| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,629 |
| Official European Union Languages | 0 | - | 4.97 | 237,043 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,762 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,724 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,579 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,773 |
| Departments of France | 0 | - | 4.93 | 52,915 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,385 |
| England or Wales? | 0 | - | 4.94 | 45,359 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,482 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,533 |
| Slavic Languages | 0 | - | 4.67 | 54,017 |
| The Trojan War | 0 | - | 4.83 | 39,460 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,666 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,098 |
| Roman Emperors | 0 | - | 4.95 | 118,589 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,568 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,207 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,584 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,574 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,395 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,674 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,908 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,015 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,138 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,061 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,398 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,750 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,263 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,250 |
| Celtic Nations | 0 | - | 4.69 | 46,825 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,350 |
| Champions League Winners | 0 | - | 4.92 | 997,184 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,393 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,288 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,343 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,891 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,211 |
| Countries Bordering France | 0 | - | 4.83 | 399,796 |
| States of Germany | 0 | - | 4.96 | 150,245 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,089 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,243 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,566 |
| Regions of Italy | 0 | - | 4.92 | 74,813 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,885 |
| The Vikings! | 0 | - | 4.46 | 28,251 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,455 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,286 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,732 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,263 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,546 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,182 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,724 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,407 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,313 |
| Austria... or Australia? | 0 | - | 4.68 | 103,908 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,316 |
| Germany Country Quiz | 0 | - | 4.82 | 156,680 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,238 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,796 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,779 |
| Italy Country Quiz | 0 | - | 4.82 | 122,314 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,502 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,165 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,001 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,142 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,725 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,029 |
| UK Immigration by Country | 0 | - | 4.94 | 139,760 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,332 |
| British Monopoly Board | 0 | - | 4.52 | 41,042 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,409 |
| Name the English Monarchs | 0 | - | 4.92 | 498,316 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,623 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,458 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,607 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,037 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,200 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,880 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,426 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,558 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,835 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,782 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,966 |
| France A-Z | 0 | - | 4.16 | 38,068 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,567 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,839 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,645 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,460 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,505 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,511 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,393 |
| Name that Greek Letter | 0 | - | 4.94 | 321,809 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,961 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,460 |
| Counties of Ireland | 0 | - | 4.92 | 193,220 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,443 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,493 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,934 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,417 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,555 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,698 |
| Roman Names for Places | 0 | - | 4.62 | 57,903 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,902 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,725 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,264 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,480 |
| Languages of Spain | 0 | - | 4.36 | 23,162 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,414 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,504 |
| Switzerland A-Z | 0 | - | 4.45 | 25,518 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,460 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,926 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,357 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,771 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,470 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,428 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,797 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,819 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,958 |
| History of Russia Quiz | 0 | - | 4.49 | 31,801 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,587 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,105 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,736 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,999 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,705 |
| Famous Irish People | 0 | - | 4.05 | 45,864 |
| History of Italy | 0 | - | 4.55 | 31,836 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,217 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,494 |
| Famous Nordic People | 0 | - | 4.34 | 19,878 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,696 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,291 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,993 |
| Geography of Spain | 0 | - | 4.59 | 21,975 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,819 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,584 |
| London A-Z | 0 | - | 4.10 | 40,650 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,438 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,652 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,449 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,948 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,898 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,755 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,266 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,977 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,712 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,665 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,050 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,356 |
| Europe Map Quiz | 0 | - | 5.00 | 4,733,646 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,013 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,645 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,967 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,008 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,631 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,187 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,645 |
| Capitals of French Regions | 0 | - | 4.45 | 15,991 |
| Regions of France | 0 | - | 4.78 | 119,370 |
| France Immigration by Country | 0 | - | 4.72 | 76,004 |
| Kings of France Quiz | 0 | - | 4.20 | 32,571 |
| Famous Germans | 0 | - | 4.50 | 54,656 |
| German Groups of Things | 0 | - | 4.46 | 38,315 |
| Capitals of German States | 0 | - | 4.74 | 28,818 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,111 |
| Germany True or False? | 0 | - | 4.61 | 48,551 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,507 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,427 |
| Ancient Greek Words | 0 | - | 4.92 | 110,771 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,595 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,118 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,654 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,859 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,073 |
| British to American Food Translation | 0 | - | 3.38 | 51,859 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,039 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,405 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,253 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,422 |
| Famous Scottish People | 0 | - | 4.22 | 18,334 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,228 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,288 |
| Top World Languages | 0 | - | 4.92 | 813,739 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,367 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,048 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,855 |
| Australian Capitals | 0 | - | 4.92 | 62,598 |
| European Physical Geography | 0 | - | 4.26 | 33,381 |
| Geography of Russia | 0 | - | 4.57 | 21,434 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,797 |
| History of Austria | 0 | - | 4.70 | 17,764 |
| Austria Country Quiz | 0 | - | 4.57 | 59,383 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,290 |
| France Country Quiz | 0 | - | 4.70 | 133,925 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,933 |
| Geography of the French Empire | 0 | - | 4.48 | 26,944 |
| The French Revolution | 0 | - | 4.46 | 23,795 |
| France Multiple Choice | 0 | - | 4.38 | 40,643 |
| Tour de France Winners | 0 | - | 4.27 | 15,233 |
