| States of Brazil | 0 | - | 4.97 | 89,187 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,313 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,516 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,433 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,024 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,588 |
| States of Mexico | 0 | - | 4.96 | 177,615 |
| South America A-Z | 0 | - | 4.15 | 10,936 |
| Word Chain - South America | 0 | - | 4.51 | 23,968 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,594 |
| Flags of North and South America | 0 | - | 4.99 | 375,825 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,387 |
| South American Physical Geography | 0 | - | 4.58 | 18,386 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,707 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,827 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,105 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,106 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,881 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,904 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,160 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,403 |
| The Only American Country ... | 0 | - | 4.92 | 122,042 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,496 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,788 |
| Famous People from South America | 0 | - | 4.15 | 22,049 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,597 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,681 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,763 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,798 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,764 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,169 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,232 |
| Canada A-Z | 0 | - | 4.73 | 32,929 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,551 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,245 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,876 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,610 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,687 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,832 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,958 |
| History of Mexico | 0 | - | 4.52 | 15,354 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,439 |
| Central American Countries | 0 | - | 4.98 | 157,108 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,143 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,796 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,580 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,331 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,148 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,273 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,757 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,045 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,592 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,542 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,883 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,123 |
| Pixelated United States Map | 0 | - | 4.88 | 94,649 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,259 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,236 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,313 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,785 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 112,002 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,018 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,662 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,021 |
| U.S. States By Population | 0 | - | 4.92 | 153,960 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,986 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,756 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,941 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,707 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,441 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,953 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,505 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,070 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,564 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,756 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,553 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,276 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,913 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,528 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,872 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,700 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,922 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,895 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,708 |
| Paraguay Country Quiz | 0 | - | 4.54 | 25,374 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,355 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,909 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,142 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,990 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,684 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,846 |
| Africa A-Z | 0 | - | 4.57 | 46,737 |
| Belize Country Quiz | 0 | - | 4.85 | 21,058 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,749 |
| Famous Caribbean People | 0 | - | 4.37 | 12,649 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,119 |
| Territories of the United States | 0 | - | 4.80 | 52,553 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,821 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,939 |
| New York City Geography | 0 | - | 4.43 | 33,164 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,807 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,648 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,025 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,716 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,030 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,702 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,031 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,845 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,357 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,574 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,258 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,356 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,193 |
| Famous Germans | 0 | - | 4.50 | 55,661 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,056 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,362 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,955 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,578 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,101 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,565 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,283 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,229 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,182 |
| Middle East A-Z | 0 | - | 4.47 | 46,203 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,022 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,322,998 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,820 |
| Australian Capitals | 0 | - | 4.92 | 62,804 |
| South American Cities on the Map | 0 | - | 4.52 | 35,521 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,306 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,667 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,643 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,260 |
| United States Country Quiz | 0 | - | 4.43 | 101,995 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,021 |
| Canada Country Quiz | 0 | - | 4.55 | 132,886 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,499 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,565 |
| Official European Union Languages | 0 | - | 4.97 | 239,416 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,434 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,142 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,260 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,024 |
| Asia Map Quiz | 0 | - | 4.99 | 922,899 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,150 |
| A Quiz About Islam | 0 | - | 4.31 | 48,563 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 35,069 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,807 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,155 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,245 |
| Australia Map Quiz | 0 | - | 4.95 | 345,735 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,356 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,818 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,249 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,816 |
| Brazil Country Quiz | 0 | - | 4.52 | 102,205 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,760 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,843 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,814 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,212 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,747 |
| Top U.S. Universities | 0 | - | 4.15 | 145,621 |
| Largest United States Airlines | 0 | - | 4.39 | 55,121 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,989 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,753 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,224 |
| U.S. States by Governor | 0 | - | 4.43 | 18,106 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,741 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,753 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,045 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,890 |
| Events in U.S. History | 0 | - | 4.41 | 28,781 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,172 |
| New England States | 0 | - | 4.51 | 59,872 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,987 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,087 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,579 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,297 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,029 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,220 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,085 |
| U.S. States by Borders | 0 | - | 4.61 | 35,432 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,635 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,255 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,227 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,400 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,854 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,175 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,941 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,794 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,381 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,468 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,811 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,236 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,160 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,534 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,925 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,190 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,041 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,240 |
