| Regions of Italy | 0 | - | 4.92 | 77,249 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,777 |
| Famous Germans | 0 | - | 4.50 | 55,866 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,013 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,088 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,894 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,063 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,415 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,160 |
| Famous French People | 0 | - | 4.05 | 36,156 |
| States of Germany | 0 | - | 4.95 | 154,915 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,799 |
| The Mafia Quiz | 0 | - | 4.46 | 23,451 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,909 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,569 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,893 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,300 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,233 |
| Departments of France | 0 | - | 4.93 | 55,385 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,445 |
| England or Wales? | 0 | - | 4.94 | 46,018 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,853 |
| Official European Union Languages | 0 | - | 4.97 | 240,358 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,807 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,378 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,437 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,758 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,649 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,378 |
| Italian Foods | 0 | - | 4.30 | 73,380 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,686 |
| Roman Emperors | 0 | - | 4.95 | 121,413 |
| History of The Netherlands | 0 | - | 4.46 | 17,571 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,099 |
| British Acronyms | 0 | - | 4.40 | 45,963 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,208 |
| History of Italy | 0 | - | 4.55 | 32,183 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,514 |
| Famous Scottish People | 0 | - | 4.22 | 18,443 |
| Celtic Nations | 0 | - | 4.61 | 47,125 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,342 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,742 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,250 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,711 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,266 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,776 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,277 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,885 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,164 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,781 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,560 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,129 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,165 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,477 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,159 |
| Regions of France | 0 | - | 4.70 | 122,390 |
| France A-Z | 0 | - | 4.16 | 38,360 |
| France Immigration by Country | 0 | - | 4.70 | 77,004 |
| German Groups of Things | 0 | - | 4.47 | 38,668 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,746 |
| Germany True or False? | 0 | - | 4.61 | 49,062 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,509 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,567 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,931 |
| Counties of England | 0 | - | 4.97 | 804,148 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,942 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,842 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,572 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,534 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,960 |
| Monarchies of Europe | 0 | - | 4.90 | 99,024 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,907 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,801 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,970 |
| Famous Irish People | 0 | - | 4.05 | 46,078 |
| Word Chain - Italy | 0 | - | 4.07 | 23,229 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,178 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,367 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,611 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,822 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,620 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,263 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,584 |
| People on Money - England | 0 | - | 4.29 | 17,905 |
| Champions League Winners | 0 | - | 4.92 | 1,017,846 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,106 |
| Monarchies of Asia | 0 | - | 4.97 | 71,601 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,350 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,816 |
| Kings of France Quiz | 0 | - | 4.22 | 32,967 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,439 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,861 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,943 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,162 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,394 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,645 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,339 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,113 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,694 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,338 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,720 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,689 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,990 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,055 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,940 |
| European Geography A-Z | 0 | - | 4.29 | 49,520 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,291 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,985 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,986 |
| Word Chain - France | 0 | - | 4.38 | 42,960 |
| Germany Country Quiz | 0 | - | 4.82 | 159,038 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,226 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,278 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,069 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,411 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,209 |
| Countries Italy Declared War On | 0 | - | 4.74 | 48,080 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,614 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,019 |
| Canary Islands | 0 | - | 4.62 | 17,549 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,101 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,152 |
| British Spellings | 0 | - | 4.06 | 99,625 |
| British Groups of Things | 0 | - | 4.26 | 83,041 |
| UK Immigration by Country | 0 | - | 4.94 | 141,887 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,125 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,248 |
| British Monopoly Board | 0 | - | 4.52 | 41,293 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,023 |
| Geography of Scotland | 0 | - | 4.63 | 21,808 |
| Name the English Monarchs | 0 | - | 4.91 | 507,305 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,451 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,813 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,534 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,911 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,587 |
| Famous Australians by Description | 0 | - | 4.23 | 28,185 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,658 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,962 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,778 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,740 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,435 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 123,923 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,914 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,045 |
| Slavic Languages | 0 | - | 4.67 | 54,778 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,241 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,679 |
| French History Multiple Choice | 0 | - | 4.55 | 33,276 |
| History of Germany | 0 | - | 4.39 | 52,998 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,858 |
| Name that Greek Letter | 0 | - | 4.93 | 325,245 |
| Italian History A-Z | 0 | - | 4.16 | 17,955 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,378 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,261 |
| Roman Names for Places | 0 | - | 4.62 | 58,780 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,665 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,365 |
| Switzerland A-Z | 0 | - | 4.45 | 25,786 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 70,020 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,106 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,148 |
| Malta Country Quiz | 0 | - | 4.81 | 31,259 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,994 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,659 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,261 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,538 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,000 |
| Famous Russians | 0 | - | 4.16 | 23,925 |
| History of Russia Quiz | 0 | - | 4.47 | 32,025 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,900 |
| Russian History A-Z | 0 | - | 4.35 | 32,293 |
| Movies Set in France | 0 | - | 4.26 | 13,157 |
| French Inventions | 0 | - | 4.10 | 13,932 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,794 |
| History of Paris | 0 | - | 4.24 | 13,684 |
| Word Chain - Germany | 0 | - | 4.31 | 22,696 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,647 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,258 |
| The Trojan War | 0 | - | 4.83 | 40,055 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,167 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,859 |
| Italian Inventions | 0 | - | 3.81 | 18,483 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,848 |
| Famous Nordic People | 0 | - | 4.34 | 20,336 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,465 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,424 |
| Name a Valid English City | 0 | - | 4.19 | 16,837 |
| British Geography A-Z | 0 | - | 4.42 | 19,629 |
| London A-Z | 0 | - | 4.10 | 40,903 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,844 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,998 |
| Famous Chinese People | 0 | - | 4.09 | 11,933 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,640 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,464 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,592 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,822 |
| Europe Map Quiz | 0 | - | 5.00 | 4,792,951 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,568 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,239 |
