| Countries of South America with an Empty Map | 0 | - | 4.95 | 105,674 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 55,112 |
| States of Brazil | 0 | - | 4.98 | 90,166 |
| South America Map Quiz | 0 | - | 5.00 | 1,559,245 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,827 |
| Word Chain - South America | 0 | - | 4.51 | 24,031 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,669 |
| States of Mexico | 0 | - | 4.96 | 178,965 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,784 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 176,031 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,662,981 |
| Famous People from South America | 0 | - | 4.15 | 22,152 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 277,063 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,892 |
| United States Map Quiz | 0 | - | 4.98 | 4,174,464 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,415 |
| Flags of North and South America | 0 | - | 4.99 | 378,576 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,948 |
| South American Physical Geography | 0 | - | 4.58 | 18,417 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,802 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,034,134 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,447 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,708 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,544 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 747,093 |
| The Only American Country ... | 0 | - | 4.92 | 122,414 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,965 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,657 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 59,052 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,412 |
| U.S. State Border Crossings | 0 | - | 4.97 | 97,001 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,048 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,118 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,332 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,358 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,248 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,642 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,803 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,992 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 93,014 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,936 |
| History of Mexico | 0 | - | 4.52 | 15,383 |
| Mexico States Map Quiz | 0 | - | 4.85 | 105,856 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,945 |
| South America A-Z | 0 | - | 4.15 | 10,963 |
| Central American Countries | 0 | - | 4.98 | 157,640 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,726 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 151,272 |
| Famous Caribbean People | 0 | - | 4.37 | 12,670 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,639 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,629 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 247,276 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,201 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,865 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,534 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,490 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,421 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,657 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,673 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,684 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 95,808 |
| Pixelated United States Map | 0 | - | 4.89 | 95,051 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,834 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,668 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,257 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,502 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,509 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,601 |
| U.S. States that Start with M | 0 | - | 4.94 | 188,669 |
| U.S. States By Population | 0 | - | 4.92 | 154,317 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,450 |
| U.S. States with Longest Names | 0 | - | 4.85 | 45,021 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,203 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 89,027 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,621 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,260 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,226 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,346 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,804 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,894 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,748 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,683 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,738 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,293 |
| Word Scramble - European Countries | 0 | - | 4.72 | 142,515 |
| Word Scramble - Asian Countries | 0 | - | 4.48 | 109,429 |
| Word Chain - Africa | 0 | - | 4.47 | 31,741 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 984,352 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.91 | 281,449 |
| South American Geography Quiz #2 | 0 | - | 4.40 | 44,420 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,978 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,794 |
| Paraguay Country Quiz | 0 | - | 4.54 | 25,451 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,446 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,965 |
| American Foods | 0 | - | 3.66 | 39,462 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,474 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 21,000 |
| Countries that Beat the United States | 0 | - | 4.93 | 169,024 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,629 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,145 |
| Canada Decoder | 0 | - | 4.07 | 18,787 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,236 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 281,152 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,775 |
| NBA Teams - One Minute Sprint | 0 | - | 4.54 | 156,949 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.96 | 243,685 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,494 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,972 |
| Belize Country Quiz | 0 | - | 4.85 | 21,134 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,814 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,185 |
| Territories of the United States | 0 | - | 4.80 | 52,692 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,244 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,949 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,314 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,619 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 94,528 |
| New York City Geography | 0 | - | 4.43 | 33,210 |
| African-American Historical Figures | 0 | - | 4.18 | 17,314 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,970 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,619 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,597 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,270 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,539 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,494 |
| German Groups of Things | 0 | - | 4.47 | 38,685 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,702 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,787 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,393 |
| Famous People from Africa | 0 | - | 4.45 | 11,017 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,122 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,883 |
| Australian Capitals | 0 | - | 4.92 | 62,887 |
| Word Chain - Australia | 0 | - | 4.38 | 38,271 |
| South American Cities on the Map | 0 | - | 4.52 | 35,592 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,314 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,819 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,703 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,303 |
| United States Country Quiz | 0 | - | 4.43 | 102,401 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,119 |
| Canada Country Quiz | 0 | - | 4.55 | 133,235 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,737 |
| Canada A-Z | 0 | - | 4.73 | 33,006 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,894 |
| Official European Union Languages | 0 | - | 4.97 | 240,482 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,899 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,619 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,805 |
| Asia Map Quiz | 0 | - | 4.99 | 927,314 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,274 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,592 |
| World Capitals - One Minute Sprint | 0 | - | 4.21 | 237,151 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,158 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,666 |
| Australia Map Quiz | 0 | - | 4.95 | 346,655 |
| Pixelated Americas Map | 0 | - | 4.40 | 47,553 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,660 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 750,588 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,786 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,834 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,183 |
| New England States | 0 | - | 4.51 | 59,916 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,134 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,142 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,265 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,358 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,203 |
| U.S. States by Borders | 0 | - | 4.61 | 35,523 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,734 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,420 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,495 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 100,006 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,284 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,860 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,553 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,547 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,916 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,496 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,369 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,632 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,199 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,360 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,460 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,531 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 93,013 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,410 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,736 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,967 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,633 |
| The Only European Country ... | 0 | - | 4.91 | 219,815 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,949 |
| Word Chain - France | 0 | - | 4.38 | 42,978 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,123 |
| British Groups of Things | 0 | - | 4.26 | 83,055 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,136 |
| Word Chain - Asia | 0 | - | 4.34 | 29,408 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,273 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,341 |
