| North America Map Quiz | 0 | - | 4.98 | 251,071 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,938 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,487 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,062 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,172 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,993 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,560 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,277 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,599 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,660 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,889 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,676 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,725 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,375 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,318 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,698 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,710 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,158 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,929 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,585 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,696 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,447 |
| North American Physical Geography | 0 | - | 4.35 | 30,452 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,472 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,360 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,424 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,709 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,148 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,991 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,545 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,380 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,620 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,121 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,552 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,296 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,769 |
| Name the English Monarchs | 0 | - | 4.91 | 505,688 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,414 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.82 | 55,118 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,123 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,823 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,720,706 |
| History of Russia Quiz | 0 | - | 4.47 | 31,992 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,024 |
| Name that Greek Letter | 0 | - | 4.93 | 324,762 |
| History of Italy | 0 | - | 4.55 | 32,118 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,792 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,401 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,057 |
| Prime Ministers of the UK | 0 | - | 4.95 | 441,691 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,693 |
| The U.S. Pledge of Allegiance | 0 | - | 4.00 | 18,401 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,794 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,880 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,438 |
| Europe Map Quiz | 0 | - | 5.00 | 4,782,475 |
| The Trojan War | 0 | - | 4.83 | 39,945 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,763 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,519 |
| Roman Emperors | 0 | - | 4.95 | 120,983 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,365 |
| Australian Capitals | 0 | - | 4.92 | 62,812 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,432 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,610 |
| Official European Union Languages | 0 | - | 4.97 | 239,538 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,513 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,404 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 58,427 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,221 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,243 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,414 |
| Asia Map Quiz | 0 | - | 4.99 | 923,690 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,708 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,931 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,058 |
| Countries by Founding Story | 0 | - | 4.95 | 77,686 |
| Independence from Whom | 0 | - | 4.99 | 212,786 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,241 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,768 |
| History of South Africa | 0 | - | 4.60 | 17,747 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,329 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,308 |
| New World Crops | 0 | - | 4.38 | 30,942 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,111 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,586 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,864 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,432 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,251 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,835 |
| The Only European Country ... | 0 | - | 4.91 | 218,542 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,254 |
| History of Austria | 0 | - | 4.70 | 17,962 |
| Geography of the French Empire | 0 | - | 4.45 | 27,202 |
| The French Revolution | 0 | - | 4.47 | 24,124 |
| History of France | 0 | - | 4.61 | 57,508 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,549 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 75,078 |
| Ancient Greek Words | 0 | - | 4.93 | 112,302 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 43,242 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,441 |
| The Vikings! | 0 | - | 4.46 | 28,397 |
| The Portuguese Empire | 0 | - | 4.58 | 12,096 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,016 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,442 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,150 |
| Geography of the British Empire | 0 | - | 4.48 | 39,826 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,769 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,602 |
| History of Iran | 0 | - | 4.66 | 16,409 |
| History of China | 0 | - | 4.35 | 57,506 |
| History of India | 0 | - | 4.62 | 21,494 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,685 |
| African East Coast | 0 | - | 4.96 | 96,620 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,460 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,761 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,461 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,904 |
| Recently Independent Countries | 0 | - | 4.98 | 159,825 |
| Historical City to Country | 0 | - | 4.85 | 78,905 |
| Countries by Former Name | 0 | - | 4.99 | 125,677 |
| Cities by Former Name | 0 | - | 4.83 | 91,953 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,220 |
| All Modern-Day Countries Ever Controlled by Arab People with a Map | 0 | - | 4.98 | 55,644 |
| Australia Map Quiz | 0 | - | 4.95 | 345,889 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,162 |
| History of Mexico | 0 | - | 4.52 | 15,358 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,765 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,290 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,500 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,782 |
| The Most Recent... United States | 0 | - | 4.46 | 18,551 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,836 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,886 |
| Celtic Nations | 0 | - | 4.61 | 47,072 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,194 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,015 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,585 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,275 |
| History of The Netherlands | 0 | - | 4.46 | 17,535 |
| Medieval English History | 0 | - | 4.53 | 43,627 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,546 |
| Chinese Inventions | 0 | - | 4.30 | 33,851 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,618 |
| Countries of Africa | 0 | - | 5.00 | 2,554,801 |
| Australian States and Territories | 0 | - | 4.96 | 142,693 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,454 |
| Australia True or False | 0 | - | 4.87 | 57,090 |
| Flags of North and South America | 0 | - | 4.99 | 376,168 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,486 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,816 |
| Peru True or False? | 0 | - | 4.58 | 15,303 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,767 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,622 |
| Events in U.S. History | 0 | - | 4.41 | 28,792 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,180 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,350 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,470 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,495 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,116 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,313 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,890 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,481 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,461 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,832 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,201 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,348 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,894 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,376 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,654 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,928 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,331 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,201 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,160 |
| Official and Regional Languages of Europe on a Map | 0 | - | 4.99 | 112,985 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,006 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,677 |
| Slavic Countries | 0 | - | 4.96 | 112,234 |
| French History Multiple Choice | 0 | - | 4.55 | 33,196 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,643 |
| History of Germany | 0 | - | 4.39 | 52,957 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,201 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,804 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,934 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,518 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,193 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,173 |
| Roman Names for Places | 0 | - | 4.62 | 58,637 |
| Byzantine History | 0 | - | 4.91 | 28,998 |
| Byzantine Emperors | 0 | - | 4.93 | 14,527 |
| History of Spain | 0 | - | 4.23 | 21,149 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,291 |
| Counties of England | 0 | - | 4.97 | 801,720 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,813 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,922 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,232 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,899 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,284 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,059 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,536 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,736 |
