| England or Wales? | 0 | - | 4.94 | 45,827 |
| Austria... or Australia? | 0 | - | 4.68 | 104,561 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,520 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,249 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,921 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,758 |
| States of Germany | 0 | - | 4.95 | 153,523 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,359 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,964 |
| Departments of France | 0 | - | 4.93 | 54,604 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,636 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,398 |
| Official European Union Languages | 0 | - | 4.97 | 239,076 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,233 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,501 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,037 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,904 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,268 |
| The Trojan War | 0 | - | 4.83 | 39,843 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,394 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,952 |
| Roman Emperors | 0 | - | 4.95 | 120,523 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,148 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,794 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,937 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,709 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,627 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,816 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,753 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,444 |
| Celtic Nations | 0 | - | 4.69 | 47,008 |
| Famous Germans | 0 | - | 4.50 | 55,566 |
| German Groups of Things | 0 | - | 4.46 | 38,549 |
| Capitals of German States | 0 | - | 4.74 | 29,003 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,418 |
| Germany True or False? | 0 | - | 4.61 | 48,918 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,444 |
| Champions League Winners | 0 | - | 4.92 | 1,010,831 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,208 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,465 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,462 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,448 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,266 |
| History of Austria | 0 | - | 4.70 | 17,923 |
| Countries Bordering France | 0 | - | 4.83 | 403,812 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,901 |
| Regions of Italy | 0 | - | 4.92 | 76,409 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,511 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,246 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,636 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,478 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,204 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,450 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,771 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,629 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,504 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,671 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,949 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,812 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,286 |
| Germany Country Quiz | 0 | - | 4.83 | 158,311 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,733 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,113 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,968 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,796 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,700 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,461 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,174 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,338 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,370 |
| UK Immigration by Country | 0 | - | 4.94 | 141,244 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,336 |
| British Monopoly Board | 0 | - | 4.52 | 41,209 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,146 |
| Name the English Monarchs | 0 | - | 4.91 | 504,476 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,212 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,667 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,678 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,946 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,819 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,685 |
| Slavic Languages | 0 | - | 4.68 | 54,513 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,648 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,716 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,185 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,098 |
| France A-Z | 0 | - | 4.16 | 38,282 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,992 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,310 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,429 |
| French History Multiple Choice | 0 | - | 4.55 | 33,145 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,517 |
| Geography of Germany | 0 | - | 4.35 | 17,216 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,828 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,590 |
| History of Germany | 0 | - | 4.39 | 52,912 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,583 |
| Name that Greek Letter | 0 | - | 4.93 | 324,325 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,992 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,741 |
| Counties of Ireland | 0 | - | 4.92 | 196,290 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,682 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,060 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,703 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,456 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 41,547 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,044 |
| Roman Names for Places | 0 | - | 4.62 | 58,482 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,367 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,583 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,529 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,676 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,496 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,128 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,135 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,582 |
| Switzerland A-Z | 0 | - | 4.45 | 25,700 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,799 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,055 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,472 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,468 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,900 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,824 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,232 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,017 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,850 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,058 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,618 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,480 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,444 |
| History of Russia Quiz | 0 | - | 4.47 | 31,970 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,280 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,046 |
| Word Chain - Germany | 0 | - | 4.31 | 22,638 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,184 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,231 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,710 |
| Famous Irish People | 0 | - | 4.05 | 46,029 |
| History of Italy | 0 | - | 4.55 | 32,082 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,050 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,744 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,439 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,322 |
| Geography of Spain | 0 | - | 4.59 | 22,117 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,372 |
| British Geography A-Z | 0 | - | 4.42 | 19,573 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,696 |
| London A-Z | 0 | - | 4.10 | 40,834 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,095 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,495 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,881 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,435 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,104 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,479 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,282 |
| European Geography By Letter - R | 0 | - | 4.42 | 94,097 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,349 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,935 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,281 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,387 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,044 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,342 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,319 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,962 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,579 |
| Capitals of French Regions | 0 | - | 4.45 | 16,123 |
| Regions of France | 0 | - | 4.70 | 121,406 |
| France Immigration by Country | 0 | - | 4.70 | 76,717 |
| Kings of France Quiz | 0 | - | 4.20 | 32,841 |
| German Loan Words | 0 | - | 4.28 | 139,602 |
| German History A-Z | 0 | - | 4.49 | 24,681 |
| German Inventions | 0 | - | 3.91 | 30,257 |
| Embarrassing Chapters in German History | 0 | - | 3.40 | 12,659 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,193 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,531 |
| Ancient Greek Words | 0 | - | 4.93 | 112,035 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,902 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,213 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,316 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,539 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,365 |
| British to American Food Translation | 0 | - | 3.38 | 51,991 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,507 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,502 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,715 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,739 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,317 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,182 |
| Famous Scottish People | 0 | - | 4.22 | 18,418 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,900 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,748 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,703 |
| Australian Capitals | 0 | - | 4.92 | 62,775 |
| European Physical Geography | 0 | - | 4.26 | 33,549 |
| Geography of Russia | 0 | - | 4.57 | 21,560 |
| Austria Country Quiz | 0 | - | 4.57 | 59,882 |
| Belgium Country Quiz | 0 | - | 4.72 | 71,994 |
| France Country Quiz | 0 | - | 4.70 | 135,287 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,258 |
| Geography of the French Empire | 0 | - | 4.45 | 27,168 |
