| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,501 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,845 |
| Word Chain - South America | 0 | - | 4.51 | 24,007 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,621 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,980 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,822 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,681 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,762 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,704 |
| North America Map Quiz | 0 | - | 4.98 | 252,151 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,983 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,320 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,696 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,576 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,796 |
| Famous People from South America | 0 | - | 4.15 | 22,109 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,059 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,836 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,202 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,094 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,897 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,834 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,955 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,018 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,273 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,822 |
| States of Mexico | 0 | - | 4.96 | 178,320 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 54,876 |
| States of Brazil | 0 | - | 4.97 | 89,737 |
| Central American Countries | 0 | - | 4.98 | 157,365 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,611 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,651 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,386 |
| History of Mexico | 0 | - | 4.52 | 15,366 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,551 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,854 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,095 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,065 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,240 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,695 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,830 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,657 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,998 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,627 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,687 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,800 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,097 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,734 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,393 |
| Australian Capitals | 0 | - | 4.92 | 62,835 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,789 |
| Famous Caribbean People | 0 | - | 4.37 | 12,662 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,153 |
| Territories of the United States | 0 | - | 4.80 | 52,630 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,892 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,118 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,529 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 94,401 |
| New York City Geography | 0 | - | 4.43 | 33,189 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,880 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,739 |
| Official European Union Languages | 0 | - | 4.97 | 239,824 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,662 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,746 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,491 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,735 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,928 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,610 |
| Asia Map Quiz | 0 | - | 4.99 | 925,342 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,886 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,474 |
| Australia Map Quiz | 0 | - | 4.95 | 346,196 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,319 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,450 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,862 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,148 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,909 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,631 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,453 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,775 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,730 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,185 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,939 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,226 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,832 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,473 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,521 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,871 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,374 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,277 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,587 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,080 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,290 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 47,097 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,434 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,983 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,932 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,836 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,261 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,324 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,167 |
| The Only European Country ... | 0 | - | 4.91 | 219,077 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,548 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,060 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,963 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,378 |
| Countries of Africa | 0 | - | 5.00 | 2,560,426 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,921 |
| African East Coast | 0 | - | 4.96 | 96,786 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,639 |
| Australian States and Territories | 0 | - | 4.96 | 142,883 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,506 |
| Australia True or False | 0 | - | 4.87 | 57,156 |
| Flags of North and South America | 0 | - | 4.99 | 377,122 |
| South American Physical Geography | 0 | - | 4.58 | 18,405 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,785 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,197 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.62 | 45,269 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,276 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,290 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,182 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,507 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,404 |
| Celtic Nations | 0 | - | 4.61 | 47,102 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,818 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,539 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,078 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,838 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,781 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,032 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,814 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,870 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,483 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,197 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,804 |
| Slavic Countries | 0 | - | 4.96 | 112,382 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,698 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,452 |
| Counties of England | 0 | - | 4.97 | 803,051 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,802 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,489 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,837 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,548 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,932 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,176 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,837 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,332 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,098 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,652 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,617 |
| Countries of the Middle East | 0 | - | 4.96 | 202,979 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,744 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,521 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,729 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,486 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,774 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,327 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 36,618 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,651 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,281 |
| African Island Countries | 0 | - | 4.96 | 102,490 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,653 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,675 |
| Flags of Oceania | 0 | - | 5.00 | 262,775 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.95 | 27,727 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 146,543 |
| Australia Country Quiz | 0 | - | 4.43 | 69,840 |
| Australia... or New Zealand? | 0 | - | 4.83 | 62,020 |
| Regions of New Zealand | 0 | - | 4.84 | 28,747 |
| The Only American Country ... | 0 | - | 4.92 | 122,224 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,684 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,078 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,271 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,199 |
| Which Island in the United States? | 0 | - | 4.29 | 29,787 |
| American Foods | 0 | - | 3.66 | 39,441 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,155 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,336 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,821 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,447 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,983 |
| Old West History | 0 | - | 4.34 | 15,303 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,536 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,987 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,785 |
| US States Quiz | 0 | - | 5.00 | 16,998,983 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,737 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,796 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,721 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,539 |
| US States with the Most Executions | 0 | - | 4.51 | 26,424 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,167 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,273 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,248 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,824 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,917 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,255 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,903 |
| Canada Decoder | 0 | - | 4.07 | 18,774 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,526 |
