| Foods in a Full English Breakfast | 0 | - | 4.46 | 104,003 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,296 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,655 |
| States of Germany | 0 | - | 4.95 | 155,076 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,872 |
| Regions of Italy | 0 | - | 4.92 | 77,342 |
| Italian Foods | 0 | - | 4.30 | 73,437 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,979 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,697 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,973 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,539 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,493 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,425 |
| Departments of France | 0 | - | 4.93 | 55,495 |
| German Groups of Things | 0 | - | 4.47 | 38,685 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,801 |
| England or Wales? | 0 | - | 4.94 | 46,108 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,895 |
| Official European Union Languages | 0 | - | 4.97 | 240,483 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,899 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,619 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,326 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,457 |
| Name that Greek Letter | 0 | - | 4.93 | 325,432 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,415 |
| Word Chain - France | 0 | - | 4.38 | 42,979 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,854 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,703 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,306 |
| The Trojan War | 0 | - | 4.83 | 40,127 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,376 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,125 |
| British Groups of Things | 0 | - | 4.26 | 83,055 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,136 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,144 |
| British to American Food Translation | 0 | - | 3.38 | 52,068 |
| Celtic Nations | 0 | - | 4.61 | 47,131 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,598 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,270 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,864 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,540 |
| 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 | 313,374 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,830 |
| Regions of France | 0 | - | 4.70 | 122,531 |
| France Immigration by Country | 0 | - | 4.70 | 77,048 |
| Famous Germans | 0 | - | 4.50 | 55,903 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,777 |
| Germany True or False? | 0 | - | 4.61 | 49,093 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,539 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,624 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,591 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,988 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,417 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,521 |
| 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 | 804,869 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,866 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,143 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,544 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,830 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,300 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,944 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,381 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,248 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,071 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,886 |
| 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 | 466,992 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,705 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,397 |
| 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 | 1,018,858 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,375 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,642 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 111,255 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 90,078 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,847 |
| Greece Country Quiz | 0 | - | 4.74 | 66,753 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,462 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,509 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,879 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 176,033 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,967 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,569 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,688 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,219 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,034 |
| Famous French People | 0 | - | 4.05 | 36,203 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,190 |
| Germany Country Quiz | 0 | - | 4.82 | 159,182 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,325 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,515 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,306 |
| The Mafia Quiz | 0 | - | 4.46 | 23,458 |
| History of The Netherlands | 0 | - | 4.46 | 17,582 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,664 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,109 |
| Canary Islands | 0 | - | 4.62 | 17,551 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,202 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,194 |
| British Spellings | 0 | - | 4.06 | 99,645 |
| British Acronyms | 0 | - | 4.40 | 46,000 |
| UK Immigration by Country | 0 | - | 4.94 | 141,964 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,400 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,147 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,242 |
| Geography of Scotland | 0 | - | 4.63 | 21,841 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,635 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,659 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 98,016 |
| Name a Valid Asian Country | 0 | - | 4.98 | 122,031 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,675 |
| Name a Valid African Country | 0 | - | 4.98 | 155,389 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 338,411 |
| 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 | 142,515 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,770 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,098 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,347 |
| Slavic Languages | 0 | - | 4.67 | 54,812 |
| 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 | 38,371 |
| French History Multiple Choice | 0 | - | 4.55 | 33,289 |
| History of Germany | 0 | - | 4.39 | 53,012 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,592 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,558 |
| 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 | 61,863 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,673 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,083 |
| 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 | 21,702 |
| American Foods | 0 | - | 3.66 | 39,462 |
| Countries that Beat the United States | 0 | - | 4.93 | 169,026 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,174 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,068 |
| History of Russia Quiz | 0 | - | 4.47 | 32,033 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,917 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,822 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,480 |
| 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 | 23,264 |
| History of Italy | 0 | - | 4.55 | 32,201 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,588 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,189 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,740 |
| Roman Emperors | 0 | - | 4.95 | 121,539 |
| 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 | 43,325 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,052 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,652 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,485 |
| Geography of Spain | 0 | - | 4.59 | 22,304 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,587 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,557 |
| People on Money - England | 0 | - | 4.30 | 21,351 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 281,155 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,627 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,775 |
| Countries That Produce the Most Spices | 0 | - | 4.44 | 41,721 |
| Countries that Produce the Most Cheese per Capita | 0 | - | 4.51 | 53,139 |
| Fruit and Vegetable Emojis | 0 | - | 4.45 | 91,203 |
| Countries Which Eat the Most Beef | 0 | - | 4.46 | 50,436 |
| Countries by Milk Production | 0 | - | 4.54 | 44,330 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,495 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,590 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 122,036 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,601 |
| European Geography By Letter - D | 0 | - | 4.49 | 119,156 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,530 |
| European Geography By Letter - M | 0 | - | 4.70 | 133,067 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,452 |
| European Geography By Letter - R | 0 | - | 4.43 | 95,027 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,292 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,933 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,691 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,674 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,650 |
| 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 |
