| US States and State Capitals | 0 | - | 4.99 | 162,081 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,239 |
| Random U.S. States on a Map | 0 | - | 4.96 | 626,134 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,748 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,735 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,017 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,551 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,390 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,688,868 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,963 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,766 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,114 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,120 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,419 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,086 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,973 |
| Which City in California? | 0 | - | 4.56 | 32,021 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,256 |
| Countries by Sports in 60 Seconds | 0 | - | 4.92 | 145,139 |
| U.S. Senators by State | 0 | - | 4.45 | 39,943 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,871 |
| North American Sports Cities | 0 | - | 4.83 | 172,323 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,303 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,816 |
| Name a City - European Countries | 0 | - | 4.90 | 65,331 |
| Africa Capitals Quiz | 0 | - | 4.99 | 737,217 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,427 |
| Which City in New York State? | 0 | - | 4.60 | 15,969 |
| Which City in Texas? | 0 | - | 4.45 | 25,084 |
| Which City in Florida? | 0 | - | 4.61 | 10,987 |
| New York City A-Z | 0 | - | 4.18 | 32,292 |
| Olympic Host Countries | 0 | - | 4.98 | 200,653 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 309,118 |
| Random U.S. Sports Team to State | 0 | - | 4.33 | 27,037 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,632 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,781 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,763 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,240 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,781 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,408 |
| Official Cities in the UK | 0 | - | 4.89 | 283,545 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,314 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,578 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,596 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,549 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,927 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,033 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,913 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,074 |
| Europe Capital to Country | 0 | - | 4.99 | 249,947 |
| Asia Capital to Country | 0 | - | 4.96 | 126,611 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,797 |
| European Capitals by Map | 0 | - | 4.99 | 139,016 |
| African Capitals by Map | 0 | - | 4.99 | 133,691 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,131 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,558 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,425 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,288 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 93,990 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,196 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,021 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,799 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,375 |
| European Coastal Capitals | 0 | - | 4.95 | 90,545 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,563 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,740 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,851 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,810 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,152 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,311 |
| Europe Capitals Mystery Route | 0 | - | 4.97 | 54,945 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,263 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,818 |
| Vietnam War Countries | 0 | - | 4.82 | 94,183 |
| Countries with the Most Downhill Skiing | 0 | - | 4.89 | 57,353 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 46,924 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,067 |
| US States Quiz | 0 | - | 5.00 | 16,864,071 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,938 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.91 | 18,462 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,115 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,205 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,346 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,728 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,740 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,105 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,304 |
| Random U.S. City to State | 0 | - | 4.45 | 76,266 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 147,493 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,459 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,259 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,708 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,060 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,402 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,498 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,632 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,303 |
| Random European Capital to Country | 0 | - | 4.98 | 190,811 |
| Random European Country to Capital | 0 | - | 4.93 | 165,032 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,385 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,718 |
| Random African Capital to Country | 0 | - | 4.97 | 100,669 |
| Random African Country to Capital | 0 | - | 4.94 | 71,177 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,129 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 113,950 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,026 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,765 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,676 |
| Melbourne Suburbs | 0 | - | 4.85 | 53,057 |
| Boroughs of New York City | 0 | - | 4.47 | 84,569 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,013 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,509 |
| Chicago A-Z | 0 | - | 4.25 | 15,506 |
| US States with an Empty Map | 0 | - | 5.00 | 624,213 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,807 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,356 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,373 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,920 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,202 |
| U.S. States By Population | 0 | - | 4.92 | 153,506 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,382 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,418 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,914 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,252 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,190 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,582 |
| Capitals of the Stans | 0 | - | 4.95 | 26,828 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,157 |
| Shrinking U.S. States | 0 | - | 4.38 | 40,335 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,136 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,750 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,471 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,553 |
| ALL California Cities | 0 | - | 4.37 | 43,037 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,413 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,448 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,420 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,987 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,724 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,968 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,652 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,733 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,220 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,066 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,918 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,536 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 33,965 |
| U.S. State Capitals in the Answer | 0 | - | 4.77 | 35,587 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,394 |
| Which City in Europe? | 0 | - | 4.83 | 107,360 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,388 |
| Draw All US State Borders | 0 | - | 4.99 | 137,344 |
| Most Common Immigrant Origin by U.S. State | 0 | - | 4.90 | 66,542 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,280 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,956 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,546 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,774 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,124 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,373 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,950 |
| California A-Z | 0 | - | 4.49 | 28,787 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 120,132 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,667 |
| American TV Show Settings | 0 | - | 4.35 | 30,641 |
| Cities in European History #1 | 0 | - | 4.63 | 133,939 |
| Westernmost Cities in the U.S. | 0 | - | 4.36 | 16,447 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,336 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,737 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,881 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,117 |
| Winter Olympics Hosts | 0 | - | 4.41 | 87,424 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,774 |
| Name a City - U.S. States | 0 | - | 4.41 | 26,698 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,755 |
| Cities in the Dallas Metro Area on a Map | 0 | - | 4.63 | 8,604 |
| Every City in Arizona on a Map | 0 | - | 4.51 | 9,351 |
| Every City in Colorado on a Map | 0 | - | 4.48 | 13,246 |
| Every City in Washington State on a Map | 0 | - | 4.54 | 13,881 |
| Every City in Alabama on a Map | 0 | - | 4.73 | 8,476 |
| Every City in Michigan on a Map | 0 | - | 4.44 | 9,465 |
| Ultimate Rust Belt City Quiz | 0 | - | 4.61 | 14,626 |
| Name a City in Every European Country - No Capitals | 0 | - | 4.63 | 55,390 |
| All 3,142 County Seats of the United States on a Map | 0 | - | 4.30 | 12,128 |
| World Capitals Quiz | 0 | - | 5.00 | 5,070,552 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 129,380 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,143 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,445 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,189 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,621 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,604 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,233 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,062 |
| US State Capitals - One Minute Sprint | 0 | - | 4.06 | 183,797 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,189 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,877 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,259 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,037 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,177 |
| Smaller U.S. Cities You May Know #1 | 0 | - | 4.45 | 19,703 |
| Which City in the United States? | 0 | - | 4.21 | 56,975 |
