| Official European Union Languages | 0 | - | 4.98 | 200,131 |
| European Countries in their Native Language | 0 | - | 4.99 | 143,796 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 456,770 |
| Federal Subjects of Russia | 0 | - | 4.95 | 112,152 |
| Count to 10 in Europe: Pro | 0 | - | 4.80 | 60,879 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 385,697 |
| Slavic Languages | 0 | - | 4.58 | 48,683 |
| Countries that Beat Switzerland | 0 | - | 4.85 | 37,557 |
| Europe Geography Decoder | 0 | - | 4.89 | 63,190 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 39,024 |
| Top European Languages on a Map | 0 | - | 4.76 | 117,994 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 20,831 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 60,572 |
| Countries where Arabic is an Official Language | 0 | - | 4.84 | 52,017 |
| Top African Languages on a Map | 0 | - | 4.91 | 52,751 |
| Third Most Common Language by U.S. State | 0 | - | 4.91 | 106,880 |
| Most Spoken Languages in Canada | 0 | - | 4.82 | 46,900 |
| Celtic Nations | 0 | - | 4.76 | 44,627 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.90 | 79,571 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 284,818 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 115,434 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 74,430 |
| Eastern Europe Map Quiz | 0 | - | 4.89 | 115,578 |
| Slavic Countries | 0 | - | 4.96 | 100,302 |
| Germany Multiple Choice | 0 | - | 4.81 | 49,287 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 31,724 |
| Regions of Spain Quiz | 0 | - | 4.85 | 94,708 |
| Cantons of Switzerland | 0 | - | 4.96 | 40,175 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 269,219 |
| Champions League Winners | 0 | - | 4.91 | 851,174 |
| Catholic Countries in Europe | 0 | - | 4.87 | 83,558 |
| Category Elimination - European Geography #3 | 0 | - | 4.84 | 65,524 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 101,786 |
| States of Germany | 0 | - | 4.93 | 123,324 |
| Germany Immigration by Country | 0 | - | 4.90 | 69,606 |
| Counties of Ireland | 0 | - | 4.89 | 158,948 |
| Regions of Italy | 0 | - | 4.88 | 60,264 |
| Languages of the United Kingdom | 0 | - | 4.10 | 38,320 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,777 |
| History of Russia Quiz | 0 | - | 4.48 | 29,844 |
| Geography of Russia | 0 | - | 4.54 | 20,158 |
| States of the German Confederation in 1848 | 0 | - | 4.83 | 26,446 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,575 |
| England or Wales? | 0 | - | 4.93 | 40,196 |
| All Champions League Teams Ever | 0 | - | 4.89 | 104,241 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 200,406 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 246,573 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 142,543 |
| Word Chain - Russia | 0 | - | 4.41 | 14,806 |
| Croatia Country Quiz | 0 | - | 4.81 | 37,194 |
| Spanish Immigration by Country | 0 | - | 4.63 | 51,806 |
| Languages of Spain | 0 | - | 4.34 | 21,308 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,381 |
| Word Scramble - European Countries | 0 | - | 4.72 | 113,768 |
| Top 20 Football Clubs in Europe | 0 | - | 4.49 | 85,221 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 56,249 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.94 | 75,852 |
| Countries that Border Hungary | 0 | - | 4.98 | 96,117 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.82 | 30,924 |
| Moldova Country Quiz | 0 | - | 4.86 | 27,309 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 583,696 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,643 |
| Roman Emperors | 0 | - | 4.95 | 95,751 |
| Geography of the Dutch Empire | 0 | - | 4.71 | 32,418 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 74,582 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 255,010 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 244,512 |
| Most-Spoken Languages of the United States | 0 | - | 4.45 | 163,521 |
| Famous Russians Quiz | 0 | - | 4.15 | 22,622 |
| Russia Multiple Choice | 0 | - | 4.55 | 38,065 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.87 | 89,055 |
| Latvia Country Quiz | 0 | - | 4.84 | 28,431 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,024 |
| The Trojan War | 0 | - | 4.81 | 35,910 |
| Name that Greek Letter | 0 | - | 4.94 | 295,713 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 85,241 |
| Italy Multiple Choice | 0 | - | 4.74 | 93,709 |
| Provinces of the Netherlands | 0 | - | 4.61 | 33,243 |
| 100 Greatest Britons Quiz | 0 | - | 4.44 | 46,006 |
| British Acronyms | 0 | - | 4.42 | 43,334 |
| Foods in a Full English Breakfast | 0 | - | 4.41 | 73,327 |
| Beatles Songs Quiz | 0 | - | 4.95 | 206,123 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 273,521 |
| European Geography By Letter - A | 0 | - | 4.51 | 124,316 |
| European Geography By Letter - B #1 | 0 | - | 4.72 | 103,492 |
| European Geography By Letter - C | 0 | - | 4.43 | 104,863 |
| European Geography By Letter - D | 0 | - | 4.52 | 99,471 |
| European Geography By Letter - L | 0 | - | 4.51 | 104,869 |
| European Geography By Letter - M | 0 | - | 4.55 | 114,368 |
| European Geography By Letter - P | 0 | - | 4.79 | 89,483 |
| European Geography By Letter - N | 0 | - | 4.43 | 93,374 |
| European Geography By Letter - V | 0 | - | 4.45 | 86,408 |
| Europe Map Quiz | 0 | - | 5.00 | 4,286,315 |
| Europe Geography Quiz #1 | 0 | - | 4.53 | 67,035 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 67,504 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 66,173 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 57,850 |
| European Geography By Letter - S #1 | 0 | - | 4.57 | 93,866 |
| European Geography By Letter - B #2 | 0 | - | 4.72 | 61,983 |
| Most Mentioned Allies of Russia | 0 | - | 4.47 | 34,096 |
| Most Mentioned Enemies of Russia | 0 | - | 4.70 | 82,259 |
| Regions of France | 0 | - | 4.63 | 100,247 |
| France Immigration by Country | 0 | - | 4.80 | 68,866 |
| German Groups of Things | 0 | - | 4.43 | 35,940 |
| Capitals of German States | 0 | - | 4.67 | 27,108 |
| Chancellors of Germany, 1949–present | 0 | - | 4.53 | 15,321 |
| Germany True or False? | 0 | - | 4.63 | 44,409 |
| Largest Islands of Greece | 0 | - | 4.57 | 39,601 |
| Olympian Gods Quiz | 0 | - | 4.96 | 456,932 |
| Ancient Greek Words | 0 | - | 4.90 | 97,271 |
| Capitals of Italian Regions | 0 | - | 4.52 | 26,105 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,549 |
| Top World Languages | 0 | - | 4.91 | 706,156 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 399,019 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,582 |
| The Vikings! | 0 | - | 4.44 | 27,100 |
| Sweden Immigration by Country | 0 | - | 4.66 | 42,235 |
| The Portuguese Empire | 0 | - | 4.54 | 11,332 |
| British Words Quiz #2 | 0 | - | 4.04 | 106,850 |
| United Kingdom A-Z | 0 | - | 4.53 | 80,825 |
| Champions League Top 4 | 0 | - | 4.77 | 104,721 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,343,361 |
| Asia Map Quiz | 0 | - | 4.99 | 783,849 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 30,508 |
| Africa Map Quiz | 0 | - | 5.00 | 1,936,844 |
| Official Languages of South Africa | 0 | - | 4.54 | 24,902 |
| Oceania Map Quiz | 0 | - | 4.97 | 567,159 |
| Australian Capitals | 0 | - | 4.92 | 60,430 |
| European Physical Geography | 0 | - | 4.19 | 31,904 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 37,770 |
| Slovakia... or Slovenia? | 0 | - | 4.79 | 39,647 |
| Hungary Country Quiz | 0 | - | 4.48 | 37,991 |
| Romania Country Quiz | 0 | - | 4.66 | 47,653 |
| History of Austria | 0 | - | 4.68 | 16,374 |
| Geography of the French Empire | 0 | - | 4.49 | 25,399 |
| The French Revolution | 0 | - | 4.45 | 21,911 |
| France Multiple Choice | 0 | - | 4.40 | 38,499 |
| History of France Quiz | 0 | - | 4.55 | 39,653 |
| History of Ireland Quiz | 0 | - | 4.44 | 18,886 |
| History of Italy | 0 | - | 4.49 | 29,765 |
| Countries by Official Language | 0 | - | 4.95 | 164,370 |
| Places in their Native Language #1 | 0 | - | 4.86 | 210,244 |
| Places in their Native Language #2 | 0 | - | 4.88 | 112,841 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 248,684 |
| Countries in their Native Language | 0 | - | 4.98 | 177,972 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,058 |
| History of The Netherlands | 0 | - | 4.42 | 15,746 |
| Kings of Spain Quiz | 0 | - | 4.12 | 12,821 |
| Canary Islands | 0 | - | 4.60 | 16,546 |
| Real Madrid 2010's Starting XI | 0 | - | 4.85 | 50,851 |
| Switzerland Immigration by Country | 0 | - | 4.79 | 20,872 |
| British Spellings Quiz | 0 | - | 4.04 | 94,628 |
| British Groups of Things | 0 | - | 4.26 | 80,110 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,724 |
| British Monopoly Board | 0 | - | 4.51 | 39,221 |
| South and Central Asia Map Quiz | 0 | - | 4.92 | 79,677 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,280,136 |
| Countries of Africa | 0 | - | 5.00 | 2,162,816 |
| African East Coast | 0 | - | 4.97 | 84,059 |
| Western Africa Map Quiz | 0 | - | 4.97 | 60,810 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 40,201 |
| Australia Map Quiz | 0 | - | 4.95 | 319,378 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,041 |
| United States Map Quiz | 0 | - | 4.98 | 3,898,754 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 195,231 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.92 | 86,610 |
| Countries That Use the Euro | 0 | - | 4.92 | 62,652 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 335,511 |
| European Geography By Letter - E | 0 | - | 4.20 | 105,367 |
| European Geography By Letter - F | 0 | - | 4.15 | 85,226 |
| European Geography By Letter - H | 0 | - | 4.29 | 88,574 |
| European Geography By Letter - G | 0 | - | 4.24 | 95,035 |
| European Geography By Letter - I | 0 | - | 4.09 | 88,733 |
| European Geography By Letter - K | 0 | - | 4.16 | 64,445 |
| European Geography By Letter - O | 0 | - | 4.27 | 57,705 |
| European Geography By Letter - R | 0 | - | 4.39 | 87,490 |
| European Geography by Letter - W | 0 | - | 4.21 | 78,227 |
| European Geography By Letter - T | 0 | - | 4.39 | 70,853 |
| Europe Geography Quiz #3 | 0 | - | 4.32 | 59,919 |
| European Geography By Letter - S #2 | 0 | - | 4.16 | 46,712 |
| 10 Easternmost Countries in Europe | 0 | - | 4.85 | 91,938 |
| European Geography A-Z | 0 | - | 4.40 | 45,356 |
| Country Codes of Europe | 0 | - | 3.34 | 12,733 |
| The Only European Country ... | 0 | - | 4.94 | 178,015 |
| Embarrassing Chapters in Russian History | 0 | - | 3.80 | 19,322 |
| Austria... or Australia? | 0 | - | 4.79 | 97,911 |
| Capitals of French Regions | 0 | - | 4.40 | 14,753 |
| Presidents of France | 0 | - | 4.22 | 20,111 |
| Word Chain - France | 0 | - | 4.38 | 39,970 |
| Famous Germans | 0 | - | 4.39 | 35,174 |
| Ancient Greek Trivia | 0 | - | 4.55 | 63,356 |
| Figures from Greek Mythology | 0 | - | 4.92 | 169,318 |
| Famous Italians | 0 | - | 4.40 | 66,134 |
| Italian Foods | 0 | - | 4.25 | 64,083 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,488 |
| Every Country in its Official/Native Language | 0 | - | 4.96 | 17,275 |
| German-Speaking Countries | 0 | - | 4.88 | 117,462 |
| French Food Words | 0 | - | 4.81 | 174,817 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,367 |
| Geography of the Roman Empire | 0 | - | 4.55 | 48,469 |
