| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,796 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 141,396 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,296 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 109,284 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,823 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,296 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,122,000 |
| 7 Deadly Sins | 0 | - | 4.88 | 403,939 |
| Fast Math - Addition | 0 | - | 4.87 | 524,838 |
| Disney Animated Characters | 0 | - | 4.88 | 602,835 |
| Random Symbol to Element | 0 | - | 4.88 | 93,889 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,964 |
| Flags of North and South America | 0 | - | 4.99 | 376,748 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,616 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,389 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,030,991 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,513 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,021 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,460 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,500 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,997 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,102,261 |
| Fruits: No Vowels | 0 | - | 4.81 | 100,438 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 115,348 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 218,839 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,698 |
| Random Geographic Groups of Seven | 0 | - | 4.92 | 46,765 |
| The Only American Country ... | 0 | - | 4.92 | 122,194 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,631 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 904,924 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,799 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,976 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,870 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,921 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,960 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,248 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,774 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,630 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,979 |
| Random Countries by Borders | 0 | - | 4.99 | 83,067 |
| Random Name a Valid Country | 0 | - | 4.99 | 206,576 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,995 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,115 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,063 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 193,672 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,570 |
| Canada A-Z | 0 | - | 4.73 | 32,963 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,095 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 387,692 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,813 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,790 |
| States of Mexico | 0 | - | 4.96 | 178,170 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,576 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,469 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,774 |
| Word Chain - South America | 0 | - | 4.51 | 24,002 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,556 |
| States of Brazil | 0 | - | 4.97 | 89,649 |
| Central American Countries | 0 | - | 4.98 | 157,287 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,572 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,432 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,624 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,449 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,611 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,367 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,498 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,349 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,088 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,705 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,836 |
| Fast Math - Multiplication | 0 | - | 4.73 | 1,166,950 |
| Fast Math - Double That Number! | 0 | - | 4.77 | 616,700 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 139,901 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,599 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 94,942 |
| Pixelated United States Map | 0 | - | 4.88 | 94,788 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,507 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,420 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,050 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,243 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,262 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,310 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,331 |
| U.S. States By Population | 0 | - | 4.92 | 154,111 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,195 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,871 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,052 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,839 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,529 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,071 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,919 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,207 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,661 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,812 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,638 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,608 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,346 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,740 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,381 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,838 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 276,655 |
| Word Chain - Africa | 0 | - | 4.47 | 31,711 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,753 |
| Fast Decimal to Binary Conversion | 0 | - | 4.69 | 43,295 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 97,568 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 114,413 |
| Vegetables: No Vowels | 0 | - | 4.74 | 74,406 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 122,931 |
| Famous People from South America | 0 | - | 4.15 | 22,098 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,152 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,017 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,444 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,980 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,623 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,431 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,012 |
| Canada Decoder | 0 | - | 4.07 | 18,767 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,056 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,977 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,618 |
| Africa A-Z | 0 | - | 4.57 | 46,763 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,307 |
| "Of Something" Book Titles | 0 | - | 4.45 | 48,264 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,353 |
| Fast Math - Subtraction Quiz | 0 | - | 4.55 | 67,610 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 135,977 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,963 |
| South America A-Z | 0 | - | 4.15 | 10,945 |
| Belize Country Quiz | 0 | - | 4.85 | 21,080 |
| Famous Caribbean People | 0 | - | 4.37 | 12,659 |
| Territories of the United States | 0 | - | 4.80 | 52,616 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,233 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,882 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,074 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,376 |
| New York City Geography | 0 | - | 4.43 | 33,184 |
| African-American Historical Figures | 0 | - | 4.18 | 17,284 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,860 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,054 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,380 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,744 |
| European Geography By Letter - D | 0 | - | 4.50 | 114,965 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,951 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,379 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,038 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,520 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,889 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,487 |
| Europe Map Quiz | 0 | - | 5.00 | 4,786,892 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,353 |
| Famous Germans | 0 | - | 4.50 | 55,779 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,339 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,440 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 66,052 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,646 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,180 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,641 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,303 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,284 |
| Middle East A-Z | 0 | - | 4.47 | 46,235 |
| Famous People from Africa | 0 | - | 4.45 | 11,005 |
| Books with Names in the Title #2 | 0 | - | 4.42 | 54,814 |
| Religion Analogies | 0 | - | 4.38 | 53,967 |
| Word Scramble - Deities | 0 | - | 4.52 | 10,510 |
| Chess Pieces (With Board and Pictures!) | 0 | - | 4.50 | 78,665 |
| Disney Villains | 0 | - | 4.41 | 166,036 |
| Characters from Books #2 | 0 | - | 4.42 | 80,132 |
| Books by Clue #2 | 0 | - | 4.43 | 26,770 |
| Three Letter Acronyms #1 | 0 | - | 4.14 | 67,741 |
| Four-Letter Acronyms | 0 | - | 4.32 | 113,929 |
| Three-Letter Acronyms #2 | 0 | - | 4.23 | 46,524 |
| Astronomy Decoder | 0 | - | 4.48 | 38,217 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 139,340 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.48 | 71,446 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 145,350 |
| Category Elimination - Elements | 0 | - | 4.61 | 54,094 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,325,191 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,144 |
| Australian Capitals | 0 | - | 4.92 | 62,827 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,796 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,724 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,671 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,272 |
| United States Country Quiz | 0 | - | 4.43 | 102,163 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,059 |
| Canada Country Quiz | 0 | - | 4.55 | 133,021 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,595 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,692 |
| Official European Union Languages | 0 | - | 4.97 | 239,720 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,604 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,765 |
| Word Scramble - European Cities | 0 | - | 3.84 | 18,969 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,355 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,255 |
| Asia Map Quiz | 0 | - | 4.99 | 924,810 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,193 |
| A Quiz About Islam | 0 | - | 4.32 | 48,608 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 35,165 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,229 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,651,449 |
