| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,756 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 228,067 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,660 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,543 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,834 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,667 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,909 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,149 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,213 |
| Random European Capital to Country | 0 | - | 4.98 | 192,299 |
| Random European Country to Capital | 0 | - | 4.93 | 166,019 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,071 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,533 |
| Random African Capital to Country | 0 | - | 4.97 | 101,437 |
| Random African Country to Capital | 0 | - | 4.94 | 71,850 |
| World Capitals Quiz | 0 | - | 5.00 | 5,111,842 |
| Europe Capital to Country | 0 | - | 4.99 | 252,465 |
| Asia Capital to Country | 0 | - | 4.96 | 127,657 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,203 |
| European Capitals by Map | 0 | - | 4.99 | 142,418 |
| African Capitals by Map | 0 | - | 4.99 | 142,498 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,086 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,068 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,327 |
| European Coastal Capitals | 0 | - | 4.95 | 91,451 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,253 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,137 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,108 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,228 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,446 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,457 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,587 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,338 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,696 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,265 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,462 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,646 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,524 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,037 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,794 |
| Monarchies of Europe | 0 | - | 4.90 | 98,993 |
| Monarchies of Asia | 0 | - | 4.97 | 71,579 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,331 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,319 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,558 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,803 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,903 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,130 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,755 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,417 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,875 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,907 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,443 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,617 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,921 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,012 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,905 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,797 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,588 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,853 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,425 |
| Countries with Megacities | 0 | - | 4.99 | 267,676 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,072 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,288 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,414 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,398 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,460 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,505 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,055 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,302 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,381 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,316 |
| Countries by Capital City | 0 | - | 5.00 | 69,561 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,091 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,320 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,277 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,922 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,523 |
| Moved Capital Cities | 0 | - | 4.96 | 74,710 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,708 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,557 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,584 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,108 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,360 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,647 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,384 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,431 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,456 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,785 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,972 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,331 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,693 |
| North American Sports Cities | 0 | - | 4.82 | 173,258 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,590 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,151 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,561 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,026 |
| Cities by Former Name | 0 | - | 4.83 | 92,156 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,967 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,026 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,193 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,049 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,938 |
| World Capitals by Map | 0 | - | 5.00 | 289,793 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,898 |
| Random Capital to Country | 0 | - | 4.99 | 2,603,476 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,308 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,420 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,521 |
| Random Country to Capital | 0 | - | 4.98 | 929,527 |
| Capitals Starting With H | 0 | - | 4.91 | 93,409 |
| Capitals Starting With K | 0 | - | 4.88 | 84,483 |
| Capitals Starting With L | 0 | - | 4.81 | 96,040 |
| Capitals Starting With M | 0 | - | 4.94 | 109,318 |
| Capitals Starting With P | 0 | - | 4.88 | 79,095 |
| Capitals Starting With R | 0 | - | 4.88 | 82,576 |
| Capitals Starting With S | 0 | - | 4.90 | 86,666 |
| Capitals Starting With T | 0 | - | 4.86 | 76,917 |
| Capitals Starting With W | 0 | - | 4.87 | 91,777 |
| Capitals Starting With A | 0 | - | 4.97 | 129,232 |
| Capitals Starting With B | 0 | - | 4.89 | 119,607 |
| Capitals Starting With D | 0 | - | 4.94 | 97,289 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,800 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,367 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,109 |
| Olympic Host Countries | 0 | - | 4.98 | 202,150 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,192 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,406 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,713 |
| The Only European Country ... | 0 | - | 4.91 | 219,427 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,230 |
| Hindu Countries | 0 | - | 4.86 | 50,641 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,756 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,970 |
| Countries of Africa | 0 | - | 5.00 | 2,563,325 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,755 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,306 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,650 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,259 |
| Australia A-Z | 0 | - | 4.54 | 50,159 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,504 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,560 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,956 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,513 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,800 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,857 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,005 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,813 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,967 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,980 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,593 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,264 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,562 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,913 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,845 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,334 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,771 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,140 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,238 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,817 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,625 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,029 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,706 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,274 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,777 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,666 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,944 |
| Former Capitals | 0 | - | 4.88 | 71,717 |
| Capital Cities Chain | 0 | - | 4.84 | 83,486 |
| Solve the Secret Capital City | 0 | - | 4.81 | 164,664 |
| Coldest World Capitals | 0 | - | 4.95 | 134,236 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,230 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,312 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,683 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,945 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,774 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,867 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,140 |
| Countries of the Middle East | 0 | - | 4.96 | 203,173 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,321 |
| Slavic Countries | 0 | - | 4.96 | 112,470 |
| African Island Countries | 0 | - | 4.96 | 102,690 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,225 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,290 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,671 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,472 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,778 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,074 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,768 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,956 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,429 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,881 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,312 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,067 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,723 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,673 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,060 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,956 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,485 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,022 |
