| Germany Multiple Choice | 0 | - | 4.84 | 54,775 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,534 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,264 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,267 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,935 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,319 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,236 |
| States of Germany | 0 | - | 4.95 | 155,056 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,859 |
| Famous Germans | 0 | - | 4.50 | 55,899 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,496 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,398 |
| Departments of France | 0 | - | 4.93 | 55,476 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,795 |
| Name the English Monarchs | 0 | - | 4.91 | 507,671 |
| England or Wales? | 0 | - | 4.94 | 46,093 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,888 |
| Official European Union Languages | 0 | - | 4.97 | 240,468 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,889 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,571 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,322 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,502 |
| The Trojan War | 0 | - | 4.83 | 40,123 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,359 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,732 |
| Roman Emperors | 0 | - | 4.95 | 121,523 |
| British Monopoly Board | 0 | - | 4.52 | 41,301 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,413 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,121 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,173 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,344 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,771 |
| France A-Z | 0 | - | 4.16 | 38,371 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,058 |
| Celtic Nations | 0 | - | 4.61 | 47,131 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,541 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,987 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,541 |
| European Geography By Letter - D | 0 | - | 4.49 | 119,101 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,484 |
| European Geography By Letter - M | 0 | - | 4.70 | 133,016 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,423 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,999 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,273 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,911 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,657 |
| German Groups of Things | 0 | - | 4.47 | 38,684 |
| Capitals of German States | 0 | - | 4.74 | 29,102 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,602 |
| Germany True or False? | 0 | - | 4.61 | 49,090 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,264 |
| Famous Irish People | 0 | - | 4.05 | 46,087 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,586 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,519 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,965 |
| British Geography A-Z | 0 | - | 4.42 | 19,636 |
| London A-Z | 0 | - | 4.10 | 40,919 |
| Champions League Winners | 0 | - | 4.92 | 1,018,646 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,543 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,042 |
| Monarchies of Europe | 0 | - | 4.90 | 99,090 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,036 |
| Countries Bordering France | 0 | - | 4.83 | 405,507 |
| Kings of France Quiz | 0 | - | 4.22 | 32,976 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,581 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,376 |
| Regions of Italy | 0 | - | 4.92 | 77,319 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,969 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,454 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,681 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,963 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,879 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,182 |
| Monarchies of Asia | 0 | - | 4.97 | 71,648 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,388 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 93,001 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,199 |
| European Geography By Letter - E | 0 | - | 4.25 | 122,273 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,870 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,528 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,323 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,849 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,498 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,840 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,766 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 52,080 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,143 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,038 |
| European Geography A-Z | 0 | - | 4.29 | 49,537 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,843 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,468 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,024 |
| Austria... or Australia? | 0 | - | 4.67 | 104,878 |
| Famous French People | 0 | - | 4.05 | 36,195 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,091 |
| Germany Country Quiz | 0 | - | 4.82 | 159,157 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,313 |
| German History A-Z | 0 | - | 4.49 | 24,956 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,303 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,488 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,291 |
| Countries Italy Declared War On | 0 | - | 4.77 | 50,190 |
| The Mafia Quiz | 0 | - | 4.46 | 23,455 |
| History of The Netherlands | 0 | - | 4.46 | 17,580 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,655 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,094 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,181 |
| British Acronyms | 0 | - | 4.40 | 45,994 |
| UK Immigration by Country | 0 | - | 4.94 | 141,950 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,381 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,133 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,242 |
| Famous Scottish People | 0 | - | 4.22 | 18,445 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,606 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,841 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,644 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 98,006 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,660 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 95,791 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,093 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,814 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,742 |
| Word Scramble - European Countries | 0 | - | 4.72 | 142,490 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,643 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,950 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,092 |
| Slavic Languages | 0 | - | 4.67 | 54,803 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,690 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,082 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 105,063 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,170 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,254 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,599 |
| Geography of Germany | 0 | - | 4.36 | 17,451 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,565 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,300 |
| History of Germany | 0 | - | 4.39 | 53,010 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,371 |
| Name that Greek Letter | 0 | - | 4.93 | 325,406 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,544 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,909 |
| Counties of Ireland | 0 | - | 4.92 | 197,788 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,765 |
| Italian History A-Z | 0 | - | 4.16 | 17,963 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,405 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,790 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,417 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,282 |
| Roman Names for Places | 0 | - | 4.62 | 58,818 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,671 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,410 |
| Spanish History A-Z | 0 | - | 4.37 | 19,543 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,475 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,466 |
| Switzerland A-Z | 0 | - | 4.45 | 25,803 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 70,050 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,117 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 76,064 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,741 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,173 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,675 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,011 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,047 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,463 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,456 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 126,108 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,761 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,118 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,307 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,058 |
| History of Russia Quiz | 0 | - | 4.47 | 32,032 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,912 |
| Russian History A-Z | 0 | - | 4.35 | 32,328 |
| French History A-Z | 0 | - | 4.27 | 25,214 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,242 |
| Word Chain - Germany | 0 | - | 4.31 | 22,704 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,725 |
| History of Italy | 0 | - | 4.55 | 32,199 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,570 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,867 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,507 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,652 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,482 |
| Geography of Spain | 0 | - | 4.59 | 22,302 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,585 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,554 |
| People on Money - England | 0 | - | 4.30 | 21,254 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,740 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,884 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,492 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,618 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,869 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,256 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,591 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,263 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,533 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,489 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,270 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,641 |
