| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,807 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,307 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,963 |
| Central American Countries | 0 | - | 4.98 | 156,779 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,639 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,874 |
| North America Map Quiz | 0 | - | 4.98 | 249,479 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,692 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,725 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,191 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,845 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,409 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 220,825 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,616 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,759 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,619 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,412 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,030 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,097 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,964 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,068 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,706 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,291 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,952 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,420 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,668 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,451 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,723 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,327 |
| Official European Union Languages | 0 | - | 4.97 | 238,928 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,135 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,737 |
| History of Mexico | 0 | - | 4.58 | 15,335 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,766 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,191 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,583 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,457 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,716 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,403 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,122 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,823 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,640 |
| Official and Regional Languages of Europe on a Map | 0 | - | 4.99 | 112,272 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,650 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,593 |
| Territories of the United States | 0 | - | 4.80 | 52,469 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,742 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,688 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,292 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,133 |
| New York City Geography | 0 | - | 4.42 | 33,127 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,710 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,591 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,602 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,577 |
| States of Mexico | 0 | - | 4.96 | 176,791 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,175 |
| Word Chain - South America | 0 | - | 4.51 | 23,930 |
| States of Brazil | 0 | - | 4.97 | 88,605 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,715 |
| Famous Caribbean People | 0 | - | 4.37 | 12,633 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,078 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,521 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,368 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,736 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,670 |
| 75 Americans Named John | 0 | - | 4.41 | 23,929 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,076 |
| New York True or False? | 0 | - | 4.53 | 33,859 |
| The Most Recent... United States | 0 | - | 4.46 | 18,499 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,746 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,104 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,750 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,291 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,423 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,754 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,069 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,023 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,471 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,747 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,082 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,971 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,525 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,361 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,298 |
| Peru True or False? | 0 | - | 4.58 | 15,272 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,132 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,180 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,200 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,242 |
| Slavic Languages | 0 | - | 4.67 | 54,467 |
| Famous People from South America | 0 | - | 4.15 | 22,020 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,151 |
| Which Island in the United States? | 0 | - | 4.29 | 29,607 |
| American Foods | 0 | - | 3.66 | 39,401 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,133 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,290 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,777 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,364 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,921 |
| U.S. Analogies | 0 | - | 4.27 | 19,691 |
| U.S. Groups of Five | 0 | - | 4.21 | 21,618 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,416 |
| Florida True or False? | 0 | - | 4.48 | 28,712 |
| Old West History | 0 | - | 4.34 | 15,285 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,528 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,952 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,749 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,733 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,618 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,448 |
| US States with the Most Executions | 0 | - | 4.51 | 26,406 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,104 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,094 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,181 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,748 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,834 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,212 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,727 |
| Canada Decoder | 0 | - | 4.07 | 18,734 |
| Which Canadian Province? | 0 | - | 4.75 | 9,747 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,383 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,595 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,351 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,581 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,601 |
| North America Cities by Map | 0 | - | 4.41 | 47,850 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,617 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,390 |
| California Multiple Choice | 0 | - | 4.40 | 28,124 |
| San Francisco Trivia | 0 | - | 4.32 | 15,712 |
| San Francisco A-Z | 0 | - | 4.18 | 9,582 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,187 |
| Boston City Trivia | 0 | - | 4.38 | 24,179 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,681 |
| Europe Map Quiz | 0 | - | 5.00 | 4,771,326 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,594 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,704 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,553 |
| Top World Languages | 0 | - | 4.92 | 824,510 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,853 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,177 |
| Oceania Map Quiz | 0 | - | 4.98 | 652,499 |
| Australian Capitals | 0 | - | 4.92 | 62,754 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,793 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,088 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,261 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,617 |
| Top 10 Most Religious U.S. States | 0 | - | 4.32 | 19,380 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,491 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.30 | 30,937 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,614 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,358 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,861 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,578 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,569 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,063 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,945 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,746 |
| Asia Map Quiz | 0 | - | 4.99 | 919,730 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,181 |
| Countries by Official Language | 0 | - | 4.95 | 195,286 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,315 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,418 |
| Countries in their Native Language | 0 | - | 4.99 | 199,077 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,123 |
| Countries of Africa | 0 | - | 5.00 | 2,545,098 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,107 |
| African East Coast | 0 | - | 4.96 | 96,285 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,154 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,933 |
| Australia Map Quiz | 0 | - | 4.95 | 345,166 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,282 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,267 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,791 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,392 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,603 |
| South American Physical Geography | 0 | - | 4.58 | 18,367 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,732 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,339 |
| American Inventions #1 | 0 | - | 3.63 | 31,513 |
| American Inventions #2 | 0 | - | 3.93 | 15,873 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,821 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,583 |
| Shrinking U.S. States | 0 | - | 4.38 | 40,380 |
| University of California Campuses | 0 | - | 3.84 | 8,924 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,417 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,812 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,743 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,060 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,581 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,050 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,112 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,689 |
| The Only European Country ... | 0 | - | 4.91 | 217,409 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,589 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,916 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,298 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,870 |
