| Germany Multiple Choice | 0 | - | 4.84 | 54,131 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,660 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,993 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,524 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,419 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,520 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,067 |
| States of Germany | 0 | - | 4.96 | 150,675 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,212 |
| Famous Germans | 0 | - | 4.50 | 54,745 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,145 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,634 |
| Departments of France | 0 | - | 4.93 | 53,073 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,409 |
| Name the English Monarchs | 0 | - | 4.92 | 499,143 |
| England or Wales? | 0 | - | 4.94 | 45,420 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,743 |
| Official European Union Languages | 0 | - | 4.97 | 237,317 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,124 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,926 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,573 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,354 |
| The Trojan War | 0 | - | 4.83 | 39,502 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,908 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,177 |
| Roman Emperors | 0 | - | 4.95 | 118,837 |
| British Monopoly Board | 0 | - | 4.52 | 41,077 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,639 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,624 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,985 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,762 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,847 |
| France A-Z | 0 | - | 4.16 | 38,094 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,384 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,266 |
| Celtic Nations | 0 | - | 4.69 | 46,843 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,586 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,047 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,013 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,892 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,367 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,157 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,967 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,740 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,114 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,476 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,716 |
| German Groups of Things | 0 | - | 4.46 | 38,350 |
| Capitals of German States | 0 | - | 4.74 | 28,868 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,153 |
| Germany True or False? | 0 | - | 4.61 | 48,606 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,043 |
| Famous Irish People | 0 | - | 4.05 | 45,885 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,733 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,105 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,799 |
| British Geography A-Z | 0 | - | 4.41 | 19,446 |
| London A-Z | 0 | - | 4.10 | 40,674 |
| Champions League Winners | 0 | - | 4.92 | 998,733 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,580 |
| Monarchies of Europe | 0 | - | 4.90 | 97,534 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,754 |
| Countries Bordering France | 0 | - | 4.83 | 400,569 |
| Kings of France Quiz | 0 | - | 4.20 | 32,597 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,410 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,590 |
| Regions of Italy | 0 | - | 4.92 | 74,986 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,991 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,764 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,826 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,538 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,582 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,119 |
| Monarchies of Asia | 0 | - | 4.97 | 70,723 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,538 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,308 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,268 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,606 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,352 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,789 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,028 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,646 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,613 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,298 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,028 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,369 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,592 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,437 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,315 |
| European Geography A-Z | 0 | - | 4.28 | 49,063 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,229 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,725 |
| Austria... or Australia? | 0 | - | 4.68 | 104,004 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,459 |
| Germany Country Quiz | 0 | - | 4.82 | 156,875 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,391 |
| German History A-Z | 0 | - | 4.49 | 24,476 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,829 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,807 |
| Italy Country Quiz | 0 | - | 4.82 | 122,468 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,641 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,306 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,071 |
| The Mafia Quiz | 0 | - | 4.46 | 23,224 |
| History of The Netherlands | 0 | - | 4.46 | 17,346 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,261 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,858 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,235 |
| British Acronyms | 0 | - | 4.39 | 45,668 |
| UK Immigration by Country | 0 | - | 4.94 | 139,934 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,562 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,595 |
| Famous Scottish People | 0 | - | 4.22 | 18,343 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,879 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,591 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,000 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,807 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.91 | 80,234 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,544 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,485 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,614 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,133 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,504 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,235 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,004 |
| Slavic Languages | 0 | - | 4.68 | 54,082 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,474 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,572 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,934 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,971 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,984 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,629 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,900 |
| Geography of Germany | 0 | - | 4.35 | 17,117 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,644 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,925 |
| History of Germany | 0 | - | 4.39 | 52,674 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,432 |
| Name that Greek Letter | 0 | - | 4.94 | 322,132 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,099 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,497 |
| Counties of Ireland | 0 | - | 4.92 | 193,630 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,486 |
| Italian History A-Z | 0 | - | 4.21 | 17,598 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,571 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,029 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,665 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,588 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,740 |
| Roman Names for Places | 0 | - | 4.62 | 57,975 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,296 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,508 |
| Spanish History A-Z | 0 | - | 4.37 | 19,199 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,964 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,581 |
| Switzerland A-Z | 0 | - | 4.45 | 25,544 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,509 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,947 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,507 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,122 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,521 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,645 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,651 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,393 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,936 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,912 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,078 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,910 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,490 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,638 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,391 |
| History of Russia Quiz | 0 | - | 4.49 | 31,820 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,610 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,127 |
| Famous French People | 0 | - | 4.12 | 28,076 |
| French History A-Z | 0 | - | 4.22 | 24,168 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,777 |
| Word Chain - Germany | 0 | - | 4.31 | 22,502 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,501 |
| History of Italy | 0 | - | 4.55 | 31,865 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,329 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,524 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,313 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,557 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,040 |
| Geography of Spain | 0 | - | 4.59 | 21,999 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,485 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,864 |
| People on Money - England | 0 | - | 4.29 | 16,577 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,441 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,593 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,081 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,866 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,949 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,858 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,663 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,450 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,060 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,702 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,016 |
