| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,758 |
| Official European Union Languages | 0 | - | 4.97 | 239,853 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,683 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,615 |
| Slavic Languages | 0 | - | 4.67 | 54,712 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,884 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,014 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,330 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,064 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,874 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,879 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,991 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,585 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,510 |
| Celtic Nations | 0 | - | 4.61 | 47,105 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,044 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,839 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,983 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,222 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,816 |
| Slavic Countries | 0 | - | 4.96 | 112,406 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,702 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,466 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,883 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,110 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,755 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,301 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,002 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,796 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,759 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,918 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,008 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,593 |
| Geography of Russia | 0 | - | 4.57 | 21,604 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,494 |
| States of Germany | 0 | - | 4.95 | 154,602 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,711 |
| Regions of Italy | 0 | - | 4.92 | 77,124 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,820 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,366 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,780 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,065 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Champions League Winners | 0 | - | 4.92 | 1,016,522 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,958 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,984 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,990 |
| Departments of France | 0 | - | 4.93 | 55,212 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,752 |
| England or Wales? | 0 | - | 4.94 | 45,977 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,210 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,751 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,721 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,354 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,538 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,743 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,633 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,969 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,099 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,155 |
| Name that Greek Letter | 0 | - | 4.93 | 325,047 |
| Languages of Spain | 0 | - | 4.36 | 23,441 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,680 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,683 |
| Word Chain - Russia | 0 | - | 4.33 | 15,798 |
| The Trojan War | 0 | - | 4.83 | 40,002 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,003 |
| History of Italy | 0 | - | 4.55 | 32,156 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,398 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,608 |
| Roman Emperors | 0 | - | 4.95 | 121,258 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,827 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,430 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,776 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,455 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,770 |
| Top World Languages | 0 | - | 4.92 | 830,160 |
| Australian Capitals | 0 | - | 4.92 | 62,837 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,251 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,652 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,105 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,100 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,176 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,647 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,208 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,797 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,111 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,694 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,253 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,534 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,196 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,470 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,436 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,505 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,555 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,751 |
| Capitals of French Regions | 0 | - | 4.45 | 16,185 |
| Regions of France | 0 | - | 4.70 | 122,152 |
| France Immigration by Country | 0 | - | 4.70 | 76,948 |
| Famous Germans | 0 | - | 4.50 | 55,805 |
| German Groups of Things | 0 | - | 4.47 | 38,642 |
| Capitals of German States | 0 | - | 4.74 | 29,074 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,548 |
| Germany True or False? | 0 | - | 4.61 | 49,026 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,501 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,874 |
| Ancient Greek Words | 0 | - | 4.93 | 112,516 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,411 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,795 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,413 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,849 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,396 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,835 |
| Countries by Official Language | 0 | - | 4.95 | 196,057 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,415 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,701 |
| Countries in their Native Language | 0 | - | 4.99 | 199,789 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,989 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,247 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,635 |
| European Physical Geography | 0 | - | 4.26 | 33,599 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,137 |
| History of Austria | 0 | - | 4.70 | 17,977 |
| Geography of the French Empire | 0 | - | 4.45 | 27,220 |
| The French Revolution | 0 | - | 4.47 | 24,149 |
| France Multiple Choice | 0 | - | 4.39 | 40,855 |
| History of France | 0 | - | 4.61 | 57,641 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,561 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,914 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,525 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,395 |
| The Portuguese Empire | 0 | - | 4.58 | 12,107 |
| American to British Word Translation | 0 | - | 4.14 | 139,724 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,386 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,822 |
| Champions League Top 4 | 0 | - | 4.78 | 139,191 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,698 |
| Asia Map Quiz | 0 | - | 4.99 | 925,493 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,420 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,141 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,486 |
| Australia Map Quiz | 0 | - | 4.95 | 346,227 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,857 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,025 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,942 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,894 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,300 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,316 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,579 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,284 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,048 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,643 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,285 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,668 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,651 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,902 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,952 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,215 |
| European Geography A-Z | 0 | - | 4.29 | 49,488 |
| Country Codes of Europe | 0 | - | 3.45 | 13,836 |
| The Only European Country ... | 0 | - | 4.91 | 219,154 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,586 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,365 |
| Austria... or Australia? | 0 | - | 4.67 | 104,776 |
| Famous French People | 0 | - | 4.05 | 36,118 |
| Presidents of France | 0 | - | 4.25 | 24,344 |
| Word Chain - France | 0 | - | 4.38 | 42,944 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,246 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,051 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,923 |
| Italian Foods | 0 | - | 4.30 | 73,295 |
| Countries Italy Declared War On | 0 | - | 4.75 | 44,924 |
| The Mafia Quiz | 0 | - | 4.46 | 23,440 |
| History of The Netherlands | 0 | - | 4.46 | 17,556 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,120 |
| Canary Islands | 0 | - | 4.62 | 17,543 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,088 |
| British Spellings | 0 | - | 4.06 | 99,610 |
| British Groups of Things | 0 | - | 4.26 | 83,022 |
| British Acronyms | 0 | - | 4.40 | 45,946 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,114 |
| British Monopoly Board | 0 | - | 4.52 | 41,276 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,138 |
| Geography of Scotland | 0 | - | 4.63 | 21,746 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,985 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,449 |
| Countries of Africa | 0 | - | 5.00 | 2,561,037 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,014 |
| African East Coast | 0 | - | 4.96 | 96,803 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,657 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,909 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,889 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,985 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,702 |
| German-Speaking Countries | 0 | - | 4.92 | 146,040 |
| Italian Name Translation | 0 | - | 4.83 | 48,006 |
| French-Speaking Countries | 0 | - | 4.85 | 271,723 |
| Australian States and Territories | 0 | - | 4.96 | 142,893 |
