| Europe Geography Decoder | 0 | - | 4.86 | 69,741 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,719 |
| States of Mexico | 0 | - | 4.95 | 174,629 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,531 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,368 |
| States of Brazil | 0 | - | 4.97 | 87,129 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,739 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,671 |
| Word Chain - South America | 0 | - | 4.51 | 23,829 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,255 |
| Flags of North and South America | 0 | - | 4.99 | 370,063 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,790 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,439 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,017,108 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,795 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,781 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,314 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,199 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 320,676 |
| The Only American Country ... | 0 | - | 4.92 | 121,159 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,760 |
| Famous People from South America | 0 | - | 4.15 | 21,871 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,443 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,715 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,369 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,461 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,197 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,809 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,159 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,439 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,685 |
| Canada Decoder | 0 | - | 4.12 | 18,683 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,319 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,663 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,450 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,125 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,176 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,646 |
| Central American Countries | 0 | - | 4.98 | 155,508 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,812 |
| Famous Caribbean People | 0 | - | 4.37 | 12,592 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,555 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,021 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,223 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,678 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 65,893 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,111 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,731 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,695 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,059 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,281 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,028 |
| History of Mexico | 0 | - | 4.58 | 15,259 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,254 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,515 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,732 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,268 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,993 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,484 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 274,166 |
| Christmas Decoder | 0 | - | 4.42 | 49,421 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,189 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 81,822 |
| South American Physical Geography | 0 | - | 4.58 | 18,308 |
| Pixelated United States Map | 0 | - | 4.89 | 93,806 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,989 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,235 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,335 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,912 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,905 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,337 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,574 |
| U.S. States By Population | 0 | - | 4.92 | 152,778 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,874 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,160 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,194 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,947 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,973 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,251 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,522 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,370 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,853 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,320 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,975 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,193 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,175 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,717 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,357 |
| American Foods | 0 | - | 3.66 | 39,323 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,251 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,842 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,119 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,399 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,195 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,112 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,122 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,136 |
| Famous People from Africa | 0 | - | 4.45 | 10,923 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,901 |
| Word Chain - Africa | 0 | - | 4.47 | 31,542 |
| Four Letter African Geography | 0 | - | 4.67 | 18,569 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,009 |
| Australian Capitals | 0 | - | 4.92 | 62,657 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,920 |
| South America A-Z | 0 | - | 4.13 | 10,873 |
| Belize Country Quiz | 0 | - | 4.85 | 20,876 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,639 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,985 |
| Territories of the United States | 0 | - | 4.79 | 52,250 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,169 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,485 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,965 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,935 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,693 |
| New York City Geography | 0 | - | 4.42 | 33,020 |
| African-American Historical Figures | 0 | - | 4.18 | 17,157 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,367 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,845 |
| Official European Union Languages | 0 | - | 4.97 | 237,635 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,303 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,382 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,126 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,769 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,074 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,116 |
| German Groups of Things | 0 | - | 4.46 | 38,380 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,399 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,424 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,191 |
| Halloween Decoder | 0 | - | 4.21 | 45,570 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,460 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,459 |
| Word Chain - Australia | 0 | - | 4.37 | 38,073 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,534 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,285 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,385 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,516 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,125 |
| United States Country Quiz | 0 | - | 4.43 | 101,025 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,721 |
| Canada Country Quiz | 0 | - | 4.54 | 132,067 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,863 |
| Canada A-Z | 0 | - | 4.73 | 32,717 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,518 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,863 |
| Asia Map Quiz | 0 | - | 4.99 | 910,808 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,786 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,603,584 |
| Countries of Africa | 0 | - | 5.00 | 2,520,963 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,246 |
| African East Coast | 0 | - | 4.96 | 95,508 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,353 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,013 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,190 |
| Australia Map Quiz | 0 | - | 4.94 | 343,247 |
| Pixelated Americas Map | 0 | - | 4.39 | 46,972 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,360 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 745,144 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,678 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,435 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,723 |
| New England States | 0 | - | 4.51 | 59,755 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,628 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,948 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,556 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,815 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,787 |
| U.S. States by Borders | 0 | - | 4.63 | 35,189 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,360 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,809 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,079 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,457 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,893 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,508 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,014 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,281 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,548 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,570 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,568 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,268 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,167 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,777 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.42 | 46,183 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,240 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,053 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,463 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,892 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,184 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,520 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,290 |
| The Only European Country ... | 0 | - | 4.91 | 215,085 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,288 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 27,883 |
| Word Chain - France | 0 | - | 4.38 | 42,672 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,665 |
| British Groups of Things | 0 | - | 4.25 | 82,776 |
| Word Chain - Asia | 0 | - | 4.34 | 29,272 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,176 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,053 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,161 |
