| Capital Cities by Body of Water | 0 | - | 4.85 | 57,827 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,145 |
| North Sea Countries | 0 | - | 4.92 | 87,645 |
| Black Sea Countries | 0 | - | 4.87 | 60,712 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,540 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,640 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,227 |
| Countries With No Rivers | 0 | - | 4.96 | 77,075 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,345 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,902 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 116,291 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,876 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,945 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,738 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,704 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,012 |
| Countries with Fjords | 0 | - | 4.94 | 101,245 |
| World Capitals Quiz | 0 | - | 5.00 | 5,099,971 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,283 |
| Biggest City by River | 0 | - | 4.38 | 52,941 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,929 |
| Seas on the World Map | 0 | - | 4.96 | 135,862 |
| Seas of the World | 0 | - | 5.00 | 158,159 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,845 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,597,131 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,178 |
| African Great Lakes | 0 | - | 4.82 | 66,861 |
| Seas of Europe | 0 | - | 4.37 | 84,864 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,118 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,202 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,874 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,073 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,055 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,955 |
| Countries by Capital City | 0 | - | 5.00 | 69,207 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,743 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,116 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,396 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,712 |
| Moved Capital Cities | 0 | - | 4.96 | 74,581 |
| Capitals by River | 0 | - | 4.55 | 48,379 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,773 |
| Megadiverse Countries | 0 | - | 4.96 | 135,207 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,575 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,841 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,898 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,605 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,925 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,356 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,348 |
| North American Sports Cities | 0 | - | 4.83 | 173,020 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,522 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,849 |
| Name a City - European Countries | 0 | - | 4.90 | 66,031 |
| Cities by Former Name | 0 | - | 4.83 | 91,961 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,798 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,830 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,649 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,929 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,719 |
| World Capitals by Map | 0 | - | 5.00 | 288,943 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,747 |
| Random Capital to Country | 0 | - | 4.99 | 2,599,486 |
| Random Country to Capital | 0 | - | 4.98 | 926,522 |
| Capitals Starting With H | 0 | - | 4.91 | 93,211 |
| Capitals Starting With K | 0 | - | 4.89 | 84,287 |
| Capitals Starting With M | 0 | - | 4.94 | 108,955 |
| Capitals Starting With P | 0 | - | 4.88 | 78,880 |
| Capitals Starting With R | 0 | - | 4.88 | 82,407 |
| Capitals Starting With S | 0 | - | 4.90 | 86,453 |
| Capitals Starting With T | 0 | - | 4.85 | 76,738 |
| Capitals Starting With W | 0 | - | 4.87 | 91,664 |
| Capitals Starting With A | 0 | - | 4.97 | 128,954 |
| Capitals Starting With B | 0 | - | 4.89 | 119,349 |
| Capitals Starting With D | 0 | - | 4.94 | 97,076 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,178 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,463 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,477 |
| African Physical Geography | 0 | - | 4.51 | 31,797 |
| Asian Physical Geography | 0 | - | 4.61 | 35,606 |
| Rivers of the United States | 0 | - | 4.93 | 66,583 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,695 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,740 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,329 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,786 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,222 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,895 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,558 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,488 |
| Former Capitals | 0 | - | 4.88 | 71,636 |
| Europe Capital to Country | 0 | - | 4.99 | 251,797 |
| Asia Capital to Country | 0 | - | 4.96 | 127,279 |
| Capital Cities Chain | 0 | - | 4.84 | 83,257 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,775 |
| European Capitals by Map | 0 | - | 4.99 | 141,750 |
| African Capitals by Map | 0 | - | 4.99 | 141,818 |
| Coldest World Capitals | 0 | - | 4.95 | 134,106 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,777 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,733 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,060 |
| European Coastal Capitals | 0 | - | 4.95 | 91,191 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,117 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,151 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,498 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,100 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,045 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,451 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,577 |
| World's Longest Rivers | 0 | - | 4.90 | 137,469 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,304 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,671 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,060 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,214 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,721 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,332 |
| Landforms by Country | 0 | - | 4.52 | 52,012 |
| Official Cities in the UK | 0 | - | 4.89 | 285,816 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,195 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,930 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,745 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,765 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,111 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,473 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,956 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,594 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,307 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.87 | 127,178 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,508 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,413 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,840 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,840 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,704 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.87 | 94,494 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,706 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,287 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,635 |
| The Only Country ... | 0 | - | 4.91 | 81,752 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,042 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,485 |
| Geological Extremes | 0 | - | 4.34 | 40,095 |
| European Physical Geography | 0 | - | 4.26 | 33,582 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 88,222 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,787 |
| Capitals of the Stans | 0 | - | 4.95 | 27,088 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,848 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,605 |
| Ancient City to Country | 0 | - | 4.70 | 108,287 |
| City-States | 0 | - | 4.53 | 37,377 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,466 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,798 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,783 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,747 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,743 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,249 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,400 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,200 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,520 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,583 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,277 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 59,057 |
| Top Five Capitals By Category #1 | 0 | - | 4.74 | 81,954 |
| Top Five Capitals By Category #2 | 0 | - | 4.78 | 67,551 |
| Most Expensive Capital Cities | 0 | - | 4.55 | 81,457 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,002 |
| Random World Capitals on a Map | 0 | - | 4.93 | 135,537 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,413 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,206 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,772 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,491 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,127 |
| Boundary Waters | 0 | - | 4.92 | 88,716 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,372 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,582 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,189 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,857 |
| Unusual U.S. City Names | 0 | - | 4.52 | 27,986 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,577 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,601 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 99,418 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.38 | 53,799 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 120,762 |
| Cities by Airports | 0 | - | 4.47 | 103,902 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,190 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 67,345 |
| Cities Chain #2 | 0 | - | 4.42 | 56,496 |
| Cities Chain #1 | 0 | - | 4.61 | 66,788 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,600 |
| World's Biggest Financial Centers | 0 | - | 4.55 | 73,488 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,697,201 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,849 |
| Most-Searched Cities on Wikipedia | 0 | - | 4.42 | 35,332 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,319 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,567 |
| Name Any Valid U.S. City | 0 | - | 4.49 | 41,096 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,243 |
| Cities By Wikipedia Word Clouds A-Z | 0 | - | 4.78 | 33,285 |
| Nearest Capital City #2 | 0 | - | 4.57 | 39,251 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,262 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,126 |
| World Capitals with the Most International Tourists | 0 | - | 4.51 | 53,468 |
