| States of Mexico | 0 | - | 4.95 | 173,121 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,700 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,543 |
| Central American Countries | 0 | - | 4.98 | 154,938 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,649 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,103 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,506 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,706 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,433 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,486 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 127,979 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,881 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,816 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,879 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,208 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,785 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,990 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,444 |
| Belize Country Quiz | 0 | - | 4.85 | 20,784 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,034 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,110 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,066 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,817 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,349 |
| States of Brazil | 0 | - | 4.98 | 86,245 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,650 |
| Name the U.S. National Parks | 0 | - | 4.85 | 58,343 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,560 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,056 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,074 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,491 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,558 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,282 |
| Pixelated United States Map | 0 | - | 4.89 | 93,377 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,333 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,752 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,616 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,258 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,309 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,528 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,800 |
| U.S. States By Population | 0 | - | 4.92 | 152,288 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,293 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,794 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,850 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,467 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,723 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,797 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,794 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,043 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,415 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,037 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,623 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,767 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,269 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,417 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,005 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 81,887 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,803 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,773 |
| Mexican Foods | 0 | - | 4.07 | 14,604 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,835 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,326 |
| Flags of North and South America | 0 | - | 4.99 | 366,002 |
| Territories of the United States | 0 | - | 4.79 | 52,109 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,357 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,459 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,694 |
| New York City Geography | 0 | - | 4.42 | 32,890 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,981 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,178 |
| The Only American Country ... | 0 | - | 4.92 | 120,678 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,277 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,599 |
| Old West History | 0 | - | 4.32 | 15,218 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,486 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,841 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,635 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,810 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,316 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,272 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,010 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| El Salvador Country Quiz | 0 | - | 4.62 | 31,447 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,187 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,659 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,342 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.66 | 21,891 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,634 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,237 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,461 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,068 |
| United States Country Quiz | 0 | - | 4.43 | 100,492 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,581 |
| Canada Country Quiz | 0 | - | 4.54 | 131,648 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,566 |
| Canada A-Z | 0 | - | 4.73 | 32,631 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,104 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,491 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,612 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,738 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,020 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,846 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,903 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,579 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,917 |
| Grenada Country Quiz | 0 | - | 4.62 | 18,763 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,599 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,000 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,074 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,627 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,138 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,718 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,621 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,671 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,567 |
| History of Pennsylvania | 0 | - | 4.16 | 7,084 |
| History of Virginia | 0 | - | 4.31 | 11,553 |
| Events in U.S. History | 0 | - | 4.40 | 28,454 |
| New England States | 0 | - | 4.51 | 59,699 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,437 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,876 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,272 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,600 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,642 |
| U.S. States by Borders | 0 | - | 4.63 | 35,050 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,319 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,215 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,096 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,969 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,278 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,758 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,398 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,842 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,191 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,386 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,905 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,272 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,127 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,801 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,528 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,320 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,107 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,181 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,145 |
| Name the English Monarchs | 0 | - | 4.92 | 497,505 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,034 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,047 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,054 |
| South American Physical Geography | 0 | - | 4.58 | 18,263 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,280 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,273 |
| Top U.S. Universities | 0 | - | 4.15 | 143,953 |
| Largest United States Airlines | 0 | - | 4.39 | 54,820 |
| U.S. States by Governor | 0 | - | 4.43 | 17,976 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,563 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,533 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,649,846 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,744 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,153 |
| The Life of Thomas Edison | 0 | - | 4.03 | 4,891 |
| 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 | 22,435 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,481 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,260 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,014 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,946 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,756 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,008 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,382 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,656 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,510 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,069 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,094 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,347 |
| Name that Greek Letter | 0 | - | 4.94 | 321,469 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,222 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,374 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,376 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,900 |
| Guyana Country Quiz | 0 | - | 4.49 | 22,562 |
| Countries Bordering Brazil | 0 | - | 4.96 | 130,966 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,260 |
| Venezuela Country Quiz | 0 | - | 4.50 | 30,365 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,057 |
| Bolivia Country Quiz | 0 | - | 4.63 | 25,991 |
| Suriname Country Quiz | 0 | - | 4.60 | 19,651 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,029 |
| Which Island in the United States? | 0 | - | 4.29 | 29,132 |
| American Inventions #1 | 0 | - | 3.63 | 31,456 |
| American Inventions #2 | 0 | - | 3.93 | 15,821 |
| American Foods | 0 | - | 3.66 | 39,269 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,750 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,108 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,779 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,330 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,919 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,658 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,175 |
