| Regions of Spain Quiz | 0 | - | 4.85 | 95,037 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 457,376 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 31,825 |
| Cantons of Switzerland | 0 | - | 4.96 | 40,344 |
| Catholic Countries in Europe | 0 | - | 4.87 | 83,741 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 167,165 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 65,774 |
| Famous Germans | 0 | - | 4.39 | 35,193 |
| States of Germany | 0 | - | 4.93 | 123,795 |
| Germany Immigration by Country | 0 | - | 4.90 | 69,781 |
| Counties of Ireland | 0 | - | 4.89 | 159,216 |
| Regions of Italy | 0 | - | 4.88 | 60,498 |
| Famous Italians | 0 | - | 4.40 | 66,280 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,618 |
| 100 Greatest Britons Quiz | 0 | - | 4.44 | 46,030 |
| British Acronyms | 0 | - | 4.42 | 43,374 |
| England or Wales? | 0 | - | 4.93 | 40,266 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 200,892 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 142,882 |
| United Kingdom A-Z | 0 | - | 4.53 | 80,907 |
| Count to 10 in Europe: Pro | 0 | - | 4.81 | 60,973 |
| Official European Union Languages | 0 | - | 4.98 | 200,469 |
| European Countries in their Native Language | 0 | - | 4.99 | 143,978 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 386,404 |
| Spanish Immigration by Country | 0 | - | 4.63 | 51,878 |
| Famous French People | 0 | - | 4.15 | 24,134 |
| History of The Netherlands | 0 | - | 4.42 | 15,770 |
| Canary Islands | 0 | - | 4.61 | 16,563 |
| Countries that Beat Switzerland | 0 | - | 4.85 | 37,641 |
| Europe Geography Decoder | 0 | - | 4.89 | 63,288 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 39,052 |
| The Mafia Quiz | 0 | - | 4.47 | 21,598 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 74,700 |
| Famous Scottish People | 0 | - | 4.19 | 17,508 |
| Add A Letter - Make a European City | 0 | - | 4.86 | 20,860 |
| Provinces of the Netherlands | 0 | - | 4.61 | 33,338 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,618 |
| Counties of England | 0 | - | 4.96 | 690,654 |
| Foods in a Full English Breakfast | 0 | - | 4.41 | 73,453 |
| Celtic Nations | 0 | - | 4.76 | 44,659 |
| European Geography By Letter - A | 0 | - | 4.51 | 124,492 |
| European Geography By Letter - B #1 | 0 | - | 4.72 | 103,662 |
| European Geography By Letter - C | 0 | - | 4.43 | 105,017 |
| European Geography By Letter - D | 0 | - | 4.53 | 99,609 |
| European Geography By Letter - L | 0 | - | 4.51 | 105,188 |
| European Geography By Letter - M | 0 | - | 4.55 | 114,523 |
| European Geography By Letter - P | 0 | - | 4.79 | 89,753 |
| European Geography By Letter - N | 0 | - | 4.43 | 93,506 |
| European Geography By Letter - V | 0 | - | 4.45 | 86,517 |
| European Geography By Letter - S #1 | 0 | - | 4.58 | 93,971 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.90 | 79,673 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 285,479 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 116,054 |
| European Geography By Letter - B #2 | 0 | - | 4.74 | 62,142 |
| Famous Dutch and Belgian People | 0 | - | 4.51 | 16,804 |
| Regions of France | 0 | - | 4.63 | 100,560 |
| France Immigration by Country | 0 | - | 4.80 | 68,984 |
| German Groups of Things | 0 | - | 4.43 | 35,977 |
| Germany Multiple Choice | 0 | - | 4.81 | 49,391 |
| Germany True or False? | 0 | - | 4.63 | 44,489 |
| Largest Islands of Greece | 0 | - | 4.57 | 39,775 |
| UK Cities Map Quiz | 0 | - | 4.94 | 433,353 |
| Parts of the United Kingdom | 0 | - | 4.88 | 83,888 |
| Counties of England Map Quiz | 0 | - | 4.97 | 286,913 |
| The British Royal Family - Modern Times | 0 | - | 4.12 | 20,633 |
| People on Money - England | 0 | - | 4.33 | 15,940 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 270,485 |
| Champions League Winners | 0 | - | 4.91 | 853,953 |
| Asian Geography By Letter - B | 0 | - | 4.82 | 61,297 |
| Monarchies of Asia | 0 | - | 4.95 | 54,037 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 222,134 |
| Monarchies of Europe | 0 | - | 4.88 | 87,033 |
| Federal Subjects of Russia | 0 | - | 4.95 | 112,550 |
| Regions of France Map Quiz | 0 | - | 4.96 | 127,446 |
| States of Germany Map Quiz | 0 | - | 4.91 | 120,248 |
| Famous Irish People | 0 | - | 4.01 | 44,461 |
| Sweden Immigration by Country | 0 | - | 4.66 | 42,315 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,849 |
| States of the German Confederation in 1848 | 0 | - | 4.83 | 26,534 |
| Kings of Spain Quiz | 0 | - | 4.12 | 12,836 |
| Spain Cities Map Quiz | 0 | - | 4.86 | 86,274 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 169,337 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 93,601 |
| Switzerland Immigration by Country | 0 | - | 4.79 | 21,091 |
| British Spellings Quiz | 0 | - | 4.04 | 94,672 |
| British Groups of Things | 0 | - | 4.26 | 80,144 |
| UK Immigration by Country | 0 | - | 4.95 | 125,263 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,737 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 118,816 |
| British Monopoly Board | 0 | - | 4.51 | 39,248 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 100,090 |
| Geography of Scotland | 0 | - | 4.62 | 19,584 |
| English Monarchs Quiz | 0 | - | 4.91 | 447,214 |
| All Champions League Teams Ever | 0 | - | 4.89 | 104,546 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,466 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.90 | 92,820 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 82,244 |
| Category Elimination - African Geography #1 | 0 | - | 4.89 | 79,654 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 81,401 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,581 |
| European Geography By Letter - E | 0 | - | 4.21 | 105,516 |
| European Geography By Letter - F | 0 | - | 4.16 | 85,348 |
| European Geography By Letter - H | 0 | - | 4.31 | 88,960 |
| European Geography By Letter - G | 0 | - | 4.25 | 95,173 |
| European Geography By Letter - I | 0 | - | 4.10 | 88,865 |
| European Geography By Letter - K | 0 | - | 4.17 | 64,571 |
| European Geography By Letter - O | 0 | - | 4.28 | 57,827 |
| European Geography By Letter - R | 0 | - | 4.40 | 87,605 |
| European Geography by Letter - W | 0 | - | 4.22 | 78,307 |
| European Geography By Letter - T | 0 | - | 4.39 | 70,954 |
| European Geography By Letter - S #2 | 0 | - | 4.17 | 46,807 |
| Top 10 Coldest European Countries | 0 | - | 4.95 | 180,809 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 115,548 |
| European Geography A-Z | 0 | - | 4.37 | 45,415 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 247,061 |
| France Cities Map Quiz | 0 | - | 4.95 | 148,011 |
| France A-Z | 0 | - | 4.16 | 25,711 |
| Word Chain - France | 0 | - | 4.38 | 39,999 |
| Germany Country Quiz | 0 | - | 4.82 | 140,366 |
| Germany Cities Map Quiz | 0 | - | 4.84 | 106,044 |
| Ancient Greek Trivia | 0 | - | 4.55 | 63,402 |
| Italy Country Quiz | 0 | - | 4.81 | 108,984 |
| Regions of Italy Map Quiz | 0 | - | 4.95 | 133,788 |
| Italy Cities Map Quiz | 0 | - | 4.96 | 127,495 |
| Italian Foods | 0 | - | 4.25 | 64,252 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 9,912 |
| History of Spain Quiz | 0 | - | 4.33 | 19,573 |
| Languages of Spain | 0 | - | 4.34 | 21,346 |
| Spanish History A-Z | 0 | - | 4.30 | 11,292 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 65,784 |
| Wonderwall Lyrics | 0 | - | 4.22 | 68,809 |
| Famous Australians | 0 | - | 4.21 | 19,330 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.88 | 68,271 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 158,116 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,432 |
| Word Scramble - European Countries | 0 | - | 4.72 | 113,897 |
| Top 20 Football Clubs in Europe | 0 | - | 4.49 | 85,622 |
| Name a Major European City A-Z | 0 | - | 4.34 | 42,920 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 56,384 |
| Slavic Languages | 0 | - | 4.58 | 48,745 |
| Andorra Country Quiz | 0 | - | 4.87 | 27,903 |
| History of Germany Quiz | 0 | - | 4.35 | 40,147 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 584,525 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,726 |
| Roman Emperors | 0 | - | 4.95 | 95,940 |
| Geography of the Dutch Empire | 0 | - | 4.71 | 32,443 |
| Famous Nordic People | 0 | - | 4.40 | 10,678 |
| Geography of Spain | 0 | - | 4.52 | 20,351 |
| Word Chain - United Kingdom | 0 | - | 4.04 | 27,973 |
| Name a Valid English City | 0 | - | 4.16 | 15,331 |
| London A-Z | 0 | - | 4.19 | 38,492 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.92 | 46,462 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 255,425 |
| Famous Chinese People | 0 | - | 4.06 | 11,023 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 244,856 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 100,262 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 100,726 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 57,107 |
| Famous Canadians by Picture | 0 | - | 4.46 | 29,941 |
| Top European Languages on a Map | 0 | - | 4.76 | 118,205 |
| Famous Russians Quiz | 0 | - | 4.15 | 22,634 |
| Russia Multiple Choice | 0 | - | 4.55 | 38,102 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,078 |
| Movies Set in France | 0 | - | 4.23 | 12,510 |
| French Inventions | 0 | - | 4.08 | 13,340 |
| History of Paris | 0 | - | 4.20 | 12,685 |
| Kings of France Quiz | 0 | - | 4.15 | 30,221 |
| Word Chain - Germany | 0 | - | 4.29 | 21,093 |
| Ancient Greece A-Z | 0 | - | 4.65 | 20,748 |
| The Trojan War | 0 | - | 4.81 | 35,958 |
| Geography of Ancient Greece | 0 | - | 4.76 | 30,014 |
| Name that Greek Letter | 0 | - | 4.94 | 295,984 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 85,457 |
| Word Chain - Italy | 0 | - | 4.08 | 21,991 |
| Italy Multiple Choice | 0 | - | 4.74 | 93,910 |
| Embarrassing Chapters in Italian History | 0 | - | 4.20 | 11,149 |
| Switzerland A-Z | 0 | - | 4.40 | 18,462 |
| British to American Food Translation. | 0 | - | 3.47 | 50,458 |
| Fictional Characters from Great Britain | 0 | - | 4.10 | 31,227 |
| Beatles Songs Quiz | 0 | - | 4.95 | 207,780 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 273,859 |
| Asian Geography By Letter - A | 0 | - | 4.66 | 66,517 |
| Asian Geography by Letter - H | 0 | - | 4.47 | 61,128 |
| Asian Geography By Letter - M | 0 | - | 4.46 | 57,449 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 45,586 |
| Asian Geography By Letter - L | 0 | - | 4.45 | 38,458 |
| Asian Country Superlatives | 0 | - | 4.79 | 61,661 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.96 | 22,870 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,442 |
| Countries Closest to United States A-Z | 0 | - | 4.84 | 107,395 |
| Europe Map Quiz | 0 | - | 5.00 | 4,293,908 |
| Europe Geography Quiz #1 | 0 | - | 4.53 | 67,104 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 67,573 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 66,238 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 57,902 |
| Famous Swiss and Austrian People | 0 | - | 4.36 | 13,661 |
| Capitals of German States | 0 | - | 4.71 | 27,201 |
| Chancellors of Germany, 1949–present | 0 | - | 4.55 | 18,931 |
| Olympian Gods Quiz | 0 | - | 4.96 | 457,314 |
| Ancient Greek Words | 0 | - | 4.90 | 97,515 |
