| Germany Multiple Choice | 0 | - | 4.84 | 54,198 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,745 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,820 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,623 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,599 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,690 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,343 |
| States of Germany | 0 | - | 4.96 | 151,098 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,519 |
| Famous Germans | 0 | - | 4.50 | 54,841 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,805 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,091 |
| Departments of France | 0 | - | 4.93 | 53,315 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,442 |
| Name the English Monarchs | 0 | - | 4.92 | 500,134 |
| England or Wales? | 0 | - | 4.94 | 45,492 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,855 |
| Official European Union Languages | 0 | - | 4.97 | 237,672 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,318 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,575 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,635 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,446 |
| The Trojan War | 0 | - | 4.83 | 39,569 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,175 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,288 |
| Roman Emperors | 0 | - | 4.95 | 119,247 |
| British Monopoly Board | 0 | - | 4.52 | 41,099 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,747 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,669 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,107 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,349 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,487 |
| France A-Z | 0 | - | 4.16 | 38,113 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,550 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,316 |
| Celtic Nations | 0 | - | 4.69 | 46,873 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,687 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,137 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,113 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,992 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,447 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,333 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,031 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,809 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,443 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,614 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,800 |
| German Groups of Things | 0 | - | 4.46 | 38,382 |
| Capitals of German States | 0 | - | 4.74 | 28,894 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,203 |
| Germany True or False? | 0 | - | 4.61 | 48,664 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,082 |
| Famous Irish People | 0 | - | 4.05 | 45,907 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,887 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,156 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,297 |
| British Geography A-Z | 0 | - | 4.41 | 19,467 |
| London A-Z | 0 | - | 4.10 | 40,699 |
| Champions League Winners | 0 | - | 4.92 | 1,000,760 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,832 |
| Monarchies of Europe | 0 | - | 4.90 | 97,704 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,326 |
| Countries Bordering France | 0 | - | 4.83 | 401,144 |
| Kings of France Quiz | 0 | - | 4.20 | 32,631 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,015 |
| Regions of Italy | 0 | - | 4.92 | 75,219 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 48,473 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,880 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,189 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,751 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,620 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,175 |
| Monarchies of Asia | 0 | - | 4.97 | 70,835 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,633 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,784 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,466 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,683 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,441 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,860 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,106 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,726 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,678 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,362 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,090 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,432 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,650 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,642 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,501 |
| European Geography A-Z | 0 | - | 4.29 | 49,114 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,296 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,740 |
| Austria... or Australia? | 0 | - | 4.68 | 104,108 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,742 |
| Germany Country Quiz | 0 | - | 4.82 | 157,190 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,564 |
| German History A-Z | 0 | - | 4.49 | 24,518 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,871 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,842 |
| Italy Country Quiz | 0 | - | 4.82 | 122,689 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,841 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,470 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,152 |
| The Mafia Quiz | 0 | - | 4.46 | 23,252 |
| History of The Netherlands | 0 | - | 4.46 | 17,362 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,432 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,047 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,436 |
| British Acronyms | 0 | - | 4.39 | 45,705 |
| UK Immigration by Country | 0 | - | 4.94 | 140,365 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,974 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,869 |
| Famous Scottish People | 0 | - | 4.22 | 18,359 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,260 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,686 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,330 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,055 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 81,978 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,793 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,510 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,627 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,300 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,855 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,316 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,134 |
| Slavic Languages | 0 | - | 4.68 | 54,152 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,536 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,589 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,031 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,193 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,001 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,699 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,978 |
| Geography of Germany | 0 | - | 4.35 | 17,137 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,823 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,427 |
| History of Germany | 0 | - | 4.39 | 52,726 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,655 |
| Name that Greek Letter | 0 | - | 4.93 | 322,556 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,259 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,540 |
| Counties of Ireland | 0 | - | 4.92 | 194,046 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,525 |
| Italian History A-Z | 0 | - | 4.21 | 17,627 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,638 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,126 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,913 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,631 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,791 |
| Roman Names for Places | 0 | - | 4.62 | 58,061 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,358 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,540 |
| Spanish History A-Z | 0 | - | 4.37 | 19,224 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,236 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,661 |
| Switzerland A-Z | 0 | - | 4.45 | 25,579 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,569 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,969 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,666 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,495 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,579 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,880 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,688 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,470 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,061 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,009 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,224 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,087 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,569 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,697 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,582 |
| History of Russia Quiz | 0 | - | 4.49 | 31,845 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,642 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,157 |
| Famous French People | 0 | - | 4.12 | 28,140 |
| French History A-Z | 0 | - | 4.22 | 24,397 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,828 |
| Word Chain - Germany | 0 | - | 4.31 | 22,527 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,439 |
| History of Italy | 0 | - | 4.55 | 31,900 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,443 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,568 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,338 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,567 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,094 |
| Geography of Spain | 0 | - | 4.59 | 22,019 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,499 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,915 |
| People on Money - England | 0 | - | 4.29 | 16,590 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,507 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,606 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,161 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,402 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,015 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,944 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,794 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,157 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,136 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,777 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,080 |
