| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,547 |
| World Capitals Quiz | 0 | - | 5.00 | 5,033,249 |
| Countries with Glaciers | 0 | - | 4.97 | 104,684 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,655 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,251 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,696 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,833 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,998 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,678 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,631 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,683 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,503 |
| Countries by Capital City | 0 | - | 5.00 | 66,719 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,366 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,935 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,434 |
| Moved Capital Cities | 0 | - | 4.96 | 73,613 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,548 |
| Countries that Desalinate the Most Water | 0 | - | 4.77 | 41,377 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,143 |
| North American Sports Cities | 0 | - | 4.83 | 170,953 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,928 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,766 |
| Cities by Former Name | 0 | - | 4.84 | 91,004 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,702 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,258 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,997 |
| World Capitals by Map | 0 | - | 5.00 | 283,321 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,699 |
| Capitals Starting With H | 0 | - | 4.90 | 91,167 |
| Capitals Starting With K | 0 | - | 4.85 | 75,716 |
| Capitals Starting With L | 0 | - | 4.81 | 86,873 |
| Capitals Starting With M | 0 | - | 4.93 | 106,130 |
| Capitals Starting With P | 0 | - | 4.88 | 77,229 |
| Capitals Starting With R | 0 | - | 4.87 | 81,005 |
| Capitals Starting With S | 0 | - | 4.89 | 84,841 |
| Capitals Starting With T | 0 | - | 4.84 | 75,330 |
| Capitals Starting With W | 0 | - | 4.89 | 90,640 |
| Capitals Starting With A | 0 | - | 4.97 | 126,588 |
| Capitals Starting With B | 0 | - | 4.89 | 117,334 |
| Capitals Starting With D | 0 | - | 4.93 | 95,422 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,529 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,204 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,574 |
| Random Country to Capital | 0 | - | 4.98 | 911,968 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,148 |
| Southernmost Major Cities | 0 | - | 4.44 | 51,120 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,595 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,031 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,265 |
| Least-Forested Countries | 0 | - | 4.53 | 64,914 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,725 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,468 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,103 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,070 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,327 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,394 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,238 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,203 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,894 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,732 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,367 |
| Former Capitals | 0 | - | 4.88 | 71,153 |
| Europe Capital to Country | 0 | - | 4.99 | 248,015 |
| Asia Capital to Country | 0 | - | 4.96 | 125,793 |
| Capital Cities Chain | 0 | - | 4.84 | 81,951 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,532 |
| European Capitals by Map | 0 | - | 4.99 | 136,417 |
| African Capitals by Map | 0 | - | 4.99 | 132,239 |
| Coldest World Capitals | 0 | - | 4.95 | 133,065 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,222 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,252 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,668 |
| European Coastal Capitals | 0 | - | 4.95 | 89,811 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,207 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,928 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,935 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,439 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,824 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,024 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,445 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.61 | 37,684 |
| Boundary Waters | 0 | - | 4.92 | 88,062 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,826 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,321 |
| Unusual U.S. City Names | 0 | - | 4.51 | 27,584 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,417 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,340 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.35 | 44,546 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,035 |
| Ancient City to Country | 0 | - | 4.70 | 107,633 |
| Official Cities in the UK | 0 | - | 4.89 | 280,710 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,094 |
| City-States | 0 | - | 4.53 | 37,110 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,553 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,801 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,490 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,122 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,053 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,974 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,468 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,121 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,158 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 58,693 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,458 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,985 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,693 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,446 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,167 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,209 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,305 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.89 | 125,440 |
| Top Five Capitals By Category #1 | 0 | - | 4.73 | 78,433 |
| Top Five Capitals By Category #2 | 0 | - | 4.64 | 57,695 |
| Most Expensive Capital Cities | 0 | - | 4.55 | 80,608 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,741 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,734 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,516 |
| Flags to Capitals #1 | 0 | - | 4.96 | 57,913 |
| Flags to Capitals #2 | 0 | - | 4.95 | 43,949 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.86 | 93,495 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,330 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,039 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,802 |
| The Only Country ... | 0 | - | 4.91 | 79,939 |
| Countries by Carbon Dioxide Emissions per Capita | 0 | - | 4.03 | 49,110 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,941,094 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 98,990 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 119,282 |
| Cities by Airports | 0 | - | 4.49 | 88,184 |
| Largest World Cities With Five Letters | 0 | - | 4.52 | 66,440 |
| Cities Chain #2 | 0 | - | 4.42 | 56,173 |
| Cities Chain #1 | 0 | - | 4.61 | 66,355 |
| World's Biggest Financial Centers | 0 | - | 4.51 | 52,648 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,263 |
| Most-Searched Cities on Wikipedia | 0 | - | 4.41 | 35,020 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 145,050 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,443 |
| Name Any Valid U.S. City | 0 | - | 4.51 | 40,162 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,023 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,799 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,427 |
| Nearest Capital City #2 | 0 | - | 4.56 | 39,021 |
| World Capitals with the Most International Tourists | 0 | - | 4.49 | 53,227 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,570 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,326 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,969 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,691 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,694 |
| Capitals Starting With N | 0 | - | 4.80 | 50,363 |
| Capitals Starting With V | 0 | - | 4.79 | 37,608 |
| Capitals Starting With C | 0 | - | 4.74 | 96,586 |
| Landlocked Countries | 0 | - | 4.99 | 413,847 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,316 |
| Countries with the Most Malaria Deaths | 0 | - | 4.47 | 44,881 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,182 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,032 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,684 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,074 |
| Cities with the Same Name | 0 | - | 3.94 | 36,632 |
| U.S. Cities with the Highest Elevation | 0 | - | 4.26 | 27,767 |
| Musical Acts by City #1 | 0 | - | 4.05 | 31,353 |
| Musical Acts by City #2 | 0 | - | 4.02 | 10,939 |
| Nearest Major City #1 | 0 | - | 4.49 | 23,541 |
| 25 Most Photographed Cities in Europe | 0 | - | 4.36 | 100,144 |
| Closest City Pairs #2 | 0 | - | 4.54 | 29,362 |
| Closest City Pairs #1 | 0 | - | 4.46 | 24,723 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,018 |
| Cities by Initials | 0 | - | 4.12 | 24,496 |
| City to Country - Tile Select #2 | 0 | - | 4.54 | 20,827 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,140 |
| National Subdivisions by Capital | 0 | - | 4.36 | 98,975 |
| Capital Cities with the Same Name as Their Country | 0 | - | 4.31 | 75,008 |
| Capitals by First and Last Letter | 0 | - | 4.40 | 66,435 |
| World Capitals Ending with O | 0 | - | 4.80 | 17,436 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,508 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,213 |
| Capital Closest to the Equator | 0 | - | 4.58 | 15,376 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,112 |
| Double Trouble Capital Cities | 0 | - | 4.53 | 22,633 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 74,927 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,034 |
| Random European Capital to Country | 0 | - | 4.98 | 189,292 |
| Random European Country to Capital | 0 | - | 4.92 | 147,513 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,430 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,472 |
| Random African Capital to Country | 0 | - | 4.97 | 99,751 |
| Random African Country to Capital | 0 | - | 4.94 | 70,249 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,810 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,685 |
| Himalayan Countries | 0 | - | 4.95 | 135,446 |
| Andean Countries | 0 | - | 4.94 | 82,860 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,255 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,259 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,942 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,634 |
| Danube Countries | 0 | - | 4.97 | 71,098 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,786 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,556 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,530 |
