| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,088 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,168 |
| States of Brazil | 0 | - | 4.97 | 88,565 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,684 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,267 |
| Word Chain - South America | 0 | - | 4.51 | 23,930 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,001 |
| States of Mexico | 0 | - | 4.96 | 176,744 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,235 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,823 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,632,533 |
| Famous People from South America | 0 | - | 4.15 | 22,018 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 275,863 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,791 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,429 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,106 |
| Flags of North and South America | 0 | - | 4.99 | 374,251 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,100 |
| South American Physical Geography | 0 | - | 4.58 | 18,367 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,639 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,696 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,607 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,645 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,429 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 722,726 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,390 |
| The Only American Country ... | 0 | - | 4.92 | 121,809 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,503 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,910 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,173 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,394 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,601 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,742 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,606 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,397 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,026 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,289 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,782 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,588 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,376 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,571 |
| History of Mexico | 0 | - | 4.58 | 15,334 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,053 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,389 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,601 |
| South America A-Z | 0 | - | 4.13 | 10,921 |
| Central American Countries | 0 | - | 4.98 | 156,758 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,953 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,035 |
| Famous Caribbean People | 0 | - | 4.37 | 12,633 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,103 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,862 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,806 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,934 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,388 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,886 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,349 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,610 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,333 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,074 |
| Word Chain - Africa | 0 | - | 4.47 | 31,651 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,469 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,421 |
| Pixelated United States Map | 0 | - | 4.88 | 94,458 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,935 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,984 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,128 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,700 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,664 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,324 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,628 |
| U.S. States By Population | 0 | - | 4.92 | 153,732 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,698 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,590 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,695 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,494 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,330 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,788 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,279 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,943 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,407 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,660 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,441 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,713 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,446 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,589 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,537 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,869 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 109,021 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 978,678 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,834 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,585 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,839 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,649 |
| Paraguay Country Quiz | 0 | - | 4.54 | 25,332 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,293 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,851 |
| American Foods | 0 | - | 3.66 | 39,401 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,363 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,921 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,805 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,934 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,605 |
| Canada Decoder | 0 | - | 4.07 | 18,734 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,482 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,728 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,675 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 240,656 |
| NBA Teams - One Minute Sprint | 0 | - | 4.54 | 155,795 |
| Famous People from Africa | 0 | - | 4.45 | 10,964 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,001 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,259 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,951 |
| Belize Country Quiz | 0 | - | 4.85 | 21,012 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,714 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,078 |
| Territories of the United States | 0 | - | 4.80 | 52,465 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,208 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,737 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,678 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,288 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,128 |
| New York City Geography | 0 | - | 4.42 | 33,126 |
| African-American Historical Figures | 0 | - | 4.18 | 17,237 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,707 |
| Europe Map Quiz | 0 | - | 5.00 | 4,770,712 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,352 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,009 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,299 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,291 |
| German Groups of Things | 0 | - | 4.46 | 38,522 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,549 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,600 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,283 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,615 |
| Oceania Map Quiz | 0 | - | 4.98 | 649,642 |
| Australian Capitals | 0 | - | 4.92 | 62,753 |
| Word Chain - Australia | 0 | - | 4.38 | 38,171 |
| South American Cities on the Map | 0 | - | 4.53 | 35,467 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,306 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,589 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,614 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,215 |
| United States Country Quiz | 0 | - | 4.43 | 101,710 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,948 |
| Canada Country Quiz | 0 | - | 4.54 | 132,658 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,351 |
| Canada A-Z | 0 | - | 4.73 | 32,887 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,318 |
| Official European Union Languages | 0 | - | 4.97 | 238,903 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,125 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,006 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,671 |
| Asia Map Quiz | 0 | - | 4.99 | 919,519 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,057 |
| World Capitals - One Minute Sprint | 0 | - | 4.21 | 235,738 |
| Countries of Africa | 0 | - | 5.00 | 2,544,645 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,094 |
| African East Coast | 0 | - | 4.96 | 96,276 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,136 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,075 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,893 |
| Australia Map Quiz | 0 | - | 4.95 | 345,112 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,263 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,518 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,009 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,736 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,813 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 59,955 |
| New England States | 0 | - | 4.51 | 59,834 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,888 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,037 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 82,910 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,109 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 41,001 |
| U.S. States by Borders | 0 | - | 4.61 | 35,374 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,542 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,143 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,270 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,742 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,103 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,749 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,287 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,423 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,748 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,063 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,010 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,470 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,733 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,068 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,969 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,360 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,781 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,738 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,549 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,016 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,748 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,662 |
| The Only European Country ... | 0 | - | 4.91 | 217,368 |
