| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,128 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,912 |
| States of Brazil | 0 | - | 4.98 | 86,344 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,967 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,287 |
| States of Mexico | 0 | - | 4.95 | 173,290 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,372 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,251 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,906 |
| South America A-Z | 0 | - | 4.13 | 10,836 |
| Flags of North and South America | 0 | - | 4.99 | 366,860 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,120 |
| South American Physical Geography | 0 | - | 4.58 | 18,269 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,310 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,721 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,742 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,795 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,828 |
| Famous Germans | 0 | - | 4.50 | 54,601 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,350 |
| The Only American Country ... | 0 | - | 4.92 | 120,725 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,314 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,124 |
| Famous People from South America | 0 | - | 4.15 | 21,784 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,715 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,927 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,912 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,937 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,846 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,040 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,471 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,312 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,982 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,346 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,214 |
| Canada A-Z | 0 | - | 4.73 | 32,642 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,058 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,611 |
| History of Mexico | 0 | - | 4.58 | 15,228 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,764 |
| Central American Countries | 0 | - | 4.98 | 155,004 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,826 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,088 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,811 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,626 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,120 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,809 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,507 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,605 |
| Famous Australians by Description | 0 | - | 4.23 | 27,560 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,066 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,082 |
| Pixelated United States Map | 0 | - | 4.89 | 93,445 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,430 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,823 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,693 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,330 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,374 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,619 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,871 |
| U.S. States By Population | 0 | - | 4.92 | 152,329 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,367 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,839 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,880 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,750 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,861 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,849 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,065 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,461 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,057 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,649 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,330 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,441 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,252 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,551 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,961 |
| Africa A-Z | 0 | - | 4.57 | 46,361 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,479 |
| Guyana Country Quiz | 0 | - | 4.49 | 22,580 |
| Venezuela Country Quiz | 0 | - | 4.50 | 30,384 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,074 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,023 |
| Suriname Country Quiz | 0 | - | 4.60 | 19,662 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,109 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,787 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,523 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,071 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,923 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,359 |
| Famous Russians | 0 | - | 4.16 | 23,724 |
| Famous French People | 0 | - | 4.12 | 27,926 |
| Famous Irish People | 0 | - | 4.05 | 45,854 |
| Famous Nordic People | 0 | - | 4.34 | 19,847 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,540 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,818 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 34,077 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,073 |
| Famous Chinese People | 0 | - | 4.09 | 11,798 |
| Mexican Foods | 0 | - | 4.07 | 14,608 |
| Belize Country Quiz | 0 | - | 4.85 | 20,798 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,582 |
| Famous Caribbean People | 0 | - | 4.37 | 12,565 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,921 |
| Territories of the United States | 0 | - | 4.79 | 52,130 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,365 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,517 |
| New York City Geography | 0 | - | 4.42 | 32,920 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,212 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,369 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 110,873 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,806 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,679 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,196 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,852 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,651 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,610 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,010 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,281 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,226 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,578 |
| Famous Scottish People | 0 | - | 4.22 | 18,326 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,821 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,383 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,152 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,556 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,063 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,701 |
| Middle East A-Z | 0 | - | 4.47 | 45,778 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,466 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,872 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,119 |
| Australian Capitals | 0 | - | 4.92 | 62,592 |
| South American Cities on the Map | 0 | - | 4.57 | 35,239 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,309 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,274 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,255 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,468 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,074 |
| United States Country Quiz | 0 | - | 4.43 | 100,557 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,592 |
| Canada Country Quiz | 0 | - | 4.54 | 131,689 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,589 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,568 |
| Official European Union Languages | 0 | - | 4.97 | 236,474 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,676 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,088 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,204 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,470 |
| Asia Map Quiz | 0 | - | 4.99 | 906,752 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,644 |
| A Quiz About Islam | 0 | - | 4.31 | 48,196 |
| Countries That Don't Recognize Israel | 0 | - | 4.63 | 34,426 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,760 |
| Countries of Africa | 0 | - | 5.00 | 2,506,869 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,787 |
| African East Coast | 0 | - | 4.96 | 95,014 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,899 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,773 |
| Australia Map Quiz | 0 | - | 4.94 | 342,420 |
| Pixelated Americas Map | 0 | - | 4.40 | 46,796 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,527 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,072 |
| South American Geography Quiz #2 | 0 | - | 4.62 | 39,187 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,467 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,057 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,630 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,806 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,580 |
| New England States | 0 | - | 4.51 | 59,704 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,469 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,881 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,302 |
| U.S. States by Borders | 0 | - | 4.63 | 35,063 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,229 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,125 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,982 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,298 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,771 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,409 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,869 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,203 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,403 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,955 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,311 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,147 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,846 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,560 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,115 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,191 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,061 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,187 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,915 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,249 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,186 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,465 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,876 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,251 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,467 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,141 |
