| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,732 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,999 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,513 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,465 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,346 |
| World Capitals Quiz | 0 | - | 5.00 | 5,109,645 |
| Europe Capital to Country | 0 | - | 4.99 | 252,281 |
| Asia Capital to Country | 0 | - | 4.96 | 127,620 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,098 |
| European Capitals by Map | 0 | - | 4.99 | 142,287 |
| African Capitals by Map | 0 | - | 4.99 | 142,356 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,012 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,980 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,259 |
| European Coastal Capitals | 0 | - | 4.95 | 91,390 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,231 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,963 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,965 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,201 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,123 |
| Random European Capital to Country | 0 | - | 4.98 | 192,240 |
| Random European Country to Capital | 0 | - | 4.93 | 165,985 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,047 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,509 |
| Random African Capital to Country | 0 | - | 4.97 | 101,398 |
| Random African Country to Capital | 0 | - | 4.95 | 71,797 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,975 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,795 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,231 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,426 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,294 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,639 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,204 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,435 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,620 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,000 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,748 |
| Capitals of the Stans | 0 | - | 4.95 | 27,187 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,321 |
| Countries with Megacities | 0 | - | 4.99 | 267,466 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,987 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,228 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,318 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,332 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,402 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,454 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,023 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,270 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,323 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,241 |
| Countries by Capital City | 0 | - | 5.00 | 69,506 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,925 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,282 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,878 |
| Moved Capital Cities | 0 | - | 4.96 | 74,692 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,834 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,639 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,997 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,710 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,118 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,727 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,726 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,599 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,748 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,401 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,361 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,733 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,947 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,294 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,672 |
| North American Sports Cities | 0 | - | 4.82 | 173,209 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,583 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,992 |
| Name a City - European Countries | 0 | - | 4.89 | 66,254 |
| Cities by Former Name | 0 | - | 4.83 | 92,116 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,954 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,009 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,510 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,846 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,901 |
| World Capitals by Map | 0 | - | 5.00 | 289,672 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,866 |
| Capitals Starting With H | 0 | - | 4.91 | 93,383 |
| Capitals Starting With K | 0 | - | 4.88 | 84,460 |
| Capitals Starting With M | 0 | - | 4.94 | 109,271 |
| Capitals Starting With P | 0 | - | 4.88 | 79,061 |
| Capitals Starting With R | 0 | - | 4.88 | 82,551 |
| Capitals Starting With S | 0 | - | 4.90 | 86,630 |
| Capitals Starting With T | 0 | - | 4.86 | 76,885 |
| Capitals Starting With W | 0 | - | 4.87 | 91,767 |
| Capitals Starting With A | 0 | - | 4.97 | 129,184 |
| Capitals Starting With B | 0 | - | 4.89 | 119,574 |
| Capitals Starting With D | 0 | - | 4.94 | 97,264 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,982 |
| Olympic Host Countries | 0 | - | 4.98 | 202,078 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,098 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,295 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,372 |
| The Only European Country ... | 0 | - | 4.91 | 219,279 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,118 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,655 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,955 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,710 |
| Random Country to Capital | 0 | - | 4.98 | 929,094 |
| Countries of Africa | 0 | - | 5.00 | 2,562,048 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,325 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,758 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,121 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,232 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,886 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,184 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,291 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,401 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,463 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,767 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,350 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,339 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,506 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,942 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,455 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,751 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,808 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,961 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,223 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,757 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,904 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,948 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,566 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,235 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,543 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,887 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,806 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,804 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,569 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,987 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,603 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,168 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,737 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,627 |
| Former Capitals | 0 | - | 4.88 | 71,704 |
| Capital Cities Chain | 0 | - | 4.84 | 83,445 |
| Coldest World Capitals | 0 | - | 4.95 | 134,192 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,200 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,268 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,632 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,391 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,006 |
| Countries of the Middle East | 0 | - | 4.96 | 203,077 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,262 |
| Slavic Countries | 0 | - | 4.96 | 112,430 |
| African Island Countries | 0 | - | 4.96 | 102,623 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,206 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,587 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,342 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,735 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,020 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,321 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,898 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,381 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,792 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,237 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,918 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,654 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,629 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,036 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,909 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,153 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,943 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,523 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,990 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,225 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 44,875 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,178 |
| Boundary Waters | 0 | - | 4.92 | 88,799 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,430 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,762 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,420 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,010 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,732 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,283 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,101 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 104,981 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,996 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,926 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,027 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,514 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,840 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,296 |
| Unusual U.S. City Names | 0 | - | 4.52 | 28,029 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,590 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,632 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.38 | 54,184 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,746 |
| Ancient City to Country | 0 | - | 4.72 | 108,377 |
| Official Cities in the UK | 0 | - | 4.89 | 286,541 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,205 |
| City-States | 0 | - | 4.53 | 37,422 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,606 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,518 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,838 |
