| European Countries by First 2 Letters | 0 | - | 4.95 | 530,481 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,522 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 85,529 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,481 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,266 |
| States of Germany | 0 | - | 4.95 | 153,132 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,266 |
| Regions of Italy | 0 | - | 4.92 | 76,216 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,404 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,348 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,387 |
| Departments of France | 0 | - | 4.93 | 54,421 |
| Famous Germans | 0 | - | 4.50 | 55,514 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,133 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,754 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,610 |
| England or Wales? | 0 | - | 4.94 | 45,793 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,309 |
| Official European Union Languages | 0 | - | 4.97 | 238,887 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,109 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,958 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,149 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,638 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,097 |
| Famous French People | 0 | - | 4.07 | 35,833 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,070 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,945 |
| The Mafia Quiz | 0 | - | 4.46 | 23,368 |
| History of The Netherlands | 0 | - | 4.46 | 17,480 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,906 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,929 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,424 |
| Celtic Nations | 0 | - | 4.69 | 46,990 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,851 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,255 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,629 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,195 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,914 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,220 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,856 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,140 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,950 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,232 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,770 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,834 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,188 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,847 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,643 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,084 |
| Regions of France | 0 | - | 4.72 | 121,186 |
| France A-Z | 0 | - | 4.16 | 38,261 |
| France Immigration by Country | 0 | - | 4.70 | 76,670 |
| German Groups of Things | 0 | - | 4.46 | 38,520 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,457 |
| Germany True or False? | 0 | - | 4.61 | 48,883 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,184 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,481 |
| Switzerland A-Z | 0 | - | 4.45 | 25,685 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,336 |
| Counties of England | 0 | - | 4.97 | 798,661 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,427 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,686 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,008 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,724 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,366 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,948 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,775 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,127 |
| Famous Nordic People | 0 | - | 4.34 | 20,162 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,622 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,088 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,139 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,114 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,544 |
| People on Money - England | 0 | - | 4.29 | 16,623 |
| Champions League Winners | 0 | - | 4.92 | 1,009,601 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,676 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,568 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,207 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,743 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,170 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,531 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,388 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,076 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,829 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,463 |
| European Geography By Letter - O | 0 | - | 4.29 | 62,954 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,100 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,388 |
| European Geography A-Z | 0 | - | 4.29 | 49,356 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,852 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,327 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,580 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,760 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,101 |
| Word Chain - France | 0 | - | 4.38 | 42,835 |
| Germany Country Quiz | 0 | - | 4.83 | 158,149 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,597 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,633 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,327 |
| Italian Foods | 0 | - | 4.30 | 72,924 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,097 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,175 |
| Canary Islands | 0 | - | 4.62 | 17,490 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,238 |
| Switzerland Immigration by Country | 0 | - | 4.68 | 29,816 |
| British Spellings | 0 | - | 4.06 | 99,502 |
| British Groups of Things | 0 | - | 4.25 | 82,904 |
| British Acronyms | 0 | - | 4.40 | 45,845 |
| UK Immigration by Country | 0 | - | 4.94 | 141,144 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,053 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,138 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,959 |
| Geography of Scotland | 0 | - | 4.63 | 21,654 |
| Famous Scottish People | 0 | - | 4.22 | 18,411 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,952 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,673 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,857 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,551 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,641 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,615 |
| Slavic Languages | 0 | - | 4.67 | 54,460 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,848 |
| French History Multiple Choice | 0 | - | 4.55 | 33,117 |
| History of Germany | 0 | - | 4.39 | 52,891 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,725 |
| Name that Greek Letter | 0 | - | 4.93 | 324,132 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,705 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,659 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,282 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,513 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,651 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 42,046 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,485 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,755 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,040 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,858 |
| Malta Country Quiz | 0 | - | 4.81 | 31,110 |
| Africa A-Z | 0 | - | 4.57 | 46,674 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,561 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,323 |
| Famous Russians | 0 | - | 4.16 | 23,861 |
| History of Russia Quiz | 0 | - | 4.47 | 31,947 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,771 |
| Russian History A-Z | 0 | - | 4.35 | 31,844 |
| Movies Set in France | 0 | - | 4.26 | 13,131 |
| French Inventions | 0 | - | 4.10 | 13,907 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,352 |
| History of Paris | 0 | - | 4.24 | 13,658 |
| Word Chain - Germany | 0 | - | 4.31 | 22,612 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,182 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,173 |
| The Trojan War | 0 | - | 4.83 | 39,794 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,213 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,470 |
| Famous Irish People | 0 | - | 4.05 | 46,021 |
| History of Italy | 0 | - | 4.55 | 32,049 |
| Word Chain - Italy | 0 | - | 4.07 | 23,179 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,937 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,123 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,641 |
| Roman Emperors | 0 | - | 4.95 | 120,367 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,717 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,294 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,356 |
| Name a Valid English City | 0 | - | 4.19 | 16,745 |
| London A-Z | 0 | - | 4.10 | 40,811 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,104 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,659 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,283 |
| Europe Map Quiz | 0 | - | 5.00 | 4,770,097 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,345 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,005 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,292 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,288 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,539 |
| Capitals of French Regions | 0 | - | 4.45 | 16,103 |
| Kings of France Quiz | 0 | - | 4.20 | 32,812 |
| Capitals of German States | 0 | - | 4.74 | 28,989 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,394 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,775 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,518 |
| Ancient Greek Words | 0 | - | 4.93 | 111,890 |
| British to American Food Translation | 0 | - | 3.38 | 51,980 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,487 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,945 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,055 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,247 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,823 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,489 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,002 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,451 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,120 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,016 |
| Middle East A-Z | 0 | - | 4.47 | 46,137 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,319,478 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,404 |
| Oceania Map Quiz | 0 | - | 4.98 | 646,067 |
| Australian Capitals | 0 | - | 4.92 | 62,751 |
| Canada A-Z | 0 | - | 4.73 | 32,887 |
