| England or Wales? | 0 | - | 4.94 | 42,923 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 506,494 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 189,709 |
| Iceland... or Ireland? | 0 | - | 4.74 | 55,377 |
| Departments of France | 0 | - | 4.88 | 43,123 |
| Countries Surrounding Rome | 0 | - | 4.96 | 47,984 |
| Count to 10 in Europe: Pro | 0 | - | 4.84 | 64,575 |
| Official European Union Languages | 0 | - | 4.98 | 226,192 |
| European Countries in their Native Language | 0 | - | 4.99 | 150,281 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 406,452 |
| French Geography Quiz #1 | 0 | - | 4.87 | 32,836 |
| Sweden Immigration by Country | 0 | - | 4.64 | 44,593 |
| Austria... or Australia? | 0 | - | 4.78 | 101,146 |
| The Trojan War | 0 | - | 4.81 | 37,473 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.86 | 101,456 |
| Ancient Roman Trivia #1 | 0 | - | 4.83 | 74,521 |
| Roman Emperors | 0 | - | 4.96 | 108,278 |
| Europe Geography Decoder | 0 | - | 4.85 | 66,470 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 40,396 |
| Russia Multiple Choice | 0 | - | 4.57 | 39,399 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 39,876 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.90 | 83,454 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 296,942 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 141,357 |
| Germany Multiple Choice | 0 | - | 4.83 | 51,674 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 22,083 |
| Celtic Nations | 0 | - | 4.75 | 45,828 |
| UK Cities Map Quiz | 0 | - | 4.95 | 448,126 |
| Champions League Winners | 0 | - | 4.91 | 938,085 |
| Australia... or New Zealand? | 0 | - | 4.83 | 58,111 |
| Catholic Countries in Europe | 0 | - | 4.83 | 89,024 |
| Category Elimination - European Geography #3 | 0 | - | 4.83 | 72,754 |
| Federal Subjects of Russia | 0 | - | 4.93 | 127,526 |
| Slovakia... or Slovenia? | 0 | - | 4.70 | 40,735 |
| Countries Bordering France | 0 | - | 4.87 | 371,849 |
| States of Germany | 0 | - | 4.94 | 136,026 |
| Germany Immigration by Country | 0 | - | 4.86 | 74,860 |
| Countries Bordering Germany | 0 | - | 4.99 | 353,792 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 29,009 |
| Counties of Ireland | 0 | - | 4.88 | 173,532 |
| Regions of Italy | 0 | - | 4.90 | 66,817 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 34,587 |
| The Vikings! | 0 | - | 4.46 | 27,711 |
| Regions of Spain Quiz | 0 | - | 4.89 | 103,385 |
| Cantons of Switzerland | 0 | - | 4.97 | 44,626 |
| United Kingdom A-Z | 0 | - | 4.53 | 83,983 |
| Which Country of the United Kingdom? | 0 | - | 4.57 | 37,209 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 16,374 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.96 | 304,779 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 56,017 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 215,020 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 261,007 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 153,809 |
| France Cities Map Quiz | 0 | - | 4.95 | 156,586 |
| Germany Country Quiz | 0 | - | 4.82 | 148,494 |
| Germany Cities Map Quiz | 0 | - | 4.83 | 112,148 |
| Ancient Greek Trivia | 0 | - | 4.55 | 65,046 |
| Italy Country Quiz | 0 | - | 4.83 | 115,923 |
| Regions of Italy Map Quiz | 0 | - | 4.95 | 141,163 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 144,534 |
| Countries Italy Declared War On | 0 | - | 4.75 | 41,564 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 91,057 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 177,104 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 100,590 |
| UK Immigration by Country | 0 | - | 4.94 | 132,385 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 128,548 |
| British Monopoly Board | 0 | - | 4.51 | 40,200 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 108,401 |
| English Monarchs Quiz | 0 | - | 4.90 | 472,064 |
| All UEFA Champions League Teams Ever | 0 | - | 4.83 | 119,232 |
| Pre-Euro Currencies | 0 | - | 4.43 | 51,011 |
| Word Scramble - European Countries | 0 | - | 4.74 | 134,415 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 101,115 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 60,651 |
| Slavic Languages | 0 | - | 4.68 | 51,328 |
| Andorra Country Quiz | 0 | - | 4.88 | 29,666 |
| Countries Bordering Austria | 0 | - | 4.97 | 113,839 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.97 | 95,870 |
| Famous Dutch and Belgian People | 0 | - | 4.53 | 17,329 |
| France A-Z | 0 | - | 4.18 | 37,005 |
| Countries that Visit France the Most | 0 | - | 4.83 | 42,460 |
| Countries Closest to Metropolitan France | 0 | - | 4.88 | 69,101 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 43,034 |
| Countries that Beat Germany | 0 | - | 4.95 | 97,229 |
| Countries With the Most German Speakers | 0 | - | 4.85 | 57,815 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 610,824 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.57 | 61,119 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 40,123 |
| Capitals of Italian Regions | 0 | - | 4.61 | 35,433 |
| Countries Bordering Italy | 0 | - | 4.94 | 97,464 |
| Countries that Beat Italy | 0 | - | 4.85 | 50,311 |
| Countries Closest to Italy | 0 | - | 4.97 | 188,061 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 36,678 |
| Geography of the Roman Empire | 0 | - | 4.56 | 50,046 |
| Roman Names for Places | 0 | - | 4.65 | 44,210 |
| Greenland Country Quiz | 0 | - | 4.83 | 34,243 |
| Countries that Beat Portugal | 0 | - | 4.87 | 54,683 |
| Spanish Immigration by Country | 0 | - | 4.62 | 53,817 |
| Most Common First Names in Spain | 0 | - | 4.26 | 44,596 |
| Countries Closest to Spain | 0 | - | 4.95 | 215,773 |
| Countries that Beat Spain | 0 | - | 4.95 | 59,636 |
| Switzerland A-Z | 0 | - | 4.45 | 19,227 |
| Most Common Surnames in the UK | 0 | - | 4.20 | 67,783 |
| Fictional Characters from Great Britain | 0 | - | 4.13 | 31,647 |
| Countries that Visit the UK the Most | 0 | - | 4.84 | 68,495 |
| Counties of the UK and Ireland | 0 | - | 4.97 | 116,931 |
| Wonderwall Lyrics | 0 | - | 4.24 | 71,017 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 229,457 |
| British History Multiple Choice #1 | 0 | - | 4.47 | 53,223 |
| World Capitals Closest to London | 0 | - | 4.89 | 97,403 |
| 50 Busiest Air Routes from London | 0 | - | 4.89 | 91,538 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 27,715 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 45,855 |
| Top European Languages on a Map | 0 | - | 4.78 | 124,971 |
| French Geography Quiz #2 | 0 | - | 4.62 | 22,217 |
| France Multiple Choice | 0 | - | 4.41 | 39,752 |
| The Reign of Napoleon | 0 | - | 4.54 | 37,340 |
| Ancient Greece A-Z | 0 | - | 4.61 | 21,915 |
| Olympian Gods Quiz | 0 | - | 4.96 | 469,645 |
| Geography of Ancient Greece | 0 | - | 4.77 | 30,869 |
| Name that Greek Letter | 0 | - | 4.94 | 309,098 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 112,822 |
| Famous Irish People | 0 | - | 4.01 | 45,011 |
| Italy Multiple Choice | 0 | - | 4.71 | 98,937 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,398 |
| Greenland... or Iceland? | 0 | - | 4.50 | 42,856 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 14,660 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,010 |
| Geography of Spain | 0 | - | 4.52 | 21,123 |
| Members of the British Royal Family | 0 | - | 4.09 | 111,755 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,056 |
| London A-Z | 0 | - | 4.15 | 39,633 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 256,382 |
| European Geography By Letter - A | 0 | - | 4.61 | 128,274 |
| European Geography By Letter - B #1 | 0 | - | 4.73 | 107,112 |
| European Geography By Letter - C | 0 | - | 4.46 | 108,413 |
| European Geography By Letter - D | 0 | - | 4.51 | 103,143 |
| European Geography By Letter - L | 0 | - | 4.51 | 108,336 |
| European Geography By Letter - M | 0 | - | 4.53 | 117,675 |
| European Geography By Letter - P | 0 | - | 4.79 | 93,001 |
| European Geography By Letter - N | 0 | - | 4.43 | 96,502 |
| European Geography By Letter - R | 0 | - | 4.41 | 89,922 |
| European Geography By Letter - V | 0 | - | 4.46 | 89,316 |
| Europe Map Quiz | 0 | - | 5.00 | 4,515,335 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 69,100 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 69,638 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 68,221 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 59,477 |
| European Geography By Letter - S #1 | 0 | - | 4.61 | 96,579 |
| European Geography By Letter - B #2 | 0 | - | 4.74 | 65,279 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 23,095 |
| Famous Swiss and Austrian People | 0 | - | 4.39 | 14,027 |
| Capitals of French Regions | 0 | - | 4.42 | 15,392 |
| Regions of France | 0 | - | 4.70 | 109,435 |
| France Immigration by Country | 0 | - | 4.78 | 72,746 |
| French History Multiple Choice | 0 | - | 4.55 | 31,511 |
| Famous Germans | 0 | - | 4.43 | 38,572 |
| German Groups of Things | 0 | - | 4.45 | 37,243 |
| Capitals of German States | 0 | - | 4.70 | 28,053 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 21,796 |
| Germany True or False? | 0 | - | 4.62 | 46,517 |
| Country Quiz on a Map - Germany | 0 | - | 4.93 | 30,875 |
| Largest Islands of Greece | 0 | - | 4.58 | 43,865 |
| The Life of Alexander the Great | 0 | - | 4.49 | 17,909 |
| Ancient Greek Words | 0 | - | 4.92 | 104,428 |
| Seven Hills of Rome | 0 | - | 4.69 | 8,808 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 52,228 |
| Provinces of the Netherlands | 0 | - | 4.71 | 36,653 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 47,008 |
| British to American Food Translation. | 0 | - | 3.40 | 51,191 |
| Foods in a Full English Breakfast | 0 | - | 4.45 | 96,590 |
| Things British People Know that Americans Don't | 0 | - | 4.23 | 50,143 |
| The UK for Americans - True or False | 0 | - | 4.46 | 56,731 |
| Beatles Songs Quiz | 0 | - | 4.96 | 221,616 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 282,159 |
| British History Multiple Choice #2 | 0 | - | 4.41 | 29,507 |
| Famous Scottish People | 0 | - | 4.20 | 17,833 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 266,318 |
| Africa Map Quiz | 0 | - | 5.00 | 2,021,267 |
| Oceania Map Quiz | 0 | - | 4.98 | 599,523 |
| Australian Capitals | 0 | - | 4.92 | 61,786 |
| European Physical Geography | 0 | - | 4.23 | 32,662 |
| History of Russia Quiz | 0 | - | 4.48 | 30,962 |
| Geography of Russia | 0 | - | 4.56 | 20,793 |
| History of Austria | 0 | - | 4.69 | 17,046 |
| Austria Country Quiz | 0 | - | 4.56 | 56,875 |
| Belgium Country Quiz | 0 | - | 4.64 | 67,942 |
| France Country Quiz | 0 | - | 4.71 | 127,948 |
| Biggest French Empire Countries | 0 | - | 4.50 | 63,369 |
| Geography of the French Empire | 0 | - | 4.51 | 26,091 |
| The French Revolution | 0 | - | 4.45 | 22,704 |
| Tour de France Winners | 0 | - | 4.22 | 14,356 |
| History of France Quiz | 0 | - | 4.56 | 41,449 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 22,708 |
| Greece Country Quiz | 0 | - | 4.70 | 62,914 |
| Figures from Greek Mythology | 0 | - | 4.90 | 174,924 |
| History of Ireland Quiz | 0 | - | 4.44 | 20,115 |
| History of Italy | 0 | - | 4.50 | 30,902 |
| Italian History A-Z | 0 | - | 4.17 | 9,236 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 415,706 |
