| Regions of Italy | 0 | - | 4.92 | 75,305 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,466 |
| England or Wales? | 0 | - | 4.94 | 45,518 |
| Germany True or False? | 0 | - | 4.61 | 48,676 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,523 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,056 |
| Australia True or False | 0 | - | 4.87 | 56,702 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,216 |
| Sweden True or False? | 0 | - | 4.56 | 40,201 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,299 |
| States of Germany | 0 | - | 4.96 | 151,313 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,667 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,522 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 50,794 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,312 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,796 |
| Departments of France | 0 | - | 4.93 | 53,450 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,962 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,890 |
| Official European Union Languages | 0 | - | 4.97 | 237,797 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,407 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,796 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,535 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,781 |
| Italian Foods | 0 | - | 4.31 | 72,516 |
| The Mafia Quiz | 0 | - | 4.46 | 23,259 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,327 |
| Roman Emperors | 0 | - | 4.95 | 119,412 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,691 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,661 |
| French History Multiple Choice | 0 | - | 4.55 | 32,962 |
| History of Italy | 0 | - | 4.55 | 31,911 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,331 |
| Celtic Nations | 0 | - | 4.69 | 46,880 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,148 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,527 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,786 |
| Regions of France | 0 | - | 4.77 | 120,091 |
| France Immigration by Country | 0 | - | 4.72 | 76,271 |
| Famous Germans | 0 | - | 4.50 | 54,877 |
| German Groups of Things | 0 | - | 4.46 | 38,397 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,802 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,767 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,110 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,167 |
| Counties of England | 0 | - | 4.97 | 793,206 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,913 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,005 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,348 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,654 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,668 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,739 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,447 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,600 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,917 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,304 |
| Word Chain - Italy | 0 | - | 4.07 | 23,139 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,074 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,411 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,876 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,554 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,403 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,759 |
| Champions League Winners | 0 | - | 4.92 | 1,001,592 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,323 |
| France Multiple Choice | 0 | - | 4.38 | 40,687 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,938 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,472 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,271 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,628 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,057 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,856 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,253 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,138 |
| Word Chain - France | 0 | - | 4.38 | 42,693 |
| Germany Country Quiz | 0 | - | 4.82 | 157,299 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,674 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,883 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,852 |
| Italy Country Quiz | 0 | - | 4.82 | 122,781 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,907 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,590 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,175 |
| History of The Netherlands | 0 | - | 4.46 | 17,374 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,506 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,130 |
| Canary Islands | 0 | - | 4.61 | 17,445 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,519 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,488 |
| British Spellings | 0 | - | 4.06 | 99,366 |
| British Groups of Things | 0 | - | 4.25 | 82,798 |
| British Acronyms | 0 | - | 4.39 | 45,721 |
| UK Immigration by Country | 0 | - | 4.94 | 140,458 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,002 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,088 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,965 |
| Geography of Scotland | 0 | - | 4.63 | 21,564 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,395 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,521 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,634 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,348 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,999 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,192 |
| Slavic Languages | 0 | - | 4.68 | 54,192 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,662 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,556 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,594 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,006 |
| France A-Z | 0 | - | 4.16 | 38,121 |
| History of Germany | 0 | - | 4.39 | 52,740 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,080 |
| Name that Greek Letter | 0 | - | 4.93 | 322,725 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,649 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,813 |
| Roman Names for Places | 0 | - | 4.62 | 58,090 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,770 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,379 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,547 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,402 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,921 |
| Switzerland A-Z | 0 | - | 4.45 | 25,590 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,595 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,976 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,620 |
| Malta Country Quiz | 0 | - | 4.81 | 30,957 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,525 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,137 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,669 |
| History of Russia Quiz | 0 | - | 4.49 | 31,858 |
| Famous French People | 0 | - | 4.12 | 28,159 |
| Movies Set in France | 0 | - | 4.26 | 13,101 |
| French Inventions | 0 | - | 4.08 | 13,881 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,928 |
| History of Paris | 0 | - | 4.24 | 13,632 |
| Word Chain - Germany | 0 | - | 4.31 | 22,536 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,800 |
| The Trojan War | 0 | - | 4.83 | 39,593 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,281 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,210 |
| Italian Inventions | 0 | - | 3.81 | 18,429 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,585 |
| Famous Nordic People | 0 | - | 4.34 | 20,004 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,572 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,115 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,307 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,504 |
| People on Money - England | 0 | - | 4.29 | 16,593 |
| Name a Valid English City | 0 | - | 4.19 | 16,685 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,070 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,533 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,322 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,625 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,731 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,163 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,136 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,025 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,480 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,386 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,058 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,833 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,465 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,650 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,682 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,156 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,809 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,093 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,136 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,824 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,287 |
| Capitals of French Regions | 0 | - | 4.45 | 16,025 |
| Kings of France Quiz | 0 | - | 4.20 | 32,638 |
| Capitals of German States | 0 | - | 4.74 | 28,901 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,229 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,750 |
| Ancient Greek Words | 0 | - | 4.93 | 111,176 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,147 |
| British to American Food Translation | 0 | - | 3.38 | 51,915 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,371 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,208 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,235 |
| Famous Scottish People | 0 | - | 4.22 | 18,366 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,769 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,093 |
| Australian Capitals | 0 | - | 4.92 | 62,671 |
| European Physical Geography | 0 | - | 4.26 | 33,438 |
| Geography of Russia | 0 | - | 4.57 | 21,493 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,874 |
| History of Austria | 0 | - | 4.70 | 17,815 |
| Austria Country Quiz | 0 | - | 4.57 | 59,557 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,527 |
| France Country Quiz | 0 | - | 4.70 | 134,565 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,056 |
| Geography of the French Empire | 0 | - | 4.45 | 27,007 |
| The French Revolution | 0 | - | 4.46 | 23,877 |
| Tour de France Winners | 0 | - | 4.27 | 15,304 |
| History of France | 0 | - | 4.59 | 56,676 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,442 |
| Greece Country Quiz | 0 | - | 4.74 | 66,030 |
| Italian History A-Z | 0 | - | 4.21 | 17,637 |
| Serie A Champions | 0 | - | 4.29 | 58,030 |
