| European Countries by First 2 Letters | 0 | - | 4.95 | 532,900 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,109 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,073 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 89,036 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,259 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,122 |
| States of Germany | 0 | - | 4.95 | 154,845 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,776 |
| Regions of Italy | 0 | - | 4.92 | 77,214 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,883 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,507 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,868 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,191 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,156 |
| Departments of France | 0 | - | 4.93 | 55,342 |
| Famous Germans | 0 | - | 4.50 | 55,850 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,502 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,768 |
| England or Wales? | 0 | - | 4.94 | 46,007 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,824 |
| Official European Union Languages | 0 | - | 4.97 | 240,111 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,775 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,266 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,416 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,768 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,583 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,366 |
| Famous French People | 0 | - | 4.05 | 36,144 |
| The Mafia Quiz | 0 | - | 4.46 | 23,447 |
| History of The Netherlands | 0 | - | 4.46 | 17,569 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,090 |
| Monarchies of the World | 0 | - | 4.94 | 170,469 |
| Celtic Nations | 0 | - | 4.61 | 47,123 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,323 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,725 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,229 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,629 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,250 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,761 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,271 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,876 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,154 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,765 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,549 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,076 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,343 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,677 |
| Regions of France | 0 | - | 4.70 | 122,301 |
| France A-Z | 0 | - | 4.16 | 38,353 |
| France Immigration by Country | 0 | - | 4.70 | 76,985 |
| German Groups of Things | 0 | - | 4.47 | 38,659 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,732 |
| Germany True or False? | 0 | - | 4.61 | 49,056 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,502 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,554 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,888 |
| Switzerland A-Z | 0 | - | 4.45 | 25,782 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,428 |
| Counties of England | 0 | - | 4.97 | 803,889 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,919 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,832 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,384 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,528 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,617 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,932 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,863 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,843 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,775 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,940 |
| Famous Nordic People | 0 | - | 4.34 | 20,328 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,648 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,722 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,593 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,223 |
| People on Money - England | 0 | - | 4.29 | 16,647 |
| Champions League Winners | 0 | - | 4.92 | 1,017,466 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,095 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,800 |
| Belgium Country Quiz | 0 | - | 4.72 | 72,338 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,423 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,855 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,380 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,628 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,333 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,105 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,687 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,330 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,714 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,684 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,986 |
| European Geography A-Z | 0 | - | 4.29 | 49,511 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,194 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,229 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,161 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,977 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,947 |
| Word Chain - France | 0 | - | 4.38 | 42,953 |
| Germany Country Quiz | 0 | - | 4.82 | 158,995 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,185 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,269 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,066 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,371 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,177 |
| Italian Foods | 0 | - | 4.30 | 73,356 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,588 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,996 |
| Canary Islands | 0 | - | 4.62 | 17,547 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,058 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,133 |
| British Spellings | 0 | - | 4.06 | 99,623 |
| British Groups of Things | 0 | - | 4.26 | 83,035 |
| British Acronyms | 0 | - | 4.40 | 45,957 |
| UK Immigration by Country | 0 | - | 4.94 | 141,852 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,123 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,202 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,981 |
| Geography of Scotland | 0 | - | 4.63 | 21,778 |
| Famous Scottish People | 0 | - | 4.22 | 18,442 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,382 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,738 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,416 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 123,582 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,898 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,021 |
| Slavic Languages | 0 | - | 4.67 | 54,760 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,162 |
| French History Multiple Choice | 0 | - | 4.55 | 33,271 |
| History of Germany | 0 | - | 4.39 | 52,993 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,655 |
| Name that Greek Letter | 0 | - | 4.93 | 325,183 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,753 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,766 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,659 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,352 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,973 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 70,006 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,101 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,130 |
| Malta Country Quiz | 0 | - | 4.81 | 31,253 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,970 |
| Famous Russians | 0 | - | 4.16 | 23,921 |
| History of Russia Quiz | 0 | - | 4.47 | 32,016 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,896 |
| Russian History A-Z | 0 | - | 4.35 | 32,285 |
| Movies Set in France | 0 | - | 4.26 | 13,157 |
| French Inventions | 0 | - | 4.10 | 13,930 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,771 |
| History of Paris | 0 | - | 4.24 | 13,684 |
| Word Chain - Germany | 0 | - | 4.31 | 22,693 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,623 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,253 |
| The Trojan War | 0 | - | 4.83 | 40,035 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,116 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,784 |
| Famous Irish People | 0 | - | 4.05 | 46,076 |
| History of Italy | 0 | - | 4.55 | 32,175 |
| Word Chain - Italy | 0 | - | 4.07 | 23,227 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,473 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,175 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,661 |
| Roman Emperors | 0 | - | 4.95 | 121,368 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,841 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,461 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,420 |
| Name a Valid English City | 0 | - | 4.19 | 16,836 |
| London A-Z | 0 | - | 4.10 | 40,891 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 43,066 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,921 |
| Africa A-Z | 0 | - | 4.57 | 46,792 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,594 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,579 |
| Europe Map Quiz | 0 | - | 5.00 | 4,791,879 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,556 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,228 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,493 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,455 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,597 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,778 |
| Capitals of French Regions | 0 | - | 4.45 | 16,193 |
| Kings of France Quiz | 0 | - | 4.21 | 32,957 |
| Capitals of German States | 0 | - | 4.74 | 29,090 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,575 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,220 |
| Ancient Greek Words | 0 | - | 4.93 | 112,614 |
| British to American Food Translation | 0 | - | 3.38 | 52,058 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,592 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,598 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,947 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,518 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 66,127 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,707 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,263 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,703 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,362 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,368 |
| Middle East A-Z | 0 | - | 4.47 | 46,266 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,327,082 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,046 |
| Australian Capitals | 0 | - | 4.92 | 62,856 |
| Canada A-Z | 0 | - | 4.73 | 32,985 |
