| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,781 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 140,258 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,915 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 109,048 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,033 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,122 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,064 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,106,130 |
| 7 Deadly Sins | 0 | - | 4.88 | 401,657 |
| Fast Math - Addition | 0 | - | 4.87 | 523,645 |
| Disney Animated Characters | 0 | - | 4.88 | 601,995 |
| Random Symbol to Element | 0 | - | 4.88 | 93,309 |
| Flags of North and South America | 0 | - | 4.99 | 374,522 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,146 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,054 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,240 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,301 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,850 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,908 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,435 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,562 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 46,289 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,099,387 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,987 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,865 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 217,494 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,869 |
| The Only American Country ... | 0 | - | 4.92 | 121,842 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,303 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,030 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,243 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,435 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,629 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,631 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,433 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,049 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,979 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,085 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,744 |
| Random Countries by Borders | 0 | - | 4.99 | 82,683 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,490 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,173 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,776 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,686 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,693 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,862 |
| Canada A-Z | 0 | - | 4.73 | 32,893 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,301 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 385,052 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,411 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,592 |
| States of Mexico | 0 | - | 4.96 | 176,871 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,195 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,143 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,220 |
| Word Chain - South America | 0 | - | 4.51 | 23,940 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,266 |
| States of Brazil | 0 | - | 4.97 | 88,705 |
| Central American Countries | 0 | - | 4.98 | 156,820 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,986 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,135 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,528 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,136 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,156 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,902 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,907 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,959 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,954 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,423 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,440 |
| Fast Math - Multiplication | 0 | - | 4.73 | 1,163,589 |
| Fast Math - Double That Number! | 0 | - | 4.77 | 615,436 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,732 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,478 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,512 |
| Pixelated United States Map | 0 | - | 4.88 | 94,494 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,975 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,021 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,148 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,751 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,694 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,375 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,690 |
| U.S. States By Population | 0 | - | 4.92 | 153,766 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,756 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,612 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,719 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,340 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,813 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,311 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,965 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,432 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,678 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,459 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,461 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,627 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,654 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,743 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,665 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 275,972 |
| Word Chain - Africa | 0 | - | 4.47 | 31,656 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,652 |
| Fast Decimal to Binary Conversion | 0 | - | 4.69 | 43,191 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 96,041 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 113,667 |
| Vegetables: No Vowels | 0 | - | 4.74 | 74,146 |
| Famous People from South America | 0 | - | 4.15 | 22,023 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,134 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,963 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,366 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,923 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,867 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,966 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,624 |
| Canada Decoder | 0 | - | 4.07 | 18,738 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,761 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,462 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,756 |
| Africa A-Z | 0 | - | 4.57 | 46,687 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,649 |
| "Of Something" Book Titles | 0 | - | 4.45 | 48,163 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 49,281 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,290 |
| Fast Math - Subtraction Quiz | 0 | - | 4.55 | 67,263 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 135,647 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,952 |
| South America A-Z | 0 | - | 4.13 | 10,925 |
| Belize Country Quiz | 0 | - | 4.85 | 21,019 |
| Famous Caribbean People | 0 | - | 4.37 | 12,637 |
| Territories of the United States | 0 | - | 4.80 | 52,479 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,211 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,747 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,715 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,153 |
| New York City Geography | 0 | - | 4.42 | 33,129 |
| African-American Historical Figures | 0 | - | 4.18 | 17,240 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,720 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,022 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,415 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,817 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,366 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,037 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,363 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,229 |
| European Geography By Letter - R | 0 | - | 4.42 | 94,040 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,304 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,868 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,515 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,908 |
| Famous Germans | 0 | - | 4.50 | 55,544 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,848 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,279 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,852 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,512 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,023 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,483 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,141 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,049 |
| Middle East A-Z | 0 | - | 4.47 | 46,156 |
| Famous People from Africa | 0 | - | 4.45 | 10,969 |
| Books with Names in the Title #2 | 0 | - | 4.42 | 54,714 |
| Religion Analogies | 0 | - | 4.38 | 53,791 |
| Word Scramble - Deities | 0 | - | 4.52 | 10,428 |
| Chess Pieces (With Board and Pictures!) | 0 | - | 4.50 | 78,326 |
| Disney Villains | 0 | - | 4.41 | 165,514 |
| Characters from Books #2 | 0 | - | 4.42 | 79,987 |
| Books by Clue #2 | 0 | - | 4.43 | 26,717 |
| Three Letter Acronyms #1 | 0 | - | 4.14 | 67,671 |
| Four-Letter Acronyms | 0 | - | 4.32 | 113,479 |
| Three-Letter Acronyms #2 | 0 | - | 4.23 | 46,465 |
| Astronomy Decoder | 0 | - | 4.48 | 38,116 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 139,242 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.48 | 71,188 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 144,736 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,840 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,320,207 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,462 |
| Australian Capitals | 0 | - | 4.92 | 62,760 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,607 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,618 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,218 |
| United States Country Quiz | 0 | - | 4.43 | 101,758 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,973 |
| Canada Country Quiz | 0 | - | 4.54 | 132,699 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,379 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,351 |
| Official European Union Languages | 0 | - | 4.97 | 238,973 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,166 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,195 |
| Word Scramble - European Cities | 0 | - | 3.84 | 18,936 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,174 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,852 |
| Asia Map Quiz | 0 | - | 4.99 | 920,027 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,071 |
| A Quiz About Islam | 0 | - | 4.31 | 48,510 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 34,965 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,306 |
| Popular Royal Names | 0 | - | 4.27 | 125,093 |
| First Names of Painters | 0 | - | 4.43 | 59,922 |
