| Pixelated United States Map | 0 | - | 4.90 | 82,073 |
| US States Quiz | 0 | - | 5.00 | 14,716,213 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.84 | 54,610 |
| Total United States Immigration by Country | 0 | - | 4.89 | 96,562 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 146,664 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 184,401 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,540 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 339,836 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 93,083 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 78,471 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 157,927 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 100,433 |
| U.S. States with the Letter Y | 0 | - | 4.87 | 96,014 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 99,070 |
| U.S. States with Short Names | 0 | - | 4.87 | 129,500 |
| U.S. States that Start with M | 0 | - | 4.91 | 150,274 |
| U.S. States By Population | 0 | - | 4.90 | 129,885 |
| U.S. States that Start with N | 0 | - | 4.95 | 155,342 |
| U.S. States with Longest Names | 0 | - | 4.84 | 35,979 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 58,270 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 55,962 |
| US States with an Empty Map | 0 | - | 5.00 | 553,280 |
| Flags of Africa Quiz | 0 | - | 4.99 | 385,685 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 34,984 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 273,404 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 124,291 |
| Countries that Beat the United States | 0 | - | 4.92 | 145,456 |
| Louisiana Purchase with a Map | 0 | - | 4.95 | 36,042 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 40,587 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.89 | 89,330 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 73,106 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 71,078 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 115,955 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 20,983 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 184,428 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,806 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 100,561 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 71,166 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 57,066 |
| Pixelated Africa Map | 0 | - | 4.98 | 88,188 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 309,329 |
| States of Mexico | 0 | - | 4.95 | 140,878 |
| Mexico States Map Quiz | 0 | - | 4.84 | 90,437 |
| Africa Map Quiz | 0 | - | 5.00 | 1,937,461 |
| U.S. State Nicknames Quiz | 0 | - | 4.49 | 46,100 |
| U.S. National Parks Quiz | 0 | - | 4.79 | 46,663 |
| Countries with American Expatriates | 0 | - | 4.58 | 40,895 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 38,296 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 31,686 |
| Cities by Picture #2 | 0 | - | 4.22 | 32,335 |
| United States Country Quiz | 0 | - | 4.45 | 88,963 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 72,404 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.77 | 56,927 |
| Countries Closest to Canada | 0 | - | 4.90 | 184,291 |
| Asian Last Names in the United States | 0 | - | 4.41 | 43,229 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 700,298 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 198,534 |
| U.S. Federal Agency Acronyms | 0 | - | 4.51 | 75,869 |
| 10 Closest Megacities to New York City | 0 | - | 4.54 | 54,495 |
| New England States | 0 | - | 4.54 | 52,426 |
| US States by Land Area | 0 | - | 4.59 | 48,429 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.52 | 36,146 |
| Add a Letter - Make a U.S. State | 0 | - | 4.74 | 76,432 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 51,001 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.79 | 37,234 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 52,950 |
| The Only U.S. State ... #1 | 0 | - | 4.55 | 82,526 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.47 | 40,474 |
| Countries of Africa | 0 | - | 5.00 | 2,163,841 |
| Western Africa Map Quiz | 0 | - | 4.97 | 60,837 |
| Random African Flag to Country | 0 | - | 4.89 | 64,384 |
| United States Map Quiz | 0 | - | 4.98 | 3,899,427 |
| U.S. States by Picture #1 | 0 | - | 4.15 | 14,341 |
| Washington State by Picture | 0 | - | 4.16 | 7,130 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 49,157 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.70 | 59,817 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.75 | 53,986 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 52,888 |
| Longest U.S. State Borders | 0 | - | 4.65 | 34,167 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 58,272 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,746 |
| U.S. States with the Fewest Borders | 0 | - | 4.76 | 105,619 |
| U.S. States with the Most Borders | 0 | - | 4.56 | 61,047 |
| African-American Historical Figures | 0 | - | 4.14 | 16,390 |
| Flags of Asia Quiz | 0 | - | 4.99 | 523,633 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 91,625 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 197,489 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 104,581 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 130,722 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 119,198 |
| African Island Countries | 0 | - | 4.96 | 89,213 |
| Canada or Africa by Area | 0 | - | 4.79 | 13,514 |
| Belize Country Quiz | 0 | - | 4.88 | 18,722 |
| Top U.S. Universities | 0 | - | 4.12 | 112,903 |
| Largest United States Airlines | 0 | - | 4.38 | 52,001 |
| Third Most Common Language by U.S. State | 0 | - | 4.91 | 106,896 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 16,938 |
| U.S. Political Parties in History | 0 | - | 4.42 | 26,148 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.11 | 25,076 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.08 | 14,762 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.17 | 10,103 |
| U.S. Government Agencies | 0 | - | 4.41 | 17,641 |
| Florida Pro Sport Teams | 0 | - | 4.66 | 10,259 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,042,838 |
| Georgia ... or Georgia? | 0 | - | 4.79 | 71,847 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 19,404 |
| American Legal Vocabulary | 0 | - | 4.40 | 32,124 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.52 | 33,965 |
| Biggest Trading Partners - US | 0 | - | 4.63 | 101,481 |
| The U.S. Government - How Does it Work? | 0 | - | 4.33 | 39,830 |
| Famous People from California by Picture | 0 | - | 4.31 | 31,690 |
| California Groups of Things | 0 | - | 4.23 | 42,781 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.40 | 55,618 |
| New York Groups of Things | 0 | - | 4.39 | 57,243 |
| People on Money - United States | 0 | - | 4.31 | 61,755 |
| U.S. History Groups of Two | 0 | - | 4.27 | 35,293 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 41,242 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.34 | 70,701 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.49 | 20,482 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.44 | 47,682 |
| Flyover States | 0 | - | 4.51 | 27,971 |
| U.S. States With Double Letters | 0 | - | 4.66 | 4,263 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.29 | 57,717 |
| U.S. States by Borders | 0 | - | 4.58 | 26,275 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 37,407 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 35,327 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 69,075 |
| U.S. State Superlatives #1 | 0 | - | 4.46 | 75,480 |
| U.S. State Superlatives #2 | 0 | - | 4.51 | 37,277 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.38 | 120,864 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 60,543 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 103,300 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.49 | 35,018 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.79 | 58,430 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.45 | 39,359 |
| Pixelated Asia Map | 0 | - | 4.89 | 63,100 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.94 | 25,106 |
| African Diaspora - Top 10 Countries | 0 | - | 4.91 | 65,856 |
| The Only African Country ... | 0 | - | 4.98 | 105,113 |
| African Countries by a Single Clue | 0 | - | 4.91 | 63,438 |
| Countries Closest to Africa | 0 | - | 4.95 | 145,112 |
| Flags of Oceania | 0 | - | 5.00 | 214,839 |
| The Only American Country ... | 0 | - | 4.94 | 109,577 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 100,729 |
| U.S. State Border Crossings | 0 | - | 4.96 | 82,038 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 221,977 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.83 | 33,142 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.87 | 65,181 |
| Cities and Towns of Massachusetts | 0 | - | 4.89 | 60,233 |
| Who Did that Motown Song | 0 | - | 4.45 | 12,658 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 19,756 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 27,467 |
| Which U.S. State - Multiple Choice | 0 | - | 4.45 | 18,960 |
| Movies by State Quiz | 0 | - | 4.23 | 39,356 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.60 | 31,063 |
| Canada Country Quiz | 0 | - | 4.54 | 121,255 |
| Canada Cities Map Quiz | 0 | - | 4.65 | 109,343 |
| Three Band Flags of Europe | 0 | - | 4.97 | 160,780 |
| Pixelated Europe Map | 0 | - | 4.90 | 109,310 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 109,479 |
| Name a Valid African Country | 0 | - | 4.98 | 123,673 |
| Morocco Country Quiz | 0 | - | 4.81 | 40,970 |
| D.R. Congo Country Quiz | 0 | - | 4.84 | 35,287 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 81,292 |
| Mexico Country Quiz | 0 | - | 4.48 | 66,352 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.90 | 39,766 |
| Brazil States Map Quiz | 0 | - | 4.83 | 39,448 |
| States of Brazil | 0 | - | 4.96 | 68,413 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 18,394 |
| U.S. States by Picture #2 | 0 | - | 3.44 | 10,923 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 72,386 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 62,630 |
| Senators Who Ran For President | 0 | - | 4.28 | 16,296 |
| U.S. Electoral College Landslides | 0 | - | 4.33 | 20,995 |
| Geography of California | 0 | - | 4.23 | 9,663 |
| California Pro Sport Teams | 0 | - | 4.23 | 22,068 |
| Chicago City Trivia | 0 | - | 4.26 | 30,395 |
| New York Pro Sport Teams | 0 | - | 4.29 | 14,974 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.83 | 21,532 |
| Texas Pro Sport Teams | 0 | - | 4.11 | 16,191 |
| History of Pennsylvania | 0 | - | 4.09 | 6,433 |
| History of Virginia | 0 | - | 4.33 | 10,935 |
| Events in U.S. History | 0 | - | 4.39 | 26,087 |
| Events by U.S. State #1 | 0 | - | 4.41 | 21,757 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 31,454 |
| Most Valuable Crops by U.S. State | 0 | - | 4.38 | 36,736 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.30 | 34,668 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 31,166 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.51 | 27,554 |
| U.S. States with the Most Venomous Snake Species | 0 | - | 4.47 | 25,002 |
| U.S. States with the Most Endangered Species | 0 | - | 4.50 | 13,858 |
| Canadian Prime Ministers Quiz | 0 | - | 4.64 | 49,483 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 73,560 |
| Most-Visited Countries by Canadians | 0 | - | 4.79 | 37,886 |
| Flags of the Mediterranean | 0 | - | 4.93 | 123,894 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 90,148 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 67,699 |
| Kenya Country Quiz | 0 | - | 4.87 | 31,016 |
| Djibouti Country Quiz | 0 | - | 4.87 | 19,266 |
| Countries Closest to Ethiopia | 0 | - | 4.89 | 63,502 |
