | - | 4.68 | 104,494 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,084 |
| Famous French People | 0 | - | 4.07 | 35,831 |
| Presidents of France | 0 | - | 4.25 | 24,201 |
| France A-Z | 0 | - | 4.16 | 38,261 |
| Word Chain - France | 0 | - | 4.38 | 42,833 |
| History of Germany | 0 | - | 4.39 | 52,891 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,069 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,945 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,868 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,705 |
| Italian Foods | 0 | - | 4.30 | 72,922 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,405 |
| The Mafia Quiz | 0 | - | 4.46 | 23,368 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,785 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,987 |
| Roman Names for Places | 0 | - | 4.62 | 58,392 |
| Byzantine History | 0 | - | 4.91 | 28,913 |
| Byzantine Emperors | 0 | - | 4.92 | 14,353 |
| History of The Netherlands | 0 | - | 4.46 | 17,480 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,065 |
