| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,483 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,225 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,233 |
| Africa Capitals Quiz | 0 | - | 4.99 | 741,522 |
| Asia Capitals Quiz | 0 | - | 4.98 | 696,515 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,919 |
| Random European Capital to Country | 0 | - | 4.98 | 191,767 |
| Random European Country to Capital | 0 | - | 4.93 | 165,619 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,848 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,209 |
| Random African Capital to Country | 0 | - | 4.97 | 101,122 |
| Random African Country to Capital | 0 | - | 4.94 | 71,569 |
| World Capitals Quiz | 0 | - | 5.00 | 5,092,750 |
| Europe Capital to Country | 0 | - | 4.99 | 251,419 |
| Asia Capital to Country | 0 | - | 4.96 | 127,115 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,544 |
| European Capitals by Map | 0 | - | 4.99 | 141,175 |
| African Capitals by Map | 0 | - | 4.99 | 140,937 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,481 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,569 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,924 |
| European Coastal Capitals | 0 | - | 4.95 | 91,030 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,035 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,529 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,092 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,027 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,947 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,594,454 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,589 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,260 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,916 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,352 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,737 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,201 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,421 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,731 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,532 |
| Capitals of the Stans | 0 | - | 4.95 | 27,034 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,367 |
| Countries with Megacities | 0 | - | 4.99 | 265,658 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,149 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,712 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,423 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,790 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,885 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,402 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,840 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,744 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,937 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,854 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,696 |
| Countries by Capital City | 0 | - | 5.00 | 68,967 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,583 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,999 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,582 |
| Moved Capital Cities | 0 | - | 4.96 | 74,486 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,128 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,718 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,411 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,019 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,736 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,584 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,833 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,999 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,693 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,633 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,091 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,552 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,383 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,701 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,930 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,368 |
| North American Sports Cities | 0 | - | 4.83 | 172,866 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,468 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,745 |
| Name a City - European Countries | 0 | - | 4.90 | 65,883 |
| Cities by Former Name | 0 | - | 4.83 | 91,861 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,574 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,853 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,579 |
| World Capitals by Map | 0 | - | 5.00 | 288,349 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,642 |
| Random Capital to Country | 0 | - | 4.99 | 2,597,238 |
| Random Country to Capital | 0 | - | 4.98 | 924,849 |
| Capitals Starting With H | 0 | - | 4.91 | 92,868 |
| Capitals Starting With K | 0 | - | 4.88 | 83,925 |
| Capitals Starting With L | 0 | - | 4.81 | 88,392 |
| Capitals Starting With M | 0 | - | 4.93 | 108,335 |
| Capitals Starting With P | 0 | - | 4.88 | 78,505 |
| Capitals Starting With R | 0 | - | 4.87 | 82,105 |
| Capitals Starting With S | 0 | - | 4.90 | 86,099 |
| Capitals Starting With T | 0 | - | 4.85 | 76,437 |
| Capitals Starting With W | 0 | - | 4.87 | 91,475 |
| Capitals Starting With A | 0 | - | 4.97 | 128,496 |
| Capitals Starting With B | 0 | - | 4.89 | 118,901 |
| Capitals Starting With D | 0 | - | 4.93 | 96,782 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,107 |
| Olympic Host Countries | 0 | - | 4.98 | 201,474 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,521 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 116,546 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,054 |
| The Only European Country ... | 0 | - | 4.91 | 218,080 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,251 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,031 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,808 |
| Countries of Africa | 0 | - | 5.00 | 2,550,752 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,098 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,090 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,222 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,172 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,446 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,235 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,157 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,088 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,789 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,971 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,367 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,506 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,647 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,060 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,284 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,415 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,938 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,478 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,666 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,374 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,047 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,402 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,716 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,556 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,290 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,592 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,017 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,202 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,674 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,169 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,640 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,928 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,708 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,435 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,358 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,577 |
| Former Capitals | 0 | - | 4.88 | 71,586 |
| Capital Cities Chain | 0 | - | 4.84 | 83,130 |
| Coldest World Capitals | 0 | - | 4.95 | 134,036 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,918 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,048 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,278 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 145,153 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,332,848 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,018 |
| Countries of the Middle East | 0 | - | 4.96 | 202,115 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,840 |
| Slavic Countries | 0 | - | 4.96 | 112,106 |
| African Island Countries | 0 | - | 4.96 | 102,153 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,031 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,970 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,310 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,390 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,591 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,039 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,473 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,021 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,214 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,876 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,952 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,206 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,273 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,829 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,582 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,766 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,234 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,989 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,639 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,899 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,898 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,147 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,502 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,833 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,619 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,245 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,603 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,921 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,709 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,731 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,386 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,648 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,742 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,038 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,496 |
| Ancient City to Country | 0 | - | 4.70 | 108,226 |
| Official Cities in the UK | 0 | - | 4.89 | 285,229 |
| City-States | 0 | - | 4.53 | 37,345 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,420 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,756 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,109 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,231 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,281 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,826 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,180 |
