| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,966 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,989 |
| States of Brazil | 0 | - | 4.97 | 88,232 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,273 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,592 |
| States of Mexico | 0 | - | 4.96 | 176,238 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,118 |
| Word Chain - South America | 0 | - | 4.51 | 23,912 |
| United States Map Quiz | 0 | - | 4.98 | 4,159,769 |
| Flags of North and South America | 0 | - | 4.99 | 373,425 |
| South American Physical Geography | 0 | - | 4.58 | 18,356 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,739 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,914 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,395 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,823 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,707 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,875 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,703 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,515 |
| The Only American Country ... | 0 | - | 4.92 | 121,664 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,161 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,784 |
| Famous People from South America | 0 | - | 4.15 | 21,985 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,596 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 58,026 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,230 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,513 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,531 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,503 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,152 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,962 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,189 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,428 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,105 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,240 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,500 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,762 |
| History of Mexico | 0 | - | 4.58 | 15,313 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,804 |
| South America A-Z | 0 | - | 4.13 | 10,910 |
| Central American Countries | 0 | - | 4.98 | 156,526 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,590 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,978 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,705 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,579 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,242 |
| Pixelated United States Map | 0 | - | 4.87 | 94,321 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,747 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,821 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,897 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,261 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,958 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,495 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,500 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,084 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,377 |
| U.S. States By Population | 0 | - | 4.92 | 153,604 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,515 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,472 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,575 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,371 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,239 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,669 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,090 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,812 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,276 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,579 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,302 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,595 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,406 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,418 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,538 |
| Washington... or Washington D.C.? | 0 | - | 4.33 | 26,529 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,809 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,510 |
| Countries that Beat Canada | 0 | - | 4.91 | 97,902 |
| Canada True or False? | 0 | - | 4.57 | 54,938 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,780 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,814 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,612 |
| Paraguay Country Quiz | 0 | - | 4.54 | 25,308 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,272 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,824 |
| Belize Country Quiz | 0 | - | 4.85 | 20,985 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,222 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,368 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,737 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,302 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,774 |
| Iceland... or Ireland? | 0 | - | 4.74 | 57,055 |
| WWI... or WWII? | 0 | - | 4.85 | 142,339 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,316 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,947 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,703 |
| Famous Caribbean People | 0 | - | 4.37 | 12,624 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,047 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,837 |
| Territories of the United States | 0 | - | 4.80 | 52,419 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,696 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,516 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,209 |
| California Multiple Choice | 0 | - | 4.40 | 28,107 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,183 |
| New York City Geography | 0 | - | 4.42 | 33,108 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,622 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,951 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,745 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,287 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,822 |
| Which African Country? | 0 | - | 4.58 | 36,380 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,753 |
| Australian Capitals | 0 | - | 4.92 | 62,731 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,190 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,358 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,585 |
| South American Cities on the Map | 0 | - | 4.53 | 35,433 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,843 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,303 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,469 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,540 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,590 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,186 |
| United States Country Quiz | 0 | - | 4.43 | 101,569 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,904 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,722 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,570 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,175 |
| 75 Americans Named John | 0 | - | 4.41 | 23,908 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,775 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,904 |
| North Carolina... or South Carolina? | 0 | - | 4.21 | 10,528 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,076 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,246 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,595 |
| New England States | 0 | - | 4.51 | 59,817 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,833 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,015 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,842 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,026 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,946 |
| U.S. States by Borders | 0 | - | 4.61 | 35,334 |
| Save Americans by Guessing U.S. States | 0 | - | 4.63 | 185,967 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,495 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,060 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,235 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,686 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 33,058 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,700 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,226 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,398 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,704 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,949 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,892 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,434 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,613 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,000 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,931 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,423 |
| Canada Country Quiz | 0 | - | 4.55 | 132,524 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,240 |
| Canada A-Z | 0 | - | 4.73 | 32,845 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,334 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,563 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,183 |
| Official European Union Languages | 0 | - | 4.97 | 238,609 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,928 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,381 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,402 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,581 |
| Asia Map Quiz | 0 | - | 4.99 | 917,395 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,997 |
| Which Asian Country? | 0 | - | 4.64 | 57,604 |
| China Multiple Choice | 0 | - | 4.50 | 37,298 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,805 |
| Countries of Africa | 0 | - | 5.00 | 2,538,946 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,003 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,803 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,900 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,086 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,631 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,304 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,310 |
| African East Coast | 0 | - | 4.96 | 96,116 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,604 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,964 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,143 |
| African Island Countries | 0 | - | 4.96 | 101,692 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,510 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,381 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,322 |
| South Africa Multiple Choice | 0 | - | 4.55 | 27,482 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,766 |
| Australian States and Territories | 0 | - | 4.96 | 142,050 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,301 |
| Australia Map Quiz | 0 | - | 4.95 | 344,734 |
| Australia True or False | 0 | - | 4.87 | 56,883 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,637 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,272 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,712 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,729 |
