| US States and State Capitals | 0 | - | 4.99 | 166,110 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,747 |
| U.S. Senators by State | 0 | - | 4.44 | 40,151 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,976 |
| Random U.S. States on a Map | 0 | - | 4.96 | 631,418 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,961 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,353 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,511 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,859 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,771 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,251 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,656 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,612 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,867 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,428 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,386 |
| Which City in California? | 0 | - | 4.56 | 32,197 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,477 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,370 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,257 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 90,023 |
| New York City A-Z | 0 | - | 4.18 | 32,411 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,860 |
| Countries by Sports in 60 Seconds | 0 | - | 4.92 | 148,828 |
| Random U.S. Sports Team to State | 0 | - | 4.33 | 27,937 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,960 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,760 |
| North American Sports Cities | 0 | - | 4.82 | 173,335 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,616 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 40,000 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,729 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,724 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,889 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,416 |
| Name a City - European Countries | 0 | - | 4.89 | 66,436 |
| Europe Capital to Country | 0 | - | 4.99 | 252,694 |
| Asia Capital to Country | 0 | - | 4.96 | 127,736 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,368 |
| European Capitals by Map | 0 | - | 4.99 | 142,662 |
| African Capitals by Map | 0 | - | 4.99 | 142,677 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,158 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,176 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,434 |
| European Coastal Capitals | 0 | - | 4.95 | 91,537 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,287 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,460 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,818 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,268 |
| Which City in New York State? | 0 | - | 4.60 | 16,085 |
| Which City in Texas? | 0 | - | 4.45 | 25,186 |
| Which City in Florida? | 0 | - | 4.61 | 11,045 |
| Olympic Host Countries | 0 | - | 4.98 | 202,326 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 315,545 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,796 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,424 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,394 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 194,083 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,982 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,010 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,530 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,383 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,139 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 109,001 |
| Official Cities in the UK | 0 | - | 4.89 | 287,008 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,675 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 71,161 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 152,013 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 139,118 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,299 |
| Random U.S. City to State | 0 | - | 4.45 | 77,057 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 152,001 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,360 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,492 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,223 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,835 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,791 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,777 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,392 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,752 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,366 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,523 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,698 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,088 |
| Name a Valid European Capital | 0 | - | 4.95 | 154,067 |
| Europe Capitals Mystery Route | 0 | - | 4.97 | 55,882 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,719 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,848 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 43,006 |
| Vietnam War Countries | 0 | - | 4.82 | 94,775 |
| Countries with the Most Downhill Skiing | 0 | - | 4.89 | 57,785 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,485 |
| US States Quiz | 0 | - | 5.00 | 17,029,006 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.91 | 18,505 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,947 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,380 |
| Shrinking U.S. States | 0 | - | 4.38 | 40,444 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,270 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 85,041 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,651 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,498 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,982 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,670 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,949 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,295 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.34 | 247,213 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,639 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,216 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,961 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,179 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,346 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,455 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,592 |
| Random European Capital to Country | 0 | - | 4.98 | 192,403 |
| Random European Country to Capital | 0 | - | 4.93 | 166,112 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,126 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,624 |
| Random African Capital to Country | 0 | - | 4.97 | 101,530 |
| Random African Country to Capital | 0 | - | 4.95 | 71,927 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,678 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,202 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,917 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,824 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.41 | 32,340 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,291 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,559 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,453 |
| Which City in Europe? | 0 | - | 4.83 | 108,029 |
| Boroughs of New York City | 0 | - | 4.47 | 85,448 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,159 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,556 |
| Chicago A-Z | 0 | - | 4.25 | 15,560 |
| Draw All US State Borders | 0 | - | 4.99 | 141,664 |
| Most Common Immigrant Origin by U.S. State | 0 | - | 4.91 | 68,702 |
| US States with an Empty Map | 0 | - | 5.00 | 629,761 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,230 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 511,142 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,472 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,488 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,448 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,564 |
| U.S. States that Start with M | 0 | - | 4.94 | 188,618 |
| U.S. States By Population | 0 | - | 4.92 | 154,280 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,413 |
| U.S. States with Longest Names | 0 | - | 4.85 | 45,007 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,481 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,662 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 89,001 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,617 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,235 |
| Colonies of the Americas in 1775 with a Map | 0 | - | 4.89 | 20,027 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,519 |
| California A-Z | 0 | - | 4.49 | 28,863 |
| Capitals of the Stans | 0 | - | 4.95 | 27,253 |
| European Capitals by Airport Code | 0 | - | 4.93 | 37,025 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.98 | 119,926 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 121,011 |
| U.S. City Nicknames | 0 | - | 4.26 | 103,895 |
| Westernmost Cities in the U.S. | 0 | - | 4.37 | 16,508 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,814 |
| ALL California Cities | 0 | - | 4.37 | 43,289 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,921 |
| Cities in the Dallas Metro Area on a Map | 0 | - | 4.63 | 8,778 |
| Every City in Arizona on a Map | 0 | - | 4.53 | 9,648 |
| Every City in Colorado on a Map | 0 | - | 4.49 | 13,592 |
| Every City in Washington State on a Map | 0 | - | 4.54 | 14,366 |
| Every City in Alabama on a Map | 0 | - | 4.74 | 8,720 |
| Every City in Michigan on a Map | 0 | - | 4.44 | 9,839 |
| Ultimate Rust Belt City Quiz | 0 | - | 4.63 | 14,779 |
| Name a City in Every European Country - No Capitals | 0 | - | 4.64 | 56,066 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,524 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 129,936 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,336 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,896 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,282 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,689 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,461 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,137 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,134 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,771 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,101 |
| U.S. State Capitals in the Answer | 0 | - | 4.77 | 35,860 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,179 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,306 |
| Smaller U.S. Cities You May Know #1 | 0 | - | 4.45 | 19,793 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,914 |
| Which City in Canada? | 0 | - | 4.83 | 57,423 |
| New York City Trivia #1 | 0 | - | 4.08 | 35,828 |
| Miami City Trivia | 0 | - | 4.60 | 11,276 |
| All About Atlanta | 0 | - | 4.60 | 11,305 |
| Las Vegas City Trivia | 0 | - | 4.52 | 13,822 |
| Dallas City Trivia | 0 | - | 4.46 | 6,878 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,996,858 |
| Countries with Most Grand Slam Tennis Titles | 0 | - | 4.42 | 58,152 |
| Countries with Major League Baseball Players | 0 | - | 4.62 | 68,481 |
| Countries with the Fastest Marathoners | 0 | - | 4.51 | 96,090 |
| Countries with the Most Golf Courses | 0 | - | 4.55 | 56,902 |
| Countries Where Baseball is the Most Popular Sport | 0 | - | 4.42 | 55,575 |
| Countries that Export the Most Football Players | 0 | - | 4.43 | 59,760 |
| Countries with the Fastest 100 Meter Sprinters | 0 | - | 4.44 | 86,778 |
| Countries Where Cricket is the Most Popular Sport | 0 | - | 4.77 | 67,525 |
