| European Countries by First 2 Letters | 0 | - | 4.95 | 533,140 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,985 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,524 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,878 |
| Official European Union Languages | 0 | - | 4.97 | 240,413 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,851 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,458 |
| Slavic Languages | 0 | - | 4.67 | 54,791 |
| Lithuania Country Quiz | 0 | - | 4.63 | 31,840 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,396 |
| History of Russia Quiz | 0 | - | 4.47 | 32,030 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,905 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,115 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,155 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,276 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,614 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,400 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,934 |
| Slavic Countries | 0 | - | 4.96 | 112,530 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,761 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,518 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,815 |
| Celtic Nations | 0 | - | 4.61 | 47,130 |
| Champions League Winners | 0 | - | 4.92 | 1,018,274 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,538 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,134 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,924 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,132 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,206 |
| Geography of Russia | 0 | - | 4.57 | 21,623 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,604 |
| States of Germany | 0 | - | 4.95 | 154,982 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,832 |
| Regions of Italy | 0 | - | 4.92 | 77,288 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,933 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,617 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,915 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,875 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,833 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,413 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,375 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,332 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,845 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,656 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,251 |
| Departments of France | 0 | - | 4.93 | 55,429 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,785 |
| England or Wales? | 0 | - | 4.94 | 46,065 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,523 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,805 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,742 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,471 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,280 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,075 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,362 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,120 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,097 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,070 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,299 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,824 |
| The Trojan War | 0 | - | 4.83 | 40,095 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,140 |
| Name that Greek Letter | 0 | - | 4.93 | 325,349 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,278 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,764 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,708 |
| Roman Emperors | 0 | - | 4.95 | 121,467 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,667 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,031 |
| Famous Russians | 0 | - | 4.16 | 23,929 |
| Word Chain - Russia | 0 | - | 4.33 | 15,807 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,918 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,313 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,571 |
| History of Italy | 0 | - | 4.55 | 32,187 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,540 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,857 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,472 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,390 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,815 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,333 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,854 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,324 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,850 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,322 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,917 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,190 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,816 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,172 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,583 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,252 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,523 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,476 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,588 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,628 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,795 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,229 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,414 |
| Capitals of French Regions | 0 | - | 4.45 | 16,210 |
| Regions of France | 0 | - | 4.70 | 122,445 |
| France Immigration by Country | 0 | - | 4.70 | 77,022 |
| Famous Germans | 0 | - | 4.50 | 55,883 |
| German Groups of Things | 0 | - | 4.47 | 38,678 |
| Capitals of German States | 0 | - | 4.74 | 29,099 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,598 |
| Germany True or False? | 0 | - | 4.61 | 49,078 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,600 |
| Ancient Greek Words | 0 | - | 4.93 | 112,698 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,561 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,632 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,958 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,488 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,977 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,858 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,804 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 293,021 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 281,067 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,698 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,541 |
| Australian Capitals | 0 | - | 4.92 | 62,864 |
| European Physical Geography | 0 | - | 4.26 | 33,619 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,519 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,170 |
| Ukraine Country Quiz | 0 | - | 4.43 | 48,054 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,847 |
| Romania Country Quiz | 0 | - | 4.63 | 54,220 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| Geography of the French Empire | 0 | - | 4.45 | 27,236 |
| The French Revolution | 0 | - | 4.47 | 24,169 |
| France Multiple Choice | 0 | - | 4.39 | 40,877 |
| History of France | 0 | - | 4.61 | 57,746 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,580 |
| Figures from Greek Mythology | 0 | - | 4.92 | 193,235 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,529 |
| The Vikings! | 0 | - | 4.46 | 28,425 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,447 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| American to British Word Translation | 0 | - | 4.14 | 139,850 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,096 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,479 |
| Champions League Top 4 | 0 | - | 4.78 | 139,641 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,574 |
| Asia Map Quiz | 0 | - | 4.99 | 926,979 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,076 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,623 |
| Australia Map Quiz | 0 | - | 4.95 | 346,552 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,915 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,403 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,999 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,304 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,636 |
| European Geography By Letter - E | 0 | - | 4.23 | 117,537 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,708 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,385 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,181 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,733 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,382 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,749 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,706 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,952 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 52,009 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,550 |
| European Geography A-Z | 0 | - | 4.29 | 49,529 |
| Country Codes of Europe | 0 | - | 3.45 | 13,856 |
| The Only European Country ... | 0 | - | 4.91 | 219,670 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,872 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,931 |
| Seas of Europe | 0 | - | 4.37 | 84,975 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,506 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,964 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,373 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,919 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 31,123 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,898 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,494 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,683 |
| Austria... or Australia? | 0 | - | 4.67 | 104,859 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,163 |
| Famous French People | 0 | - | 4.05 | 36,170 |
| Presidents of France | 0 | - | 4.25 | 24,377 |
| France A-Z | 0 | - | 4.16 | 38,366 |
| Word Chain - France | 0 | - | 4.38 | 42,966 |
| History of Germany | 0 | - | 4.39 | 53,006 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,288 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,077 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,504 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,898 |
| Italian Foods | 0 | - | 4.30 | 73,408 |
| Countries Italy Declared War On | 0 | - | 4.74 | 48,354 |
| The Mafia Quiz | 0 | - | 4.46 | 23,454 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,401 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,270 |
| Roman Names for Places | 0 | - | 4.62 | 58,796 |
| Byzantine History | 0 | - | 4.91 | 29,057 |
| Byzantine Emperors | 0 | - | 4.93 | 14,665 |
| History of The Netherlands | 0 | - | 4.46 | 17,574 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,138 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,388 |
| Canary Islands | 0 | - | 4.62 | 17,550 |
| Switzerland A-Z | 0 | - | 4.45 | 25,796 |
