| Europe Geography Decoder | 0 | - | 4.86 | 70,152 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,353 |
| States of Mexico | 0 | - | 4.96 | 177,112 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,183 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,286 |
| States of Brazil | 0 | - | 4.97 | 88,845 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,011 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,810 |
| Word Chain - South America | 0 | - | 4.51 | 23,949 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,862 |
| Flags of North and South America | 0 | - | 4.99 | 374,843 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,218 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,462 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,657 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,886 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,210 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,204 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,445 |
| The Only American Country ... | 0 | - | 4.92 | 121,891 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| Famous People from South America | 0 | - | 4.15 | 22,033 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,180 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,312 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,490 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,656 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,914 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,672 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,508 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,079 |
| Canada Decoder | 0 | - | 4.07 | 18,742 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,457 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,441 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,426 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,477 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,619 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,283 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,319 |
| Central American Countries | 0 | - | 4.98 | 156,895 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,030 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,292 |
| Famous Caribbean People | 0 | - | 4.37 | 12,641 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,182 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,969 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,160 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,971 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,470 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,936 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,525 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,687 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,963 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,481 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,223 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,718 |
| History of Mexico | 0 | - | 4.58 | 15,341 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,725 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,948 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,955 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,064 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 109,091 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 276,078 |
| Word Chain - Africa | 0 | - | 4.47 | 31,664 |
| Christmas Decoder | 0 | - | 4.42 | 49,601 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,494 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,621 |
| South American Physical Geography | 0 | - | 4.58 | 18,379 |
| Pixelated United States Map | 0 | - | 4.88 | 94,522 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,054 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,079 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,193 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,804 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,746 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,433 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,759 |
| U.S. States By Population | 0 | - | 4.92 | 153,814 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,809 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,638 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,761 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,583 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,359 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,844 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,342 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,986 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,453 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,699 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,481 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,776 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,484 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,695 |
| South American Geography Quiz #2 | 0 | - | 4.38 | 42,193 |
| American Foods | 0 | - | 3.66 | 39,413 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,374 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,932 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,955 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,011 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,653 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,629 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,808 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,935 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,757 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,288 |
| Australian Capitals | 0 | - | 4.92 | 62,776 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,953 |
| South America A-Z | 0 | - | 4.13 | 10,929 |
| Belize Country Quiz | 0 | - | 4.85 | 21,025 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,723 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,092 |
| Territories of the United States | 0 | - | 4.80 | 52,493 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,212 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,764 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,778 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,327 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,181 |
| New York City Geography | 0 | - | 4.42 | 33,139 |
| African-American Historical Figures | 0 | - | 4.18 | 17,241 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,739 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,402 |
| Official European Union Languages | 0 | - | 4.97 | 239,086 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,237 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,487 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,390 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,047 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,344 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,319 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,581 |
| German Groups of Things | 0 | - | 4.46 | 38,552 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,579 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,637 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,308 |
| Famous People from Africa | 0 | - | 4.45 | 10,972 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,019 |
| Four Letter African Geography | 0 | - | 4.67 | 19,543 |
| Halloween Decoder | 0 | - | 4.21 | 45,659 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,822 |
| Word Chain - Australia | 0 | - | 4.38 | 38,185 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,306 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,625 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,624 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,225 |
| United States Country Quiz | 0 | - | 4.43 | 101,819 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,982 |
| Canada Country Quiz | 0 | - | 4.54 | 132,744 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,412 |
| Canada A-Z | 0 | - | 4.73 | 32,906 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,518 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,080 |
| Asia Map Quiz | 0 | - | 4.99 | 920,665 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,092 |
| Africa Map Quiz | 0 | - | 5.00 | 2,123,097 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,637,211 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,094 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,039 |
| Australia Map Quiz | 0 | - | 4.95 | 345,406 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,301 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,540 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,359 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,741 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,968 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 59,982 |
| New England States | 0 | - | 4.51 | 59,851 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,926 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,053 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 82,955 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,150 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 41,027 |
| U.S. States by Borders | 0 | - | 4.62 | 35,397 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,571 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,181 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,287 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,770 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,117 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,765 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,320 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,441 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,770 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,123 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,063 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,492 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,798 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,113 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,988 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,378 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,013 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,772 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,845 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,310 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,774 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,952 |
| The Only European Country ... | 0 | - | 4.91 | 217,734 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,802 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,341 |
| Word Chain - France | 0 | - | 4.38 | 42,866 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,939 |
| British Groups of Things | 0 | - | 4.25 | 82,931 |
| Word Chain - Asia | 0 | - | 4.34 | 29,362 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,442 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,302 |
| Countries of Africa | 0 | - | 5.00 | 2,547,705 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,227 |
| African East Coast | 0 | - | 4.96 | 96,390 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,242 |
