| Regions of Italy | 0 | - | 4.92 | 74,596 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,342 |
| German Groups of Things | 0 | - | 4.46 | 38,290 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 525,999 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,041 |
| States of Germany | 0 | - | 4.96 | 149,768 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,906 |
| Italian Foods | 0 | - | 4.30 | 72,118 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,731 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,137 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,052 |
| British Groups of Things | 0 | - | 4.25 | 82,656 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,213 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 273,970 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,903 |
| Departments of France | 0 | - | 4.93 | 52,654 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,242 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,854 |
| England or Wales? | 0 | - | 4.94 | 45,280 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,520 |
| Official European Union Languages | 0 | - | 4.97 | 236,341 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,600 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,830 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,485 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,404 |
| Word Chain - Italy | 0 | - | 4.07 | 23,077 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,481 |
| Word Chain - France | 0 | - | 4.38 | 42,567 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,538 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,386 |
| The Mafia Quiz | 0 | - | 4.46 | 23,194 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,975 |
| Roman Emperors | 0 | - | 4.95 | 118,283 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,525 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,940 |
| History of Italy | 0 | - | 4.55 | 31,800 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,083 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,225 |
| Celtic Nations | 0 | - | 4.69 | 46,796 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,960 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,577 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,579 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,908 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,946 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,778 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,562 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,525 |
| Regions of France | 0 | - | 4.78 | 119,033 |
| France Immigration by Country | 0 | - | 4.72 | 75,912 |
| Famous Germans | 0 | - | 4.50 | 54,558 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,009 |
| Germany True or False? | 0 | - | 4.61 | 48,503 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,381 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,720 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,460 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,024 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,418 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,903 |
| Counties of England | 0 | - | 4.97 | 788,306 |
| The UK for Americans - True or False | 0 | - | 4.46 | 58,362 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,127 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,970 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,257 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,263 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,108 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,119 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,646 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,599 |
| Regions of France Map Quiz | 0 | - | 4.97 | 142,999 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,561 |
| Word Chain - Germany | 0 | - | 4.31 | 22,467 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,031 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,098 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,545 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,873 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,837 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,948 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,232 |
| Name a Valid English City | 0 | - | 4.19 | 16,623 |
| Champions League Winners | 0 | - | 4.92 | 995,026 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,247 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,095 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,482 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,655 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,160 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,392 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 90,968 |
| Name a Valid African Country | 0 | - | 4.98 | 152,810 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,022 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,368 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,267 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,025 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,051 |
| Germany Country Quiz | 0 | - | 4.82 | 156,401 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,055 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,739 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,747 |
| Italy Country Quiz | 0 | - | 4.82 | 122,072 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,251 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 150,980 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,907 |
| History of The Netherlands | 0 | - | 4.46 | 17,297 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,868 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,505 |
| Canary Islands | 0 | - | 4.61 | 17,388 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,668 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,085 |
| British Spellings | 0 | - | 4.07 | 99,183 |
| British to American Food Translation | 0 | - | 3.38 | 51,800 |
| British Acronyms | 0 | - | 4.39 | 45,600 |
| UK Immigration by Country | 0 | - | 4.94 | 139,488 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 137,969 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,102 |
| Geography of Scotland | 0 | - | 4.63 | 21,465 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,279 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,548 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,435 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,930 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,480 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,037 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,423 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,595 |
| Word Scramble - European Countries | 0 | - | 4.74 | 140,907 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,804 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,741 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,848 |
| Slavic Languages | 0 | - | 4.67 | 53,930 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,352 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,547 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,953 |
| France A-Z | 0 | - | 4.16 | 38,041 |
| French History Multiple Choice | 0 | - | 4.55 | 32,855 |
| History of Germany | 0 | - | 4.39 | 52,591 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,152 |
| Name that Greek Letter | 0 | - | 4.94 | 321,435 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,508 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,636 |
| Roman Names for Places | 0 | - | 4.62 | 57,818 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,279 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,224 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,062 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,395 |
| Switzerland A-Z | 0 | - | 4.45 | 25,486 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,406 |
| Malta Country Quiz | 0 | - | 4.81 | 30,789 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 19,843 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,326 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,383 |
| California Groups of Things | 0 | - | 4.25 | 45,246 |
| New York Groups of Things | 0 | - | 4.38 | 59,909 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,215 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,772 |
| Top European Languages on a Map | 0 | - | 4.77 | 130,994 |
| History of Russia Quiz | 0 | - | 4.49 | 31,771 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,542 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,770 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,080 |
| Famous French People | 0 | - | 4.12 | 27,871 |
| Movies Set in France | 0 | - | 4.26 | 13,066 |
| French Inventions | 0 | - | 4.08 | 13,859 |
| French Foods | 0 | - | 4.00 | 27,582 |
| History of Paris | 0 | - | 4.24 | 13,611 |
| The Trojan War | 0 | - | 4.83 | 39,393 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,337 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,043 |
| Italian Inventions | 0 | - | 3.81 | 18,406 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,286 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,460 |
| Famous Nordic People | 0 | - | 4.34 | 19,818 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,276 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,275 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,589 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,538 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,960 |
| Geography of Spain | 0 | - | 4.59 | 21,939 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,454 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,779 |
| People on Money - England | 0 | - | 4.29 | 16,557 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,282 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,918 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,117 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,785 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,831 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,307 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 110,817 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,764 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,632 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,158 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,773 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,619 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,580 |
| European Geography By Letter - V | 0 | - | 4.43 | 91,986 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,235 |
| Europe Map Quiz | 0 | - | 5.00 | 4,727,250 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,549 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,085 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,573 |
| Capitals of French Regions | 0 | - | 4.45 | 15,978 |
| Kings of France Quiz | 0 | - | 4.20 | 32,535 |
| Capitals of German States | 0 | - | 4.74 | 28,796 |
