| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,485 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,526 |
| Word Chain - South America | 0 | - | 4.51 | 24,003 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,076 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,948 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,777 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,648 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,752 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,208 |
| North America Map Quiz | 0 | - | 4.98 | 251,988 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,974 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,113 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,529 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,554 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,796 |
| Famous People from South America | 0 | - | 4.15 | 22,101 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 904,979 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,808 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,176 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,000 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,882 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,812 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,933 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,985 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,251 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,802 |
| States of Mexico | 0 | - | 4.96 | 178,213 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,802 |
| States of Brazil | 0 | - | 4.97 | 89,680 |
| Central American Countries | 0 | - | 4.98 | 157,322 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,583 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,559 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,381 |
| History of Mexico | 0 | - | 4.52 | 15,364 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,447 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,850 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,071 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,039 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,220 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,670 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,818 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,645 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,983 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,502 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,678 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,643 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,066 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,662 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,345 |
| Australian Capitals | 0 | - | 4.92 | 62,828 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,787 |
| Famous Caribbean People | 0 | - | 4.37 | 12,660 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,147 |
| Territories of the United States | 0 | - | 4.80 | 52,619 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,885 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,088 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,519 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,386 |
| New York City Geography | 0 | - | 4.43 | 33,186 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,873 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,707 |
| Official European Union Languages | 0 | - | 4.97 | 239,762 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,617 |
| Europe Map Quiz | 0 | - | 5.00 | 4,787,502 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,257 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,729 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,821 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,409 |
| Asia Map Quiz | 0 | - | 4.99 | 925,013 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,476 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,452 |
| Australia Map Quiz | 0 | - | 4.95 | 346,133 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,319 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,438 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,857 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,047 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,891 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,626 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,447 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,772 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,724 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,179 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,930 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,219 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,827 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,459 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,513 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,861 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,361 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,263 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,582 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,059 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,267 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,087 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,430 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,904 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,906 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,754 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,198 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,307 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,076 |
| The Only European Country ... | 0 | - | 4.91 | 218,952 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,480 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,053 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,925 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,216 |
| Countries of Africa | 0 | - | 5.00 | 2,559,242 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,839 |
| African East Coast | 0 | - | 4.96 | 96,754 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,609 |
| Australian States and Territories | 0 | - | 4.96 | 142,851 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,501 |
| Australia True or False | 0 | - | 4.87 | 57,143 |
| Flags of North and South America | 0 | - | 4.99 | 376,870 |
| South American Physical Geography | 0 | - | 4.58 | 18,403 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,781 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,193 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.62 | 45,264 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,267 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,283 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,167 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,503 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,257,700 |
| Celtic Nations | 0 | - | 4.61 | 47,094 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,491 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,494 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,035 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,721 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,755 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,009 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,723 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,678 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,364 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,163 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,774 |
| Slavic Countries | 0 | - | 4.96 | 112,355 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,686 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,438 |
| Counties of England | 0 | - | 4.97 | 802,744 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,552 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,124 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,788 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,508 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,905 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,135 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,801 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,305 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,066 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,590 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,575 |
| Countries of the Middle East | 0 | - | 4.96 | 202,919 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,732 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,506 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,376 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,335 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,705 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,254 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,115 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,585 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,238 |
| African Island Countries | 0 | - | 4.96 | 102,426 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,611 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,654 |
| Flags of Oceania | 0 | - | 5.00 | 262,621 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.95 | 27,709 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 146,501 |
| Australia Country Quiz | 0 | - | 4.43 | 69,834 |
| Australia... or New Zealand? | 0 | - | 4.83 | 62,000 |
| Regions of New Zealand | 0 | - | 4.84 | 28,740 |
| The Only American Country ... | 0 | - | 4.92 | 122,208 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,656 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,078 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,154 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,191 |
| Which Island in the United States? | 0 | - | 4.29 | 29,777 |
| American Foods | 0 | - | 3.66 | 39,437 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,154 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,329 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,821 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,444 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,982 |
| Old West History | 0 | - | 4.34 | 15,299 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,534 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,984 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,780 |
| US States Quiz | 0 | - | 5.00 | 16,993,095 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,736 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,790 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,714 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,529 |
| US States with the Most Executions | 0 | - | 4.51 | 26,424 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,161 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,262 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,247 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,819 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,908 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,252 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,890 |
| Canada Decoder | 0 | - | 4.07 | 18,767 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,490 |
