| England or Wales? | 0 | - | 4.94 | 45,492 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,827 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,064 |
| States of Germany | 0 | - | 4.96 | 151,105 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,528 |
| Regions of Italy | 0 | - | 4.92 | 75,223 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 48,629 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,192 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,752 |
| Departments of France | 0 | - | 4.93 | 53,323 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,442 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,856 |
| Official European Union Languages | 0 | - | 4.97 | 237,674 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,324 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,580 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,882 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,747 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,669 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,642 |
| French History Multiple Choice | 0 | - | 4.55 | 32,951 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,316 |
| Celtic Nations | 0 | - | 4.69 | 46,873 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,108 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,360 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,508 |
| Regions of France | 0 | - | 4.77 | 119,980 |
| France Immigration by Country | 0 | - | 4.72 | 76,210 |
| Famous Germans | 0 | - | 4.50 | 54,841 |
| German Groups of Things | 0 | - | 4.46 | 38,382 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,199 |
| Germany True or False? | 0 | - | 4.61 | 48,664 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,751 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,729 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,898 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,067 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,156 |
| Counties of England | 0 | - | 4.97 | 792,643 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,841 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,506 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,567 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,308 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,623 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,601 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,696 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,348 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,333 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,798 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,169 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,307 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,349 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,670 |
| Champions League Winners | 0 | - | 4.92 | 1,000,810 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,296 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,859 |
| The Vikings! | 0 | - | 4.46 | 28,288 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,449 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,182 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,260 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,621 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,814 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,744 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,101 |
| Austria... or Australia? | 0 | - | 4.68 | 104,111 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,763 |
| Word Chain - France | 0 | - | 4.38 | 42,677 |
| Germany Country Quiz | 0 | - | 4.82 | 157,198 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,566 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,871 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,843 |
| Italy Country Quiz | 0 | - | 4.82 | 122,695 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,842 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,470 |
| Italian Foods | 0 | - | 4.31 | 72,468 |
| The Mafia Quiz | 0 | - | 4.46 | 23,252 |
| History of The Netherlands | 0 | - | 4.46 | 17,362 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,437 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,047 |
| Canary Islands | 0 | - | 4.61 | 17,438 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,439 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,420 |
| British Spellings | 0 | - | 4.06 | 99,356 |
| British Groups of Things | 0 | - | 4.25 | 82,778 |
| British Acronyms | 0 | - | 4.39 | 45,706 |
| UK Immigration by Country | 0 | - | 4.94 | 140,369 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,994 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,979 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,874 |
| Geography of Scotland | 0 | - | 4.63 | 21,547 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,269 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,510 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,627 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,302 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,866 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,135 |
| Slavic Languages | 0 | - | 4.68 | 54,152 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,636 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,537 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,589 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,001 |
| France A-Z | 0 | - | 4.16 | 38,114 |
| History of Germany | 0 | - | 4.39 | 52,726 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,667 |
| Name that Greek Letter | 0 | - | 4.93 | 322,571 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,525 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,701 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,358 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,540 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,858 |
| Switzerland A-Z | 0 | - | 4.45 | 25,579 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,569 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,970 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,580 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,049 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,896 |
| Malta Country Quiz | 0 | - | 4.81 | 30,940 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,404 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,110 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,586 |
| History of Russia Quiz | 0 | - | 4.49 | 31,846 |
| Famous French People | 0 | - | 4.12 | 28,140 |
| Movies Set in France | 0 | - | 4.26 | 13,097 |
| French Inventions | 0 | - | 4.08 | 13,876 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,881 |
| History of Paris | 0 | - | 4.24 | 13,629 |
| Word Chain - Germany | 0 | - | 4.31 | 22,527 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,762 |
| The Trojan War | 0 | - | 4.83 | 39,569 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,182 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,097 |
| History of Italy | 0 | - | 4.55 | 31,901 |
| Word Chain - Italy | 0 | - | 4.07 | 23,135 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,447 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,069 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,289 |
| Roman Emperors | 0 | - | 4.95 | 119,253 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,569 |
| Famous Nordic People | 0 | - | 4.34 | 19,986 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,723 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,567 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,097 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,302 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,500 |
| People on Money - England | 0 | - | 4.29 | 16,590 |
| Name a Valid English City | 0 | - | 4.19 | 16,673 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,508 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,172 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,688 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,137 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,115 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,993 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,448 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,334 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,032 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,810 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,444 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,617 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,259 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,136 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,778 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,080 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,121 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,800 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,247 |
| Capitals of French Regions | 0 | - | 4.45 | 16,019 |
| Kings of France Quiz | 0 | - | 4.20 | 32,632 |
| Capitals of German States | 0 | - | 4.74 | 28,895 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,205 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,452 |
| Ancient Greek Words | 0 | - | 4.93 | 111,114 |
| British to American Food Translation | 0 | - | 3.38 | 51,908 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,359 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,075 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,149 |
| Famous Scottish People | 0 | - | 4.22 | 18,359 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,757 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,651 |
| Australian Capitals | 0 | - | 4.92 | 62,658 |
| European Physical Geography | 0 | - | 4.26 | 33,426 |
| Geography of Russia | 0 | - | 4.57 | 21,483 |
| History of Austria | 0 | - | 4.70 | 17,801 |
| Austria Country Quiz | 0 | - | 4.57 | 59,535 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,494 |
| France Country Quiz | 0 | - | 4.70 | 134,502 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,038 |
| Geography of the French Empire | 0 | - | 4.45 | 26,999 |
| The French Revolution | 0 | - | 4.46 | 23,863 |
| France Multiple Choice | 0 | - | 4.38 | 40,682 |
| Tour de France Winners | 0 | - | 4.27 | 15,290 |
| History of France | 0 | - | 4.59 | 56,637 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Greece Country Quiz | 0 | - | 4.74 | 65,989 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,177 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,837 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,615 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,367 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,236 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,267 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,593 |
| The Portuguese Empire | 0 | - | 4.58 | 12,030 |
| Spain Country Quiz | 0 | - | 4.45 | 128,053 |
