| Foods in a Full English Breakfast | 0 | - | 4.46 | 104,006 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,304 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,676 |
| States of Germany | 0 | - | 4.95 | 155,079 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,874 |
| Regions of Italy | 0 | - | 4.92 | 77,344 |
| Italian Foods | 0 | - | 4.30 | 73,441 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,982 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,698 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,975 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,554 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,499 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,428 |
| Departments of France | 0 | - | 4.93 | 55,498 |
| German Groups of Things | 0 | - | 4.47 | 38,685 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,801 |
| England or Wales? | 0 | - | 4.94 | 46,110 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,898 |
| Official European Union Languages | 0 | - | 4.97 | 240,489 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,899 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,636 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,327 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,470 |
| Name that Greek Letter | 0 | - | 4.93 | 325,440 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,417 |
| Word Chain - France | 0 | - | 4.38 | 42,979 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,857 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,704 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,306 |
| The Trojan War | 0 | - | 4.83 | 40,129 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,382 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,125 |
| British Groups of Things | 0 | - | 4.26 | 83,057 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,136 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,153 |
| British to American Food Translation | 0 | - | 3.38 | 52,068 |
| Celtic Nations | 0 | - | 4.61 | 47,133 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,599 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,270 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,877 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,541 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,494 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,184 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,378 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,841 |
| Regions of France | 0 | - | 4.70 | 122,538 |
| France Immigration by Country | 0 | - | 4.70 | 77,049 |
| Famous Germans | 0 | - | 4.50 | 55,905 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,778 |
| Germany True or False? | 0 | - | 4.61 | 49,095 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,540 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,624 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,594 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,989 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,417 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,522 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 70,055 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,118 |
| Counties of England | 0 | - | 4.97 | 804,879 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,867 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,167 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,544 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,832 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,308 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,947 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,392 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,255 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,079 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,895 |
| French Foods | 0 | - | 4.00 | 27,789 |
| States of Germany Map Quiz | 0 | - | 4.92 | 134,077 |
| Word Chain - Germany | 0 | - | 4.31 | 22,704 |
| Word Chain - Italy | 0 | - | 4.07 | 23,237 |
| UK Cities Map Quiz | 0 | - | 4.96 | 467,000 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,707 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,398 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,428 |
| Name a Valid English City | 0 | - | 4.19 | 16,849 |
| Champions League Winners | 0 | - | 4.92 | 1,018,927 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,375 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,643 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,256 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 90,079 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,849 |
| Greece Country Quiz | 0 | - | 4.74 | 66,753 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,462 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,510 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,879 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 176,040 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,968 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,575 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,704 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,222 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,038 |
| Famous French People | 0 | - | 4.05 | 36,204 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,223 |
| Germany Country Quiz | 0 | - | 4.82 | 159,189 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,327 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,516 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,310 |
| The Mafia Quiz | 0 | - | 4.46 | 23,458 |
| History of The Netherlands | 0 | - | 4.46 | 17,582 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,668 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,110 |
| Canary Islands | 0 | - | 4.62 | 17,553 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,203 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,194 |
| British Spellings | 0 | - | 4.06 | 99,646 |
| British Acronyms | 0 | - | 4.40 | 46,001 |
| UK Immigration by Country | 0 | - | 4.94 | 141,966 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,404 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,151 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,242 |
| Geography of Scotland | 0 | - | 4.63 | 21,842 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,639 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,663 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 98,020 |
| Name a Valid Asian Country | 0 | - | 4.98 | 122,032 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,682 |
| Name a Valid African Country | 0 | - | 4.98 | 155,392 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 338,416 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,816 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,744 |
| Word Scramble - European Countries | 0 | - | 4.72 | 142,517 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,802 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,101 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,350 |
| Slavic Languages | 0 | - | 4.67 | 54,813 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,690 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,172 |
| France A-Z | 0 | - | 4.16 | 38,372 |
| French History Multiple Choice | 0 | - | 4.55 | 33,289 |
| History of Germany | 0 | - | 4.39 | 53,012 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,594 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,563 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,910 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,765 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,867 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,673 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,086 |
| Switzerland A-Z | 0 | - | 4.45 | 25,805 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,179 |
| Malta Country Quiz | 0 | - | 4.81 | 31,277 |
| Topological Map of Asia Quiz | 0 | - | 4.83 | 20,596 |
| Topological Map of Africa Quiz | 0 | - | 4.81 | 21,704 |
| American Foods | 0 | - | 3.66 | 39,462 |
| Countries that Beat the United States | 0 | - | 4.93 | 169,027 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,178 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,069 |
| History of Russia Quiz | 0 | - | 4.47 | 32,033 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,917 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,823 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,481 |
| Movies Set in France | 0 | - | 4.26 | 13,166 |
| French Inventions | 0 | - | 4.10 | 13,933 |
| History of Paris | 0 | - | 4.24 | 13,687 |
| Mediterranean Foods | 0 | - | 3.74 | 11,517 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,265 |
| History of Italy | 0 | - | 4.55 | 32,202 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,591 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,189 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,744 |
| Roman Emperors | 0 | - | 4.95 | 121,547 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,868 |
| Famous Nordic People | 0 | - | 4.34 | 20,364 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,508 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,327 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,055 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,652 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,486 |
| Geography of Spain | 0 | - | 4.59 | 22,305 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,588 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,558 |
| People on Money - England | 0 | - | 4.30 | 21,381 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 281,159 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,628 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,779 |
| Countries That Produce the Most Spices | 0 | - | 4.44 | 41,722 |
| Countries that Produce the Most Cheese per Capita | 0 | - | 4.51 | 53,140 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 91,205 |
| Countries Which Eat the Most Beef | 0 | - | 4.46 | 50,437 |
| Countries by Milk Production | 0 | - | 4.54 | 44,330 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,496 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,600 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 122,047 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,616 |
| European Geography By Letter - D | 0 | - | 4.49 | 119,173 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,550 |
| European Geography By Letter - M | 0 | - | 4.70 | 133,079 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,461 |
| European Geography By Letter - R | 0 | - | 4.43 | 95,034 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,298 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,941 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,781 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,679 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,651 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,807 |
| Capitals of French Regions | 0 | - | 4.45 | 16,218 |
| Kings of France Quiz | 0 | - | 4.22 | 32,979 |
