| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,974 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,376 |
| Word Chain - South America | 0 | - | 4.51 | 23,914 |
| United States Map Quiz | 0 | - | 4.98 | 4,160,334 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,645 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,278 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,899 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,024,061 |
| North America Map Quiz | 0 | - | 4.98 | 248,781 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,758 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,903 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,794 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,209 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,784 |
| Famous People from South America | 0 | - | 4.15 | 21,995 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,599 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,533 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 58,039 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,724 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,242 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,520 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,547 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,515 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,179 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,971 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,506 |
| States of Mexico | 0 | - | 4.96 | 176,284 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,003 |
| States of Brazil | 0 | - | 4.97 | 88,257 |
| Central American Countries | 0 | - | 4.98 | 156,542 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,630 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,271 |
| History of Mexico | 0 | - | 4.58 | 15,316 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,846 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,740 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,596 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,117 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,833 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,298 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,596 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,323 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,614 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,340 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 220,282 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,549 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,603 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,312 |
| Australian Capitals | 0 | - | 4.92 | 62,734 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,703 |
| Famous Caribbean People | 0 | - | 4.37 | 12,624 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,051 |
| Territories of the United States | 0 | - | 4.80 | 52,422 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,699 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,530 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,213 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 94,040 |
| New York City Geography | 0 | - | 4.42 | 33,111 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,629 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,197 |
| Official European Union Languages | 0 | - | 4.97 | 238,635 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,943 |
| Europe Map Quiz | 0 | - | 5.00 | 4,765,412 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,973 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,830 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,851 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,552 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,418 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,677 |
| Asia Map Quiz | 0 | - | 4.99 | 917,518 |
| Countries of Africa | 0 | - | 5.00 | 2,539,536 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,907 |
| African East Coast | 0 | - | 4.96 | 96,121 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,980 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,779 |
| Australia Map Quiz | 0 | - | 4.95 | 344,761 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,273 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,196 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,764 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,360 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,587 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,474 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,328 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,726 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,645 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,042 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,689 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 33,064 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,711 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,231 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,401 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,705 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,956 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,907 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,437 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,617 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,006 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,934 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,335 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,428 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,681 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,197 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,632 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,017 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,372 |
| The Only European Country ... | 0 | - | 4.91 | 216,873 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,279 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,861 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,064 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,383,702 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,010 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,884 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,103 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,640 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,312 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,324 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,618 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,167 |
| African Island Countries | 0 | - | 4.96 | 101,705 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,533 |
| Australian States and Territories | 0 | - | 4.96 | 142,065 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,309 |
| Australia True or False | 0 | - | 4.87 | 56,885 |
| Flags of North and South America | 0 | - | 4.99 | 373,486 |
| South American Physical Geography | 0 | - | 4.58 | 18,357 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,715 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,119 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,152 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,172 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,222 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,909 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,401 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,245,401 |
| Celtic Nations | 0 | - | 4.69 | 46,960 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,321 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,741 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,265 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,908 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,219 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,423 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,736 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,163 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,352 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,371 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,267 |
| Slavic Countries | 0 | - | 4.96 | 111,729 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,382 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,081 |
| Counties of England | 0 | - | 4.97 | 797,558 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,496 |
| Flags of Asia Quiz | 0 | - | 4.99 | 614,156 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,286 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,820 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,211 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,048 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,988 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,567 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,502 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,488 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 49,988 |
| Countries of the Middle East | 0 | - | 4.96 | 201,293 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,548 |
| States of India | 0 | - | 4.95 | 193,596 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,674 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,354 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,813 |
| The Only African Country ... | 0 | - | 4.99 | 129,160 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,151 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,916 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 322,443 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,257 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.88 | 57,789 |
| Flags of Oceania | 0 | - | 5.00 | 259,718 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,370 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 145,494 |
| Australia Country Quiz | 0 | - | 4.43 | 69,610 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,607 |
| Regions of New Zealand | 0 | - | 4.85 | 28,539 |
| The Only American Country ... | 0 | - | 4.92 | 121,677 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,172 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,023 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,037 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,133 |
| Which Island in the United States? | 0 | - | 4.29 | 29,535 |
| American Foods | 0 | - | 3.66 | 39,386 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,130 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,264 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,771 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,339 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,908 |
| Old West History | 0 | - | 4.34 | 15,279 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,523 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,940 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,738 |
| US States Quiz | 0 | - | 5.00 | 16,888,465 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,676 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,711 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,592 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,420 |
| US States with the Most Executions | 0 | - | 4.51 | 26,400 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,077 |
