| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,130 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,980 |
| Word Chain - South America | 0 | - | 4.51 | 23,938 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,909 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,727 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,424 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,137 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,644 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,161 |
| North America Map Quiz | 0 | - | 4.98 | 249,569 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,812 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,803 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,855 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,320 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| Famous People from South America | 0 | - | 4.15 | 22,023 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,016 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,232 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,874 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,426 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,624 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,771 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,627 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,425 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,043 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,586 |
| States of Mexico | 0 | - | 4.96 | 176,845 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,210 |
| States of Brazil | 0 | - | 4.97 | 88,682 |
| Central American Countries | 0 | - | 4.98 | 156,812 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,982 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,127 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,301 |
| History of Mexico | 0 | - | 4.58 | 15,339 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,721 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,772 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,717 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,303 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,964 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,429 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,676 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,457 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,737 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 220,901 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,588 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,707 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,755 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,742 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,635 |
| Australian Capitals | 0 | - | 4.92 | 62,759 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,717 |
| Famous Caribbean People | 0 | - | 4.37 | 12,636 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,079 |
| Territories of the United States | 0 | - | 4.80 | 52,476 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,745 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,708 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,297 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,147 |
| New York City Geography | 0 | - | 4.42 | 33,129 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,716 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,345 |
| Official European Union Languages | 0 | - | 4.97 | 238,968 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,157 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,245 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,131 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,606 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,157 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,821 |
| Asia Map Quiz | 0 | - | 4.99 | 919,955 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,195 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,964 |
| Australia Map Quiz | 0 | - | 4.95 | 345,246 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,283 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,272 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,795 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 40,124 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,623 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,527 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,370 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,738 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,676 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,079 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,755 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,108 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,754 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,300 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,427 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,757 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,080 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,033 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,479 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,765 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,091 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,976 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,364 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,862 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,746 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,637 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,114 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,121 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,736 |
| The Only European Country ... | 0 | - | 4.91 | 217,478 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,627 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,920 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,345 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,008 |
| Countries of Africa | 0 | - | 5.00 | 2,545,867 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,135 |
| African East Coast | 0 | - | 4.96 | 96,310 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,170 |
| Australian States and Territories | 0 | - | 4.96 | 142,263 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,371 |
| Australia True or False | 0 | - | 4.87 | 56,961 |
| Flags of North and South America | 0 | - | 4.99 | 374,465 |
| South American Physical Geography | 0 | - | 4.58 | 18,368 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,734 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,135 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,184 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,203 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,243 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,969 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,434 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,067 |
| Celtic Nations | 0 | - | 4.69 | 47,002 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,024 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,955 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,464 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,455 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,374 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,548 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,433 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,317 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,687 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,596 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,438 |
| Slavic Countries | 0 | - | 4.96 | 111,910 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,486 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,212 |
| Counties of England | 0 | - | 4.97 | 799,138 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,333 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,103 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,432 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,058 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,389 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,245 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,271 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,822 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,669 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,825 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,146 |
| Countries of the Middle East | 0 | - | 4.96 | 201,748 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,606 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,112 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,427 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,403 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,816 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,509 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,452 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,888 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,491 |
| African Island Countries | 0 | - | 4.96 | 101,901 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,897 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,430 |
| Flags of Oceania | 0 | - | 5.00 | 260,661 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,440 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 145,766 |
| Australia Country Quiz | 0 | - | 4.43 | 69,677 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,719 |
| Regions of New Zealand | 0 | - | 4.84 | 28,598 |
| The Only American Country ... | 0 | - | 4.92 | 121,837 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,299 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,038 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,646 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,151 |
| Which Island in the United States? | 0 | - | 4.29 | 29,614 |
| American Foods | 0 | - | 3.66 | 39,404 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,133 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,291 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,777 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,365 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,922 |
| Old West History | 0 | - | 4.34 | 15,285 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,529 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,954 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,749 |
| US States Quiz | 0 | - | 5.00 | 16,922,351 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,687 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,737 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,622 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,451 |
| US States with the Most Executions | 0 | - | 4.51 | 26,407 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,105 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,100 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,185 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,749 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,837 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,217 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,738 |
| Canada Decoder | 0 | - | 4.07 | 18,737 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,231 |
