| US States and State Capitals | 0 | - | 4.99 | 164,849 |
| Random U.S. Sports Team to State | 0 | - | 4.33 | 27,632 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,722 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,380 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,562 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,696,998 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,230 |
| U.S. States Closest to Moscow | 0 | - | 4.50 | 48,222 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,470 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,607 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,832 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,298 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,548 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,531 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,457 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,267 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,948 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,121 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,270 |
| Which City in California? | 0 | - | 4.56 | 32,140 |
| U.S. Senators by State | 0 | - | 4.44 | 40,080 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,110 |
| North American Sports Cities | 0 | - | 4.83 | 173,006 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,517 |
| Name a City - European Countries | 0 | - | 4.90 | 66,016 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,607 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,722 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,680 |
| New York City A-Z | 0 | - | 4.18 | 32,366 |
| Olympic Host Countries | 0 | - | 4.98 | 201,713 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,824 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,218 |
| Countries by Sports in 60 Seconds | 0 | - | 4.92 | 147,400 |
| U.S. States Closest to Tokyo | 0 | - | 4.89 | 61,129 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,578 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,152 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,363 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,542 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,412 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,217 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,671 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,314 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,191 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,883 |
| Europe Capital to Country | 0 | - | 4.99 | 251,759 |
| Asia Capital to Country | 0 | - | 4.96 | 127,270 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,755 |
| European Capitals by Map | 0 | - | 4.99 | 141,690 |
| African Capitals by Map | 0 | - | 4.99 | 141,765 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,260 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,757 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,713 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,043 |
| European Coastal Capitals | 0 | - | 4.95 | 91,169 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,106 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,067 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,472 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,091 |
| Which City in New York State? | 0 | - | 4.60 | 16,043 |
| Which City in Texas? | 0 | - | 4.45 | 25,149 |
| Which City in Florida? | 0 | - | 4.61 | 11,022 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,751 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,019 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,234 |
| Least Irish U.S. States | 0 | - | 4.49 | 18,382 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,110 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,818 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,481 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,738 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,771 |
| Official Cities in the UK | 0 | - | 4.89 | 285,752 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,543 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,786 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,667 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,943 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,153 |
| Random U.S. City to State | 0 | - | 4.45 | 76,798 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,700 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,265 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,918 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,410 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,045 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,509 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,713 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,096 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,458 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,942 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,296 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,496 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,831 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,389 |
| Europe Capitals Mystery Route | 0 | - | 4.97 | 55,555 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,481 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,627 |
| Vietnam War Countries | 0 | - | 4.82 | 94,529 |
| Countries with the Most Downhill Skiing | 0 | - | 4.89 | 57,653 |
| US States Quiz | 0 | - | 5.00 | 16,970,661 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.91 | 18,499 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,372 |
| Capitals of the Stans | 0 | - | 4.95 | 27,085 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,300 |
| Shrinking U.S. States | 0 | - | 4.38 | 40,404 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,916 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,224 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,334 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,949 |
| Biggest Cities in California | 0 | - | 4.35 | 140,286 |
| Biggest Cities in Florida | 0 | - | 4.25 | 72,344 |
| Biggest Cities in New York State | 0 | - | 4.32 | 59,878 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,509 |
| Biggest Cities in Colorado | 0 | - | 4.05 | 32,374 |
| Biggest Cities in Arizona | 0 | - | 4.30 | 31,800 |
| Biggest Cities in Ohio | 0 | - | 4.38 | 48,939 |
| Biggest Cities in Texas | 0 | - | 4.29 | 119,595 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,270 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,909 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,613 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,252 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,120 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,754 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,985 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,180 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,302 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,289 |
| Random European Capital to Country | 0 | - | 4.98 | 191,940 |
| Random European Country to Capital | 0 | - | 4.93 | 165,723 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,917 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,328 |
| Random African Capital to Country | 0 | - | 4.97 | 101,193 |
| Random African Country to Capital | 0 | - | 4.95 | 71,658 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 114,266 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,115 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,843 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,767 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,200 |
| U.S. State Capitals Closest to Denver | 0 | - | 4.45 | 10,662 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,084 |
| Which City in Europe? | 0 | - | 4.83 | 107,796 |
| Boroughs of New York City | 0 | - | 4.47 | 84,892 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,107 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,536 |
| Merged U.S. States | 0 | - | 4.37 | 44,377 |
| Draw All US State Borders | 0 | - | 4.99 | 140,167 |
| Most Common Immigrant Origin by U.S. State | 0 | - | 4.90 | 67,942 |
| US States with an Empty Map | 0 | - | 5.00 | 627,779 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,897 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,376 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 112,119 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,123 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,862 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,137 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,145 |
| U.S. States By Population | 0 | - | 4.92 | 154,027 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,075 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,799 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,159 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,981 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,770 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,482 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,000 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,465 |
| California A-Z | 0 | - | 4.49 | 28,833 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,687 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,720,599 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 115,611 |
| Biggest Cities in New Jersey | 0 | - | 4.14 | 29,230 |
| Biggest Cities in Virginia | 0 | - | 4.22 | 25,277 |
| Biggest Cities in Oregon | 0 | - | 4.11 | 20,874 |
| Biggest Cities in Alaska | 0 | - | 4.29 | 26,000 |
| Biggest Cities in Illinois | 0 | - | 4.36 | 27,050 |
| Biggest Cities in Louisiana | 0 | - | 4.17 | 20,047 |
| Biggest Cities in Massachusetts | 0 | - | 4.39 | 30,708 |
| Biggest Cities in Michigan | 0 | - | 3.98 | 34,263 |
| Biggest Cities in Missouri | 0 | - | 4.25 | 17,477 |
| Biggest Cities in Tennessee | 0 | - | 4.26 | 20,979 |
| Biggest Cities in Indiana | 0 | - | 4.24 | 27,141 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 120,742 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,820 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,688 |
| ALL California Cities | 0 | - | 4.37 | 43,202 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,503 |
| Every City in Arizona on a Map | 0 | - | 4.51 | 9,513 |
| Every City in Colorado on a Map | 0 | - | 4.49 | 13,470 |
| Every City in Washington State on a Map | 0 | - | 4.54 | 14,158 |
| Every City in Alabama on a Map | 0 | - | 4.74 | 8,608 |
| Every City in Michigan on a Map | 0 | - | 4.44 | 9,648 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,488 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,721 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 129,708 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,218 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,845 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,241 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,385 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,069 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,672 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,043 |
| U.S. State Capitals in the Answer | 0 | - | 4.77 | 35,756 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,433 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,684 |
| Which City in Canada? | 0 | - | 4.83 | 57,303 |
