| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,858 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,837 |
| States of Brazil | 0 | - | 4.97 | 87,858 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,860 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,047 |
| Word Chain - South America | 0 | - | 4.51 | 23,891 |
| States of Mexico | 0 | - | 4.95 | 175,822 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,002 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,367 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,739 |
| United States Map Quiz | 0 | - | 4.98 | 4,156,498 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,948 |
| Famous Caribbean People | 0 | - | 4.37 | 12,610 |
| Famous People from Africa | 0 | - | 4.45 | 10,946 |
| Flags of North and South America | 0 | - | 4.99 | 372,657 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,646 |
| South American Physical Geography | 0 | - | 4.58 | 18,335 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,022,179 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,107 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,852 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,378 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,318 |
| The Only American Country ... | 0 | - | 4.92 | 121,530 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,012 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,901 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,855 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,023 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,441 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,345 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,417 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,922 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,886 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,884 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 322,011 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,772 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,547 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,857 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,258 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,100 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,410 |
| History of Mexico | 0 | - | 4.58 | 15,304 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,650 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,332 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,571 |
| South America A-Z | 0 | - | 4.13 | 10,899 |
| Central American Countries | 0 | - | 4.98 | 156,363 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,236 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,888 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,529 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,698 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,842 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,174 |
| African-American Historical Figures | 0 | - | 4.18 | 17,207 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,008 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,626 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,955 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 109,909 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,716 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,371 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,812 |
| Pixelated United States Map | 0 | - | 4.87 | 94,190 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,549 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,674 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,772 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,310 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,341 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,871 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,146 |
| U.S. States By Population | 0 | - | 4.92 | 153,482 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,345 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,393 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,457 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,236 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,175 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,560 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,887 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,653 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,142 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,467 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,171 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,457 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,339 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,238 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,239 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,634 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,798 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 275,117 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,057 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,789 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,588 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,272 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,252 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,808 |
| American Foods | 0 | - | 3.66 | 39,372 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,316 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,884 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,963 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,687 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,426 |
| Canada Decoder | 0 | - | 4.12 | 18,714 |
| Countries that Beat Canada | 0 | - | 4.90 | 94,497 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,477 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,927 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,960 |
| Word Chain - Africa | 0 | - | 4.47 | 31,604 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,143 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,942 |
| Belize Country Quiz | 0 | - | 4.85 | 20,959 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,685 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,022 |
| Territories of the United States | 0 | - | 4.79 | 52,365 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,194 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,640 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,385 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,158 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,936 |
| New York City Geography | 0 | - | 4.42 | 33,079 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,569 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,847 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,247 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,914 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,200 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,218 |
| German Groups of Things | 0 | - | 4.46 | 38,468 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,498 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,536 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,241 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,678 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,613 |
| Australian Capitals | 0 | - | 4.92 | 62,714 |
| Word Chain - Australia | 0 | - | 4.38 | 38,134 |
| South American Cities on the Map | 0 | - | 4.53 | 35,407 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,765 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,300 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,489 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,574 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,166 |
| United States Country Quiz | 0 | - | 4.43 | 101,442 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,859 |
| Canada Country Quiz | 0 | - | 4.54 | 132,430 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,145 |
| Canada A-Z | 0 | - | 4.73 | 32,802 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,074 |
| Official European Union Languages | 0 | - | 4.97 | 238,358 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,757 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,928 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,713 |
| Asia Map Quiz | 0 | - | 4.99 | 915,900 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,949 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,619,481 |
| Countries of Africa | 0 | - | 5.00 | 2,534,187 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,752 |
| African East Coast | 0 | - | 4.96 | 95,968 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,794 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,049 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,602 |
| Australia Map Quiz | 0 | - | 4.95 | 344,223 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,138 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,449 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 746,772 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,704 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,084 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,867 |
| New England States | 0 | - | 4.51 | 59,800 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,783 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,001 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,770 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,974 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,906 |
| U.S. States by Borders | 0 | - | 4.61 | 35,292 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,465 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,011 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,201 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,626 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 33,017 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,641 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,159 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,362 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,654 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,835 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,793 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,390 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,494 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,948 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,875 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,318 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,060 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,627 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,832 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,262 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,653 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,088 |
| The Only European Country ... | 0 | - | 4.91 | 216,384 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,992 |
| Word Chain - France | 0 | - | 4.38 | 42,766 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,803 |
| British Groups of Things | 0 | - | 4.25 | 82,859 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,032 |
| Word Chain - Asia | 0 | - | 4.34 | 29,318 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,864 |
