| Countries Surrounding Rome | 0 | - | 4.97 | 49,605 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,636 |
| Roman Emperors | 0 | - | 4.95 | 120,334 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,401 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,351 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 84,263 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,239 |
| Regions of Italy | 0 | - | 4.92 | 76,195 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,414 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,731 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,817 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,546 |
| Departments of France | 0 | - | 4.93 | 54,410 |
| Name the English Monarchs | 0 | - | 4.91 | 503,739 |
| England or Wales? | 0 | - | 4.94 | 45,783 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,302 |
| Official European Union Languages | 0 | - | 4.97 | 238,853 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,088 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,887 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,845 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,136 |
| The Trojan War | 0 | - | 4.83 | 39,787 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,172 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,654 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,402 |
| British Monopoly Board | 0 | - | 4.52 | 41,190 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,088 |
| History of Italy | 0 | - | 4.55 | 32,045 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,927 |
| The Mafia Quiz | 0 | - | 4.46 | 23,364 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,783 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,986 |
| Roman Names for Places | 0 | - | 4.62 | 58,388 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,898 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,509 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,135 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,740 |
| France A-Z | 0 | - | 4.16 | 38,259 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,447 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,166 |
| Italian History A-Z | 0 | - | 4.21 | 17,736 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,899 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,419 |
| Celtic Nations | 0 | - | 4.69 | 46,985 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,769 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,184 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,530 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,110 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,848 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,126 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,809 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,094 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,909 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,196 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,717 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,799 |
| Famous Germans | 0 | - | 4.50 | 55,499 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,168 |
| Famous Irish People | 0 | - | 4.05 | 46,019 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,839 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,259 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,333 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,043 |
| British Geography A-Z | 0 | - | 4.42 | 19,552 |
| London A-Z | 0 | - | 4.10 | 40,810 |
| Champions League Winners | 0 | - | 4.91 | 1,009,436 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,709 |
| Monarchies of Europe | 0 | - | 4.90 | 98,321 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,919 |
| Countries Bordering France | 0 | - | 4.83 | 403,429 |
| Kings of France Quiz | 0 | - | 4.20 | 32,805 |
| States of Germany | 0 | - | 4.95 | 153,086 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,247 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,529 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,202 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,386 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,203 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,316 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,379 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,740 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,656 |
| Monarchies of Asia | 0 | - | 4.97 | 71,196 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,993 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,560 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,352 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,928 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,114 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,481 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,343 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,030 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,782 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,420 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,921 |
| European Geography by Letter - W | 0 | - | 4.20 | 83,075 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,358 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,275 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,207 |
| European Geography A-Z | 0 | - | 4.29 | 49,350 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,563 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,293 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,756 |
| Austria... or Australia? | 0 | - | 4.68 | 104,482 |
| Famous French People | 0 | - | 4.07 | 35,817 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,080 |
| Germany Country Quiz | 0 | - | 4.83 | 158,131 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,576 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,064 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,945 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,617 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,274 |
| Italian Foods | 0 | - | 4.30 | 72,912 |
| History of The Netherlands | 0 | - | 4.46 | 17,474 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,085 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,114 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,226 |
| British Acronyms | 0 | - | 4.40 | 45,841 |
| UK Immigration by Country | 0 | - | 4.94 | 141,120 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,119 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,933 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,922 |
| Famous Scottish People | 0 | - | 4.22 | 18,411 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,923 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,078 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,301 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,047 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,362 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,029 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,636 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,670 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,845 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,519 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,629 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,592 |
| Slavic Languages | 0 | - | 4.68 | 54,454 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,640 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,630 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,045 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,084 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,953 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,266 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,344 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,693 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,253 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,170 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,647 |
| Name that Greek Letter | 0 | - | 4.93 | 324,108 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,852 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,701 |
| Counties of Ireland | 0 | - | 4.92 | 195,923 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,004 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,627 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,294 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,482 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,510 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,646 |
| Spanish History A-Z | 0 | - | 4.37 | 19,320 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,311 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,047 |
| Switzerland A-Z | 0 | - | 4.45 | 25,680 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,752 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,039 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,333 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,199 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,849 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,647 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,838 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,748 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,780 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,973 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,252 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,889 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,844 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,982 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,302 |
| History of Russia Quiz | 0 | - | 4.47 | 31,945 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,769 |
| Russian History A-Z | 0 | - | 4.35 | 31,834 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,256 |
| French History A-Z | 0 | - | 4.27 | 24,748 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,017 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,721 |
| Word Chain - Italy | 0 | - | 4.07 | 23,179 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,123 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,714 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,430 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,622 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,291 |
| Geography of Spain | 0 | - | 4.59 | 22,101 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,544 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,336 |
| People on Money - England | 0 | - | 4.29 | 16,623 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,687 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,461 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,541 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,245 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,279 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,323 |
| Europe Map Quiz | 0 | - | 5.00 | 4,769,629 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,342 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,999 |
