| 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 | 533,274 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,279 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,937 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,337 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,239 |
| States of Germany | 0 | - | 4.95 | 155,064 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,862 |
| Famous Germans | 0 | - | 4.50 | 55,901 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,509 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,406 |
| Departments of France | 0 | - | 4.93 | 55,483 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,796 |
| Name the English Monarchs | 0 | - | 4.91 | 507,693 |
| England or Wales? | 0 | - | 4.94 | 46,095 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,888 |
| Official European Union Languages | 0 | - | 4.97 | 240,472 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,893 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,596 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,322 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,504 |
| The Trojan War | 0 | - | 4.83 | 40,125 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,364 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,734 |
| Roman Emperors | 0 | - | 4.95 | 121,525 |
| British Monopoly Board | 0 | - | 4.52 | 41,301 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,415 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,121 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,177 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,352 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,790 |
| France A-Z | 0 | - | 4.16 | 38,371 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,085 |
| Celtic Nations | 0 | - | 4.61 | 47,131 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,555 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 122,004 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,555 |
| European Geography By Letter - D | 0 | - | 4.49 | 119,119 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,497 |
| European Geography By Letter - M | 0 | - | 4.70 | 133,030 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,430 |
| European Geography By Letter - R | 0 | - | 4.43 | 95,008 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,283 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,921 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,666 |
| 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 | 49,092 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,264 |
| Famous Irish People | 0 | - | 4.05 | 46,087 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,589 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,519 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,975 |
| British Geography A-Z | 0 | - | 4.42 | 19,637 |
| London A-Z | 0 | - | 4.10 | 40,919 |
| Champions League Winners | 0 | - | 4.92 | 1,018,703 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,544 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,045 |
| Monarchies of Europe | 0 | - | 4.90 | 99,099 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,045 |
| Countries Bordering France | 0 | - | 4.83 | 405,515 |
| Kings of France Quiz | 0 | - | 4.22 | 32,978 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,581 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,383 |
| Regions of Italy | 0 | - | 4.92 | 77,330 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,972 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,454 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,688 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,970 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,879 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,184 |
| Monarchies of Asia | 0 | - | 4.97 | 71,649 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,390 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 93,006 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,200 |
| European Geography By Letter - E | 0 | - | 4.25 | 122,463 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,882 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,537 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,335 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,862 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,508 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,848 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,772 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 52,089 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,147 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,040 |
| European Geography A-Z | 0 | - | 4.29 | 49,538 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,845 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,474 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,025 |
| Austria... or Australia? | 0 | - | 4.67 | 104,882 |
| Famous French People | 0 | - | 4.05 | 36,201 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,113 |
| Germany Country Quiz | 0 | - | 4.82 | 159,166 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,314 |
| 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 | 150,504 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,298 |
| Countries Italy Declared War On | 0 | - | 4.77 | 50,393 |
| The Mafia Quiz | 0 | - | 4.46 | 23,455 |
| History of The Netherlands | 0 | - | 4.46 | 17,582 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,661 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,096 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,188 |
| British Acronyms | 0 | - | 4.40 | 45,995 |
| UK Immigration by Country | 0 | - | 4.94 | 141,955 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,384 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,135 |
| 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 | 132,616 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,843 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,650 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 98,011 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,665 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 95,798 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,097 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,814 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,743 |
| Word Scramble - European Countries | 0 | - | 4.72 | 142,491 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,692 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,953 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,094 |
| Slavic Languages | 0 | - | 4.67 | 54,807 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,690 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,086 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 105,066 |
| 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 | 72,601 |
| Geography of Germany | 0 | - | 4.36 | 17,452 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,572 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,310 |
| History of Germany | 0 | - | 4.39 | 53,011 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,394 |
| Name that Greek Letter | 0 | - | 4.93 | 325,411 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,549 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,910 |
| Counties of Ireland | 0 | - | 4.92 | 197,793 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,765 |
| Italian History A-Z | 0 | - | 4.16 | 17,964 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,406 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,800 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,417 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,283 |
| Roman Names for Places | 0 | - | 4.62 | 58,820 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,671 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,413 |
| Spanish History A-Z | 0 | - | 4.37 | 19,543 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,478 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,467 |
| Switzerland A-Z | 0 | - | 4.45 | 25,804 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 70,051 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,117 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 76,070 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,750 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,176 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,678 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,012 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,049 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,464 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,460 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 126,109 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,763 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,119 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,309 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,059 |
| History of Russia Quiz | 0 | - | 4.47 | 32,032 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,913 |
| Russian History A-Z | 0 | - | 4.35 | 32,330 |
| French History A-Z | 0 | - | 4.27 | 25,215 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,244 |
| Word Chain - Germany | 0 | - | 4.31 | 22,704 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,740 |
| History of Italy | 0 | - | 4.55 | 32,199 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,572 |
| 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 | 77,483 |
| Geography of Spain | 0 | - | 4.59 | 22,302 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,586 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,555 |
| People on Money - England | 0 | - | 4.30 | 21,286 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,740 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,889 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,493 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,618 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,872 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,400 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,594 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,267 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,535 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,492 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,272 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,643 |
