| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,522 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,994 |
| Word Chain - South America | 0 | - | 4.51 | 24,007 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,938 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,016 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,878 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,695 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,764 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,989 |
| North America Map Quiz | 0 | - | 4.98 | 252,226 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,992 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,426 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,757 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,589 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,799 |
| Famous People from South America | 0 | - | 4.15 | 22,115 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,099 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,849 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,221 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,130 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,906 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,850 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,973 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,052 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,284 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,827 |
| States of Mexico | 0 | - | 4.96 | 178,350 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 54,908 |
| States of Brazil | 0 | - | 4.97 | 89,797 |
| Central American Countries | 0 | - | 4.98 | 157,383 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,621 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,739 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,390 |
| History of Mexico | 0 | - | 4.52 | 15,367 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,619 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,855 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,101 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,079 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,255 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,705 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,837 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,668 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 68,007 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,699 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,692 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,894 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,110 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,779 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,457 |
| Australian Capitals | 0 | - | 4.92 | 62,837 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,793 |
| Famous Caribbean People | 0 | - | 4.37 | 12,663 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,154 |
| Territories of the United States | 0 | - | 4.80 | 52,635 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,896 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,136 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,537 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 94,409 |
| New York City Geography | 0 | - | 4.43 | 33,190 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,887 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,761 |
| Official European Union Languages | 0 | - | 4.97 | 239,858 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,689 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,384 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,641 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,736 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,024 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,717 |
| Asia Map Quiz | 0 | - | 4.99 | 925,520 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,188 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,487 |
| Australia Map Quiz | 0 | - | 4.95 | 346,245 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,323 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,456 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,864 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,194 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,914 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,631 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,458 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,775 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,732 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,188 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,942 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,232 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,834 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,477 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,525 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,874 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,385 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,286 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,588 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,090 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,300 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,437 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,037 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,944 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,902 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,312 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,332 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,225 |
| The Only European Country ... | 0 | - | 4.91 | 219,168 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,597 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,065 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,992 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,467 |
| Countries of Africa | 0 | - | 5.00 | 2,561,184 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,029 |
| African East Coast | 0 | - | 4.96 | 96,807 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,663 |
| Australian States and Territories | 0 | - | 4.96 | 142,897 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,509 |
| Australia True or False | 0 | - | 4.87 | 57,160 |
| Flags of North and South America | 0 | - | 4.99 | 377,275 |
| South American Physical Geography | 0 | - | 4.58 | 18,406 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,788 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,203 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.62 | 45,271 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,277 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,290 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,195 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,512 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,874 |
| Celtic Nations | 0 | - | 4.61 | 47,105 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,060 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,607 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,117 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,925 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,805 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,046 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,844 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,995 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,523 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,229 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,816 |
| Slavic Countries | 0 | - | 4.96 | 112,407 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,703 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,469 |
| Counties of England | 0 | - | 4.97 | 803,243 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,906 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,709 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,851 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,587 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,963 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,200 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,864 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,352 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,113 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,684 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,639 |
| Countries of the Middle East | 0 | - | 4.96 | 203,012 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,756 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,525 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,972 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,802 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,897 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,459 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 43,280 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,732 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,306 |
| African Island Countries | 0 | - | 4.96 | 102,577 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,683 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,729 |
| Flags of Oceania | 0 | - | 5.00 | 262,893 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.95 | 27,744 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 146,560 |
| Australia Country Quiz | 0 | - | 4.43 | 69,845 |
| Australia... or New Zealand? | 0 | - | 4.83 | 62,032 |
| Regions of New Zealand | 0 | - | 4.84 | 28,752 |
| The Only American Country ... | 0 | - | 4.92 | 122,236 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,690 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,080 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,293 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,203 |
| Which Island in the United States? | 0 | - | 4.29 | 29,791 |
| American Foods | 0 | - | 3.66 | 39,444 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,155 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,337 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,823 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,453 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,984 |
| Old West History | 0 | - | 4.34 | 15,303 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,536 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,988 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,786 |
| US States Quiz | 0 | - | 5.00 | 17,002,340 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,738 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,801 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,725 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,545 |
| US States with the Most Executions | 0 | - | 4.51 | 26,424 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,170 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,278 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 47,100 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,253 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,824 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,920 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,256 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,913 |
| Canada Decoder | 0 | - | 4.07 | 18,776 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,535 |
