| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,104 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,488 |
| States of Brazil | 0 | - | 4.98 | 86,617 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,396 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,152 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,324 |
| Peru Country Quiz | 0 | - | 4.54 | 48,369 |
| States of Mexico | 0 | - | 4.95 | 173,736 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,947 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,418 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,218 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,485 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,164 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,211 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,402 |
| Chile Country Quiz | 0 | - | 4.75 | 39,786 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,658 |
| The Trojan War | 0 | - | 4.83 | 39,475 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,741 |
| Which South American Country? | 0 | - | 4.69 | 51,752 |
| Flags of North and South America | 0 | - | 4.99 | 368,239 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,386 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,143 |
| South American Physical Geography | 0 | - | 4.58 | 18,284 |
| Belize Country Quiz | 0 | - | 4.85 | 20,830 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,074 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,793 |
| Guyana Country Quiz | 0 | - | 4.49 | 22,635 |
| Countries that Beat Brazil | 0 | - | 4.49 | 67,984 |
| Venezuela Country Quiz | 0 | - | 4.50 | 30,439 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,128 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,081 |
| Suriname Country Quiz | 0 | - | 4.60 | 19,694 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,076 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,697 |
| The Only American Country ... | 0 | - | 4.92 | 120,876 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,430 |
| South American Cities on the Map | 0 | - | 4.57 | 35,263 |
| US States Quiz | 0 | - | 5.00 | 16,725,425 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,504 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,101 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,557 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,593 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,238 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,142 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,602 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,040 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,168 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,052 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,329 |
| History of Mexico | 0 | - | 4.58 | 15,239 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,265 |
| Central American Countries | 0 | - | 4.98 | 155,194 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,193 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,265 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,768 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,352 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,312 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,651 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,566 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,716 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,141 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,195 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,508 |
| Name the English Monarchs | 0 | - | 4.92 | 498,669 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,106 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,170 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,596 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 31,968 |
| Cuba Country Quiz | 0 | - | 4.69 | 51,230 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,892 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,395 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,845 |
| Pixelated United States Map | 0 | - | 4.89 | 93,598 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,633 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,966 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,553 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,736 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,660,605 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,563 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,881 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,501 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,548 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,835 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,089 |
| U.S. States By Population | 0 | - | 4.92 | 152,490 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,535 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,957 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,722 |
| US States with an Empty Map | 0 | - | 5.00 | 619,606 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,671 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,805 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,972 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,173 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,007 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,481 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,939 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 94,903 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,109 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,804 |
| Name that Greek Letter | 0 | - | 4.94 | 321,918 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,996 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,123 |
| Roman Emperors | 0 | - | 4.95 | 118,658 |
| Prime Ministers of the UK | 0 | - | 4.96 | 435,214 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 54,026 |
| American Founding Fathers | 0 | - | 4.41 | 23,085 |
| People on Money - United States | 0 | - | 4.31 | 63,225 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,275 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,758 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,995 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,001 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,812 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,209 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,602 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,711 |
| History of Russia Quiz | 0 | - | 4.49 | 31,804 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,016 |
| History of Italy | 0 | - | 4.55 | 31,850 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,503 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,011 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,609 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,722 |
| South America A-Z | 0 | - | 4.13 | 10,847 |
| El Salvador Country Quiz | 0 | - | 4.62 | 31,515 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,247 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,720 |
| Panama Country Quiz | 0 | - | 4.61 | 25,630 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,402 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.66 | 21,947 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,245 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,660 |
| Grenada Country Quiz | 0 | - | 4.62 | 18,807 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,645 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,037 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,136 |
| History of Pennsylvania | 0 | - | 4.16 | 7,093 |
| History of Virginia | 0 | - | 4.31 | 11,562 |
| Events in U.S. History | 0 | - | 4.40 | 28,506 |
| Europe Map Quiz | 0 | - | 5.00 | 4,735,676 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,007 |
| Ancient Greek Words | 0 | - | 4.92 | 110,828 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,676 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,309 |
| History of India | 0 | - | 4.61 | 21,304 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,095 |
| History of South Africa | 0 | - | 4.60 | 17,618 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,274 |
| Australian Capitals | 0 | - | 4.92 | 62,608 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,757 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,386 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,277 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,319 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,488 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,307 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,095 |
| United States Country Quiz | 0 | - | 4.43 | 100,733 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,648 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,831 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,120 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,758 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,460 |
| Canada Country Quiz | 0 | - | 4.55 | 131,837 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,701 |
| Canada A-Z | 0 | - | 4.73 | 32,675 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,681 |
| Official European Union Languages | 0 | - | 4.97 | 237,156 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,021 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,617 |
| History of Austria | 0 | - | 4.70 | 17,769 |
| Geography of the French Empire | 0 | - | 4.45 | 26,956 |
| The French Revolution | 0 | - | 4.46 | 23,810 |
| History of France | 0 | - | 4.59 | 56,249 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,399 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,246 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,076 |
| The Vikings! | 0 | - | 4.46 | 28,259 |
| The Portuguese Empire | 0 | - | 4.54 | 12,004 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,219 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,913 |
| Geography of the British Empire | 0 | - | 4.48 | 39,522 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,959 |
| Asia Map Quiz | 0 | - | 4.99 | 908,121 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,693 |
| History of Iran | 0 | - | 4.65 | 16,283 |
| Egyptian Gods and Goddesses | 0 | - | 4.43 | 27,411 |
| History of China | 0 | - | 4.37 | 56,758 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,204 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,246 |
| Countries by Founding Story | 0 | - | 4.95 | 76,629 |
| Independence from Whom | 0 | - | 4.99 | 209,930 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,918 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,063 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,218 |
| Countries of Africa | 0 | - | 5.00 | 2,511,877 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,933 |
| African East Coast | 0 | - | 4.96 | 95,178 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,050 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,104 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,942 |
