| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,179 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,390 |
| Word Chain - South America | 0 | - | 4.51 | 23,947 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,758 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,750 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,462 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,207 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,655 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,805 |
| North America Map Quiz | 0 | - | 4.98 | 249,768 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,834 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,172 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,188 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,360 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| Famous People from South America | 0 | - | 4.15 | 22,031 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,162 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,304 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,915 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,485 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,652 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,825 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,666 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,500 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,076 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,617 |
| States of Mexico | 0 | - | 4.96 | 177,084 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,276 |
| States of Brazil | 0 | - | 4.97 | 88,829 |
| Central American Countries | 0 | - | 4.98 | 156,889 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,025 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,267 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,312 |
| History of Mexico | 0 | - | 4.58 | 15,341 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,920 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,781 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,743 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,337 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,982 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,449 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,699 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,477 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,775 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,143 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,616 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,962 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,804 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,874 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,742 |
| Australian Capitals | 0 | - | 4.92 | 62,775 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,722 |
| Famous Caribbean People | 0 | - | 4.37 | 12,639 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,090 |
| Territories of the United States | 0 | - | 4.80 | 52,490 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,762 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,767 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,321 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,177 |
| New York City Geography | 0 | - | 4.42 | 33,138 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,738 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,398 |
| Official European Union Languages | 0 | - | 4.97 | 239,074 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,230 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,249 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,681 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,626 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,498 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,043 |
| Asia Map Quiz | 0 | - | 4.99 | 920,562 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,926 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,033 |
| Australia Map Quiz | 0 | - | 4.95 | 345,383 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,287 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,299 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,805 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,719 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,536 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,380 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,740 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,684 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,087 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,770 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,117 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,763 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,320 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,440 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,767 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,115 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,061 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,491 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,793 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,106 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,988 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,378 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,000 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,769 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,819 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,288 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,148 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,888 |
| The Only European Country ... | 0 | - | 4.91 | 217,706 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,785 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,937 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,427 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,272 |
| Countries of Africa | 0 | - | 5.00 | 2,547,521 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,191 |
| African East Coast | 0 | - | 4.96 | 96,385 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,230 |
| Australian States and Territories | 0 | - | 4.96 | 142,350 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,384 |
| Australia True or False | 0 | - | 4.87 | 56,990 |
| Flags of North and South America | 0 | - | 4.99 | 374,801 |
| South American Physical Geography | 0 | - | 4.58 | 18,377 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,739 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,144 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,191 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,214 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,247 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,997 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,444 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,250,251 |
| Celtic Nations | 0 | - | 4.69 | 47,008 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,691 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,038 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,546 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,663 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,456 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,708 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,626 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,813 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,784 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,688 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,493 |
| Slavic Countries | 0 | - | 4.96 | 111,988 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,519 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,249 |
| Counties of England | 0 | - | 4.97 | 799,767 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,744 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,682 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,477 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,107 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,431 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,299 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,338 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,883 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,727 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,946 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,239 |
| Countries of the Middle East | 0 | - | 4.96 | 201,858 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,627 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,285 |
| Flags of Africa Quiz | 0 | - | 5.00 | 474,062 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,496 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,865 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,569 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,496 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,996 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,627 |
| African Island Countries | 0 | - | 4.96 | 101,962 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,041 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,476 |
| Flags of Oceania | 0 | - | 5.00 | 260,951 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,467 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,044 |
| Australia Country Quiz | 0 | - | 4.43 | 69,699 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,758 |
| Regions of New Zealand | 0 | - | 4.84 | 28,614 |
| The Only American Country ... | 0 | - | 4.92 | 121,885 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,346 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,046 |
| South American Geography Quiz #2 | 0 | - | 4.37 | 42,067 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,869 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,157 |
| Which Island in the United States? | 0 | - | 4.29 | 29,636 |
| American Foods | 0 | - | 3.66 | 39,412 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,135 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,295 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,785 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,374 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,932 |
| Old West History | 0 | - | 4.34 | 15,288 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,529 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,962 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,752 |
| US States Quiz | 0 | - | 5.00 | 16,932,079 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,693 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,746 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,633 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,464 |
| US States with the Most Executions | 0 | - | 4.51 | 26,413 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,108 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,119 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,192 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,757 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,845 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,220 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.03 | 28,754 |
| Canada Decoder | 0 | - | 4.07 | 18,741 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,269 |
