| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,161 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,616 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,044 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,552 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,997 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,159 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,964 |
| Random European Capital to Country | 0 | - | 4.98 | 189,084 |
| Random European Country to Capital | 0 | - | 4.92 | 147,356 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,298 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,337 |
| Random African Capital to Country | 0 | - | 4.97 | 99,682 |
| Random African Country to Capital | 0 | - | 4.94 | 70,161 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,768 |
| Europe Capital to Country | 0 | - | 4.99 | 247,335 |
| Asia Capital to Country | 0 | - | 4.96 | 125,642 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,326 |
| European Capitals by Map | 0 | - | 4.99 | 135,995 |
| African Capitals by Map | 0 | - | 4.99 | 132,075 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,991 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,087 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,539 |
| European Coastal Capitals | 0 | - | 4.95 | 89,668 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,149 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,454 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,581 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,385 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,054 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,898 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,587 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,566 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,345 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,037 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,090 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,654 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,658 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,382 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,717 |
| Monarchies of Europe | 0 | - | 4.90 | 97,229 |
| Monarchies of Asia | 0 | - | 4.97 | 70,546 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,387 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,199 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,464 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,318 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,379 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,713 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,417 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,123 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,308 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,166 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,018 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,183 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,048 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,456 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,806 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,279 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,906 |
| Countries with Megacities | 0 | - | 4.99 | 246,299 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,828 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,754 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,286 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,693 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,617 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,835 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,580 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,533 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,498 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,257 |
| Countries by Capital City | 0 | - | 5.00 | 66,490 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,240 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,822 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,030 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,355 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,132 |
| Moved Capital Cities | 0 | - | 4.96 | 73,529 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,429 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,334 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,834 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,052 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,134 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,062 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,055 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,743 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,739 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,778 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,411 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,510 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,172 |
| North American Sports Cities | 0 | - | 4.83 | 170,785 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,889 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,745 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,956 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,649 |
| Name a City - European Countries | 0 | - | 4.92 | 64,285 |
| Cities by Former Name | 0 | - | 4.84 | 90,886 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,645 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,197 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,778 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,778 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,811 |
| World Capitals by Map | 0 | - | 5.00 | 282,900 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,609 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,595 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,217 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,583 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,756 |
| Random Country to Capital | 0 | - | 4.98 | 910,740 |
| Capitals Starting With H | 0 | - | 4.90 | 89,744 |
| Capitals Starting With K | 0 | - | 4.85 | 75,555 |
| Capitals Starting With M | 0 | - | 4.93 | 105,862 |
| Capitals Starting With P | 0 | - | 4.88 | 77,063 |
| Capitals Starting With R | 0 | - | 4.87 | 80,856 |
| Capitals Starting With S | 0 | - | 4.89 | 84,675 |
| Capitals Starting With T | 0 | - | 4.84 | 75,182 |
| Capitals Starting With W | 0 | - | 4.89 | 90,503 |
| Capitals Starting With A | 0 | - | 4.97 | 126,370 |
| Capitals Starting With B | 0 | - | 4.89 | 117,132 |
| Capitals Starting With D | 0 | - | 4.93 | 95,224 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,448 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,832 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,777 |
| Olympic Host Countries | 0 | - | 4.98 | 198,780 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,744 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,372 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 302,910 |
| The Only European Country ... | 0 | - | 4.91 | 213,553 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,888 |
| Hindu Countries | 0 | - | 4.85 | 49,457 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,358 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,161 |
| Countries of Africa | 0 | - | 5.00 | 2,505,151 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,242 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,230 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,779 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,085 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,091 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,189 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,784 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,311 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,487 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,430 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,339 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,186 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,194 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,533 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,499 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,735 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,129 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,137 |
| Southernmost Major Cities | 0 | - | 4.44 | 51,066 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,546 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,011 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,270 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,258 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,105 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,922 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,675 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,533 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,279 |
| U.S. Cities With Spanish Names | 0 | - | 4.93 | 21,998 |
| Former Capitals | 0 | - | 4.88 | 71,095 |
| Capital Cities Chain | 0 | - | 4.84 | 81,831 |
| Coldest World Capitals | 0 | - | 4.95 | 132,993 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,708 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,717 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,898 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,113 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,747 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,293 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,089 |
| Countries of the Middle East | 0 | - | 4.96 | 198,744 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,177 |
| Slavic Countries | 0 | - | 4.96 | 110,784 |
| African Island Countries | 0 | - | 4.96 | 100,684 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,463 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,822 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,204 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,855 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,026 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,986 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,678 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,604 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,384 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,953 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,689 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,507 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,608 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,683 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,120 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,093 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,210 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,484 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,172 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,332 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,146 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,442 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,335 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,623 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,809 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,961 |
