| European Countries by First 2 Letters | 0 | - | 4.95 | 532,663 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,636 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,954 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,777 |
| Official European Union Languages | 0 | - | 4.97 | 239,881 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,708 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,072 |
| Slavic Languages | 0 | - | 4.67 | 54,715 |
| Lithuania Country Quiz | 0 | - | 4.63 | 31,807 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,338 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,882 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,065 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,059 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,900 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,049 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,240 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,826 |
| Slavic Countries | 0 | - | 4.96 | 112,420 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,709 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,475 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,984 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,513 |
| Celtic Nations | 0 | - | 4.61 | 47,106 |
| Champions League Winners | 0 | - | 4.92 | 1,016,706 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,027 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,808 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,948 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,027 |
| Geography of Russia | 0 | - | 4.57 | 21,607 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,504 |
| States of Germany | 0 | - | 4.95 | 154,656 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,731 |
| Regions of Italy | 0 | - | 4.92 | 77,144 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,828 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,412 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,797 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,844 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,767 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,012 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,017 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,025 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,777 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,605 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,220 |
| Departments of France | 0 | - | 4.93 | 55,235 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,753 |
| England or Wales? | 0 | - | 4.94 | 45,985 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,253 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,755 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,724 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,365 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,733 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,982 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,298 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,033 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,063 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,041 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,106 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,730 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,580 |
| The Trojan War | 0 | - | 4.83 | 40,008 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,265 |
| Name that Greek Letter | 0 | - | 4.93 | 325,080 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,026 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,747 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,618 |
| Roman Emperors | 0 | - | 4.95 | 121,280 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,639 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,892 |
| Famous Russians | 0 | - | 4.16 | 23,917 |
| Word Chain - Russia | 0 | - | 4.33 | 15,798 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,834 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,281 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,936 |
| History of Italy | 0 | - | 4.55 | 32,160 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,412 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,830 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,435 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,278 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,674 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,136 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,265 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,197 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,677 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,227 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,844 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,128 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,718 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,754 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,538 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,203 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,473 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,438 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,523 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,562 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,753 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,204 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,354 |
| Capitals of French Regions | 0 | - | 4.45 | 16,185 |
| Regions of France | 0 | - | 4.70 | 122,178 |
| France Immigration by Country | 0 | - | 4.70 | 76,957 |
| Famous Germans | 0 | - | 4.50 | 55,812 |
| German Groups of Things | 0 | - | 4.47 | 38,645 |
| Capitals of German States | 0 | - | 4.74 | 29,076 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,553 |
| Germany True or False? | 0 | - | 4.61 | 49,032 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,514 |
| Ancient Greek Words | 0 | - | 4.93 | 112,533 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,436 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,534 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,815 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,416 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,860 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,826 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,440 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,854 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,809 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,478 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,733 |
| Australian Capitals | 0 | - | 4.92 | 62,839 |
| European Physical Geography | 0 | - | 4.26 | 33,601 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,476 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,139 |
| Ukraine Country Quiz | 0 | - | 4.43 | 48,003 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,798 |
| Romania Country Quiz | 0 | - | 4.63 | 54,156 |
| History of Austria | 0 | - | 4.70 | 17,978 |
| Geography of the French Empire | 0 | - | 4.45 | 27,221 |
| The French Revolution | 0 | - | 4.47 | 24,153 |
| France Multiple Choice | 0 | - | 4.39 | 40,857 |
| History of France | 0 | - | 4.61 | 57,656 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,564 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,965 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,989 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,400 |
| The Portuguese Empire | 0 | - | 4.58 | 12,113 |
| American to British Word Translation | 0 | - | 4.14 | 139,739 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,069 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,391 |
| Champions League Top 4 | 0 | - | 4.78 | 139,258 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,788 |
| Asia Map Quiz | 0 | - | 4.99 | 925,672 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,381 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,510 |
| Australia Map Quiz | 0 | - | 4.95 | 346,268 |
| United States Map Quiz | 0 | - | 4.98 | 4,172,100 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,077 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,948 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,942 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,340 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,334 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,594 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,299 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,067 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,659 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,301 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,687 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,665 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,906 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,969 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,269 |
| European Geography A-Z | 0 | - | 4.29 | 49,492 |
| Country Codes of Europe | 0 | - | 3.45 | 13,839 |
| The Only European Country ... | 0 | - | 4.91 | 219,223 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,628 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,871 |
| Seas of Europe | 0 | - | 4.37 | 84,937 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,295 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,931 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,366 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,884 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 31,083 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,876 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,473 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,673 |
| Austria... or Australia? | 0 | - | 4.67 | 104,783 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,149 |
| Famous French People | 0 | - | 4.05 | 36,123 |
| Presidents of France | 0 | - | 4.25 | 24,346 |
| France A-Z | 0 | - | 4.16 | 38,346 |
| Word Chain - France | 0 | - | 4.38 | 42,947 |
| History of Germany | 0 | - | 4.39 | 52,981 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,250 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,053 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,348 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,861 |
| Italian Foods | 0 | - | 4.30 | 73,305 |
| Countries Italy Declared War On | 0 | - | 4.70 | 46,087 |
| The Mafia Quiz | 0 | - | 4.46 | 23,442 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,325 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,222 |
| Roman Names for Places | 0 | - | 4.62 | 58,732 |
| Byzantine History | 0 | - | 4.91 | 29,030 |
| Byzantine Emperors | 0 | - | 4.93 | 14,617 |
| History of The Netherlands | 0 | - | 4.46 | 17,558 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,121 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,314 |
| Canary Islands | 0 | - | 4.62 | 17,543 |
