| United States Map Quiz | 0 | - | 4.98 | 4,149,722 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,211 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,582 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,258 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,940 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,224 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,543 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,727 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,257 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,623 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,418 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,924 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,358 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,021 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,257 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,268 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,266 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,263 |
| North America Map Quiz | 0 | - | 4.98 | 246,926 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,929 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,073 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,504 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,366 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,593 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 218,497 |
| Most Common High School Mascots | 0 | - | 4.47 | 31,990 |
| New York True or False? | 0 | - | 4.53 | 33,755 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,767 |
| Central American Countries | 0 | - | 4.98 | 155,634 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,125 |
| Territories of the United States | 0 | - | 4.79 | 52,278 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,514 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,074 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,990 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,757 |
| New York City Geography | 0 | - | 4.42 | 33,033 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,369 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,805 |
| Florida True or False? | 0 | - | 4.48 | 28,616 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,695 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,656 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,740 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,387 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,218 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,683 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,581 |
| 75 Americans Named John | 0 | - | 4.41 | 23,872 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,921 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,496 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,920 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,531 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,055 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,302 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,581 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,642 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,628 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,304 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,253 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,825 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,548 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,169 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,133 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,446 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,464 |
| The Only European Country ... | 0 | - | 4.91 | 215,418 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,470 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,659 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,290 |
| California Multiple Choice | 0 | - | 4.40 | 28,072 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,175 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 45,052 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,095 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,461 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,439 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,591 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,007 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,508 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,736 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,059 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,035 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,210 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,544 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,435 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,906 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,531 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,236,359 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,244 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,237 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,775 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,654 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,838 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,531 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,792 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,826 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,584 |
| Slavic Countries | 0 | - | 4.96 | 111,326 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,802 |
| Counties of England | 0 | - | 4.97 | 793,235 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,030 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,477 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,087 |
| Which Island in the United States? | 0 | - | 4.29 | 29,356 |
| American Foods | 0 | - | 3.66 | 39,336 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,121 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,193 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,703 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,261 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,850 |
| U.S. Analogies | 0 | - | 4.27 | 19,646 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,272 |
| Old West History | 0 | - | 4.33 | 15,247 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,511 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,897 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,645 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,488 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,288 |
| US States with the Most Executions | 0 | - | 4.51 | 26,377 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,000 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,839 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,085 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,250 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,658 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,506 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,044 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,635 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,319 |
| Monarchies of Europe | 0 | - | 4.90 | 97,769 |
| European Countries with One Border | 0 | - | 4.97 | 182,238 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,097 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,741 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,639 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,947 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,070 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,561 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,449 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,616 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,584 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,927 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,307 |
| States of Germany | 0 | - | 4.96 | 151,321 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,670 |
| Regions of Italy | 0 | - | 4.92 | 75,307 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 50,841 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,315 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,796 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,405 |
| Champions League Winners | 0 | - | 4.92 | 1,001,635 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,585 |
| US States Quiz | 0 | - | 5.00 | 16,795,606 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,268 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,618 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,325 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,255 |
| Countries That Border Russia | 0 | - | 4.98 | 460,566 |
| Countries Bordering France | 0 | - | 4.83 | 401,369 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,184 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,631 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,186 |
| History of Mexico | 0 | - | 4.58 | 15,271 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,622 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,631 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,136 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,886 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,577 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 330,221 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,724 |
| San Francisco Trivia | 0 | - | 4.32 | 15,686 |
| San Francisco A-Z | 0 | - | 4.18 | 9,548 |
| Boston City Trivia | 0 | - | 4.38 | 24,155 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 65,958 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,265 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,706 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,580 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,074 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,863 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,262 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,137 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,042 |
| Russia Country Quiz | 0 | - | 4.85 | 114,108 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,143 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,222 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,144 |
| Departments of France | 0 | - | 4.93 | 53,453 |
| Germany Country Quiz | 0 | - | 4.82 | 157,300 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,679 |
| Italy Country Quiz | 0 | - | 4.82 | 122,786 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,912 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,599 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,466 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,511 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,135 |
| Name the English Monarchs | 0 | - | 4.92 | 500,525 |
| England or Wales? | 0 | - | 4.94 | 45,518 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,401 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,160 |
| Peru True or False? | 0 | - | 4.58 | 15,224 |
| Pixelated United States Map | 0 | - | 4.89 | 93,892 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,105 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,345 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,678,708 |
