| Germany Multiple Choice | 0 | - | 4.84 | 54,145 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,687 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,231 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,541 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,461 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,561 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,153 |
| States of Germany | 0 | - | 4.96 | 150,772 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,249 |
| Famous Germans | 0 | - | 4.50 | 54,767 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,333 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,768 |
| Departments of France | 0 | - | 4.93 | 53,125 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,412 |
| Name the English Monarchs | 0 | - | 4.92 | 499,367 |
| England or Wales? | 0 | - | 4.94 | 45,443 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,776 |
| Official European Union Languages | 0 | - | 4.97 | 237,408 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,176 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,071 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,598 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,368 |
| The Trojan War | 0 | - | 4.83 | 39,518 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,969 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,195 |
| Roman Emperors | 0 | - | 4.95 | 118,980 |
| British Monopoly Board | 0 | - | 4.52 | 41,082 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,688 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,637 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,014 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,933 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,008 |
| France A-Z | 0 | - | 4.16 | 38,100 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,713 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,284 |
| Celtic Nations | 0 | - | 4.69 | 46,855 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,601 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,067 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,036 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,913 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,382 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,189 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,973 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,748 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,122 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,500 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,724 |
| German Groups of Things | 0 | - | 4.46 | 38,356 |
| Capitals of German States | 0 | - | 4.74 | 28,876 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,166 |
| Germany True or False? | 0 | - | 4.61 | 48,617 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,056 |
| Famous Irish People | 0 | - | 4.05 | 45,894 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,762 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,117 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,923 |
| British Geography A-Z | 0 | - | 4.41 | 19,451 |
| London A-Z | 0 | - | 4.10 | 40,679 |
| Champions League Winners | 0 | - | 4.92 | 999,313 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,642 |
| Monarchies of Europe | 0 | - | 4.90 | 97,568 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,893 |
| Countries Bordering France | 0 | - | 4.83 | 400,727 |
| Kings of France Quiz | 0 | - | 4.20 | 32,607 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,413 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,678 |
| Regions of Italy | 0 | - | 4.92 | 75,021 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,019 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,783 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,925 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,611 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,592 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,133 |
| Monarchies of Asia | 0 | - | 4.97 | 70,751 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,558 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,413 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,333 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,616 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,373 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,800 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,041 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,662 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,621 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,309 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,036 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,376 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,603 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,480 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,364 |
| European Geography A-Z | 0 | - | 4.28 | 49,080 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,255 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,839 |
| Austria... or Australia? | 0 | - | 4.68 | 104,031 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,543 |
| Germany Country Quiz | 0 | - | 4.82 | 156,971 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,436 |
| German History A-Z | 0 | - | 4.49 | 24,488 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,841 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,818 |
| Italy Country Quiz | 0 | - | 4.82 | 122,539 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,701 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,345 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,089 |
| The Mafia Quiz | 0 | - | 4.46 | 23,227 |
| History of The Netherlands | 0 | - | 4.46 | 17,350 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,295 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,905 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,293 |
| British Acronyms | 0 | - | 4.39 | 45,673 |
| UK Immigration by Country | 0 | - | 4.94 | 139,981 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,659 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,661 |
| Famous Scottish People | 0 | - | 4.22 | 18,345 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,989 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,616 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,090 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,873 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 80,862 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,595 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,490 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,617 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,183 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,616 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,254 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,032 |
| Slavic Languages | 0 | - | 4.68 | 54,099 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,490 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,578 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,951 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,026 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,989 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,646 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,933 |
| Geography of Germany | 0 | - | 4.35 | 17,121 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,698 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,052 |
| History of Germany | 0 | - | 4.39 | 52,689 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,673 |
| Name that Greek Letter | 0 | - | 4.94 | 322,222 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,131 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,509 |
| Counties of Ireland | 0 | - | 4.92 | 193,728 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,496 |
| Italian History A-Z | 0 | - | 4.21 | 17,607 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,587 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,051 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,736 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,595 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,745 |
| Roman Names for Places | 0 | - | 4.62 | 57,992 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,309 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,512 |
| Spanish History A-Z | 0 | - | 4.37 | 19,209 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,038 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,606 |
| Switzerland A-Z | 0 | - | 4.45 | 25,553 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,520 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,953 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,547 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,211 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,542 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,710 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,660 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,402 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,967 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,934 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,111 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,950 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,518 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,652 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,443 |
| History of Russia Quiz | 0 | - | 4.49 | 31,828 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,615 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,135 |
| Famous French People | 0 | - | 4.12 | 28,093 |
| French History A-Z | 0 | - | 4.22 | 24,240 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,793 |
| Word Chain - Germany | 0 | - | 4.31 | 22,509 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,682 |
| History of Italy | 0 | - | 4.55 | 31,873 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,359 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,536 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,319 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,558 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,056 |
| Geography of Spain | 0 | - | 4.59 | 22,005 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,489 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,872 |
| People on Money - England | 0 | - | 4.29 | 16,580 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,459 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,596 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,099 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,048 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,966 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,878 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,696 |
| Europe Map Quiz | 0 | - | 5.00 | 4,740,969 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,079 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,720 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,030 |
