| Countries of South America with an Empty Map | 0 | - | 4.95 | 105,528 |
| South America Map Quiz | 0 | - | 5.00 | 1,557,019 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,994 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,594 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,762 |
| Official European Union Languages | 0 | - | 4.97 | 239,865 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,693 |
| Word Chain - South America | 0 | - | 4.51 | 24,007 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,977 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,709 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,017 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,884 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,700 |
| Peru True or False? | 0 | - | 4.58 | 15,322 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,766 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,025 |
| North America Map Quiz | 0 | - | 4.98 | 252,244 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,443 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,772 |
| Official and Regional Languages of Europe on a Map | 0 | - | 4.99 | 113,339 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,117 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,759 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,312 |
| Famous People from South America | 0 | - | 4.15 | 22,115 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,108 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,851 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,225 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,140 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,908 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,854 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,974 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,055 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,284 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,799 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,828 |
| States of Mexico | 0 | - | 4.96 | 178,363 |
| History of Mexico | 0 | - | 4.52 | 15,367 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 54,909 |
| States of Brazil | 0 | - | 4.97 | 89,801 |
| Central American Countries | 0 | - | 4.98 | 157,384 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,623 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,744 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,391 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,855 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,102 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,081 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,257 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,707 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,840 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,668 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 68,010 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,622 |
| Slavic Languages | 0 | - | 4.67 | 54,713 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,332 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,693 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,879 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,907 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,113 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,785 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,682 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,462 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,795 |
| Famous Caribbean People | 0 | - | 4.37 | 12,665 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,154 |
| Territories of the United States | 0 | - | 4.80 | 52,635 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,899 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,139 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,538 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 94,410 |
| New York City Geography | 0 | - | 4.43 | 33,191 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,888 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,451 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,778 |
| Top World Languages | 0 | - | 4.92 | 830,240 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,249 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,664 |
| Australian Capitals | 0 | - | 4.92 | 62,838 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,736 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,031 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,067 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,735 |
| Asia Map Quiz | 0 | - | 4.99 | 925,557 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,422 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,232 |
| Countries by Official Language | 0 | - | 4.95 | 196,069 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,432 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,723 |
| Countries in their Native Language | 0 | - | 4.99 | 199,799 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,996 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,490 |
| Australia Map Quiz | 0 | - | 4.95 | 346,249 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,323 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,459 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,864 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,197 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,914 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,632 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,459 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,775 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,732 |
| 75 Americans Named John | 0 | - | 4.41 | 23,977 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,190 |
| New York True or False? | 0 | - | 4.53 | 33,967 |
| The Most Recent... United States | 0 | - | 4.46 | 18,581 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,943 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,233 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,834 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,478 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,525 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,875 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,386 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,288 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,592 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,092 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,300 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,761 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,437 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,045 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,945 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,255 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,912 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,325 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,334 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,234 |
| The Only European Country ... | 0 | - | 4.91 | 219,179 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,604 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,065 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,997 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,475 |
| Countries of Africa | 0 | - | 5.00 | 2,561,288 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,040 |
| African East Coast | 0 | - | 4.96 | 96,812 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,663 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,934 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,986 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,703 |
| German-Speaking Countries | 0 | - | 4.92 | 146,043 |
| Italian Name Translation | 0 | - | 4.83 | 48,017 |
| French-Speaking Countries | 0 | - | 4.85 | 271,730 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,919 |
| Australian States and Territories | 0 | - | 4.96 | 142,897 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,511 |
| Australia True or False | 0 | - | 4.87 | 57,160 |
| Flags of North and South America | 0 | - | 4.99 | 377,300 |
| South American Physical Geography | 0 | - | 4.58 | 18,407 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,788 |
| Florida True or False? | 0 | - | 4.48 | 28,782 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,203 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,786 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.62 | 45,272 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,801 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,726 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,547 |
| US States with the Most Executions | 0 | - | 4.51 | 26,426 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,170 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,278 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 47,101 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,277 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,253 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,825 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,923 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,292 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,196 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 69,089 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,512 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,529 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,943 |
| Celtic Nations | 0 | - | 4.61 | 47,105 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,084 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,612 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,124 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,933 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,807 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,050 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,888 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,004 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,530 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,233 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,817 |
| Slavic Countries | 0 | - | 4.96 | 112,412 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,704 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,473 |
| Languages of Spain | 0 | - | 4.36 | 23,443 |
| Counties of England | 0 | - | 4.97 | 803,258 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,919 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,754 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,853 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,594 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,965 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,200 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,868 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,356 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,697 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,645 |
| Countries of the Middle East | 0 | - | 4.96 | 203,021 |
| Officially Recognized Languages of India | 0 | - | 4.40 | 31,604 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,527 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,041 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,825 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,903 |
