| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,655 |
| States of Mexico | 0 | - | 4.95 | 173,217 |
| Central American Countries | 0 | - | 4.98 | 154,971 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,093 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,773 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,106 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,614 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,702 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,301 |
| Belize Country Quiz | 0 | - | 4.85 | 20,791 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,909 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,868 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,916 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,261 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,822 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,017 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,465 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,171 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,736 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,104 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,892 |
| States of Brazil | 0 | - | 4.98 | 86,301 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,773 |
| Famous Caribbean People | 0 | - | 4.37 | 12,564 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,645 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,603 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,528 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,505 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,579 |
| Pixelated United States Map | 0 | - | 4.89 | 93,423 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,388 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,800 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,663 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,301 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,350 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,574 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,842 |
| U.S. States By Population | 0 | - | 4.92 | 152,305 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,330 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,824 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,867 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,498 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,735 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,836 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,827 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,052 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,447 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,048 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,640 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,793 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,299 |
| Famous People from South America | 0 | - | 4.15 | 21,778 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,480 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,037 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,906 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,820 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,800 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,609 |
| Mexican Foods | 0 | - | 4.07 | 14,606 |
| History of Mexico | 0 | - | 4.58 | 15,227 |
| Word Chain - South America | 0 | - | 4.51 | 23,758 |
| African-American Historical Figures | 0 | - | 4.18 | 17,120 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,515 |
| Flags of North and South America | 0 | - | 4.99 | 366,545 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,096 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,780 |
| Famous People from Africa | 0 | - | 4.45 | 10,855 |
| Territories of the United States | 0 | - | 4.79 | 52,120 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,363 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,489 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,710 |
| New York City Geography | 0 | - | 4.42 | 32,901 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,202 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,230 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,988 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,250 |
| The Only American Country ... | 0 | - | 4.92 | 120,710 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,341 |
| El Salvador Country Quiz | 0 | - | 4.62 | 31,462 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,194 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,672 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,347 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,298 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,735 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,250 |
| American Foods | 0 | - | 3.66 | 39,271 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,465 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,072 |
| United States Country Quiz | 0 | - | 4.43 | 100,533 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,178 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,796 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,588 |
| Canada Country Quiz | 0 | - | 4.54 | 131,672 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,577 |
| Canada A-Z | 0 | - | 4.73 | 32,638 |
| Canada Decoder | 0 | - | 4.12 | 18,644 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,713 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,632 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,039 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,039 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,869 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,904 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,184 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,461 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,360 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,581 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,919 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,082 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,156 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,628 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,229 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,775 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,661 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,575 |
| New England States | 0 | - | 4.51 | 59,702 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,457 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,880 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,292 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,611 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,650 |
| U.S. States by Borders | 0 | - | 4.63 | 35,057 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,220 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,111 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,975 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,289 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,767 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,407 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,856 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,197 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,396 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,935 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,295 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,136 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,832 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,545 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,351 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,111 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,187 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,383 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,082 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,053 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,646 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,507 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,048 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,059 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,064 |
| South American Physical Geography | 0 | - | 4.58 | 18,265 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,274 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,850 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,331 |
| Top U.S. Universities | 0 | - | 4.15 | 144,007 |
| Largest United States Airlines | 0 | - | 4.39 | 54,825 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,827 |
| U.S. States by Governor | 0 | - | 4.43 | 17,978 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,567 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,542 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,750 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,984 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,266 |
| 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 | 44,953 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,760 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,333 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,225 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,013 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,385 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,661 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,482 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,862 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,526 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,075 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,961 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,111 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 273,053 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,397 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,032 |
| Which Island in the United States? | 0 | - | 4.29 | 29,142 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,109 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,784 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,341 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,927 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,664 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,149 |
| Old West History | 0 | - | 4.33 | 15,220 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,488 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,844 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,641 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,587 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,458 |
| Flyover States | 0 | - | 4.52 | 29,381 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,902 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,779 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 127,976 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,586 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,573 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,349 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,147 |
| US States with the Most Executions | 0 | - | 4.51 | 26,347 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,911 |
