| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,690 |
| 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 | 59,433 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,094 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,423 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,127 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,625 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,140 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,372 |
| Departments of France | 0 | - | 4.93 | 54,298 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,574 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,631 |
| England or Wales? | 0 | - | 4.94 | 45,752 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,243 |
| Official European Union Languages | 0 | - | 4.97 | 238,728 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,004 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,637 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,314 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,287 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,116 |
| The Trojan War | 0 | - | 4.83 | 39,770 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,040 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,602 |
| Roman Emperors | 0 | - | 4.95 | 120,242 |
| 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 | 41,874 |
| Last Names by Country of Origin | 0 | - | 4.64 | 156,594 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,897 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,463 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,943 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,452 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,402 |
| 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 | 357,223 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,409 |
| Celtic Nations | 0 | - | 4.69 | 46,968 |
| 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 | 38,497 |
| Geography of Spain | 0 | - | 4.59 | 22,091 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,883 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,351 |
| Champions League Winners | 0 | - | 4.91 | 1,008,489 |
| NFL Football Last Names | 0 | - | 4.43 | 171,668 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,370 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,211 |
| 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 | 95,254 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,772 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,151 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,676 |
| Countries Bordering France | 0 | - | 4.83 | 402,954 |
| States of Germany | 0 | - | 4.95 | 152,908 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,179 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,836 |
| Regions of Italy | 0 | - | 4.92 | 76,097 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,313 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,175 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,968 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,198 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,314 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,098 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,726 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,424 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,890 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,102 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,828 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,287 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,477 |
| Name a Valid African Country | 0 | - | 4.98 | 154,233 |
| 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 | 261,586 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,892 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,740 |
| Austria... or Australia? | 0 | - | 4.68 | 104,445 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,955 |
| Word Chain - France | 0 | - | 4.38 | 42,806 |
| Germany Country Quiz | 0 | - | 4.83 | 158,043 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,495 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,040 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,937 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,530 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,184 |
| Italian Foods | 0 | - | 4.30 | 72,860 |
| 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 | 185,816 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,143 |
| British Groups of Things | 0 | - | 4.25 | 82,892 |
| British to American Food Translation | 0 | - | 3.38 | 51,973 |
| UK Immigration by Country | 0 | - | 4.94 | 141,049 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,047 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,023 |
| British Monopoly Board | 0 | - | 4.52 | 41,184 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,817 |
| Name the English Monarchs | 0 | - | 4.91 | 503,399 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,736 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,205 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,950 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,133 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,670 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,627 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,222 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,626 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,667 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,789 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,337 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,553 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,224 |
| Slavic Languages | 0 | - | 4.68 | 54,419 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,965 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,630 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,423 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,949 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,076 |
| 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 | 106,619 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,077 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,028 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,242 |
| Name that Greek Letter | 0 | - | 4.93 | 324,018 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,777 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,691 |
| Counties of Ireland | 0 | - | 4.92 | 195,756 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,639 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,928 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,583 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,202 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,771 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,975 |
| Roman Names for Places | 0 | - | 4.62 | 58,357 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,387 |
| 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 | 227,202 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,016 |
| Switzerland A-Z | 0 | - | 4.45 | 25,665 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,255 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,066 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,817 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,569 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,745 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,920 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,192 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,043 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 489,910 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 713,321 |
| 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 | 132,221 |
| 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 | 22,601 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,160 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,439 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,268 |
| Famous Irish People | 0 | - | 4.05 | 46,010 |
| History of Italy | 0 | - | 4.55 | 32,027 |
| Word Chain - Italy | 0 | - | 4.07 | 23,173 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,868 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,701 |
| 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 | 78,682 |
| 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 | 268,439 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,227 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,480 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,888 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,169 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,800 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,650 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,860 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,667 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,964 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,812 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,105 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,564 |
| Europe Map Quiz | 0 | - | 5.00 | 4,767,407 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,703 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,511 |
| Capitals of French Regions | 0 | - | 4.45 | 16,094 |
| Regions of France | 0 | - | 4.72 | 121,027 |
