| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,300 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 136,977 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,975 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,142 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,393 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,531 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,679 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,783 |
| Fast Math - Addition | 0 | - | 4.87 | 519,784 |
| Disney Animated Characters | 0 | - | 4.88 | 599,021 |
| Random Symbol to Element | 0 | - | 4.88 | 92,202 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,798 |
| Flags of North and South America | 0 | - | 4.99 | 366,987 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,173 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,039 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,426 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,726 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,788 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,819 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,237 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,836 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,536 |
| Fruits: No Vowels | 0 | - | 4.81 | 98,509 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 113,618 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,737 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,941 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 45,185 |
| The Only American Country ... | 0 | - | 4.92 | 120,735 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,321 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,747 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,934 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,927 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,943 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,851 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,043 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,480 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,317 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,222 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,989 |
| Random Countries by Borders | 0 | - | 4.99 | 81,657 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,181 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,406 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,527 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,762 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,282 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,297 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,226 |
| Canada A-Z | 0 | - | 4.73 | 32,645 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,445 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,068 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,887 |
| States of Mexico | 0 | - | 4.95 | 173,302 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,770 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,137 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,936 |
| Word Chain - South America | 0 | - | 4.51 | 23,762 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,376 |
| States of Brazil | 0 | - | 4.98 | 86,361 |
| Central American Countries | 0 | - | 4.98 | 155,016 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,840 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,090 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,837 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,101 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,641 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,126 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,839 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,522 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,609 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,164 |
| Fast Math - Multiplication | 0 | - | 4.73 | 1,154,473 |
| Fast Math - Double That Number! | 0 | - | 4.78 | 611,087 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,754 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,067 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,089 |
| Pixelated United States Map | 0 | - | 4.89 | 93,458 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,442 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,828 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,704 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,333 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,383 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,633 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,880 |
| U.S. States By Population | 0 | - | 4.92 | 152,335 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,375 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,848 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,887 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,534 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,756 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,869 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,855 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,069 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,470 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,060 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,653 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,336 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,445 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,281 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,110 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 273,093 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,373 |
| Fast Decimal to Binary Conversion | 0 | - | 4.68 | 42,774 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 93,349 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,640 |
| Vegetables: No Vowels | 0 | - | 4.72 | 73,363 |
| Africa A-Z | 0 | - | 4.57 | 46,363 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,495 |
| Famous People from South America | 0 | - | 4.15 | 21,784 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,109 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,789 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,182 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,800 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,539 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,074 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,924 |
| Canada Decoder | 0 | - | 4.12 | 18,645 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,823 |
| Asian Cities A-Z by Clue | 0 | - | 4.53 | 34,129 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,083 |
| "Of Something" Book Titles | 0 | - | 4.45 | 47,932 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 48,888 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,138 |
| Fast Math - Subtraction Quiz | 0 | - | 4.58 | 66,078 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 134,516 |
| Famous People from Africa | 0 | - | 4.45 | 10,855 |
| Word Chain - Africa | 0 | - | 4.47 | 31,437 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,906 |
| South America A-Z | 0 | - | 4.13 | 10,837 |
| Belize Country Quiz | 0 | - | 4.85 | 20,802 |
| Famous Caribbean People | 0 | - | 4.37 | 12,565 |
| Territories of the United States | 0 | - | 4.79 | 52,136 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,156 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,370 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,525 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,430 |
| New York City Geography | 0 | - | 4.42 | 32,922 |
| African-American Historical Figures | 0 | - | 4.18 | 17,124 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,212 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,379 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 110,882 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,820 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,690 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,203 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,867 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,657 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,614 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,012 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,292 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,532 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,581 |
| Famous Germans | 0 | - | 4.50 | 54,604 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,399 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,823 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,385 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,155 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,558 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,066 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,704 |
| Middle East A-Z | 0 | - | 4.47 | 45,780 |
| Books with Names in the Title #2 | 0 | - | 4.42 | 54,456 |
| Religion Analogies | 0 | - | 4.38 | 53,531 |
| Word Scramble - Deities | 0 | - | 4.55 | 10,301 |
| Chess Pieces (With Board and Pictures!) | 0 | - | 4.50 | 77,332 |
| Characters from Books #2 | 0 | - | 4.42 | 79,516 |
| Books by Clue #2 | 0 | - | 4.43 | 26,601 |
| Three Letter Acronyms #1 | 0 | - | 4.14 | 67,455 |
| Four-Letter Acronyms | 0 | - | 4.32 | 112,805 |
| Three-Letter Acronyms #2 | 0 | - | 4.23 | 46,303 |
| Astronomy Decoder | 0 | - | 4.50 | 37,837 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 138,946 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.47 | 70,467 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 143,182 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,224 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,304,561 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,031 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,167 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,321 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,258 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,473 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,074 |
| United States Country Quiz | 0 | - | 4.43 | 100,561 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,596 |
| Canada Country Quiz | 0 | - | 4.54 | 131,692 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,594 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,572 |
| Official European Union Languages | 0 | - | 4.97 | 236,492 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,686 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,128 |
| Word Scramble - European Cities | 0 | - | 3.81 | 18,789 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,209 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,828 |
| Asia Map Quiz | 0 | - | 4.99 | 906,850 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,646 |
| A Quiz About Islam | 0 | - | 4.31 | 48,201 |
| Countries That Don't Recognize Israel | 0 | - | 4.63 | 34,428 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,586,949 |
| Popular Royal Names | 0 | - | 4.27 | 124,464 |
| First Names of Painters | 0 | - | 4.43 | 59,594 |
| First Names of Fashion Designers | 0 | - | 4.12 | 34,073 |
