| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,220 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,041 |
| States of Brazil | 0 | - | 4.98 | 86,481 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,714 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,401 |
| States of Mexico | 0 | - | 4.95 | 173,531 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,429 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,264 |
| Famous People from South America | 0 | - | 4.15 | 21,796 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,622 |
| United States Map Quiz | 0 | - | 4.98 | 4,143,056 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,568 |
| Word Chain - Africa | 0 | - | 4.47 | 31,448 |
| Flags of North and South America | 0 | - | 4.99 | 367,844 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,332 |
| South American Physical Geography | 0 | - | 4.58 | 18,275 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,658 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,238 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,300 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,250 |
| Country Chain | 0 | - | 4.96 | 215,834 |
| Capital Cities Chain | 0 | - | 4.84 | 81,966 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,019 |
| The Only American Country ... | 0 | - | 4.92 | 120,828 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,571 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,968 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,058 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,071 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,001 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,423 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,922 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,117 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,536 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,891 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,476 |
| Word Chain - Australia | 0 | - | 4.37 | 38,017 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,755 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,367 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,394 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,166 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,140 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,965 |
| History of Mexico | 0 | - | 4.58 | 15,237 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,885 |
| South American Geography Quiz #2 | 0 | - | 4.62 | 39,205 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,478 |
| South America A-Z | 0 | - | 4.13 | 10,841 |
| Central American Countries | 0 | - | 4.98 | 155,147 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,085 |
| Famous Caribbean People | 0 | - | 4.37 | 12,567 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,161 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,714 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,137 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,553 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,677 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,726 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,407 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,313 |
| Word Chain - France | 0 | - | 4.38 | 42,591 |
| Word Chain - Asia | 0 | - | 4.34 | 29,225 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,809 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,635 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,097 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,139 |
| Pixelated United States Map | 0 | - | 4.89 | 93,552 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,553 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,922 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,818 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,436 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,488 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,752 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,010 |
| U.S. States By Population | 0 | - | 4.92 | 152,436 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,483 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,910 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,939 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,607 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,790 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,938 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,943 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,112 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,535 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,091 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,698 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,876 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,428 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,585 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,037 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,257 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 273,199 |
| Cities Chain #2 | 0 | - | 4.42 | 56,177 |
| Cities Chain #1 | 0 | - | 4.61 | 66,363 |
| Word Chain - Christmas | 0 | - | 4.51 | 50,404 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,652 |
| Guyana Country Quiz | 0 | - | 4.49 | 22,614 |
| Venezuela Country Quiz | 0 | - | 4.50 | 30,417 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,102 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,064 |
| Suriname Country Quiz | 0 | - | 4.60 | 19,685 |
| American Foods | 0 | - | 3.66 | 39,284 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,202 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,810 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,671 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,137 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,975 |
| Canada Decoder | 0 | - | 4.12 | 18,655 |
| Word Chain - Germany | 0 | - | 4.31 | 22,482 |
| Word Chain - Italy | 0 | - | 4.07 | 23,096 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,244 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,902 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,228 |
| Famous People from Africa | 0 | - | 4.45 | 10,864 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,813 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,890 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,909 |
| Belize Country Quiz | 0 | - | 4.85 | 20,818 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,597 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,939 |
| Territories of the United States | 0 | - | 4.79 | 52,168 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,161 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,405 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,630 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,781 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,479 |
| New York City Geography | 0 | - | 4.42 | 32,953 |
| African-American Historical Figures | 0 | - | 4.18 | 17,129 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,258 |
| Europe Map Quiz | 0 | - | 5.00 | 4,733,652 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,013 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,645 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,967 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,008 |
| German Groups of Things | 0 | - | 4.46 | 38,315 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,335 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,346 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,164 |
| Halloween Word Chain | 0 | - | 4.12 | 37,423 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,369 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,855 |
| Australian Capitals | 0 | - | 4.92 | 62,598 |
| South American Cities on the Map | 0 | - | 4.57 | 35,252 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,356 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,276 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,285 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,483 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,084 |
| United States Country Quiz | 0 | - | 4.43 | 100,677 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,621 |
| Canada Country Quiz | 0 | - | 4.55 | 131,789 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,674 |
| Canada A-Z | 0 | - | 4.73 | 32,659 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,629 |
| Official European Union Languages | 0 | - | 4.97 | 237,043 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,762 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,482 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,578 |
| Asia Map Quiz | 0 | - | 4.99 | 907,673 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,674 |
| Word Chain - The Middle East | 0 | - | 4.00 | 14,981 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,590,198 |
| NBA Basketball Word Chain | 0 | - | 4.19 | 37,550 |
| Countries of Africa | 0 | - | 5.00 | 2,510,028 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,877 |
| African East Coast | 0 | - | 4.96 | 95,124 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,007 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,986 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,884 |
| Australia Map Quiz | 0 | - | 4.94 | 342,651 |
| Pixelated Americas Map | 0 | - | 4.40 | 46,844 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,121 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,499 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,633 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,967 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,615 |
| New England States | 0 | - | 4.51 | 59,713 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,511 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,891 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,366 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,675 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,679 |
| U.S. States by Borders | 0 | - | 4.63 | 35,093 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,259 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,164 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,006 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,344 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,804 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,432 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,907 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,225 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,437 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,174 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,395 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,168 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,914 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,610 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,125 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,198 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,289 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,247 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,163 |
