| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,869 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,839 |
| States of Brazil | 0 | - | 4.97 | 87,888 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,920 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,353 |
| States of Mexico | 0 | - | 4.95 | 175,835 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,008 |
| Word Chain - South America | 0 | - | 4.51 | 23,892 |
| United States Map Quiz | 0 | - | 4.98 | 4,156,640 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,942 |
| South America A-Z | 0 | - | 4.13 | 10,899 |
| Flags of North and South America | 0 | - | 4.99 | 372,705 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,665 |
| South American Physical Geography | 0 | - | 4.58 | 18,335 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,022,246 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,161 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,137 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,877 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,336 |
| Famous Germans | 0 | - | 4.50 | 55,262 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,430 |
| The Only American Country ... | 0 | - | 4.92 | 121,535 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,053 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,046 |
| Famous People from South America | 0 | - | 4.15 | 21,948 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,928 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,864 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,028 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,441 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,417 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,922 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,890 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,449 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,781 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,553 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,870 |
| Canada A-Z | 0 | - | 4.73 | 32,807 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,107 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,741 |
| History of Mexico | 0 | - | 4.58 | 15,304 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,654 |
| Central American Countries | 0 | - | 4.98 | 156,369 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,248 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,450 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,892 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,538 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,373 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,734 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,842 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,178 |
| Famous French People | 0 | - | 4.06 | 35,455 |
| Famous Australians by Description | 0 | - | 4.23 | 27,916 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,374 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,830 |
| Pixelated United States Map | 0 | - | 4.87 | 94,199 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,556 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,683 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,781 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,318 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,342 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,883 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,161 |
| U.S. States By Population | 0 | - | 4.92 | 153,486 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,351 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,397 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,460 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,178 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,566 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,889 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,655 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,144 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,472 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,173 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,343 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,246 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,588 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,264 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,621 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,057 |
| Africa A-Z | 0 | - | 4.57 | 46,595 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,069 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,791 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,588 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,275 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,254 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,810 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,128 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,906 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,054 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,694 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,432 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,409 |
| Famous Russians | 0 | - | 4.16 | 23,834 |
| Famous Irish People | 0 | - | 4.05 | 45,990 |
| Famous Nordic People | 0 | - | 4.34 | 20,092 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,613 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,490 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,518 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,937 |
| Famous Chinese People | 0 | - | 4.09 | 11,873 |
| Belize Country Quiz | 0 | - | 4.85 | 20,960 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,686 |
| Famous Caribbean People | 0 | - | 4.37 | 12,610 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,025 |
| Territories of the United States | 0 | - | 4.79 | 52,368 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,645 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,391 |
| New York City Geography | 0 | - | 4.42 | 33,081 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,571 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,861 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 114,835 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,595 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,299 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,309 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,385 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,379 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,690 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,580 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,904 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,291 |
| Europe Map Quiz | 0 | - | 5.00 | 4,760,134 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,479 |
| Famous Scottish People | 0 | - | 4.22 | 18,392 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,104 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,666 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,391 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,870 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,333 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,997 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,831 |
| Middle East A-Z | 0 | - | 4.47 | 46,003 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,315,673 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,849 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,671 |
| Australian Capitals | 0 | - | 4.92 | 62,715 |
| South American Cities on the Map | 0 | - | 4.53 | 35,408 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,773 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,301 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,489 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,576 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,166 |
| United States Country Quiz | 0 | - | 4.43 | 101,447 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,860 |
| Canada Country Quiz | 0 | - | 4.54 | 132,433 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,147 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,082 |
| Official European Union Languages | 0 | - | 4.97 | 238,375 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,767 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,963 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,753 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,736 |
| Asia Map Quiz | 0 | - | 4.99 | 915,955 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,950 |
| A Quiz About Islam | 0 | - | 4.31 | 48,421 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 34,822 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,081 |
| Countries of Africa | 0 | - | 5.00 | 2,534,438 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,756 |
| African East Coast | 0 | - | 4.96 | 95,976 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,799 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,622 |
| Australia Map Quiz | 0 | - | 4.95 | 344,239 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,140 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,378 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,840 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,333 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,572 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 746,792 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,705 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,145 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,868 |
| New England States | 0 | - | 4.51 | 59,801 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,785 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,002 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,774 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,977 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,906 |
| U.S. States by Borders | 0 | - | 4.61 | 35,293 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,465 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,013 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,203 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,629 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 33,019 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,642 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,163 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,364 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,657 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,839 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,796 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,392 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,495 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,949 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,319 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,079 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,632 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,859 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,285 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,418 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,734 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,883 |
