| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,688 |
| Official European Union Languages | 0 | - | 4.97 | 237,171 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,034 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,742 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,747 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,054 |
| Departments of France | 0 | - | 4.93 | 52,988 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,400 |
| England or Wales? | 0 | - | 4.94 | 45,389 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,552 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,645 |
| Slavic Languages | 0 | - | 4.68 | 54,045 |
| The Trojan War | 0 | - | 4.83 | 39,478 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,758 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,130 |
| Roman Emperors | 0 | - | 4.95 | 118,670 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,594 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,604 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,280 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,782 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,730 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,424 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,722 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,259 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,942 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,209 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,553 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,091 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,579 |
| Champions League Winners | 0 | - | 4.92 | 997,793 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,807 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,290 |
| Celtic Nations | 0 | - | 4.69 | 46,837 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,469 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,340 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,427 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,966 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,495 |
| Countries Bordering France | 0 | - | 4.83 | 400,212 |
| States of Germany | 0 | - | 4.96 | 150,443 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,139 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,387 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,612 |
| Regions of Italy | 0 | - | 4.92 | 74,894 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,938 |
| The Vikings! | 0 | - | 4.46 | 28,260 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,586 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,457 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,751 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,304 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,571 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,199 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,932 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,897 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,520 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,440 |
| Austria... or Australia? | 0 | - | 4.68 | 103,950 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,866 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,387 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,594 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,873 |
| Germany Country Quiz | 0 | - | 4.82 | 156,776 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,314 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,706 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,811 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,799 |
| Counties of Ireland | 0 | - | 4.92 | 193,399 |
| Italy Country Quiz | 0 | - | 4.82 | 122,389 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,561 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,241 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,525 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,035 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,511 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,196 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,786 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,131 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,833 |
| UK Immigration by Country | 0 | - | 4.94 | 139,847 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,439 |
| British Monopoly Board | 0 | - | 4.52 | 41,067 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,520 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,424 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,943 |
| Name the English Monarchs | 0 | - | 4.92 | 498,734 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,862 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,858 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,735 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,475 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,611 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,078 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,319 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,449 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,562 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,878 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,973 |
| France A-Z | 0 | - | 4.16 | 38,084 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,689 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,533 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,562 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,890 |
| Name that Greek Letter | 0 | - | 4.94 | 321,954 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,009 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,480 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,453 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,970 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,570 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,728 |
| Roman Names for Places | 0 | - | 4.62 | 57,931 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,703 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,953 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,771 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,276 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,495 |
| Languages of Spain | 0 | - | 4.36 | 23,170 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,538 |
| Switzerland A-Z | 0 | - | 4.45 | 25,533 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,486 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,939 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,489 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,548 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,203 |
| History of Russia Quiz | 0 | - | 4.49 | 31,806 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,596 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,112 |
| Kings of France Quiz | 0 | - | 4.20 | 32,583 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,751 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,015 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,095 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,433 |
| Ancient Greek Words | 0 | - | 4.92 | 110,849 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,577 |
| Famous Irish People | 0 | - | 4.05 | 45,873 |
| History of Italy | 0 | - | 4.55 | 31,854 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,272 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,119 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,504 |
| Famous Nordic People | 0 | - | 4.34 | 19,902 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,295 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,012 |
| Geography of Spain | 0 | - | 4.59 | 21,984 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,847 |
| British Geography A-Z | 0 | - | 4.41 | 19,435 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,435 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,493 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,588 |
| London A-Z | 0 | - | 4.10 | 40,668 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,446 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,733 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,505 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,987 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,949 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,800 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,306 |
| European Geography By Letter - M | 0 | - | 4.61 | 129,063 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,916 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,697 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,073 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,405 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,149 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,031 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,665 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,991 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,025 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,661 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,229 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,671 |
| Capitals of French Regions | 0 | - | 4.45 | 15,996 |
| Regions of France | 0 | - | 4.78 | 119,495 |
| France Immigration by Country | 0 | - | 4.72 | 76,037 |
| Famous Germans | 0 | - | 4.50 | 54,695 |
| German Groups of Things | 0 | - | 4.46 | 38,334 |
| Capitals of German States | 0 | - | 4.74 | 28,847 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,127 |
| Germany True or False? | 0 | - | 4.61 | 48,574 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,572 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,659 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,149 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,686 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,901 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,091 |
| British to American Food Translation | 0 | - | 3.38 | 51,878 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,096 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,306 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,416 |
| Famous Scottish People | 0 | - | 4.22 | 18,339 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,336 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,498 |
| Top World Languages | 0 | - | 4.92 | 814,496 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,263 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,057 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,336 |
| Australian Capitals | 0 | - | 4.92 | 62,610 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,113 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,294 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,732 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,965 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,367 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,560 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,236 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,984 |
