| Europe Geography Decoder | 0 | - | 4.88 | 63,960 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 21,095 |
| Greenland Country Quiz | 0 | - | 4.81 | 32,732 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 489,511 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 67,129 |
| German Groups of Things | 0 | - | 4.43 | 36,225 |
| England or Wales? | 0 | - | 4.93 | 40,730 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 203,656 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 249,393 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 145,117 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,865 |
| Most Common Last Names in Sweden | 0 | - | 4.43 | 14,185 |
| Count to 10 in Europe: Pro | 0 | - | 4.81 | 61,570 |
| Official European Union Languages | 0 | - | 4.98 | 202,935 |
| European Countries in their Native Language | 0 | - | 4.99 | 145,525 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 390,476 |
| Denmark Country Quiz | 0 | - | 4.79 | 70,219 |
| Word Scramble - European Countries | 0 | - | 4.72 | 114,795 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 86,677 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 72,161 |
| Roman Emperors | 0 | - | 4.95 | 97,027 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 38,128 |
| British Groups of Things | 0 | - | 4.26 | 80,619 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 39,232 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,356 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 387,588 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.90 | 80,463 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 287,819 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 118,306 |
| Germany Multiple Choice | 0 | - | 4.81 | 49,864 |
| Top Five Countries By Category #2 | 0 | - | 4.92 | 158,764 |
| Top Five Countries By Category #3 | 0 | - | 4.85 | 144,171 |
| UK Cities Map Quiz | 0 | - | 4.95 | 436,665 |
| Champions League Winners | 0 | - | 4.91 | 878,315 |
| Celtic Nations | 0 | - | 4.76 | 44,960 |
| Europe Geography Quiz #1 | 0 | - | 4.53 | 67,467 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 67,937 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 66,616 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 58,204 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 4,581 |
| Four Letter European Geography #2 | 0 | - | 4.64 | 4,300 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 32,394 |
| Nordic Cities Map Quiz | 0 | - | 4.75 | 85,723 |
| Sweden Immigration by Country | 0 | - | 4.65 | 42,801 |
| Regions of Spain Quiz | 0 | - | 4.87 | 96,510 |
| Cantons of Switzerland | 0 | - | 4.97 | 41,040 |
| United Kingdom A-Z | 0 | - | 4.53 | 81,428 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 278,348 |
| Africa Geography Quiz #1 | 0 | - | 4.92 | 46,409 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 101,739 |
| Catholic Countries in Europe | 0 | - | 4.87 | 84,832 |
| Federal Subjects of Russia | 0 | - | 4.95 | 115,230 |
| France Immigration by Country | 0 | - | 4.81 | 69,751 |
| Countries Bordering France | 0 | - | 4.87 | 360,225 |
| States of Germany | 0 | - | 4.93 | 125,968 |
| Germany Immigration by Country | 0 | - | 4.90 | 70,766 |
| Countries Bordering Germany | 0 | - | 4.99 | 343,210 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,915 |
| Counties of Ireland | 0 | - | 4.90 | 162,094 |
| Regions of Italy | 0 | - | 4.89 | 61,501 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 164,871 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 79,071 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.82 | 48,295 |
| Top Five Countries By Fruit Production | 0 | - | 4.93 | 44,029 |
| Famous Nordic People | 0 | - | 4.41 | 10,706 |
| Finland Country Quiz | 0 | - | 4.48 | 53,515 |
| Iceland Country Quiz | 0 | - | 4.66 | 39,204 |
| Spain Cities Map Quiz | 0 | - | 4.86 | 87,218 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 170,909 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 94,787 |
| Fictional Characters from Great Britain | 0 | - | 4.10 | 31,305 |
| UK Immigration by Country | 0 | - | 4.94 | 126,508 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,843 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 120,605 |
| Robin Hood Quiz | 0 | - | 4.03 | 8,081 |
| British Monopoly Board | 0 | - | 4.51 | 39,396 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 101,622 |
| English Monarchs in Order by First Letter | 0 | - | 4.77 | 10,704 |
| English Monarchs Quiz | 0 | - | 4.91 | 451,717 |
| All Champions League Teams Ever | 0 | - | 4.90 | 106,999 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.91 | 94,238 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 83,579 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 80,661 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 148,553 |
| Europe Geography Quiz #3 | 0 | - | 4.32 | 60,311 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,248 |
| Austria... or Australia? | 0 | - | 4.79 | 98,708 |
| France Cities Map Quiz | 0 | - | 4.96 | 149,742 |
| Word Chain - France | 0 | - | 4.38 | 40,293 |
| Germany Country Quiz | 0 | - | 4.82 | 141,848 |
| Germany Cities Map Quiz | 0 | - | 4.84 | 107,233 |
| Ancient Greek Trivia | 0 | - | 4.55 | 63,717 |
| Italy Country Quiz | 0 | - | 4.81 | 110,488 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 135,316 |
| Italy Cities Map Quiz | 0 | - | 4.96 | 139,138 |
| Countries Italy Declared War On | 0 | - | 4.76 | 40,277 |
| Roman Names for Places | 0 | - | 4.66 | 42,011 |
| Countries Closest to Iceland | 0 | - | 4.87 | 63,645 |
| Spanish Immigration by Country | 0 | - | 4.63 | 52,327 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,785 |
| Countries Closest to Spain | 0 | - | 4.95 | 207,727 |
| Countries that Beat Spain | 0 | - | 4.95 | 56,359 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 66,088 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 63,671 |
| Counties of the UK and Ireland | 0 | - | 4.97 | 106,638 |
| Wonderwall Lyrics | 0 | - | 4.23 | 69,200 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 223,619 |
| World Capitals Closest to London | 0 | - | 4.91 | 94,219 |
| 50 Busiest Air Routes from London | 0 | - | 4.88 | 87,170 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 81,732 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.42 | 250,528 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 294,344 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,716 |
| Top 20 Football Clubs in Europe | 0 | - | 4.50 | 89,003 |
| Name a Major European City A-Z | 0 | - | 4.34 | 43,460 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 57,121 |
| Slavic Languages | 0 | - | 4.63 | 49,207 |
| Andorra Country Quiz | 0 | - | 4.87 | 28,256 |
| Countries Bordering Austria | 0 | - | 4.97 | 110,825 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 90,075 |
| Famous Dutch and Belgian People | 0 | - | 4.51 | 16,927 |
| Countries that Visit France the Most | 0 | - | 4.81 | 40,327 |
| Countries Closest to Metropolitan France | 0 | - | 4.87 | 66,757 |
| Countries With the Most German Speakers | 0 | - | 4.88 | 53,092 |
| The Trojan War | 0 | - | 4.80 | 36,224 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 589,765 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.55 | 56,622 |
| Ancient Greece - Multiple Choice | 0 | - | 4.53 | 38,946 |
| Iceland... or Ireland? | 0 | - | 4.72 | 54,342 |
| Countries Bordering Italy | 0 | - | 4.95 | 95,346 |
| Countries Closest to Italy | 0 | - | 4.97 | 181,061 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,604 |
| Geography of the Roman Empire | 0 | - | 4.57 | 48,796 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,610 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 33,618 |
| Sweden Country Quiz | 0 | - | 4.36 | 62,912 |
| Norway Country Quiz | 0 | - | 4.40 | 61,424 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 75,083 |
| Geography of Spain | 0 | - | 4.52 | 20,494 |
| Word Chain - United Kingdom | 0 | - | 4.04 | 28,129 |
| Members of the British Royal Family | 0 | - | 4.11 | 109,669 |
| Name a Valid English City | 0 | - | 4.16 | 15,438 |
| Sherlock Holmes Quiz | 0 | - | 4.48 | 20,847 |
| London A-Z | 0 | - | 4.19 | 38,684 |
| U.S. Groups of Four Quiz | 0 | - | 4.37 | 23,470 |
| U.S. Groups of Three Quiz | 0 | - | 4.05 | 19,627 |
| Top European Languages on a Map | 0 | - | 4.76 | 119,452 |
| Word Chain - Russia | 0 | - | 4.37 | 14,908 |
| Russia Multiple Choice | 0 | - | 4.55 | 38,376 |
| The Reign of Napoleon | 0 | - | 4.53 | 36,325 |
| Word Chain - Germany | 0 | - | 4.30 | 21,261 |
| Ancient Greece A-Z | 0 | - | 4.63 | 20,962 |
| Olympian Gods Quiz | 0 | - | 4.96 | 459,904 |
| Geography of Ancient Greece | 0 | - | 4.76 | 30,183 |
| Name that Greek Letter | 0 | - | 4.94 | 297,699 |
| Famous Irish People | 0 | - | 4.01 | 44,560 |
| Word Chain - Italy | 0 | - | 4.08 | 22,122 |
| Italy Multiple Choice | 0 | - | 4.74 | 94,964 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 49,324 |
| Provinces of the Netherlands | 0 | - | 4.65 | 33,811 |
| Switzerland A-Z | 0 | - | 4.40 | 18,577 |
| 100 Greatest Britons Quiz | 0 | - | 4.43 | 46,185 |
| British to American Food Translation. | 0 | - | 3.47 | 50,569 |
| British Acronyms | 0 | - | 4.41 | 43,584 |
| Foods in a Full English Breakfast | 0 | - | 4.42 | 74,302 |
| Beatles Songs Quiz | 0 | - | 4.95 | 210,900 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 275,718 |
| Famous Scottish People | 0 | - | 4.19 | 17,556 |
| Asia Geography Quiz #1 | 0 | - | 4.79 | 51,178 |
| Asia Geography Quiz #2 | 0 | - | 4.63 | 45,697 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 257,621 |
| Famous People from Africa | 0 | - | 4.44 | 10,322 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 247,432 |
| Word Chain - Africa | 0 | - | 4.43 | 29,895 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 23,273 |
| Name a Valid Answer - United States #1 | 0 | - | 4.65 | 87,069 |
| European Geography By Letter - A | 0 | - | 4.57 | 125,291 |
| European Geography By Letter - B #1 | 0 | - | 4.75 | 104,434 |
| European Geography By Letter - C | 0 | - | 4.43 | 105,638 |
| European Geography By Letter - D | 0 | - | 4.51 | 100,214 |
| European Geography By Letter - L | 0 | - | 4.51 | 105,773 |
| European Geography By Letter - M | 0 | - | 4.55 | 115,150 |
| European Geography By Letter - P | 0 | - | 4.79 | 90,296 |
| European Geography By Letter - N | 0 | - | 4.42 | 94,113 |
| European Geography By Letter - V | 0 | - | 4.45 | 86,960 |
| Europe Map Quiz | 0 | - | 5.00 | 4,333,607 |
| European Geography By Letter - S #1 | 0 | - | 4.58 | 94,422 |
| European Geography By Letter - B #2 | 0 | - | 4.72 | 62,769 |
| Famous Swiss and Austrian People | 0 | - | 4.36 | 13,713 |
| Regions of France | 0 | - | 4.63 | 102,036 |
| France A-Z | 0 | - | 4.17 | 25,847 |
| Capitals of German States | 0 | - | 4.70 | 27,367 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 20,375 |
| Germany True or False? | 0 | - | 4.60 | 44,894 |
| Largest Islands of Greece | 0 | - | 4.58 | 40,650 |
| The Life of Alexander the Great | 0 | - | 4.51 | 17,537 |
| Ancient Greek Words | 0 | - | 4.90 | 98,718 |
| Capitals of Italian Regions | 0 | - | 4.53 | 26,310 |
| Seven Hills of Rome | 0 | - | 4.68 | 8,591 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 402,835 |
