| Countries Surrounding Rome | 0 | - | 4.97 | 49,620 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,129 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,660 |
| Roman Emperors | 0 | - | 4.95 | 120,424 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,686 |
| Regions of Italy | 0 | - | 4.92 | 76,285 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,675 |
| Departments of France | 0 | - | 4.93 | 54,500 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,687 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,882 |
| England or Wales? | 0 | - | 4.94 | 45,806 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,864 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,032 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,379 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,343 |
| Official European Union Languages | 0 | - | 4.97 | 238,962 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,156 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,139 |
| The Trojan War | 0 | - | 4.83 | 39,804 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,276 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,427 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,664 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,120 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,980 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,920 |
| History of Italy | 0 | - | 4.55 | 32,060 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,793 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,995 |
| Roman Names for Places | 0 | - | 4.62 | 58,412 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,111 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,120 |
| Viva la Vida Lyrics | 0 | - | 4.37 | 49,961 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,311 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,433 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,546 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,399 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,277 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,485 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,209 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,109 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,283 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,238 |
| Champions League Winners | 0 | - | 4.92 | 1,010,101 |
| Celtic Nations | 0 | - | 4.69 | 47,001 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,960 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,408 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 86,962 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,342 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,067 |
| Countries Bordering France | 0 | - | 4.83 | 403,613 |
| States of Germany | 0 | - | 4.95 | 153,261 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,303 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,745 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,770 |
| Italy Country Quiz | 0 | - | 4.77 | 123,622 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,206 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,447 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,218 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,447 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,426 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,167 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,758 |
| Don't Stop Believin' Lyrics | 0 | - | 4.47 | 223,897 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,591 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,654 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,973 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,415 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,679 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,787 |
| Austria... or Australia? | 0 | - | 4.68 | 104,515 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,672 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,199 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,972 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,288 |
| Germany Country Quiz | 0 | - | 4.83 | 158,200 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,660 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,413 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,082 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,950 |
| Counties of Ireland | 0 | - | 4.92 | 196,103 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,634 |
| Italian Foods | 0 | - | 4.30 | 72,953 |
| Italian History A-Z | 0 | - | 4.21 | 17,741 |
| Byzantine History | 0 | - | 4.91 | 28,920 |
| Byzantine Emperors | 0 | - | 4.92 | 14,376 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,320 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,132 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,253 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,286 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,393 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,074 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,536 |
| UK Immigration by Country | 0 | - | 4.94 | 141,186 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,213 |
| British Monopoly Board | 0 | - | 4.52 | 41,197 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,023 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,400 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,319 |
| Beatles Lyrics First Names | 0 | - | 4.34 | 39,436 |
| Elton John Quiz | 0 | - | 4.49 | 18,492 |
| Name the English Monarchs | 0 | - | 4.91 | 504,085 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,811 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,023 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,051 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,651 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,675 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,895 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,666 |
| Slavic Languages | 0 | - | 4.68 | 54,475 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,646 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,122 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,091 |
| France A-Z | 0 | - | 4.16 | 38,270 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,372 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,753 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,214 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,018 |
| Name that Greek Letter | 0 | - | 4.93 | 324,205 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,911 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,718 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,666 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,528 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,517 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,658 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,082 |
| Switzerland A-Z | 0 | - | 4.45 | 25,693 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,776 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,048 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,966 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,718 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,369 |
| History of Russia Quiz | 0 | - | 4.47 | 31,957 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,783 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,264 |
| Kings of France Quiz | 0 | - | 4.20 | 32,821 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,030 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,181 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,524 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,569 |
| Ancient Greek Words | 0 | - | 4.93 | 111,932 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,543 |
| Famous Irish People | 0 | - | 4.05 | 46,024 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,980 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,129 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,723 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,436 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,301 |
| Geography of Spain | 0 | - | 4.59 | 22,109 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,361 |
| British Geography A-Z | 0 | - | 4.42 | 19,565 |
| The Beatles Members | 0 | - | 4.22 | 23,981 |
| Imagine Lyrics | 0 | - | 4.53 | 43,416 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,846 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,692 |
| London A-Z | 0 | - | 4.10 | 40,818 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,008 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,400 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,800 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,352 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,020 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,348 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,218 |
| European Geography By Letter - R | 0 | - | 4.42 | 94,029 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,298 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,856 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,076 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,361 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,018 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,308 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,302 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,901 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,555 |
| Capitals of French Regions | 0 | - | 4.45 | 16,117 |
| Regions of France | 0 | - | 4.72 | 121,277 |
| France Immigration by Country | 0 | - | 4.70 | 76,693 |
| Famous Germans | 0 | - | 4.50 | 55,541 |
| German Groups of Things | 0 | - | 4.46 | 38,529 |
| Capitals of German States | 0 | - | 4.74 | 28,990 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,403 |
| Germany True or False? | 0 | - | 4.61 | 48,895 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,153 |
| Roman to Greek God | 0 | - | 4.52 | 123,032 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,828 |
| Serie A Champions | 0 | - | 4.29 | 58,498 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,123 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,504 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,344 |
| British to American Food Translation | 0 | - | 3.38 | 51,986 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,459 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,497 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,694 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,726 |
| Famous Scottish People | 0 | - | 4.22 | 18,415 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,735 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,630 |
| Livin' on a Prayer Lyrics | 0 | - | 4.28 | 96,126 |
| Oceania Map Quiz | 0 | - | 4.98 | 653,948 |
| Australian Capitals | 0 | - | 4.92 | 62,759 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,858 |
| America the Beautiful Lyrics | 0 | - | 4.27 | 19,772 |
