| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,438 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,741 |
| States of Brazil | 0 | - | 4.97 | 89,607 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,091 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,770 |
| States of Mexico | 0 | - | 4.96 | 178,072 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,547 |
| Word Chain - South America | 0 | - | 4.51 | 24,001 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,494 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,962 |
| South America A-Z | 0 | - | 4.15 | 10,943 |
| Flags of North and South America | 0 | - | 4.99 | 376,619 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,574 |
| South American Physical Geography | 0 | - | 4.58 | 18,399 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,742 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,030,641 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,503 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,889 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,336 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,982 |
| Famous Germans | 0 | - | 4.50 | 55,766 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,323 |
| The Only American Country ... | 0 | - | 4.92 | 122,175 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,614 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,724 |
| Famous People from South America | 0 | - | 4.15 | 22,091 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 904,820 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,781 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,943 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,857 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,913 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,944 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,235 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,671 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,932 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,795 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,516 |
| Canada A-Z | 0 | - | 4.73 | 32,958 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,793 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,776 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,850 |
| History of Mexico | 0 | - | 4.52 | 15,360 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,564 |
| Central American Countries | 0 | - | 4.98 | 157,256 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,541 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,288 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,620 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,432 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,334 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,470 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,279 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,082 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,688 |
| Famous French People | 0 | - | 4.07 | 36,075 |
| Famous Australians by Description | 0 | - | 4.23 | 28,135 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,592 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 94,755 |
| Pixelated United States Map | 0 | - | 4.88 | 94,769 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,474 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,390 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,006 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,212 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,231 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,282 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,300 |
| U.S. States By Population | 0 | - | 4.92 | 154,092 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,165 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,854 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,028 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,518 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,059 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,671 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,171 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,646 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,799 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,624 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,599 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,073 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,738 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,292 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,667 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,139 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,919 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,729 |
| Paraguay Country Quiz | 0 | - | 4.54 | 25,405 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,391 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,931 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,152 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,011 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,582 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,410 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,998 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,426 |
| Famous Russians | 0 | - | 4.16 | 23,906 |
| Famous Irish People | 0 | - | 4.05 | 46,062 |
| Famous Nordic People | 0 | - | 4.34 | 20,290 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,644 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,038 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,962 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,563 |
| Famous Chinese People | 0 | - | 4.09 | 11,923 |
| Africa A-Z | 0 | - | 4.57 | 46,760 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,265 |
| Belize Country Quiz | 0 | - | 4.85 | 21,077 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,777 |
| Famous Caribbean People | 0 | - | 4.37 | 12,656 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,137 |
| Territories of the United States | 0 | - | 4.80 | 52,605 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,873 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,050 |
| New York City Geography | 0 | - | 4.43 | 33,182 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,856 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,931 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,215 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,519 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,873 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,821 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,227 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,931 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,440 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,663 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,381 |
| Europe Map Quiz | 0 | - | 5.00 | 4,785,849 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,270 |
| Famous Scottish People | 0 | - | 4.22 | 18,438 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,409 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 66,022 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,621 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,158 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,618 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,278 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,251 |
| Middle East A-Z | 0 | - | 4.47 | 46,232 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,324,877 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,868 |
| Australian Capitals | 0 | - | 4.92 | 62,826 |
| South American Cities on the Map | 0 | - | 4.52 | 35,544 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,311 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,721 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,670 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,270 |
| United States Country Quiz | 0 | - | 4.43 | 102,147 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,050 |
| Canada Country Quiz | 0 | - | 4.55 | 133,009 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,580 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,678 |
| Official European Union Languages | 0 | - | 4.97 | 239,685 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,580 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,663 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,340 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,117 |
| Asia Map Quiz | 0 | - | 4.99 | 924,531 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,189 |
| A Quiz About Islam | 0 | - | 4.32 | 48,604 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 35,152 |
| Africa Map Quiz | 0 | - | 5.00 | 2,127,862 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,439 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,408 |
| Australia Map Quiz | 0 | - | 4.95 | 346,056 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,407 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,878 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,298 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,926 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,876 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,500 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,769 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,435 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,102 |
| New England States | 0 | - | 4.51 | 59,891 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,035 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,113 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,122 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,269 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,129 |
| U.S. States by Borders | 0 | - | 4.62 | 35,464 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,673 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,322 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,436 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,909 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,210 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,821 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,448 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,502 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,850 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,337 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,247 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,577 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,022 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,249 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,426 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,808 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,886 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,633 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,094 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,885 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,201 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,982 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,703 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,377 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,003 |
