| European Countries by First 2 Letters | 0 | - | 4.95 | 530,031 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,630 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 214,031 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,232 |
| Official European Union Languages | 0 | - | 4.97 | 238,697 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,980 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,564 |
| Slavic Languages | 0 | - | 4.68 | 54,411 |
| Lithuania Country Quiz | 0 | - | 4.61 | 31,653 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,037 |
| History of Russia Quiz | 0 | - | 4.47 | 31,939 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,758 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,868 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,449 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,859 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,354 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,412 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,300 |
| Slavic Countries | 0 | - | 4.96 | 111,770 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,394 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,114 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,041 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,409 |
| Celtic Nations | 0 | - | 4.69 | 46,967 |
| Champions League Winners | 0 | - | 4.92 | 1,008,234 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,240 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,735 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,128 |
| Geography of Russia | 0 | - | 4.57 | 21,547 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,974 |
| States of Germany | 0 | - | 4.95 | 152,870 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,160 |
| Regions of Italy | 0 | - | 4.92 | 76,064 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,290 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,146 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,294 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,722 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,529 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,581 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,109 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,336 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,407 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,380 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,066 |
| Departments of France | 0 | - | 4.93 | 54,271 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,565 |
| England or Wales? | 0 | - | 4.94 | 45,746 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,689 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,621 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,667 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,778 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,271 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,546 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,905 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,302 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,899 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,852 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,810 |
| The Trojan War | 0 | - | 4.83 | 39,766 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,140 |
| Name that Greek Letter | 0 | - | 4.93 | 323,977 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,009 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,635 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,592 |
| Roman Emperors | 0 | - | 4.95 | 120,212 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,492 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,197 |
| Famous Russians | 0 | - | 4.16 | 23,852 |
| Word Chain - Russia | 0 | - | 4.33 | 15,766 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,464 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,114 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,363 |
| History of Italy | 0 | - | 4.55 | 32,019 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,854 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,691 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,267 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,412 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,457 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,833 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,148 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,781 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,640 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,844 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,657 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,956 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,806 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,101 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,553 |
| Europe Map Quiz | 0 | - | 5.00 | 4,766,807 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,314 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,980 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,265 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,264 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,696 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,504 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,046 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,060 |
| Capitals of French Regions | 0 | - | 4.45 | 16,090 |
| Regions of France | 0 | - | 4.72 | 120,981 |
| France Immigration by Country | 0 | - | 4.70 | 76,594 |
| Famous Germans | 0 | - | 4.50 | 55,348 |
| German Groups of Things | 0 | - | 4.46 | 38,495 |
| Capitals of German States | 0 | - | 4.74 | 28,974 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,363 |
| Germany True or False? | 0 | - | 4.61 | 48,843 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,069 |
| Ancient Greek Words | 0 | - | 4.93 | 111,761 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,560 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,206 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,438 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,289 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,332 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,684 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,540 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,884 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,402 |
| Africa Map Quiz | 0 | - | 5.00 | 2,119,822 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,130 |
| Australian Capitals | 0 | - | 4.92 | 62,734 |
| European Physical Geography | 0 | - | 4.26 | 33,525 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,257 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,989 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,763 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,487 |
| Romania Country Quiz | 0 | - | 4.63 | 53,841 |
| History of Austria | 0 | - | 4.70 | 17,878 |
| Geography of the French Empire | 0 | - | 4.45 | 27,126 |
| The French Revolution | 0 | - | 4.47 | 24,027 |
| France Multiple Choice | 0 | - | 4.39 | 40,752 |
| History of France | 0 | - | 4.59 | 57,138 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,234 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,533 |
| The Vikings! | 0 | - | 4.46 | 28,357 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,170 |
| The Portuguese Empire | 0 | - | 4.58 | 12,076 |
| American to British Word Translation | 0 | - | 4.14 | 139,193 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,924 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,085 |
| Champions League Top 4 | 0 | - | 4.77 | 136,879 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,928 |
| Asia Map Quiz | 0 | - | 4.99 | 917,949 |
| Countries of Africa | 0 | - | 5.00 | 2,540,897 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,957 |
| African East Coast | 0 | - | 4.96 | 96,153 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,021 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,811 |
| Australia Map Quiz | 0 | - | 4.95 | 344,842 |
| United States Map Quiz | 0 | - | 4.98 | 4,161,329 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,522 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,700 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,276 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,732 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,880 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,037 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,150 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,831 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,636 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,272 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,820 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,996 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,713 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,271 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,448 |
| European Geography A-Z | 0 | - | 4.29 | 49,313 |
| Country Codes of Europe | 0 | - | 3.43 | 13,738 |
| The Only European Country ... | 0 | - | 4.91 | 217,005 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,352 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,575 |
| Seas of Europe | 0 | - | 4.37 | 84,686 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,227 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,752 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,320 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,745 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,920 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,751 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,380 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,630 |
| Austria... or Australia? | 0 | - | 4.68 | 104,429 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,074 |
| Famous French People | 0 | - | 4.07 | 35,675 |
| Presidents of France | 0 | - | 4.25 | 24,172 |
| France A-Z | 0 | - | 4.16 | 38,225 |
| Word Chain - France | 0 | - | 4.38 | 42,798 |
| History of Germany | 0 | - | 4.39 | 52,866 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,034 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,934 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,762 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,688 |
| Italian Foods | 0 | - | 4.30 | 72,841 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,369 |
| The Mafia Quiz | 0 | - | 4.46 | 23,345 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,769 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,967 |
| Roman Names for Places | 0 | - | 4.62 | 58,348 |
| Byzantine History | 0 | - | 4.91 | 28,892 |
| Byzantine Emperors | 0 | - | 4.92 | 14,273 |
| History of The Netherlands | 0 | - | 4.46 | 17,449 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,057 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,629 |
| Canary Islands | 0 | - | 4.62 | 17,486 |
