| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,322 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,166 |
| Word Chain - South America | 0 | - | 4.51 | 23,971 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,968 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,867 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,651 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,406 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,712 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,031 |
| North America Map Quiz | 0 | - | 4.98 | 250,746 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,926 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,199 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,207 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,466 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,788 |
| Famous People from South America | 0 | - | 4.15 | 22,054 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,220 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,641 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,030 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,706 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,772 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,614 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,811 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,792 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,177 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,695 |
| States of Mexico | 0 | - | 4.96 | 177,665 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,554 |
| States of Brazil | 0 | - | 4.97 | 89,228 |
| Central American Countries | 0 | - | 4.98 | 157,131 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,155 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,862 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,345 |
| History of Mexico | 0 | - | 4.52 | 15,357 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,730 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,814 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,954 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,515 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,085 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,570 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,762 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,564 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,898 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,837 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,653 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,930 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,938 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,317 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,046 |
| Australian Capitals | 0 | - | 4.92 | 62,805 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,751 |
| Famous Caribbean People | 0 | - | 4.37 | 12,649 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,123 |
| Territories of the United States | 0 | - | 4.80 | 52,558 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,824 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,955 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,417 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,291 |
| New York City Geography | 0 | - | 4.43 | 33,167 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,814 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,582 |
| Official European Union Languages | 0 | - | 4.97 | 239,453 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,455 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,983 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,946 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,680 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,217 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,133 |
| Asia Map Quiz | 0 | - | 4.99 | 923,128 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,102 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,281 |
| Australia Map Quiz | 0 | - | 4.95 | 345,787 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,304 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,359 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,833 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,441 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,823 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,584 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,414 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,756 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,702 |
| 75 Americans Named John | 0 | - | 4.41 | 23,957 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,138 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,860 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,182 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,799 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,393 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,473 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,818 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,246 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,176 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,538 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,936 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,198 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,044 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,405 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,469 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,844 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,298 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,745 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,223 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,752 |
| The Only European Country ... | 0 | - | 4.91 | 218,387 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,171 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,002 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,690 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,272 |
| Countries of Africa | 0 | - | 5.00 | 2,553,181 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,632 |
| African East Coast | 0 | - | 4.96 | 96,566 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,422 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,849 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,472 |
| Australian States and Territories | 0 | - | 4.96 | 142,633 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,447 |
| Australia True or False | 0 | - | 4.87 | 57,075 |
| Flags of North and South America | 0 | - | 4.99 | 375,919 |
| South American Physical Geography | 0 | - | 4.58 | 18,387 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,760 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,174 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,235 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,242 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,271 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,083 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,956 |
| Celtic Nations | 0 | - | 4.61 | 47,063 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,835 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,293 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,844 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,254 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,622 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,889 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,217 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,009 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,087 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,952 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,646 |
| Slavic Countries | 0 | - | 4.96 | 112,191 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,622 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,342 |
| Counties of England | 0 | - | 4.97 | 801,335 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,156 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,360 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,624 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,362 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,725 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,999 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,583 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,117 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,899 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,269 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,422 |
| Countries of the Middle East | 0 | - | 4.96 | 202,284 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,682 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,400 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,836 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,083 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,316 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,085 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,974 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,331 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,949 |
| African Island Countries | 0 | - | 4.96 | 102,256 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,311 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,571 |
| Flags of Oceania | 0 | - | 5.00 | 261,886 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,579 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,298 |
| Australia Country Quiz | 0 | - | 4.43 | 69,781 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,887 |
| Regions of New Zealand | 0 | - | 4.84 | 28,672 |
| The Only American Country ... | 0 | - | 4.92 | 122,060 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,512 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,062 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,576 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,176 |
| Which Island in the United States? | 0 | - | 4.29 | 29,713 |
| American Foods | 0 | - | 3.66 | 39,425 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,142 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,320 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,806 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,410 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,963 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,470 |
| Old West History | 0 | - | 4.34 | 15,292 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,530 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,973 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,767 |
| US States Quiz | 0 | - | 5.00 | 16,963,501 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,718 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,770 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,677 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,496 |
| US States with the Most Executions | 0 | - | 4.51 | 26,420 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,137 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,203 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,218 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,783 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,869 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,235 |
