| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,145 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,951 |
| States of Brazil | 0 | - | 4.98 | 86,370 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,108 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,305 |
| States of Mexico | 0 | - | 4.95 | 173,315 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,378 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,493 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,906 |
| South America A-Z | 0 | - | 4.13 | 10,837 |
| Flags of North and South America | 0 | - | 4.99 | 367,074 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,210 |
| South American Physical Geography | 0 | - | 4.58 | 18,269 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,494 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,731 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,836 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,891 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,839 |
| Famous Germans | 0 | - | 4.50 | 54,606 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,428 |
| The Only American Country ... | 0 | - | 4.92 | 120,744 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,329 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,199 |
| Famous People from South America | 0 | - | 4.15 | 21,784 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,762 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,941 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,948 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,944 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,855 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,053 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,483 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,322 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,992 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,353 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,239 |
| Canada A-Z | 0 | - | 4.73 | 32,646 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,076 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,611 |
| History of Mexico | 0 | - | 4.58 | 15,230 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,777 |
| Central American Countries | 0 | - | 4.98 | 155,022 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,853 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,091 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,884 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,651 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,136 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,868 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,524 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,613 |
| Famous Australians by Description | 0 | - | 4.23 | 27,580 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,071 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,092 |
| Pixelated United States Map | 0 | - | 4.89 | 93,463 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,449 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,835 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,718 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,345 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,395 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,650 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,891 |
| U.S. States By Population | 0 | - | 4.92 | 152,348 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,389 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,852 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,890 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,760 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,871 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,864 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,075 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,475 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,063 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,655 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,343 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,446 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,299 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,553 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,962 |
| Africa A-Z | 0 | - | 4.57 | 46,367 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,505 |
| Guyana Country Quiz | 0 | - | 4.49 | 22,587 |
| Venezuela Country Quiz | 0 | - | 4.50 | 30,388 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,076 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,027 |
| Suriname Country Quiz | 0 | - | 4.60 | 19,666 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,109 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,789 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,555 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,084 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,924 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,359 |
| Famous Russians | 0 | - | 4.16 | 23,727 |
| Famous French People | 0 | - | 4.12 | 27,937 |
| Famous Irish People | 0 | - | 4.05 | 45,854 |
| Famous Nordic People | 0 | - | 4.34 | 19,851 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,543 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,828 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 34,158 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,088 |
| Famous Chinese People | 0 | - | 4.09 | 11,799 |
| Mexican Foods | 0 | - | 4.07 | 14,609 |
| Belize Country Quiz | 0 | - | 4.85 | 20,802 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,584 |
| Famous Caribbean People | 0 | - | 4.37 | 12,565 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,925 |
| Territories of the United States | 0 | - | 4.79 | 52,140 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,372 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,533 |
| New York City Geography | 0 | - | 4.42 | 32,926 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,216 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,386 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 110,889 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,825 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,694 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,208 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,870 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,661 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,619 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,013 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,295 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,831 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,587 |
| Famous Scottish People | 0 | - | 4.22 | 18,326 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,825 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,391 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,158 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,559 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,068 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,707 |
| Middle East A-Z | 0 | - | 4.47 | 45,786 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,663 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,128 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,217 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| South American Cities on the Map | 0 | - | 4.57 | 35,241 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,322 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,275 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,260 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,473 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,075 |
| United States Country Quiz | 0 | - | 4.43 | 100,571 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,598 |
| Canada Country Quiz | 0 | - | 4.54 | 131,697 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,602 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,573 |
| Official European Union Languages | 0 | - | 4.97 | 236,502 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,693 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,166 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,211 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,110 |
| Asia Map Quiz | 0 | - | 4.99 | 906,909 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,650 |
| A Quiz About Islam | 0 | - | 4.31 | 48,202 |
| Countries That Don't Recognize Israel | 0 | - | 4.63 | 34,434 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,785 |
| Countries of Africa | 0 | - | 5.00 | 2,507,421 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,802 |
| African East Coast | 0 | - | 4.96 | 95,035 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,912 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,783 |
| Australia Map Quiz | 0 | - | 4.94 | 342,449 |
| Pixelated Americas Map | 0 | - | 4.40 | 46,805 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,530 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,073 |
| South American Geography Quiz #2 | 0 | - | 4.62 | 39,190 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,469 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,124 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,631 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,840 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,585 |
| New England States | 0 | - | 4.51 | 59,707 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,471 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,882 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,308 |
| U.S. States by Borders | 0 | - | 4.63 | 35,067 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,234 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,133 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,986 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,303 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,777 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,411 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,871 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,206 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,408 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,966 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,325 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,150 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,864 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,569 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,116 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,192 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,112 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,198 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,952 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,285 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,204 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,532 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,888 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,265 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,478 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,155 |
