| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,914 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,902 |
| States of Brazil | 0 | - | 4.97 | 88,019 |
| South America Map Quiz | 0 | - | 5.00 | 1,549,685 |
| States of Mexico | 0 | - | 4.96 | 176,068 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,039 |
| Word Chain - South America | 0 | - | 4.51 | 23,905 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,350 |
| Flags of North and South America | 0 | - | 4.99 | 373,052 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,755 |
| South American Physical Geography | 0 | - | 4.58 | 18,346 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,135 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,492 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,367 |
| The Only American Country ... | 0 | - | 4.92 | 121,595 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,114 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,357 |
| Famous People from South America | 0 | - | 4.15 | 21,972 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,281 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,956 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,113 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,477 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,450 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,464 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,024 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,931 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,782 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,576 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,020 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,170 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,456 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,749 |
| History of Mexico | 0 | - | 4.58 | 15,309 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,729 |
| South America A-Z | 0 | - | 4.13 | 10,905 |
| Central American Countries | 0 | - | 4.98 | 156,453 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,407 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,940 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,638 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,488 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,022 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,876 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,218 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,404 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,973 |
| Pixelated United States Map | 0 | - | 4.87 | 94,259 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,669 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,760 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,851 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,414 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,422 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,985 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,275 |
| U.S. States By Population | 0 | - | 4.92 | 153,536 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,436 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,435 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,509 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,207 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,610 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,954 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,700 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,173 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,496 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,215 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,381 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,338 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,503 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,200 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,803 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,596 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,293 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,262 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,817 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,444 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,756 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,468 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,532 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 279,143 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,944 |
| Belize Country Quiz | 0 | - | 4.85 | 20,972 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,693 |
| Famous Caribbean People | 0 | - | 4.37 | 12,618 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,035 |
| Territories of the United States | 0 | - | 4.80 | 52,392 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,665 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,453 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,187 |
| New York City Geography | 0 | - | 4.42 | 33,096 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,592 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,726 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,777 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,245 |
| Australian Capitals | 0 | - | 4.92 | 62,721 |
| South American Cities on the Map | 0 | - | 4.53 | 35,425 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,797 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,302 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,518 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,584 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,173 |
| United States Country Quiz | 0 | - | 4.43 | 101,502 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,877 |
| Canada Country Quiz | 0 | - | 4.54 | 132,477 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,201 |
| Canada A-Z | 0 | - | 4.73 | 32,833 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,122 |
| Official European Union Languages | 0 | - | 4.97 | 238,496 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,838 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,173 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,193 |
| Asia Map Quiz | 0 | - | 4.99 | 916,706 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,972 |
| Countries of Africa | 0 | - | 5.00 | 2,536,777 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,821 |
| African East Coast | 0 | - | 4.96 | 96,055 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,870 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,687 |
| Australia Map Quiz | 0 | - | 4.95 | 344,599 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,172 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,345 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,575 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,462 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,714 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,456 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,879 |
| New England States | 0 | - | 4.51 | 59,808 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,810 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,010 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,814 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,001 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,924 |
| U.S. States by Borders | 0 | - | 4.61 | 35,314 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,481 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,038 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,220 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,655 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 33,031 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,663 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,194 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,379 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,681 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,892 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,844 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,412 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,563 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,969 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,907 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,324 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,237 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,649 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,016 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,445 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,983 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,227 |
| The Only European Country ... | 0 | - | 4.91 | 216,601 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,114 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,832 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,963 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,883 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,766 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,968 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,209 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,963 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,571 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,225 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,255 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,499 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,032 |
| African Island Countries | 0 | - | 4.96 | 101,629 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,404 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,350 |
| Australian States and Territories | 0 | - | 4.96 | 141,958 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,279 |
| Australia True or False | 0 | - | 4.87 | 56,854 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,604 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,219 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,706 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,711 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,728 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,073 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,611 |
| North America Map Quiz | 0 | - | 4.98 | 248,479 |
| Top U.S. Universities | 0 | - | 4.15 | 145,124 |
| Largest United States Airlines | 0 | - | 4.39 | 55,026 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,730 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,916 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,557 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,139 |
| U.S. States by Governor | 0 | - | 4.43 | 18,063 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,695 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,362 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,678 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,843 |
| Events in U.S. History | 0 | - | 4.41 | 28,670 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,111 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,731 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,845 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,483 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,187 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,522 |
| Flyover States | 0 | - | 4.52 | 29,513 |
