| US States and State Capitals | 0 | - | 4.99 | 165,179 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,608 |
| Random U.S. States on a Map | 0 | - | 4.96 | 629,980 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,862 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,720 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,654 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,553 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,921 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,066 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,923 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,391 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,602 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,295 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,561 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,846 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,799 |
| Which City in California? | 0 | - | 4.56 | 32,145 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,434 |
| Countries by Sports in 60 Seconds | 0 | - | 4.92 | 147,826 |
| U.S. Senators by State | 0 | - | 4.44 | 40,098 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,165 |
| North American Sports Cities | 0 | - | 4.83 | 173,088 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,548 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,914 |
| Name a City - European Countries | 0 | - | 4.90 | 66,110 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,295 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,389 |
| Which City in New York State? | 0 | - | 4.60 | 16,053 |
| Which City in Texas? | 0 | - | 4.45 | 25,153 |
| Which City in Florida? | 0 | - | 4.61 | 11,029 |
| New York City A-Z | 0 | - | 4.18 | 32,372 |
| Olympic Host Countries | 0 | - | 4.98 | 201,883 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 313,520 |
| Random U.S. Sports Team to State | 0 | - | 4.33 | 27,724 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,794 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,308 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,937 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,627 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,823 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,813 |
| Official Cities in the UK | 0 | - | 4.89 | 286,028 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,579 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,683 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,412 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,764 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,369 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,985 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,178 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,295 |
| Europe Capital to Country | 0 | - | 4.99 | 251,949 |
| Asia Capital to Country | 0 | - | 4.96 | 127,333 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,891 |
| European Capitals by Map | 0 | - | 4.99 | 141,948 |
| African Capitals by Map | 0 | - | 4.99 | 142,018 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,736 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,994 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,188 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,862 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,538 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,054 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,807 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,361 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,126 |
| European Coastal Capitals | 0 | - | 4.95 | 91,254 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,157 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,438 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,649 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,136 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,552 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,907 |
| Europe Capitals Mystery Route | 0 | - | 4.97 | 55,622 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,675 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,957 |
| Vietnam War Countries | 0 | - | 4.82 | 94,580 |
| Countries with the Most Downhill Skiing | 0 | - | 4.89 | 57,688 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 52,995 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,113 |
| US States Quiz | 0 | - | 5.00 | 16,986,171 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,292 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.91 | 18,502 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,322 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,020 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,474 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,408 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,106 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,865 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,986 |
| Random U.S. City to State | 0 | - | 4.45 | 76,837 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,978 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,006 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,428 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,087 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,624 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,352 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,796 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,024 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,528 |
| Random European Capital to Country | 0 | - | 4.98 | 192,066 |
| Random European Country to Capital | 0 | - | 4.93 | 165,832 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,953 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,381 |
| Random African Capital to Country | 0 | - | 4.97 | 101,286 |
| Random African Country to Capital | 0 | - | 4.95 | 71,716 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,527 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,581 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,128 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,856 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,780 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,231 |
| Boroughs of New York City | 0 | - | 4.47 | 85,289 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,119 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,540 |
| Chicago A-Z | 0 | - | 4.25 | 15,549 |
| US States with an Empty Map | 0 | - | 5.00 | 628,294 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,006 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,214 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,231 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,283 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,300 |
| U.S. States By Population | 0 | - | 4.92 | 154,092 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,167 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,855 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,518 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,821 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,518 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,060 |
| Capitals of the Stans | 0 | - | 4.95 | 27,111 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,758 |
| Shrinking U.S. States | 0 | - | 4.38 | 40,414 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 117,900 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,928 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,718 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,629 |
| ALL California Cities | 0 | - | 4.37 | 43,226 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,510 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,490 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,779 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,138 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,213 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,341 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,346 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,864 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,409 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,209 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,086 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,695 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,065 |
| U.S. State Capitals in the Answer | 0 | - | 4.77 | 35,779 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,436 |
| Which City in Europe? | 0 | - | 4.83 | 107,851 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,059 |
| Draw All US State Borders | 0 | - | 4.99 | 140,466 |
| Most Common Immigrant Origin by U.S. State | 0 | - | 4.91 | 68,127 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,882 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,998 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,236 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,443 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,115 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,476 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,776 |
| California A-Z | 0 | - | 4.49 | 28,839 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 120,808 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,840 |
| American TV Show Settings | 0 | - | 4.37 | 30,700 |
| Cities in European History #1 | 0 | - | 4.63 | 134,560 |
| Westernmost Cities in the U.S. | 0 | - | 4.37 | 16,494 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,441 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,868 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,947 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,212 |
| Winter Olympics Hosts | 0 | - | 4.41 | 87,720 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,452 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,867 |
| Cities in the Dallas Metro Area on a Map | 0 | - | 4.63 | 8,725 |
| Every City in Arizona on a Map | 0 | - | 4.51 | 9,572 |
| Every City in Colorado on a Map | 0 | - | 4.49 | 13,523 |
| Every City in Washington State on a Map | 0 | - | 4.54 | 14,230 |
| Every City in Alabama on a Map | 0 | - | 4.74 | 8,650 |
| Every City in Michigan on a Map | 0 | - | 4.44 | 9,720 |
| Ultimate Rust Belt City Quiz | 0 | - | 4.63 | 14,734 |
| Name a City in Every European Country - No Capitals | 0 | - | 4.64 | 55,868 |
| All 3,142 County Seats of the United States on a Map | 0 | - | 4.30 | 12,342 |
| World Capitals Quiz | 0 | - | 5.00 | 5,103,315 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 129,752 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,232 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,653 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,252 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,665 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,670 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,297 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,103 |
| US State Capitals - One Minute Sprint | 0 | - | 4.05 | 184,715 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,305 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,934 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,299 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,138 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,280 |
| Smaller U.S. Cities You May Know #1 | 0 | - | 4.45 | 19,771 |
| Which City in the United States? | 0 | - | 4.21 | 57,168 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,732 |
