| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,696,133 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,192 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,966 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,340 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 149,232 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,895 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,456 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,968 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,718 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,355 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,674 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,740 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,594 |
| US States Quiz | 0 | - | 5.00 | 16,960,520 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,840 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,815 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,007 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,277 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,852 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,743 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,159 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,951 |
| Random European Capital to Country | 0 | - | 4.98 | 191,840 |
| Random European Country to Capital | 0 | - | 4.93 | 165,667 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,878 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,270 |
| Random African Capital to Country | 0 | - | 4.97 | 101,146 |
| Random African Country to Capital | 0 | - | 4.94 | 71,611 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,766 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,469 |
| Random U.S. City to State | 0 | - | 4.45 | 76,755 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,008 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,115 |
| Countries by Sports in 60 Seconds | 0 | - | 4.92 | 147,131 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,330 |
| US States with an Empty Map | 0 | - | 5.00 | 627,431 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,768 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,101 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,885 |
| North American Sports Cities | 0 | - | 4.83 | 172,945 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,497 |
| Name a City - European Countries | 0 | - | 4.90 | 65,951 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,065 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,124 |
| Olympic Host Countries | 0 | - | 4.98 | 201,577 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,407 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,940 |
| Rivers of the United States | 0 | - | 4.93 | 66,536 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,101 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,678 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,297 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,641 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,132 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,470 |
| Capitals of 2018 FIFA World Cup Teams | 0 | - | 4.67 | 30,988 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,178 |
| Boroughs of New York City | 0 | - | 4.47 | 84,863 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,099 |
| Arms Exports - United States | 0 | - | 4.77 | 62,637 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,601 |
| Countries Closest to Hawaii | 0 | - | 4.55 | 53,876 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,798 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,351 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,175 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,661 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,251 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,048 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,790 |
| ALL California Cities | 0 | - | 4.37 | 43,185 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,484 |
| Europe Capital to Country | 0 | - | 4.99 | 251,581 |
| Asia Capital to Country | 0 | - | 4.96 | 127,203 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,655 |
| European Capitals by Map | 0 | - | 4.99 | 141,426 |
| African Capitals by Map | 0 | - | 4.99 | 141,443 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,893 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,608 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,644 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,987 |
| European Coastal Capitals | 0 | - | 4.95 | 91,097 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,074 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,760 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,305 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,056 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,833 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,364 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,054 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,659 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,030 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,552 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,945 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,551,552 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,015 |
| Category Elimination - U.S. States #2 | 0 | - | 4.83 | 135,265 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,049 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,811 |
| Official Cities in the UK | 0 | - | 4.89 | 285,473 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,862 |
| Every City in Arizona on a Map | 0 | - | 4.51 | 9,465 |
| Every City in Colorado on a Map | 0 | - | 4.49 | 13,415 |
| Every City in Washington State on a Map | 0 | - | 4.54 | 14,100 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,474 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,984 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,407 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,848 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,250 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,466 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,777 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,580 |
| New York City Trivia #1 | 0 | - | 4.08 | 35,767 |
| Countries with the Most Downhill Skiing | 0 | - | 4.89 | 57,617 |
| U.S. Cities With The Most Top Census Appearances | 0 | - | 4.67 | 11,326 |
| Capitals of the Stans | 0 | - | 4.95 | 27,058 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.43 | 91,630 |
| U.S. States by Second Most Populous City | 0 | - | 4.42 | 44,118 |
| Biggest "Saint" Cities - United States | 0 | - | 4.46 | 36,956 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.44 | 40,491 |
| Most Populous U.S. Cities as a Percent of Their State | 0 | - | 4.78 | 55,352 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,707 |
| California Cities starting with SAN or SANTA | 0 | - | 4.33 | 18,569 |
| Word Scramble - U.S. Cities | 0 | - | 4.13 | 19,919 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,405 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,608 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,843 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,324 |
| Cities in the Dallas Metro Area on a Map | 0 | - | 4.63 | 8,688 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,454 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,722 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,270 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,446 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,606 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,656 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,659 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,281 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,091 |
| US State Capitals - One Minute Sprint | 0 | - | 4.05 | 184,589 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,280 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,924 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,293 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,988 |
| Miami City Trivia | 0 | - | 4.60 | 11,257 |
| All About Atlanta | 0 | - | 4.60 | 11,279 |
| Dallas City Trivia | 0 | - | 4.46 | 6,857 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,146 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,751 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,256 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,235 |
| Cities that Beat New York | 0 | - | 4.51 | 28,787 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,904 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,637 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,689,809 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,818 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,249 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,489 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,396,804 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,560 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,398 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,355 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.46 | 73,274 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 127,037 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.41 | 48,988 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.42 | 51,685 |
| Cities on Interstate 90 on a Map | 0 | - | 4.45 | 32,316 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,314 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 120,665 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,734 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,110 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,152 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,278 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,222 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,490 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,251 |
| U.S. State Capitals Closest to Denver | 0 | - | 4.45 | 10,658 |
| Which City in Europe? | 0 | - | 4.83 | 107,760 |
| Neighborhoods of New York City | 0 | - | 4.37 | 30,541 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,745,488 |
| Countries with Most Grand Slam Tennis Titles | 0 | - | 4.42 | 57,971 |
| Countries with Major League Baseball Players | 0 | - | 4.62 | 68,255 |
| Countries with the Fastest Marathoners | 0 | - | 4.51 | 95,853 |
| Countries with the Most Golf Courses | 0 | - | 4.55 | 56,703 |
| Countries Where Baseball is the Most Popular Sport | 0 | - | 4.42 | 55,474 |
| Countries that Export the Most Football Players | 0 | - | 4.43 | 59,045 |
| Countries with the Fastest 100 Meter Sprinters | 0 | - | 4.44 | 86,512 |
| Countries Where Cricket is the Most Popular Sport | 0 | - | 4.78 | 67,310 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,121 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,785 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,311 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,686 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,304 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,117 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,972 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,323 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,879 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 38,526 |
| Tourist Attractions by U.S. State | 0 | - | 4.46 | 62,674 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,895 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,046 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,114 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,346 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,105 |
