| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,689 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,818 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,725 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,432 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,083 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,422 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,122 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,620 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,136 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,365 |
| Departments of France | 0 | - | 4.93 | 54,292 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,572 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,631 |
| England or Wales? | 0 | - | 4.94 | 45,750 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,241 |
| Official European Union Languages | 0 | - | 4.97 | 238,721 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,994 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,631 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,314 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,284 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,113 |
| The Trojan War | 0 | - | 4.83 | 39,770 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,033 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,600 |
| Roman Emperors | 0 | - | 4.95 | 120,239 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,813 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,779 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,046 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,869 |
| Last Names by Country of Origin | 0 | - | 4.64 | 156,594 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,874 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,462 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,939 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,440 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,401 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,128 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,030 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,197 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,409 |
| Celtic Nations | 0 | - | 4.69 | 46,967 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,319 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,982 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,269 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,272 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,248 |
| German Groups of Things | 0 | - | 4.46 | 38,496 |
| Geography of Spain | 0 | - | 4.59 | 22,091 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,881 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,350 |
| Champions League Winners | 0 | - | 4.91 | 1,008,454 |
| NFL Football Last Names | 0 | - | 4.43 | 171,668 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,367 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,209 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,564 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,263 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,253 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,765 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,144 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,667 |
| Countries Bordering France | 0 | - | 4.83 | 402,934 |
| States of Germany | 0 | - | 4.95 | 152,905 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,174 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,802 |
| Regions of Italy | 0 | - | 4.92 | 76,093 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,310 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,175 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,967 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,194 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,313 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,096 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,725 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,419 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,887 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,101 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,828 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,285 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,474 |
| Name a Valid African Country | 0 | - | 4.98 | 154,231 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,715 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,534 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,576 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,889 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,739 |
| Austria... or Australia? | 0 | - | 4.68 | 104,444 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,952 |
| Word Chain - France | 0 | - | 4.38 | 42,805 |
| Germany Country Quiz | 0 | - | 4.83 | 158,036 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,495 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,039 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,936 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,530 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,183 |
| Italian Foods | 0 | - | 4.30 | 72,855 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,376 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,023 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,814 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,142 |
| British Groups of Things | 0 | - | 4.25 | 82,892 |
| British to American Food Translation | 0 | - | 3.38 | 51,972 |
| UK Immigration by Country | 0 | - | 4.94 | 141,045 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,047 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,019 |
| British Monopoly Board | 0 | - | 4.52 | 41,184 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,812 |
| Name the English Monarchs | 0 | - | 4.91 | 503,390 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,726 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,203 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,947 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,131 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,668 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,627 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,219 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,625 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,667 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,784 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,324 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,552 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,223 |
| Slavic Languages | 0 | - | 4.68 | 54,416 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,963 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,630 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,411 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,945 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,075 |
| France A-Z | 0 | - | 4.16 | 38,230 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,914 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,233 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,616 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,073 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,026 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,224 |
| Name that Greek Letter | 0 | - | 4.93 | 324,014 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,776 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,691 |
| Counties of Ireland | 0 | - | 4.92 | 195,724 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,638 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,927 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,581 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,201 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,770 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,973 |
| Roman Names for Places | 0 | - | 4.62 | 58,355 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,386 |
| Modern Day Countries of the Portuguese Empire on a Map | 0 | - | 4.56 | 51,828 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,498 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,201 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,014 |
| Switzerland A-Z | 0 | - | 4.45 | 25,665 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,253 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,060 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,816 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,567 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,742 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,918 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,190 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,042 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 489,896 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 713,313 |
| MLB Baseball Last Names | 0 | - | 4.19 | 19,123 |
| Famous Child Stars by Last Name | 0 | - | 4.15 | 13,515 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,218 |
| History of Russia Quiz | 0 | - | 4.47 | 31,941 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,761 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,992 |
| Word Chain - Germany | 0 | - | 4.31 | 22,600 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,160 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,427 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,264 |
| Famous Irish People | 0 | - | 4.05 | 46,010 |
| History of Italy | 0 | - | 4.55 | 32,027 |
| Word Chain - Italy | 0 | - | 4.07 | 23,172 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,865 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,698 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,944 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,273 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,349 |
| Name a Valid English City | 0 | - | 4.19 | 16,738 |
| British Geography A-Z | 0 | - | 4.42 | 19,538 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,681 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,680 |
| London A-Z | 0 | - | 4.10 | 40,797 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,985 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,435 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,227 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,478 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,880 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,165 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,796 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,649 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,858 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,666 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,963 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,811 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,104 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,562 |
| Europe Map Quiz | 0 | - | 5.00 | 4,767,329 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,702 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,510 |
| Capitals of French Regions | 0 | - | 4.45 | 16,094 |
| Regions of France | 0 | - | 4.72 | 121,023 |
