| North American Sports Cities | 0 | - | 4.82 | 173,196 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,577 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,580 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,925 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,507 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,588 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,380 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,427 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,016 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,259 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,298 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,221 |
| Countries by Capital City | 0 | - | 5.00 | 69,480 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,913 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,273 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,064 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,864 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,836 |
| Moved Capital Cities | 0 | - | 4.96 | 74,683 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,831 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 120,884 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,487 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,496 |
| Winter Olympics Hosts | 0 | - | 4.41 | 87,758 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,983 |
| Name a City - European Countries | 0 | - | 4.89 | 66,241 |
| Cities by Former Name | 0 | - | 4.83 | 92,100 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,259 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,207 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,946 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,004 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,888 |
| World Capitals by Map | 0 | - | 5.00 | 289,612 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,855 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,438 |
| Random Country to Capital | 0 | - | 4.98 | 928,932 |
| Capitals Starting With H | 0 | - | 4.91 | 93,376 |
| Capitals Starting With K | 0 | - | 4.88 | 84,446 |
| Capitals Starting With M | 0 | - | 4.94 | 109,248 |
| Capitals Starting With P | 0 | - | 4.88 | 79,046 |
| Capitals Starting With R | 0 | - | 4.88 | 82,540 |
| Capitals Starting With S | 0 | - | 4.90 | 86,614 |
| Capitals Starting With T | 0 | - | 4.86 | 76,874 |
| Capitals Starting With W | 0 | - | 4.87 | 91,761 |
| Capitals Starting With A | 0 | - | 4.97 | 129,168 |
| Capitals Starting With B | 0 | - | 4.89 | 119,563 |
| Capitals Starting With D | 0 | - | 4.94 | 97,254 |
| Countries With the Most NBA Players | 0 | - | 4.47 | 118,907 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,743 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,798 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,550 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,971 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,145 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,723 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,616 |
| Former Capitals | 0 | - | 4.88 | 71,695 |
| Europe Capital to Country | 0 | - | 4.99 | 252,248 |
| Asia Capital to Country | 0 | - | 4.96 | 127,607 |
| Capital Cities Chain | 0 | - | 4.84 | 83,431 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,073 |
| European Capitals by Map | 0 | - | 4.99 | 142,256 |
| African Capitals by Map | 0 | - | 4.99 | 142,323 |
| Coldest World Capitals | 0 | - | 4.95 | 134,186 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,989 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,956 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,241 |
| European Coastal Capitals | 0 | - | 4.95 | 91,369 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,220 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,895 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,910 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,196 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,192 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,621 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,324 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,755 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,118 |
| American Cities by Stadium | 0 | - | 4.02 | 36,595 |
| City by Football Clubs | 0 | - | 4.38 | 138,435 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,231 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,873 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,176 |
| Official Cities in the UK | 0 | - | 4.89 | 286,486 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,627 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,396 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,156 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,872 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,372 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,288 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,632 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,189 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,720 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,430 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,872 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.88 | 127,361 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,497 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,610 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,489 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,992 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,951 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,805 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.87 | 94,610 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,973 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,313 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,743 |
| The Only Country ... | 0 | - | 4.91 | 81,939 |
| Capitals of the Stans | 0 | - | 4.95 | 27,179 |
| FIFA World Cup Final Host Cities | 0 | - | 4.67 | 29,444 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,738 |
| Ancient City to Country | 0 | - | 4.72 | 108,370 |
| City-States | 0 | - | 4.53 | 37,417 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,515 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,994 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,828 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,441 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,092 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,284 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,162 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,282 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,144 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,716 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,596 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,284 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 59,094 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,042 |
| Top Five Capitals By Category #1 | 0 | - | 4.74 | 82,138 |
| Top Five Capitals By Category #2 | 0 | - | 4.78 | 67,712 |
| Most Expensive Capital Cities | 0 | - | 4.55 | 81,571 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,317 |
| Random World Capitals on a Map | 0 | - | 4.93 | 135,891 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,701 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,428 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,926 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,033 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,126 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,810 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,385 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,458 |
| Boundary Waters | 0 | - | 4.92 | 88,794 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,428 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,748 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,402 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,001 |
| Unusual U.S. City Names | 0 | - | 4.52 | 28,026 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,590 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,628 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 99,481 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.38 | 54,150 |
| Cities by Airports | 0 | - | 4.48 | 104,084 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,204 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 67,440 |
| Cities Chain #2 | 0 | - | 4.42 | 56,531 |
| Cities Chain #1 | 0 | - | 4.61 | 66,835 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,605 |
| World's Biggest Financial Centers | 0 | - | 4.55 | 73,845 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,699,420 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,070 |
| Most-Searched Cities on Wikipedia | 0 | - | 4.42 | 35,370 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,737 |
| Name Any Valid U.S. City | 0 | - | 4.49 | 41,173 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,271 |
| Cities By Wikipedia Word Clouds A-Z | 0 | - | 4.78 | 33,326 |
| Nearest Capital City #2 | 0 | - | 4.57 | 39,283 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,494 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,179 |
| World Capitals with the Most International Tourists | 0 | - | 4.51 | 53,491 |
| Capitals of 2018 FIFA World Cup Teams | 0 | - | 4.67 | 31,043 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,114 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,284 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,395 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,450 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 76,118 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,110 |
| Random European Capital to Country | 0 | - | 4.98 | 192,221 |
| Random European Country to Capital | 0 | - | 4.93 | 165,970 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,032 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,486 |
| Random African Capital to Country | 0 | - | 4.97 | 101,392 |
| Random African Country to Capital | 0 | - | 4.95 | 71,781 |
| One Capital by Letter by Continent | 0 | - | 4.99 | 17,591 |
| Capitals Starting With L | 0 | - | 4.80 | 95,926 |
| Capitals Starting With N | 0 | - | 4.80 | 51,933 |
| Capitals Starting With V | 0 | - | 4.80 | 38,676 |
| Capitals Starting With C | 0 | - | 4.78 | 99,063 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,752 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,347 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,405 |
| Which City in Europe? | 0 | - | 4.83 | 107,919 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,912,578 |
| Hindu Countries | 0 | - | 4.87 | 50,605 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,143 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,639 |
| Country Picture Puzzle Game #1 | 0 | - | 4.86 | 86,901 |
| Countries in a JetPunk Fish of the World Map | 0 | - | 4.99 | 60,698 |
| Countries in a Blue JetPunk Fish of the World Map | 0 | - | 4.92 | 72,387 |
| NBA Player to Country | 0 | - | 4.29 | 84,257 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,906 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,064 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,302 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,346 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 62,049 |
