| Count to 10 in Europe: Pro | 0 | - | 4.81 | 61,553 |
| Official European Union Languages | 0 | - | 4.98 | 202,897 |
| European Countries in their Native Language | 0 | - | 4.99 | 145,494 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 489,410 |
| Federal Subjects of Russia | 0 | - | 4.95 | 115,174 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 390,377 |
| Slavic Languages | 0 | - | 4.63 | 49,192 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 38,119 |
| Europe Geography Decoder | 0 | - | 4.88 | 63,950 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 39,230 |
| Top European Languages on a Map | 0 | - | 4.76 | 119,432 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 61,574 |
| Countries where Arabic is an Official Language | 0 | - | 4.83 | 52,341 |
| Top African Languages on a Map | 0 | - | 4.92 | 54,949 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 107,896 |
| Most Spoken Languages in Canada | 0 | - | 4.84 | 47,695 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.90 | 80,445 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 287,774 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 118,259 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 75,866 |
| Eastern Europe Map Quiz | 0 | - | 4.90 | 116,539 |
| Slavic Countries | 0 | - | 4.96 | 101,264 |
| Germany Multiple Choice | 0 | - | 4.81 | 49,857 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 21,093 |
| Champions League Winners | 0 | - | 4.91 | 877,911 |
| Celtic Nations | 0 | - | 4.76 | 44,959 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 32,374 |
| Regions of Spain Quiz | 0 | - | 4.87 | 96,475 |
| Cantons of Switzerland | 0 | - | 4.97 | 41,032 |
| Languages of the United Kingdom | 0 | - | 4.10 | 38,534 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 278,202 |
| Catholic Countries in Europe | 0 | - | 4.87 | 84,810 |
| History of Russia Quiz | 0 | - | 4.48 | 30,037 |
| Geography of Russia | 0 | - | 4.54 | 20,292 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 102,785 |
| France Immigration by Country | 0 | - | 4.81 | 69,731 |
| States of Germany | 0 | - | 4.93 | 125,934 |
| Germany Immigration by Country | 0 | - | 4.90 | 70,740 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,909 |
| Counties of Ireland | 0 | - | 4.90 | 162,013 |
| Regions of Italy | 0 | - | 4.89 | 61,472 |
| England or Wales? | 0 | - | 4.93 | 40,714 |
| All Champions League Teams Ever | 0 | - | 4.90 | 106,966 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,246 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 203,605 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 249,352 |
| Croatia Country Quiz | 0 | - | 4.81 | 37,882 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,860 |
| Spanish Immigration by Country | 0 | - | 4.63 | 52,321 |
| Languages of Spain | 0 | - | 4.35 | 21,533 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,708 |
| Word Scramble - European Countries | 0 | - | 4.72 | 114,785 |
| Top 20 Football Clubs in Europe | 0 | - | 4.50 | 88,936 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 57,096 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.92 | 76,555 |
| Countries that Border Hungary | 0 | - | 4.98 | 97,127 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.81 | 31,331 |
| Moldova Country Quiz | 0 | - | 4.86 | 27,639 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 589,659 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 86,649 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 72,148 |
| Roman Emperors | 0 | - | 4.95 | 96,992 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,606 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 75,080 |
| Most-Spoken Languages of the United States | 0 | - | 4.45 | 165,112 |
| Famous Russians Quiz | 0 | - | 4.15 | 22,702 |
| Word Chain - Russia | 0 | - | 4.37 | 14,906 |
| Russia Multiple Choice | 0 | - | 4.55 | 38,368 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.87 | 89,900 |
| Latvia Country Quiz | 0 | - | 4.84 | 28,821 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,349 |
| Olympian Gods Quiz | 0 | - | 4.96 | 459,861 |
| Name that Greek Letter | 0 | - | 4.94 | 297,659 |
| Italy Multiple Choice | 0 | - | 4.74 | 94,945 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 49,314 |
| Provinces of the Netherlands | 0 | - | 4.65 | 33,804 |
| 100 Greatest Britons Quiz | 0 | - | 4.43 | 46,181 |
| British Acronyms | 0 | - | 4.41 | 43,582 |
| Foods in a Full English Breakfast | 0 | - | 4.42 | 74,283 |
| Beatles Songs Quiz | 0 | - | 4.95 | 210,817 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 275,684 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 257,588 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 247,406 |
| European Geography By Letter - A | 0 | - | 4.57 | 125,276 |
| European Geography By Letter - B #1 | 0 | - | 4.75 | 104,422 |
| European Geography By Letter - C | 0 | - | 4.43 | 105,625 |
| European Geography By Letter - D | 0 | - | 4.51 | 100,201 |
| European Geography By Letter - L | 0 | - | 4.51 | 105,763 |
| European Geography By Letter - M | 0 | - | 4.55 | 115,140 |
| European Geography By Letter - P | 0 | - | 4.79 | 90,287 |
| European Geography By Letter - N | 0 | - | 4.42 | 94,102 |
| European Geography By Letter - V | 0 | - | 4.45 | 86,948 |
| Europe Map Quiz | 0 | - | 5.00 | 4,332,647 |
| Europe Geography Quiz #1 | 0 | - | 4.53 | 67,459 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 67,929 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 66,606 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 58,198 |
| European Geography By Letter - S #1 | 0 | - | 4.58 | 94,413 |
| European Geography By Letter - B #2 | 0 | - | 4.72 | 62,760 |
| Most Mentioned Allies of Russia | 0 | - | 4.47 | 34,581 |
| Most Mentioned Enemies of Russia | 0 | - | 4.70 | 83,181 |
| Regions of France | 0 | - | 4.63 | 102,005 |
| German Groups of Things | 0 | - | 4.43 | 36,221 |
| Capitals of German States | 0 | - | 4.70 | 27,364 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 20,364 |
| Germany True or False? | 0 | - | 4.60 | 44,885 |
| Largest Islands of Greece | 0 | - | 4.58 | 40,629 |
| Ancient Greek Words | 0 | - | 4.90 | 98,678 |
| Capitals of Italian Regions | 0 | - | 4.53 | 26,307 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,476 |
| Top World Languages | 0 | - | 4.92 | 718,014 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 402,765 |
| The Vikings! | 0 | - | 4.45 | 27,242 |
| Sweden Immigration by Country | 0 | - | 4.66 | 42,787 |
| The Portuguese Empire | 0 | - | 4.54 | 11,380 |
| United Kingdom A-Z | 0 | - | 4.53 | 81,418 |
| Champions League Top 4 | 0 | - | 4.69 | 108,907 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,352,558 |
| Asia Map Quiz | 0 | - | 4.99 | 795,516 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 30,689 |
| Africa Map Quiz | 0 | - | 5.00 | 1,953,964 |
| Official Languages of South Africa | 0 | - | 4.55 | 25,011 |
| Oceania Map Quiz | 0 | - | 4.98 | 573,569 |
| Australian Capitals | 0 | - | 4.92 | 61,037 |
| European Physical Geography | 0 | - | 4.20 | 32,056 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 38,295 |
| Slovakia... or Slovenia? | 0 | - | 4.79 | 39,927 |
| Ukraine Country Quiz | 0 | - | 4.41 | 42,854 |
| Hungary Country Quiz | 0 | - | 4.48 | 38,515 |
| Romania Country Quiz | 0 | - | 4.64 | 48,384 |
| History of Austria | 0 | - | 4.69 | 16,507 |
| Geography of the French Empire | 0 | - | 4.49 | 25,547 |
| The French Revolution | 0 | - | 4.45 | 22,080 |
| France Multiple Choice | 0 | - | 4.40 | 38,888 |
| History of France Quiz | 0 | - | 4.55 | 39,918 |
| Figures from Greek Mythology | 0 | - | 4.92 | 170,404 |
| History of Ireland Quiz | 0 | - | 4.44 | 19,090 |
| History of Italy | 0 | - | 4.49 | 29,958 |
| Countries by Official Language | 0 | - | 4.96 | 174,451 |
| Places in their Native Language #1 | 0 | - | 4.86 | 212,435 |
| Places in their Native Language #2 | 0 | - | 4.88 | 113,975 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,720 |
| Countries in their Native Language | 0 | - | 4.98 | 179,600 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,760 |
| Roman Names for Places | 0 | - | 4.66 | 42,000 |
| Byzantine History | 0 | - | 4.87 | 26,429 |
| History of The Netherlands | 0 | - | 4.43 | 15,887 |
| Famous Nordic People | 0 | - | 4.41 | 10,706 |
| Kings of Spain Quiz | 0 | - | 4.12 | 12,919 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,785 |
| Canary Islands | 0 | - | 4.61 | 16,610 |
| Real Madrid 2010's Starting XI | 0 | - | 4.85 | 53,108 |
| Switzerland Immigration by Country | 0 | - | 4.76 | 22,372 |
| British Spellings Quiz | 0 | - | 4.04 | 94,951 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 66,085 |
| British Groups of Things | 0 | - | 4.26 | 80,616 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,841 |
| British Monopoly Board | 0 | - | 4.51 | 39,393 |
| Wonderwall Lyrics | 0 | - | 4.23 | 69,191 |
| Best-Selling British Musical Acts | 0 | - | 4.47 | 43,840 |
| Champions League All-Time Table | 0 | - | 4.15 | 120,117 |
| Champions League Top Goal Scorers | 0 | - | 4.24 | 182,491 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 81,194 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,289,701 |
| Japanese Language - Katakana Practice | 0 | - | 4.58 | 26,762 |
| Countries of Africa | 0 | - | 5.00 | 2,199,374 |
| African East Coast | 0 | - | 4.97 | 85,240 |
| Western Africa Map Quiz | 0 | - | 4.97 | 61,828 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 41,141 |
| Australia Map Quiz | 0 | - | 4.95 | 321,898 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,569 |
| United States Map Quiz | 0 | - | 4.98 | 3,923,769 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 196,537 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 87,078 |
| Countries That Use the Euro | 0 | - | 4.93 | 65,050 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 338,468 |
| European Geography By Letter - E | 0 | - | 4.21 | 106,096 |
| European Geography By Letter - F | 0 | - | 4.16 | 85,814 |
| European Geography By Letter - H | 0 | - | 4.31 | 89,451 |
| European Geography By Letter - G | 0 | - | 4.25 | 95,649 |
| European Geography By Letter - I | 0 | - | 4.10 | 89,270 |
| European Geography By Letter - K | 0 | - | 4.14 | 64,952 |
| European Geography By Letter - O | 0 | - | 4.28 | 58,155 |
| European Geography By Letter - R | 0 | - | 4.40 | 88,015 |
| European Geography by Letter - W | 0 | - | 4.22 | 78,616 |
| European Geography By Letter - T | 0 | - | 4.40 | 71,286 |
| Europe Geography Quiz #3 | 0 | - | 4.32 | 60,301 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 47,144 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 94,410 |
| European Geography A-Z | 0 | - | 4.36 | 45,756 |
| Country Codes of Europe | 0 | - | 3.36 | 12,826 |
| The Only European Country ... | 0 | - | 4.93 | 181,582 |
| Name a Major European City A-Z | 0 | - | 4.34 | 43,452 |
| Seas of Europe | 0 | - | 4.34 | 80,022 |
| Slovenia Country Quiz | 0 | - | 4.51 | 27,594 |
| Embarrassing Chapters in Russian History | 0 | - | 3.80 | 19,406 |
| Slovakia Country Quiz | 0 | - | 4.61 | 27,456 |
| Bulgaria Country Quiz | 0 | - | 4.72 | 27,796 |
| Montenegro Country Quiz | 0 | - | 4.56 | 21,491 |
| North Macedonia Country Quiz | 0 | - | 4.79 | 25,031 |
