| States of Mexico | 0 | - | 4.95 | 173,169 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,707 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,586 |
| Central American Countries | 0 | - | 4.98 | 154,946 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,694 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,315 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,628 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,842 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,505 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,565 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,009 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,894 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,845 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,892 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,228 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,801 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,997 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,454 |
| Belize Country Quiz | 0 | - | 4.85 | 20,787 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,036 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,141 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,085 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,833 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,353 |
| States of Brazil | 0 | - | 4.98 | 86,274 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,653 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,460 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,578 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,075 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,222 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,496 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,565 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,290 |
| Pixelated United States Map | 0 | - | 4.89 | 93,399 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,351 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,772 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,628 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,276 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,325 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,552 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,818 |
| U.S. States By Population | 0 | - | 4.92 | 152,292 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,308 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,801 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,855 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,478 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,728 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,816 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,806 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,045 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,422 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,041 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,629 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,775 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,279 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,441 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,014 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,890 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,808 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,787 |
| Mexican Foods | 0 | - | 4.07 | 14,606 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,841 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,328 |
| Flags of North and South America | 0 | - | 4.99 | 366,225 |
| Territories of the United States | 0 | - | 4.79 | 52,111 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,359 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,462 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,703 |
| New York City Geography | 0 | - | 4.42 | 32,893 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,982 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,190 |
| The Only American Country ... | 0 | - | 4.92 | 120,690 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,285 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,641 |
| Old West History | 0 | - | 4.33 | 15,219 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,487 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,842 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,636 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,831 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,334 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,290 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,025 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| El Salvador Country Quiz | 0 | - | 4.62 | 31,453 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,192 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,663 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,343 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.66 | 21,892 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,635 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,243 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,463 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,070 |
| United States Country Quiz | 0 | - | 4.43 | 100,507 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,586 |
| Canada Country Quiz | 0 | - | 4.54 | 131,656 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,572 |
| Canada A-Z | 0 | - | 4.73 | 32,634 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,111 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,496 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,617 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,756 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,027 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,850 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,903 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,580 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,919 |
| Grenada Country Quiz | 0 | - | 4.62 | 18,764 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,601 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,003 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,074 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,628 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,171 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,738 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,633 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,676 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,571 |
| History of Pennsylvania | 0 | - | 4.16 | 7,085 |
| History of Virginia | 0 | - | 4.31 | 11,554 |
| Events in U.S. History | 0 | - | 4.40 | 28,458 |
| New England States | 0 | - | 4.51 | 59,701 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,447 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,878 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,285 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,601 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,645 |
| U.S. States by Borders | 0 | - | 4.63 | 35,052 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,338 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,217 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,102 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,972 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,285 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,764 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,402 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,847 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,192 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,389 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,913 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,281 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,131 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,807 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,534 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,328 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,109 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,184 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,162 |
| Name the English Monarchs | 0 | - | 4.92 | 497,569 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,040 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,050 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,055 |
| South American Physical Geography | 0 | - | 4.58 | 18,264 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,283 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,273 |
| Top U.S. Universities | 0 | - | 4.15 | 143,972 |
| Largest United States Airlines | 0 | - | 4.39 | 54,821 |
| U.S. States by Governor | 0 | - | 4.43 | 17,977 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,563 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,537 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,650,397 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,746 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,164 |
| The Life of Thomas Edison | 0 | - | 4.03 | 4,892 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 24,984 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,149 |
| Valid Answer - U.S. History | 0 | - | 4.24 | 22,439 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,483 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,263 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,017 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,947 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,757 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,011 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,382 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,657 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,520 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,071 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,134 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,438 |
| Name that Greek Letter | 0 | - | 4.94 | 321,487 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,304 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,381 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,389 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,904 |
| Guyana Country Quiz | 0 | - | 4.49 | 22,566 |
| Countries Bordering Brazil | 0 | - | 4.96 | 130,991 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,261 |
| Venezuela Country Quiz | 0 | - | 4.50 | 30,370 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,064 |
| Bolivia Country Quiz | 0 | - | 4.63 | 25,996 |
| Suriname Country Quiz | 0 | - | 4.60 | 19,653 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,030 |
| Which Island in the United States? | 0 | - | 4.29 | 29,137 |
| American Inventions #1 | 0 | - | 3.63 | 31,458 |
| American Inventions #2 | 0 | - | 3.93 | 15,825 |
| American Foods | 0 | - | 3.66 | 39,271 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,767 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,109 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,783 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,332 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,922 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,660 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,177 |
