| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,405 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 139,467 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,674 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,838 |
| United States Map Quiz | 0 | - | 4.98 | 4,157,481 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,971 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,100,961 |
| 7 Deadly Sins | 0 | - | 4.88 | 400,132 |
| Fast Math - Addition | 0 | - | 4.87 | 522,728 |
| Disney Animated Characters | 0 | - | 4.88 | 601,365 |
| Random Symbol to Element | 0 | - | 4.88 | 93,036 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,524 |
| Flags of North and South America | 0 | - | 4.99 | 372,907 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,717 |
| South America Map Quiz | 0 | - | 5.00 | 1,549,230 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,022,754 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,179 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,345 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,149 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,383 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,347 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,097,209 |
| Fruits: No Vowels | 0 | - | 4.81 | 99,603 |
| Random Geographic Groups of Five | 0 | - | 4.93 | 114,554 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 216,616 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,512 |
| Random Geographic Groups of Seven | 0 | - | 4.91 | 46,033 |
| The Only American Country ... | 0 | - | 4.92 | 121,572 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,088 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,010 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,908 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,061 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,456 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,441 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,968 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,922 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,416 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,490 |
| Random Countries by Borders | 0 | - | 4.99 | 82,406 |
| Random Name a Valid Country | 0 | - | 4.99 | 204,997 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,769 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,001 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,980 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,134 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 322,149 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,956 |
| Canada A-Z | 0 | - | 4.73 | 32,829 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 383,263 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,143 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,440 |
| States of Mexico | 0 | - | 4.95 | 175,932 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,702 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,894 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,865 |
| Word Chain - South America | 0 | - | 4.51 | 23,897 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,020 |
| States of Brazil | 0 | - | 4.97 | 87,959 |
| Central American Countries | 0 | - | 4.98 | 156,416 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,346 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,459 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,921 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 746,979 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,597 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,441 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,892 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,862 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,200 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,755 |
| Fast Math - Multiplication | 0 | - | 4.73 | 1,161,039 |
| Fast Math - Double That Number! | 0 | - | 4.78 | 614,143 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 137,808 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,393 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,927 |
| Pixelated United States Map | 0 | - | 4.87 | 94,243 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,618 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,731 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,825 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,374 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,384 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,944 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,226 |
| U.S. States By Population | 0 | - | 4.92 | 153,510 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,399 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,421 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,488 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,195 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,585 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,923 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,683 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,162 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,485 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,200 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,369 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,303 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,595 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,404 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,495 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 275,177 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,590 |
| Fast Decimal to Binary Conversion | 0 | - | 4.68 | 43,111 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 95,583 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 113,093 |
| Vegetables: No Vowels | 0 | - | 4.74 | 73,961 |
| Africa A-Z | 0 | - | 4.57 | 46,599 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,146 |
| Famous People from South America | 0 | - | 4.15 | 21,961 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,128 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,909 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,325 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,891 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,376 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,731 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,449 |
| Canada Decoder | 0 | - | 4.12 | 18,718 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,515 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,545 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,077 |
| "Of Something" Book Titles | 0 | - | 4.45 | 48,110 |
| Word Scramble - Random Animals | 0 | - | 4.41 | 49,172 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,255 |
| Fast Math - Subtraction Quiz | 0 | - | 4.55 | 66,970 |
| Random Geography General Knowledge Quiz | 0 | - | 4.46 | 135,388 |
| Famous People from Africa | 0 | - | 4.45 | 10,949 |
| Word Chain - Africa | 0 | - | 4.47 | 31,611 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,944 |
| South America A-Z | 0 | - | 4.13 | 10,903 |
| Belize Country Quiz | 0 | - | 4.85 | 20,966 |
| Famous Caribbean People | 0 | - | 4.37 | 12,616 |
| Territories of the United States | 0 | - | 4.79 | 52,385 |
| Fictional Characters from the Midwest by Picture | 0 | - | 4.04 | 19,197 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,657 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,426 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,965 |
| New York City Geography | 0 | - | 4.42 | 33,092 |
| African-American Historical Figures | 0 | - | 4.18 | 17,216 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,584 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,096 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 117,822 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,822 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,495 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,429 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,547 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,483 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,791 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,655 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,968 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,384 |
| Europe Map Quiz | 0 | - | 5.00 | 4,761,751 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,559 |
| Famous Germans | 0 | - | 4.50 | 55,277 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,458 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,124 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,691 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,402 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,890 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,357 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,018 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,855 |
| Middle East A-Z | 0 | - | 4.47 | 46,012 |
| Books with Names in the Title #2 | 0 | - | 4.42 | 54,649 |
| Religion Analogies | 0 | - | 4.38 | 53,729 |
| Word Scramble - Deities | 0 | - | 4.52 | 10,399 |
| Chess Pieces (With Board and Pictures!) | 0 | - | 4.50 | 78,101 |
| Characters from Books #2 | 0 | - | 4.42 | 79,889 |
| Books by Clue #2 | 0 | - | 4.43 | 26,684 |
| Three Letter Acronyms #1 | 0 | - | 4.14 | 67,602 |
| Four-Letter Acronyms | 0 | - | 4.32 | 113,286 |
| Three-Letter Acronyms #2 | 0 | - | 4.23 | 46,405 |
| Astronomy Decoder | 0 | - | 4.49 | 38,051 |
| U.S. Chain Restaurant Menu | 0 | - | 4.08 | 139,175 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.48 | 70,998 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 144,384 |
| Category Elimination - Elements | 0 | - | 4.61 | 53,672 |
| 100 Most Common English Words | 0 | - | 4.89 | 1,316,249 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,397 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,984 |
| Australian Capitals | 0 | - | 4.92 | 62,718 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,782 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,787 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,502 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,578 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,170 |
| United States Country Quiz | 0 | - | 4.43 | 101,474 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,867 |
| Canada Country Quiz | 0 | - | 4.54 | 132,460 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,179 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,103 |
| Official European Union Languages | 0 | - | 4.97 | 238,453 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,814 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,091 |
| Word Scramble - European Cities | 0 | - | 3.84 | 18,913 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,021 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,074 |
| Asia Map Quiz | 0 | - | 4.99 | 916,398 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,962 |
| A Quiz About Islam | 0 | - | 4.31 | 48,430 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 34,828 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,621,293 |
| Popular Royal Names | 0 | - | 4.27 | 124,929 |
| First Names of Painters | 0 | - | 4.43 | 59,847 |
