| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,177 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,274 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,279 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,343 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,239 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,970 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,636 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,690 |
| Departments of France | 0 | - | 4.93 | 55,483 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,796 |
| Switzerland A-Z | 0 | - | 4.45 | 25,804 |
| England or Wales? | 0 | - | 4.94 | 46,095 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,890 |
| Official European Union Languages | 0 | - | 4.97 | 240,472 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,894 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,599 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,322 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,505 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,814 |
| The Trojan War | 0 | - | 4.83 | 40,126 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,365 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,735 |
| Roman Emperors | 0 | - | 4.95 | 121,525 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,415 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,121 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 66,343 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,103 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,354 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,797 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,171 |
| France A-Z | 0 | - | 4.16 | 38,371 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,775 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,534 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,090 |
| Celtic Nations | 0 | - | 4.61 | 47,131 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,557 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 122,004 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,560 |
| European Geography By Letter - D | 0 | - | 4.49 | 119,122 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,500 |
| European Geography By Letter - M | 0 | - | 4.70 | 133,033 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,432 |
| European Geography By Letter - R | 0 | - | 4.43 | 95,008 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,284 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,922 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,667 |
| Famous Germans | 0 | - | 4.50 | 55,902 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,264 |
| Famous Irish People | 0 | - | 4.05 | 46,087 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,589 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,976 |
| London A-Z | 0 | - | 4.10 | 40,919 |
| Champions League Winners | 0 | - | 4.92 | 1,018,719 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,544 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,045 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,937 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,045 |
| Countries Bordering France | 0 | - | 4.83 | 405,519 |
| States of Germany | 0 | - | 4.95 | 155,064 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,863 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,386 |
| Regions of Italy | 0 | - | 4.92 | 77,337 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,972 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,457 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,688 |
| Switzerland Country Quiz | 0 | - | 4.52 | 63,758 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,879 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,184 |
| European Geography By Letter - E | 0 | - | 4.25 | 122,517 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,885 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,538 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,336 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,863 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,510 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,849 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,773 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 52,089 |
| European Geography A-Z | 0 | - | 4.29 | 49,538 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,846 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,510 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,474 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,406 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,026 |
| Austria... or Australia? | 0 | - | 4.67 | 104,882 |
| Famous French People | 0 | - | 4.05 | 36,201 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,120 |
| Germany Country Quiz | 0 | - | 4.82 | 159,168 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,314 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,303 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,508 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,301 |
| Countries Italy Declared War On | 0 | - | 4.77 | 50,435 |
| The Mafia Quiz | 0 | - | 4.46 | 23,455 |
| History of The Netherlands | 0 | - | 4.46 | 17,582 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,662 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,097 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,188 |
| UK Immigration by Country | 0 | - | 4.94 | 141,957 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,386 |
| British Monopoly Board | 0 | - | 4.52 | 41,301 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,136 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,242 |
| Name the English Monarchs | 0 | - | 4.91 | 507,697 |
| Famous Scottish People | 0 | - | 4.22 | 18,445 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,617 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,743 |
| Word Scramble - European Countries | 0 | - | 4.72 | 142,492 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,704 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,953 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,094 |
| Slavic Languages | 0 | - | 4.67 | 54,807 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,087 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 105,068 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,254 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,602 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,851 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,574 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,315 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,400 |
| Name that Greek Letter | 0 | - | 4.93 | 325,411 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,549 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,910 |
| Counties of Ireland | 0 | - | 4.92 | 197,796 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,765 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,410 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,337 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,802 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,417 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,284 |
| Roman Names for Places | 0 | - | 4.62 | 58,820 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,044 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,671 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,413 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,478 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,467 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 70,051 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,117 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 76,073 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,753 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,177 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,680 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,464 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,460 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,060 |
| Famous Russians | 0 | - | 4.16 | 23,936 |
| History of Russia Quiz | 0 | - | 4.47 | 32,033 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,913 |
| Russian History A-Z | 0 | - | 4.35 | 32,330 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,476 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,244 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,745 |
| History of Italy | 0 | - | 4.55 | 32,199 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,575 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,867 |
| Famous Nordic People | 0 | - | 4.34 | 20,364 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,507 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,652 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,483 |
| Geography of Spain | 0 | - | 4.59 | 22,302 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,586 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,555 |
| People on Money - England | 0 | - | 4.30 | 21,289 |
| British Geography A-Z | 0 | - | 4.42 | 19,637 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,741 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 43,114 |
| Africa A-Z | 0 | - | 4.57 | 46,810 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,618 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,425 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,595 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,267 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,535 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,492 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,643 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,804 |
| Capitals of French Regions | 0 | - | 4.45 | 16,217 |
| Regions of France | 0 | - | 4.70 | 122,522 |
| France Immigration by Country | 0 | - | 4.70 | 77,044 |
| Kings of France Quiz | 0 | - | 4.22 | 32,978 |
| German Groups of Things | 0 | - | 4.47 | 38,684 |
| Capitals of German States | 0 | - | 4.74 | 29,102 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,603 |
| Germany True or False? | 0 | - | 4.61 | 49,092 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,622 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,598 |
| Ancient Greek Words | 0 | - | 4.93 | 112,741 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,278 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,662 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,982 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,519 |
| British to American Food Translation | 0 | - | 3.38 | 52,067 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 104,000 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,863 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,957 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 293,063 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,567 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 66,181 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,747 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,311 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,751 |
