| United States Map Quiz | 0 | - | 4.98 | 4,174,290 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,963 |
| North America Map Quiz | 0 | - | 4.98 | 253,001 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,048 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,366 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,633 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,695 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,619 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 59,022 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,352 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,396 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,990 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,033 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,109 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,312 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,353 |
| U.S. History Timeline Quiz | 0 | - | 4.96 | 57,404 |
| Central American Countries | 0 | - | 4.98 | 157,625 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,718 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 151,236 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,199 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,211 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,342 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,796 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,891 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,742 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 68,089 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,658 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 114,213 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 113,612 |
| Countries where the Sea Freezes | 0 | - | 4.93 | 115,608 |
| Largest Countries Without Deserts | 0 | - | 4.89 | 75,856 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 223,286 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,375 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,727 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,231 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,100 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 145,026 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,928 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,970 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,171 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 77,073 |
| Territories of the United States | 0 | - | 4.80 | 52,688 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,944 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,300 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,616 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 94,518 |
| New York City Geography | 0 | - | 4.43 | 33,209 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,959 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,828 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,768 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,925 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 105,665 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,427 |
| History of Mexico | 0 | - | 4.52 | 15,381 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,483 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,784 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,747 |
| 75 Americans Named John | 0 | - | 4.41 | 23,995 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,225 |
| New York True or False? | 0 | - | 4.53 | 34,001 |
| The Most Recent... United States | 0 | - | 4.46 | 18,606 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,999 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,281 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,859 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,548 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,545 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,916 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,485 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,363 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,624 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,188 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,352 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,834 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,458 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,813 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,245 |
| NATO Military Alphabet | 0 | - | 4.98 | 565,472 |
| Weather and Climate Vocabulary | 0 | - | 4.47 | 31,918 |
| Coldest Countries with Exceptions | 0 | - | 4.69 | 39,474 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,879 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,226 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.62 | 45,303 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,305 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,431 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,317 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,215 |
| Which Island in the United States? | 0 | - | 4.29 | 29,850 |
| American Foods | 0 | - | 3.66 | 39,461 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,162 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,354 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,841 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,472 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,999 |
| U.S. Analogies | 0 | - | 4.27 | 19,730 |
| U.S. Groups of Five | 0 | - | 4.21 | 21,756 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,556 |
| Florida True or False? | 0 | - | 4.48 | 28,807 |
| Old West History | 0 | - | 4.34 | 15,311 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,540 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 20,000 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,813 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,829 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,752 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,575 |
| US States with the Most Executions | 0 | - | 4.51 | 26,433 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,192 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,344 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 47,145 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,278 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,844 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,951 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,269 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,972 |
| Canada Decoder | 0 | - | 4.07 | 18,786 |
| Which Canadian Province? | 0 | - | 4.75 | 9,796 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,588 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 43,109 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 281,127 |
| Africa A-Z | 0 | - | 4.57 | 46,808 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,752 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,513 |
| Countries by Military Spending | 0 | - | 4.93 | 179,232 |
| Countries with the Most Tropical Cyclones | 0 | - | 4.61 | 49,920 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,328,290 |
| Classic Novels by Plot #2 | 0 | - | 4.86 | 38,692 |
| 12x12 Multiplication - The Whopper | 0 | - | 4.92 | 121,931 |
| Australian Capitals | 0 | - | 4.92 | 62,884 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,812 |
| Famous Caribbean People | 0 | - | 4.37 | 12,670 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,182 |
| North America Cities by Map | 0 | - | 4.41 | 47,981 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,731 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,484 |
| California Multiple Choice | 0 | - | 4.40 | 28,205 |
| San Francisco Trivia | 0 | - | 4.32 | 15,742 |
| San Francisco A-Z | 0 | - | 4.18 | 9,594 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,218 |
| Boston City Trivia | 0 | - | 4.38 | 24,217 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,748 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,887 |
| Official European Union Languages | 0 | - | 4.97 | 240,455 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,877 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,079 |
| Middle East A-Z | 0 | - | 4.47 | 46,280 |
| Hottest Cities in the U.S. | 0 | - | 4.10 | 62,182 |
| Coldest Cities in the U.S. | 0 | - | 4.35 | 54,523 |
| Most Flood-Prone Countries | 0 | - | 4.49 | 21,589 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,870 |
| Top Five Exporting Partners by Country | 0 | - | 4.87 | 67,523 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,775 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,803 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,863 |
| U.S. History Multiple Choice #2 | 0 | - | 4.33 | 25,145 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 22,310 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,687 |
| U.S. History True or False #1 | 0 | - | 4.36 | 31,383 |
| Top 10 Most Religious U.S. States | 0 | - | 4.32 | 19,457 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,554 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.30 | 31,247 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,650 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,402 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,891 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,602 |
| Canada A-Z | 0 | - | 4.73 | 33,003 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,560 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,699 |
| Asia Map Quiz | 0 | - | 4.99 | 927,186 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,389 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,615 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,644 |
| Australia Map Quiz | 0 | - | 4.95 | 346,611 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,333 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,542 |
| Word Chain - South America | 0 | - | 4.51 | 24,029 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,374 |
| American Inventions #1 | 0 | - | 3.62 | 31,541 |
| American Inventions #2 | 0 | - | 3.93 | 15,906 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,983 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,670 |
| Shrinking U.S. States | 0 | - | 4.38 | 40,448 |
| University of California Campuses | 0 | - | 3.84 | 8,975 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,478 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 93,011 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,362 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,686 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,412 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,598 |
| The Only European Country ... | 0 | - | 4.91 | 219,755 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,918 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,120 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,239 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,388,266 |
| Countries of Africa | 0 | - | 5.00 | 2,566,323 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,315 |
| African East Coast | 0 | - | 4.96 | 96,964 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,863 |
| Top 10 Oldest African Countries | 0 | - | 4.87 | 28,328 |
| Top Arms Exporting Countries | 0 | - | 4.97 | 106,063 |
| Make a Stained Glass Window | 0 | - | 5.00 | 69,244 |
