| Cantons of Switzerland | 0 | - | 4.98 | 50,158 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,344 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,848 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,328 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,249 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,467 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,787 |
| States of Germany | 0 | - | 4.96 | 150,045 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,009 |
| Regions of Italy | 0 | - | 4.92 | 74,721 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,809 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,337 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,554 |
| Departments of France | 0 | - | 4.93 | 52,816 |
| Famous Germans | 0 | - | 4.50 | 54,612 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,474 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,366 |
| Switzerland A-Z | 0 | - | 4.45 | 25,508 |
| England or Wales? | 0 | - | 4.94 | 45,317 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,580 |
| Official European Union Languages | 0 | - | 4.97 | 236,521 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,700 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,196 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,218 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,450 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,536 |
| The Mafia Quiz | 0 | - | 4.46 | 23,206 |
| History of The Netherlands | 0 | - | 4.46 | 17,311 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,151 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,567 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,238 |
| Celtic Nations | 0 | - | 4.69 | 46,812 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,404 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 110,903 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,846 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,707 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,215 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,886 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,670 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,626 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,021 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,305 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,595 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,824 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,877 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,962 |
| Regions of France | 0 | - | 4.78 | 119,245 |
| France A-Z | 0 | - | 4.16 | 38,056 |
| France Immigration by Country | 0 | - | 4.72 | 75,963 |
| German Groups of Things | 0 | - | 4.46 | 38,306 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,048 |
| Germany True or False? | 0 | - | 4.61 | 48,535 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,464 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,825 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,045 |
| Counties of England | 0 | - | 4.97 | 789,167 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,956 |
| The UK for Americans - True or False | 0 | - | 4.46 | 58,386 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,907 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,324 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,214 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,989 |
| Famous French People | 0 | - | 4.12 | 27,945 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,120 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,680 |
| Famous Nordic People | 0 | - | 4.34 | 19,855 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,543 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,139 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,907 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,085 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,463 |
| People on Money - England | 0 | - | 4.29 | 16,563 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,328 |
| Champions League Winners | 0 | - | 4.92 | 996,316 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,996 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,144 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,520 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,695 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,405 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,216 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,602 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,900 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,275 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,487 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,165 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,917 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,294 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,509 |
| European Geography A-Z | 0 | - | 4.28 | 48,999 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,529 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,199 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,163 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,185 |
| Word Chain - France | 0 | - | 4.38 | 42,582 |
| Germany Country Quiz | 0 | - | 4.82 | 156,544 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,142 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,774 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,768 |
| Italy Country Quiz | 0 | - | 4.82 | 122,200 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,372 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,076 |
| Italian Foods | 0 | - | 4.31 | 72,182 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,949 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,635 |
| Canary Islands | 0 | - | 4.61 | 17,402 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,853 |
| British Spellings | 0 | - | 4.07 | 99,203 |
| British Groups of Things | 0 | - | 4.25 | 82,669 |
| British Acronyms | 0 | - | 4.39 | 45,619 |
| UK Immigration by Country | 0 | - | 4.94 | 139,632 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,945 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,139 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,275 |
| Geography of Scotland | 0 | - | 4.63 | 21,479 |
| Famous Scottish People | 0 | - | 4.22 | 18,326 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,492 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,599 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,986 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,042 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,121 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,791 |
| Slavic Languages | 0 | - | 4.67 | 53,981 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,512 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,395 |
| French History Multiple Choice | 0 | - | 4.55 | 32,878 |
| History of Germany | 0 | - | 4.39 | 52,614 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,875 |
| Name that Greek Letter | 0 | - | 4.94 | 321,654 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,428 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,370 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,246 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,473 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,492 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,444 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,915 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,445 |
| Malta Country Quiz | 0 | - | 4.81 | 30,826 |
| Africa A-Z | 0 | - | 4.57 | 46,370 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,527 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,128 |
| Famous Russians | 0 | - | 4.16 | 23,728 |
| History of Russia Quiz | 0 | - | 4.49 | 31,792 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,565 |
| Movies Set in France | 0 | - | 4.26 | 13,073 |
| French Inventions | 0 | - | 4.08 | 13,865 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,598 |
| History of Paris | 0 | - | 4.24 | 13,615 |
| Word Chain - Germany | 0 | - | 4.31 | 22,475 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,460 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,984 |
| The Trojan War | 0 | - | 4.83 | 39,426 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,535 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,284 |
| Famous Irish People | 0 | - | 4.05 | 45,855 |
| History of Italy | 0 | - | 4.55 | 31,814 |
| Word Chain - Italy | 0 | - | 4.07 | 23,087 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,159 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,041 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,045 |
| Roman Emperors | 0 | - | 4.95 | 118,484 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,481 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,981 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,239 |
| Name a Valid English City | 0 | - | 4.19 | 16,629 |
| London A-Z | 0 | - | 4.10 | 40,637 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 34,201 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,099 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,741 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,193 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,991 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,616 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,943 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,982 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,149 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,609 |
| Capitals of French Regions | 0 | - | 4.45 | 15,984 |
| Kings of France Quiz | 0 | - | 4.20 | 32,553 |
| Capitals of German States | 0 | - | 4.74 | 28,811 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,096 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,106 |
| Ancient Greek Words | 0 | - | 4.92 | 110,691 |
| British to American Food Translation | 0 | - | 3.38 | 51,814 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,262 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,080 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,334 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,827 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,393 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,161 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,562 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,074 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,712 |
| Middle East A-Z | 0 | - | 4.47 | 45,787 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,802 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,264 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,292 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| Canada A-Z | 0 | - | 4.73 | 32,647 |
| European Physical Geography | 0 | - | 4.26 | 33,373 |
| Geography of Russia | 0 | - | 4.57 | 21,427 |
| Russian History A-Z | 0 | - | 4.38 | 30,814 |
