| Australian Capitals | 0 | - | 4.92 | 62,657 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,600 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,763 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,204 |
| Australian States and Territories | 0 | - | 4.96 | 141,369 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,142 |
| Australia True or False | 0 | - | 4.87 | 56,671 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,743 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,124 |
| Australia Country Quiz | 0 | - | 4.43 | 69,437 |
| Regions of New Zealand | 0 | - | 4.85 | 28,401 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,294 |
| Flags of Oceania | 0 | - | 5.00 | 256,998 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,298 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,800 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,538 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 75,866 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,959 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,490 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,381 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,314 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,398 |
| Palau Country Quiz | 0 | - | 4.90 | 22,924 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,368 |
| Tonga Country Quiz | 0 | - | 4.82 | 20,442 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,036 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,864 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,160 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,197 |
| Animals of Australia | 0 | - | 4.52 | 42,235 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,788 |
| History of Russia Quiz | 0 | - | 4.49 | 31,844 |
| History of Italy | 0 | - | 4.55 | 31,898 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,567 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,686 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,092 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,348 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,851 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,716 |
| Name the English Monarchs | 0 | - | 4.92 | 500,126 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,674,093 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,851 |
| Official European Union Languages | 0 | - | 4.97 | 237,663 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,314 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,965 |
| The Trojan War | 0 | - | 4.83 | 39,567 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,631 |
| Name that Greek Letter | 0 | - | 4.93 | 322,549 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,167 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,288 |
| Roman Emperors | 0 | - | 4.95 | 119,243 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,645 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,588 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,426 |
| Countries by Founding Story | 0 | - | 4.95 | 76,874 |
| Independence from Whom | 0 | - | 4.99 | 210,807 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,331 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,213 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,652 |
| New Zealand Country Quiz | 0 | - | 4.70 | 75,744 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 47,871 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,564 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,927 |
| Asia Map Quiz | 0 | - | 4.99 | 910,972 |
| History of India | 0 | - | 4.61 | 21,350 |
| History of South Africa | 0 | - | 4.60 | 17,637 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,015 |
| Word Chain - Australia | 0 | - | 4.37 | 38,076 |
| History of Austria | 0 | - | 4.70 | 17,800 |
| Geography of the French Empire | 0 | - | 4.45 | 26,999 |
| The French Revolution | 0 | - | 4.46 | 23,862 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,425 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,077 |
| The Vikings! | 0 | - | 4.46 | 28,287 |
| The Portuguese Empire | 0 | - | 4.58 | 12,028 |
| History of Iran | 0 | - | 4.66 | 16,307 |
| History of China | 0 | - | 4.37 | 56,919 |
| Countries of Africa | 0 | - | 5.00 | 2,521,474 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,264 |
| African East Coast | 0 | - | 4.96 | 95,524 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,359 |
| Australia Map Quiz | 0 | - | 4.94 | 343,276 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,011 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,084 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,468 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,939 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,228 |
| Celtic Nations | 0 | - | 4.69 | 46,872 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,747 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,315 |
| The Only European Country ... | 0 | - | 4.91 | 215,144 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,323 |
| History of France | 0 | - | 4.59 | 56,630 |
| Ancient Greek Words | 0 | - | 4.93 | 111,099 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 42,755 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,667 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,264 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,095 |
| Geography of the British Empire | 0 | - | 4.48 | 39,584 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,196 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,127 |
| Countries that Have Controlled Mesopotamia | 0 | - | 4.15 | 15,520 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,148 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,125 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,827 |
| Recently Independent Countries | 0 | - | 4.98 | 158,380 |
| Historical City to Country | 0 | - | 4.84 | 78,328 |
| Countries by Former Name | 0 | - | 4.99 | 124,669 |
| Cities by Former Name | 0 | - | 4.84 | 91,265 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,315 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,648 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,226 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,897 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,683 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,842 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,759 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,216 |
| African Island Countries | 0 | - | 4.96 | 101,161 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,629 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,983 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,656 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,015 |
| Marshall Islands Country Quiz | 0 | - | 4.61 | 20,613 |
| Fiji Country Quiz | 0 | - | 4.78 | 24,185 |
| Kiribati Country Quiz | 0 | - | 4.70 | 18,976 |
| Federated States of Micronesia Country Quiz | 0 | - | 4.63 | 21,605 |
| Famous Australians by Description | 0 | - | 4.23 | 27,789 |
| Australian Slang | 0 | - | 4.25 | 28,543 |
| AFL Teams | 0 | - | 4.40 | 40,138 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,795 |
| Vanuatu Country Quiz | 0 | - | 4.59 | 22,808 |
| Solomon Islands Country Quiz | 0 | - | 4.56 | 18,998 |
| Nauru Country Quiz | 0 | - | 4.53 | 23,247 |
| Papua New Guinea Country Quiz | 0 | - | 4.60 | 30,605 |
| Samoa Country Quiz | 0 | - | 4.80 | 20,720 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,403 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,523 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,838 |
| History of Mexico | 0 | - | 4.58 | 15,261 |
| North America Map Quiz | 0 | - | 4.98 | 246,556 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,543 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,506 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,389 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,695 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,941 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,281 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,868 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,683 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,826 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,316 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,123 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,157 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,705 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,442 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,760 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,104 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,322 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,473 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,351 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,741 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,528 |
| Slavic Countries | 0 | - | 4.96 | 111,259 |
| Austria... or Australia? | 0 | - | 4.68 | 104,104 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,198 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,157 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,870 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,842 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,147 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,153 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,836 |
| History of The Netherlands | 0 | - | 4.46 | 17,361 |
| History of Spain | 0 | - | 4.29 | 21,045 |
| Medieval English History | 0 | - | 4.53 | 43,403 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,821 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,233 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,731 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,585 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,311 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,975 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,028 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,591 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,524 |
| Countries of the Middle East | 0 | - | 4.96 | 199,860 |
| Ottoman Empire Quiz | 0 | - | 4.42 | 17,077 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,361 |
| Chinese Inventions | 0 | - | 4.30 | 33,756 |
| Former Flags | 0 | - | 4.97 | 107,174 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,367 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,183 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,895 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,127 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,674 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 52,780 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,099 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,916 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,389 |
| Flags of North and South America | 0 | - | 4.99 | 370,168 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,561 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,017,286 |
