| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,295 |
| South America Map Quiz | 0 | - | 5.00 | 1,553,856 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,913 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,445 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,537 |
| Official European Union Languages | 0 | - | 4.97 | 239,379 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,404 |
| Word Chain - South America | 0 | - | 4.51 | 23,965 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,691 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,220 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,852 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,617 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,370 |
| Peru True or False? | 0 | - | 4.58 | 15,296 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,702 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,532 |
| North America Map Quiz | 0 | - | 4.98 | 250,536 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,006 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,981 |
| Official and Regional Languages of Europe on a Map | 0 | - | 4.99 | 112,796 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,856 |
| Official and Regional Languages of Asia on a Map | 0 | - | 5.00 | 69,013 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,673 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,882 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,115 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,788 |
| Famous People from South America | 0 | - | 4.15 | 22,044 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,517 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,006 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,645 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,750 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,559 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,785 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,733 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,164 |
| U.S. History Timeline Quiz | 0 | - | 4.96 | 57,116 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,676 |
| States of Mexico | 0 | - | 4.96 | 177,528 |
| History of Mexico | 0 | - | 4.58 | 15,353 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,488 |
| States of Brazil | 0 | - | 4.97 | 89,144 |
| Central American Countries | 0 | - | 4.98 | 157,073 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,122 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,733 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,334 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,758 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,807 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,929 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,491 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,062 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,555 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,747 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,549 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,876 |
| Slavic Languages | 0 | - | 4.68 | 54,591 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,909 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,248 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,648 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,613 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,603 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,620 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,738 |
| Famous Caribbean People | 0 | - | 4.37 | 12,648 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,111 |
| Territories of the United States | 0 | - | 4.80 | 52,546 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,814 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,929 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,393 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,266 |
| New York City Geography | 0 | - | 4.43 | 33,162 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,800 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,515 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,796 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,241 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,004 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,101 |
| Top World Languages | 0 | - | 4.92 | 827,201 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,210 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,653 |
| Australian Capitals | 0 | - | 4.92 | 62,800 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,672 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,066 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,011 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,949 |
| Asia Map Quiz | 0 | - | 4.99 | 922,718 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,300 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,551 |
| Countries by Official Language | 0 | - | 4.95 | 195,642 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,926 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,081 |
| Countries in their Native Language | 0 | - | 4.99 | 199,418 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,439 |
| Countries of the World in All Featured Languages | 0 | - | 4.99 | 35,541 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,198 |
| Australia Map Quiz | 0 | - | 4.95 | 345,702 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,301 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,351 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,830 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,810 |
| South American Physical Geography | 0 | - | 4.58 | 18,385 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,574 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,408 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,747 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,698 |
| 75 Americans Named John | 0 | - | 4.41 | 23,951 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,125 |
| New York True or False? | 0 | - | 4.53 | 33,907 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,171 |
| The Most Recent... United States | 0 | - | 4.46 | 18,538 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,222 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,846 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,169 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,789 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,373 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,463 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,806 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,230 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,155 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,529 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,917 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,183 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,038 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,237 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,643 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,397 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,264 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,352 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,819 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,138 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,201 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,654 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,207 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,655 |
| The Only European Country ... | 0 | - | 4.91 | 218,246 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,094 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,988 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,659 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,076 |
| Countries of Africa | 0 | - | 5.00 | 2,551,950 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,581 |
| African East Coast | 0 | - | 4.96 | 96,519 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,395 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,593 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,867 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,586 |
| German-Speaking Countries | 0 | - | 4.92 | 145,895 |
| Italian Name Translation | 0 | - | 4.83 | 47,643 |
| French-Speaking Countries | 0 | - | 4.85 | 271,298 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,640 |
| Flags of Oceania | 0 | - | 5.00 | 261,675 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,523 |
| Australian States and Territories | 0 | - | 4.96 | 142,561 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,254 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,431 |
| Australia True or False | 0 | - | 4.87 | 57,053 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,861 |
| Regions of New Zealand | 0 | - | 4.84 | 28,654 |
| Flags of North and South America | 0 | - | 4.99 | 375,685 |
| The Only American Country ... | 0 | - | 4.92 | 122,029 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,485 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,060 |
| South American Geography Quiz #2 | 0 | - | 4.40 | 43,286 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,419 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,173 |
| Which Island in the United States? | 0 | - | 4.29 | 29,689 |
| American Foods | 0 | - | 3.66 | 39,424 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,137 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,314 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,800 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,402 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,956 |
| U.S. Analogies | 0 | - | 4.27 | 19,710 |
| U.S. Groups of Five | 0 | - | 4.21 | 21,666 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,462 |
| Florida True or False? | 0 | - | 4.48 | 28,746 |
| Old West History | 0 | - | 4.34 | 15,292 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,529 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,970 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,767 |
| US States Quiz | 0 | - | 5.00 | 16,957,327 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,716 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,760 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,667 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,489 |
| US States with the Most Executions | 0 | - | 4.51 | 26,417 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,131 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,186 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,211 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,780 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,864 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,229 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.05 | 28,806 |
| Canada Decoder | 0 | - | 4.07 | 18,752 |
| Which Canadian Province? | 0 | - | 4.75 | 9,773 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,352 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,065 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,419 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,808 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,464 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,436 |
