| Australian Capitals | 0 | - | 4.92 | 62,760 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,494 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,072 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,985 |
| Australian States and Territories | 0 | - | 4.96 | 142,287 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,373 |
| Australia True or False | 0 | - | 4.87 | 56,964 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,217 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,444 |
| Australia Country Quiz | 0 | - | 4.43 | 69,679 |
| Regions of New Zealand | 0 | - | 4.84 | 28,601 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,594 |
| Flags of Oceania | 0 | - | 5.00 | 260,710 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,727 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,754 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,791 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,616 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,142 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,359 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,172 |
| Palau Country Quiz | 0 | - | 4.90 | 23,060 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,485 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,872 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,557 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,777 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,045 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,758 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,121 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,650 |
| Animals of Australia | 0 | - | 4.52 | 42,380 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,288 |
| History of Russia Quiz | 0 | - | 4.47 | 31,957 |
| History of Italy | 0 | - | 4.55 | 32,062 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,725 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,325 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,307 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,082 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,538 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,968 |
| Name the English Monarchs | 0 | - | 4.91 | 504,158 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.82 | 54,972 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,561 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,709,887 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,354 |
| Official European Union Languages | 0 | - | 4.97 | 238,974 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,171 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,570 |
| The Trojan War | 0 | - | 4.83 | 39,808 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,114 |
| Name that Greek Letter | 0 | - | 4.93 | 324,227 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,296 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,664 |
| Roman Emperors | 0 | - | 4.95 | 120,442 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,230 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,530 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,890 |
| Countries by Founding Story | 0 | - | 4.95 | 77,411 |
| Independence from Whom | 0 | - | 4.99 | 212,198 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,804 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,618 |
| AFL Teams | 0 | - | 4.42 | 40,578 |
| New Zealand Country Quiz | 0 | - | 4.70 | 76,102 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 48,125 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,213 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,854 |
| Asia Map Quiz | 0 | - | 4.99 | 920,041 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,324 |
| History of South Africa | 0 | - | 4.60 | 17,723 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,273 |
| Word Chain - Australia | 0 | - | 4.38 | 38,174 |
| History of Austria | 0 | - | 4.70 | 17,913 |
| Geography of the French Empire | 0 | - | 4.45 | 27,158 |
| The French Revolution | 0 | - | 4.47 | 24,071 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,033 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,567 |
| The Vikings! | 0 | - | 4.46 | 28,372 |
| The Portuguese Empire | 0 | - | 4.58 | 12,086 |
| History of Iran | 0 | - | 4.66 | 16,384 |
| History of China | 0 | - | 4.37 | 57,354 |
| History of India | 0 | - | 4.62 | 21,462 |
| Australia Map Quiz | 0 | - | 4.95 | 345,268 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,158 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,873 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,747 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,655 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,140 |
| Celtic Nations | 0 | - | 4.69 | 47,003 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,122 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,757 |
| The Only European Country ... | 0 | - | 4.91 | 217,512 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,648 |
| History of France | 0 | - | 4.61 | 57,302 |
| Ancient Greek Words | 0 | - | 4.93 | 111,941 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 43,048 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,922 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,410 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,729 |
| Geography of the British Empire | 0 | - | 4.48 | 39,744 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,360 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,046 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,584 |
| Countries of Africa | 0 | - | 5.00 | 2,546,136 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,142 |
| African East Coast | 0 | - | 4.96 | 96,318 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,183 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,314 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,857 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,394 |
| Recently Independent Countries | 0 | - | 4.98 | 159,515 |
| Historical City to Country | 0 | - | 4.84 | 78,658 |
| Countries by Former Name | 0 | - | 4.99 | 125,386 |
| Cities by Former Name | 0 | - | 4.83 | 91,753 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,701 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,080 |
| Marshall Islands Country Quiz | 0 | - | 4.62 | 20,744 |
| Fiji Country Quiz | 0 | - | 4.78 | 24,326 |
| Kiribati Country Quiz | 0 | - | 4.70 | 19,082 |
| Federated States of Micronesia Country Quiz | 0 | - | 4.63 | 21,731 |
| Famous Australians by Description | 0 | - | 4.23 | 28,013 |
| Australian Slang | 0 | - | 4.24 | 28,656 |
| Prime Ministers of Australia | 0 | - | 4.50 | 32,020 |
| Vanuatu Country Quiz | 0 | - | 4.59 | 22,965 |
| Solomon Islands Country Quiz | 0 | - | 4.56 | 19,113 |
| Nauru Country Quiz | 0 | - | 4.53 | 23,390 |
| Papua New Guinea Country Quiz | 0 | - | 4.60 | 30,745 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,728 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,427 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,152 |
| History of Mexico | 0 | - | 4.58 | 15,339 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,646 |
| North America Map Quiz | 0 | - | 4.98 | 249,593 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,815 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,050 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,401 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,677 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,500 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,665 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,325 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,975 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,607 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,436 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,358 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,964 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,474 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,490 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,384 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,576 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,535 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,372 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,694 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,613 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,448 |
| Slavic Countries | 0 | - | 4.96 | 111,928 |
| Austria... or Australia? | 0 | - | 4.68 | 104,519 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,512 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,490 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,673 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,087 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,951 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,435 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,176 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,291 |
| History of The Netherlands | 0 | - | 4.46 | 17,491 |
| History of Spain | 0 | - | 4.23 | 21,122 |
| Medieval English History | 0 | - | 4.53 | 43,578 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,436 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,064 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,395 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,252 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,283 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,832 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,678 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,852 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,160 |
| Countries of the Middle East | 0 | - | 4.96 | 201,764 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,610 |
| Chinese Inventions | 0 | - | 4.30 | 33,826 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,530 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,118 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,415 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,822 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,524 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,458 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,902 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,506 |
| African Island Countries | 0 | - | 4.96 | 101,905 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,928 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,439 |
| Former Flags | 0 | - | 4.97 | 108,009 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,573 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,088 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,460 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,598 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,054 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 53,668 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,790 |
| Flags of North and South America | 0 | - | 4.99 | 374,531 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,063 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,251 |
| Events in U.S. History | 0 | - | 4.41 | 28,720 |
