| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,115 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,942 |
| Word Chain - South America | 0 | - | 4.51 | 23,934 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,826 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,725 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,419 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,135 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,643 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,083 |
| North America Map Quiz | 0 | - | 4.98 | 249,545 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,812 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,764 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,793 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,318 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| Famous People from South America | 0 | - | 4.15 | 22,022 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,999 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,223 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,864 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,422 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,622 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,767 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,623 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,424 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,037 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,584 |
| States of Mexico | 0 | - | 4.96 | 176,829 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,199 |
| States of Brazil | 0 | - | 4.97 | 88,664 |
| Central American Countries | 0 | - | 4.98 | 156,807 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,976 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,102 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,301 |
| History of Mexico | 0 | - | 4.58 | 15,336 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,673 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,770 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,715 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,299 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,957 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,428 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,674 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,455 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,731 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 220,874 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,587 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,660 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,749 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,731 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,625 |
| Australian Capitals | 0 | - | 4.92 | 62,757 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,716 |
| Famous Caribbean People | 0 | - | 4.37 | 12,635 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,079 |
| Territories of the United States | 0 | - | 4.80 | 52,474 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,743 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,698 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,296 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,145 |
| New York City Geography | 0 | - | 4.42 | 33,128 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,714 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,343 |
| Official European Union Languages | 0 | - | 4.97 | 238,959 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,153 |
| Europe Map Quiz | 0 | - | 5.00 | 4,771,950 |
| Oceania Map Quiz | 0 | - | 4.98 | 653,802 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,606 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,123 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,801 |
| Asia Map Quiz | 0 | - | 4.99 | 919,885 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,075 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,957 |
| Australia Map Quiz | 0 | - | 4.95 | 345,232 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,283 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,270 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,794 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,396 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,605 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,526 |
| 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 | 52,672 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,079 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,751 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,107 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,752 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,299 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,426 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,756 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,075 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,030 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,476 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,760 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,090 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,976 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,363 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,848 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,744 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,621 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,105 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,120 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,728 |
| The Only European Country ... | 0 | - | 4.91 | 217,454 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,618 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,917 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,329 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,980 |
| Countries of Africa | 0 | - | 5.00 | 2,545,603 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,128 |
| African East Coast | 0 | - | 4.96 | 96,305 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,168 |
| Australian States and Territories | 0 | - | 4.96 | 142,258 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,369 |
| Australia True or False | 0 | - | 4.87 | 56,958 |
| Flags of North and South America | 0 | - | 4.99 | 374,435 |
| South American Physical Geography | 0 | - | 4.58 | 18,367 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,734 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,134 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,183 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,202 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,243 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,967 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,433 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,950 |
| Celtic Nations | 0 | - | 4.69 | 46,998 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,944 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,952 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,458 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,432 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,370 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,545 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,374 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,204 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,674 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,585 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,431 |
| Slavic Countries | 0 | - | 4.96 | 111,902 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,481 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,206 |
| Counties of England | 0 | - | 4.97 | 799,055 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,294 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,035 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,421 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,052 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,384 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,240 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,260 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,815 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,664 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,804 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,142 |
| Countries of the Middle East | 0 | - | 4.96 | 201,732 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,603 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,110 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,359 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,393 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,811 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,502 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,448 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,874 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,480 |
| African Island Countries | 0 | - | 4.96 | 101,897 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,881 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,427 |
| Flags of Oceania | 0 | - | 5.00 | 260,626 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,440 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 145,746 |
| Australia Country Quiz | 0 | - | 4.43 | 69,673 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,715 |
| Regions of New Zealand | 0 | - | 4.84 | 28,593 |
| The Only American Country ... | 0 | - | 4.92 | 121,835 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,292 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,037 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,628 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,151 |
| Which Island in the United States? | 0 | - | 4.29 | 29,612 |
| American Foods | 0 | - | 3.66 | 39,402 |
| 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 | 6,528 |
| 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 | 16,921,167 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,685 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,735 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,620 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,450 |
| 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 | 48,099 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,184 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,748 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,836 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,216 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,734 |
| Canada Decoder | 0 | - | 4.07 | 18,736 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,229 |
