| Germany Multiple Choice | 0 | - | 4.84 | 54,481 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,200 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,612 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,938 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,395 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 86,796 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,319 |
| States of Germany | 0 | - | 4.95 | 153,228 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,290 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,609 |
| Famous Germans | 0 | - | 4.50 | 55,536 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,939 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,643 |
| Departments of France | 0 | - | 4.93 | 54,474 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,618 |
| Name the English Monarchs | 0 | - | 4.91 | 504,000 |
| England or Wales? | 0 | - | 4.94 | 45,804 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,333 |
| Official European Union Languages | 0 | - | 4.97 | 238,938 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,140 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,081 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,857 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,160 |
| The Trojan War | 0 | - | 4.83 | 39,799 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,259 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,655 |
| Roman Emperors | 0 | - | 4.95 | 120,406 |
| British Monopoly Board | 0 | - | 4.52 | 41,194 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,114 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,916 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,541 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,279 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,087 |
| France A-Z | 0 | - | 4.16 | 38,269 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,230 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,431 |
| Celtic Nations | 0 | - | 4.69 | 46,997 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,982 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,379 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,778 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,330 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,997 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,330 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,206 |
| European Geography By Letter - R | 0 | - | 4.42 | 94,013 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,287 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,839 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,889 |
| German Groups of Things | 0 | - | 4.46 | 38,526 |
| Capitals of German States | 0 | - | 4.74 | 28,990 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,402 |
| Germany True or False? | 0 | - | 4.61 | 48,893 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,177 |
| Famous Irish People | 0 | - | 4.05 | 46,024 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,811 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,340 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,183 |
| British Geography A-Z | 0 | - | 4.42 | 19,561 |
| London A-Z | 0 | - | 4.10 | 40,815 |
| Champions League Winners | 0 | - | 4.92 | 1,009,974 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,763 |
| Monarchies of Europe | 0 | - | 4.90 | 98,355 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,027 |
| Countries Bordering France | 0 | - | 4.83 | 403,578 |
| Kings of France Quiz | 0 | - | 4.20 | 32,818 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,702 |
| Regions of Italy | 0 | - | 4.92 | 76,248 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,431 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,213 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,421 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,419 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,756 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,717 |
| Monarchies of Asia | 0 | - | 4.97 | 71,228 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,028 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,388 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,941 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,262 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,617 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,465 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,153 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,894 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,533 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,013 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,147 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,442 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,365 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,269 |
| European Geography A-Z | 0 | - | 4.29 | 49,366 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,590 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,390 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,779 |
| Austria... or Australia? | 0 | - | 4.68 | 104,507 |
| Famous French People | 0 | - | 4.07 | 35,859 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,170 |
| Germany Country Quiz | 0 | - | 4.83 | 158,191 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,633 |
| German History A-Z | 0 | - | 4.49 | 24,665 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,079 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,947 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,668 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,611 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,420 |
| The Mafia Quiz | 0 | - | 4.46 | 23,371 |
| History of The Netherlands | 0 | - | 4.46 | 17,484 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,121 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,231 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,270 |
| British Acronyms | 0 | - | 4.40 | 45,852 |
| UK Immigration by Country | 0 | - | 4.94 | 141,171 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,192 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,991 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,941 |
| Famous Scottish People | 0 | - | 4.22 | 18,415 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,009 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,515 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,358 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,102 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,611 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,455 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,094 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,647 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,675 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,884 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,627 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,657 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,646 |
| Slavic Languages | 0 | - | 4.68 | 54,469 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,646 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,667 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,095 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,091 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,969 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,286 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,507 |
| Geography of Germany | 0 | - | 4.35 | 17,207 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,746 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,383 |
| History of Germany | 0 | - | 4.39 | 52,899 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,932 |
| Name that Greek Letter | 0 | - | 4.93 | 324,182 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,904 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,712 |
| Counties of Ireland | 0 | - | 4.92 | 196,073 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,665 |
| Italian History A-Z | 0 | - | 4.21 | 17,741 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,025 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,654 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,360 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,792 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,993 |
| Roman Names for Places | 0 | - | 4.62 | 58,403 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,515 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,657 |
| Spanish History A-Z | 0 | - | 4.37 | 19,323 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,374 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,070 |
| Switzerland A-Z | 0 | - | 4.45 | 25,689 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,765 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,047 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,384 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,287 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,880 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,697 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,847 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,779 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,805 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,010 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,327 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,957 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,866 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,012 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,362 |
| History of Russia Quiz | 0 | - | 4.47 | 31,952 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,778 |
| Russian History A-Z | 0 | - | 4.35 | 31,870 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,261 |
| French History A-Z | 0 | - | 4.27 | 24,766 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,029 |
| Word Chain - Germany | 0 | - | 4.31 | 22,617 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,933 |
| History of Italy | 0 | - | 4.55 | 32,054 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,967 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,721 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,436 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,624 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,298 |
| Geography of Spain | 0 | - | 4.59 | 22,107 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,546 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,352 |
| People on Money - England | 0 | - | 4.29 | 16,625 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,692 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,497 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,266 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,293 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,352 |
| Europe Map Quiz | 0 | - | 5.00 | 4,771,547 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,355 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,012 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,302 |
