| Five Most Inland Capital Cities by Continent | 0 | - | 4.90 | 12,046 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,271 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,040 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,701 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,680 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,870 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,437 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,538 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,829 |
| Random European Capital to Country | 0 | - | 4.98 | 190,608 |
| Random European Country to Capital | 0 | - | 4.93 | 164,505 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,188 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,581 |
| Random African Capital to Country | 0 | - | 4.97 | 100,476 |
| Random African Country to Capital | 0 | - | 4.94 | 71,076 |
| World Capitals Quiz | 0 | - | 5.00 | 5,062,125 |
| Europe Capital to Country | 0 | - | 4.99 | 249,521 |
| Asia Capital to Country | 0 | - | 4.96 | 126,448 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,553 |
| European Capitals by Map | 0 | - | 4.99 | 138,509 |
| African Capitals by Map | 0 | - | 4.99 | 133,313 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,054 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,859 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,214 |
| European Coastal Capitals | 0 | - | 4.95 | 90,361 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,491 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,084 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,516 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,734 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,605 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,342 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,021 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,231 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,873 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,961 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,680 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,067 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,050 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,073 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,158 |
| Monarchies of Europe | 0 | - | 4.90 | 97,934 |
| Monarchies of Asia | 0 | - | 4.97 | 70,966 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,769 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,721 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,349 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,967 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,114 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,620 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,885 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,588 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,036 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,882 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,302 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 129,927 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,893 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,857 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,768 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,810 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,890 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,613 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,924 |
| Countries with Megacities | 0 | - | 4.99 | 257,543 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,785 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,931 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,075 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,936 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,823 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,911 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,221 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,249 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,927 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,572 |
| Countries by Capital City | 0 | - | 5.00 | 67,884 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,950 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,444 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,566 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,936 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,288 |
| Moved Capital Cities | 0 | - | 4.96 | 74,033 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,893 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,195 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,379 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,025 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,381 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,217 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,670 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,524 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,354 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,651 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,246 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,341 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,900 |
| North American Sports Cities | 0 | - | 4.83 | 171,736 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,232 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,736 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,647 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,234 |
| Cities by Former Name | 0 | - | 4.83 | 91,413 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,314 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,564 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,955 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,877 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,860 |
| World Capitals by Map | 0 | - | 5.00 | 285,537 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,141 |
| Random Capital to Country | 0 | - | 4.99 | 2,587,751 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,640 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,897 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,462 |
| Random Country to Capital | 0 | - | 4.98 | 918,036 |
| Capitals Starting With H | 0 | - | 4.90 | 91,999 |
| Capitals Starting With K | 0 | - | 4.85 | 78,637 |
| Capitals Starting With L | 0 | - | 4.81 | 87,431 |
| Capitals Starting With M | 0 | - | 4.93 | 106,992 |
| Capitals Starting With P | 0 | - | 4.88 | 77,691 |
| Capitals Starting With R | 0 | - | 4.87 | 81,420 |
| Capitals Starting With S | 0 | - | 4.89 | 85,322 |
| Capitals Starting With T | 0 | - | 4.84 | 75,766 |
| Capitals Starting With W | 0 | - | 4.87 | 91,016 |
| Capitals Starting With A | 0 | - | 4.97 | 127,282 |
| Capitals Starting With B | 0 | - | 4.89 | 117,928 |
| Capitals Starting With D | 0 | - | 4.93 | 95,958 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,008 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,064 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,501 |
| Olympic Host Countries | 0 | - | 4.98 | 200,314 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,582 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,801 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 307,845 |
| The Only European Country ... | 0 | - | 4.91 | 215,941 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,702 |
| Hindu Countries | 0 | - | 4.86 | 49,996 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,751 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,572 |
| Countries of Africa | 0 | - | 5.00 | 2,529,531 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,594 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,824 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,595 |
| Australia A-Z | 0 | - | 4.54 | 49,938 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,074 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,347 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,489 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,181 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,676 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,954 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,131 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,626 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,704 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,076 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,052 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,371 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,148 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,424 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,056 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,222 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,272 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,794 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,114 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,507 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,384 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,768 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,521 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,792 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,669 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,680 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,938 |
| Former Capitals | 0 | - | 4.88 | 71,368 |
| Capital Cities Chain | 0 | - | 4.83 | 82,463 |
| Coldest World Capitals | 0 | - | 4.95 | 133,447 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,374 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,595 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,650 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,807 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,015 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,753 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,135 |
| Countries of the Middle East | 0 | - | 4.96 | 200,711 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,984 |
| Slavic Countries | 0 | - | 4.96 | 111,479 |
| African Island Countries | 0 | - | 4.96 | 101,407 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,785 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,838 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,777 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 46,364 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,756 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,876 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,350 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,633 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,259 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,139 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,825 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,623 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,406 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,509 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,505 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,076 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,952 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,373 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,979 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,955 |
