| European Countries by First 2 Letters | 0 | - | 4.96 | 520,241 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 67,483 |
| Official European Union Languages | 0 | - | 4.98 | 233,607 |
| European Countries in their Native Language | 0 | - | 4.99 | 154,804 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 419,451 |
| Slavic Languages | 0 | - | 4.68 | 53,250 |
| Europe Geography Decoder | 0 | - | 4.86 | 68,586 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 41,058 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,241 |
| Add A Letter - Make a European City | 0 | - | 4.89 | 22,905 |
| Celtic Nations | 0 | - | 4.69 | 46,524 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.84 | 85,819 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 304,506 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 159,958 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 86,365 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 125,359 |
| Slavic Countries | 0 | - | 4.96 | 109,438 |
| Germany Multiple Choice | 0 | - | 4.83 | 53,451 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 340,094 |
| Catholic Countries in Europe | 0 | - | 4.83 | 92,644 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 57,478 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 74,030 |
| History of Russia Quiz | 0 | - | 4.49 | 31,563 |
| Federal Subjects of Russia | 0 | - | 4.95 | 139,123 |
| Geography of Russia | 0 | - | 4.57 | 21,228 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 122,551 |
| States of Germany | 0 | - | 4.95 | 145,294 |
| Germany Immigration by Country | 0 | - | 4.87 | 78,511 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 30,599 |
| Regions of Italy | 0 | - | 4.92 | 72,144 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 42,012 |
| Regions of Spain Quiz | 0 | - | 4.90 | 109,545 |
| Cantons of Switzerland | 0 | - | 4.97 | 48,352 |
| American to British Word Translation | 0 | - | 4.05 | 116,121 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,125 |
| Champions League Winners | 0 | - | 4.92 | 979,362 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 225,878 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 269,943 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 161,729 |
| Departments of France | 0 | - | 4.92 | 49,580 |
| Countries Surrounding Rome | 0 | - | 4.97 | 48,945 |
| England or Wales? | 0 | - | 4.94 | 44,595 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 125,611 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,078 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,464 |
| Word Scramble - European Countries | 0 | - | 4.73 | 138,324 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 109,493 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,145 |
| Spanish Immigration by Country | 0 | - | 4.61 | 54,810 |
| British Spellings Quiz | 0 | - | 4.08 | 98,392 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 63,579 |
| French Geography Quiz #1 | 0 | - | 4.88 | 33,987 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 629,886 |
| Name that Greek Letter | 0 | - | 4.93 | 317,703 |
| British to American Word Translation | 0 | - | 3.75 | 252,670 |
| British Foods | 0 | - | 3.88 | 48,088 |
| British and American Word Differences | 0 | - | 2.67 | 45,768 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 263,612 |
| Top European Languages on a Map | 0 | - | 4.77 | 129,385 |
| Word Chain - Russia | 0 | - | 4.33 | 15,563 |
| The Trojan War | 0 | - | 4.81 | 38,803 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.83 | 107,719 |
| Italy Multiple Choice | 0 | - | 4.74 | 101,894 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 82,899 |
| Roman Emperors | 0 | - | 4.96 | 114,671 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 34,140 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,684 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 273,869 |
| Australian Capitals | 0 | - | 4.92 | 62,341 |
| European Geography By Letter - A | 0 | - | 4.56 | 131,141 |
| European Geography By Letter - B #1 | 0 | - | 4.70 | 109,604 |
| European Geography By Letter - C | 0 | - | 4.46 | 110,736 |
| European Geography By Letter - D | 0 | - | 4.51 | 105,448 |
| European Geography By Letter - L | 0 | - | 4.51 | 110,775 |
| European Geography By Letter - M | 0 | - | 4.52 | 126,582 |
| European Geography By Letter - P #1 | 0 | - | 4.78 | 95,112 |
| European Geography By Letter - N | 0 | - | 4.44 | 98,689 |
| European Geography By Letter - R | 0 | - | 4.41 | 91,639 |
| European Geography By Letter - V | 0 | - | 4.43 | 91,136 |
| European Geography By Letter - T | 0 | - | 4.41 | 79,683 |
| Europe Map Quiz | 0 | - | 5.00 | 4,670,165 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,458 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,019 |
| Europe Geography Quiz #4 | 0 | - | 4.56 | 69,434 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,490 |
| European Geography By Letter - S #1 | 0 | - | 4.61 | 98,434 |
| Capitals of French Regions | 0 | - | 4.43 | 15,805 |
| Regions of France | 0 | - | 4.74 | 116,073 |
| France Immigration by Country | 0 | - | 4.73 | 75,019 |
| German Loan Words | 0 | - | 4.26 | 134,762 |
| Famous Germans | 0 | - | 4.49 | 53,113 |
| German Groups of Things | 0 | - | 4.46 | 38,002 |
| Capitals of German States | 0 | - | 4.70 | 28,547 |
| Chancellors of Germany, 1949–present | 0 | - | 4.58 | 22,670 |
| Germany True or False? | 0 | - | 4.63 | 48,028 |
| Largest Islands of Greece | 0 | - | 4.58 | 46,351 |
| Olympian Gods Quiz | 0 | - | 4.96 | 478,685 |
| Ancient Greek Words | 0 | - | 4.92 | 108,524 |
| Famous Italians by Clue | 0 | - | 4.45 | 86,743 |
| Provinces of the Netherlands | 0 | - | 4.77 | 39,463 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 47,768 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 100,612 |
| Beatles Songs Quiz | 0 | - | 4.97 | 229,481 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 287,846 |
| Elemental Words | 0 | - | 4.96 | 51,352 |
| Africa Map Quiz | 0 | - | 5.00 | 2,081,133 |
| Oceania Map Quiz | 0 | - | 4.98 | 622,631 |
| European Physical Geography | 0 | - | 4.26 | 33,150 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,407 |
| History of Austria | 0 | - | 4.70 | 17,504 |
| Geography of the French Empire | 0 | - | 4.51 | 26,575 |
| The French Revolution | 0 | - | 4.46 | 23,317 |
| France Multiple Choice | 0 | - | 4.38 | 40,374 |
| History of France Quiz | 0 | - | 4.56 | 42,414 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.42 | 23,167 |
| History of Italy | 0 | - | 4.55 | 31,510 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 426,018 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 54,443 |
| The Vikings! | 0 | - | 4.46 | 28,082 |
| Sweden Immigration by Country | 0 | - | 4.54 | 55,029 |
| The Portuguese Empire | 0 | - | 4.54 | 11,872 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,376 |
| United Kingdom A-Z | 0 | - | 4.53 | 86,406 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,047 |
| Champions League Top 4 | 0 | - | 4.74 | 129,404 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,425,576 |
| Asia Map Quiz | 0 | - | 4.99 | 888,117 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 697,798 |
| Countries of Africa | 0 | - | 5.00 | 2,451,821 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 43,851 |
| African East Coast | 0 | - | 4.96 | 93,309 |
| Western Africa Map Quiz | 0 | - | 4.97 | 71,229 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 48,255 |
| Australia Map Quiz | 0 | - | 4.94 | 339,079 |
| United States Map Quiz | 0 | - | 4.98 | 4,112,915 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.20 | 52,287 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 205,247 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 91,084 |
| Countries That Use the Euro | 0 | - | 4.96 | 98,906 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 358,594 |
| European Geography By Letter - E | 0 | - | 4.23 | 111,099 |
| European Geography By Letter - F | 0 | - | 4.16 | 90,589 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,017 |
| European Geography By Letter - G | 0 | - | 4.25 | 100,336 |
| European Geography By Letter - I | 0 | - | 4.10 | 93,505 |
| European Geography By Letter - K | 0 | - | 4.14 | 68,390 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,235 |
| European Geography by Letter - W | 0 | - | 4.20 | 81,759 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 62,912 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 49,941 |
| 10 Easternmost Countries in Europe | 0 | - | 4.88 | 110,256 |
| European Geography A-Z | 0 | - | 4.28 | 48,484 |
| Country Codes of Europe | 0 | - | 3.44 | 13,484 |
| The Only European Country ... | 0 | - | 4.92 | 207,306 |
| European Countries NOT in NATO | 0 | - | 4.89 | 56,434 |
| Embarrassing Chapters in Russian History | 0 | - | 3.74 | 20,092 |
| Austria... or Australia? | 0 | - | 4.69 | 102,974 |
| Presidents of France | 0 | - | 4.25 | 23,301 |
| Word Chain - France | 0 | - | 4.38 | 42,239 |
| Ancient Greek Trivia | 0 | - | 4.61 | 66,224 |
| Figures from Greek Mythology | 0 | - | 4.90 | 179,790 |
| Italian Foods | 0 | - | 4.30 | 71,058 |
| History of The Netherlands | 0 | - | 4.46 | 17,024 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,811 |
| Canary Islands | 0 | - | 4.61 | 17,260 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 28,175 |
| British Groups of Things | 0 | - | 4.25 | 82,414 |
| British Acronyms | 0 | - | 4.39 | 45,295 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,767 |
| British Monopoly Board | 0 | - | 4.51 | 40,754 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 94,256 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,363,360 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,263 |
| Country Name Etymologies #1 | 0 | - | 4.97 | 157,243 |
| Country Name Etymologies #2 | 0 | - | 4.96 | 85,054 |
| Japanese Loanwords | 0 | - | 4.47 | 83,569 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 97,203 |
| Flags of Africa Quiz | 0 | - | 5.00 | 447,895 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 212,919 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 113,917 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 158,062 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 133,382 |
| Top African Languages on a Map | 0 | - | 4.92 | 69,616 |
| African Island Countries | 0 | - | 4.96 | 99,008 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 239,124 |
| Australian States and Territories | 0 | - | 4.95 | 138,849 |
| Australian Immigration by Country | 0 | - | 4.81 | 76,447 |
| Australian Slang | 0 | - | 4.23 | 28,178 |
| Australia True or False | 0 | - | 4.87 | 55,862 |
| Flags of North and South America | 0 | - | 4.99 | 348,961 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 111,458 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 141,875 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 125,330 |
| South America Map Quiz | 0 | - | 5.00 | 1,524,629 |
| Countries of North America Quiz | 0 | - | 5.00 | 991,181 |
| North America Map Quiz | 0 | - | 4.98 | 237,140 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 112,746 |
| Canada Provinces and Territories | 0 | - | 5.00 | 328,557 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 624,660 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 53,578 |
