| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.90 | 205,189 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 61,259 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,157 |
| Africa Capitals Quiz | 0 | - | 4.99 | 626,015 |
| Asia Capitals Quiz | 0 | - | 4.98 | 586,416 |
| Most Guessed European Capitals | 0 | - | 4.89 | 95,959 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 76,142 |
| Name a World Capital A-Z | 0 | - | 4.99 | 139,565 |
| Random European Capital to Country | 0 | - | 4.97 | 151,257 |
| Random European Country to Capital | 0 | - | 4.92 | 133,854 |
| Random Asian Country to Capital | 0 | - | 4.94 | 84,946 |
| Random Asian Capital to Country | 0 | - | 4.97 | 88,230 |
| Random African Capital to Country | 0 | - | 4.97 | 78,478 |
| Random African Country to Capital | 0 | - | 4.94 | 61,307 |
| World Capitals Quiz | 0 | - | 5.00 | 4,450,553 |
| Europe Capital to Country | 0 | - | 4.99 | 217,812 |
| Asia Capital to Country | 0 | - | 4.96 | 104,876 |
| EU Capitals with No Hints | 0 | - | 4.95 | 122,791 |
| European Capitals by Map | 0 | - | 4.99 | 90,355 |
| African Capitals by Map | 0 | - | 4.99 | 108,637 |
| Asian Capitals by Map | 0 | - | 4.98 | 45,793 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.87 | 77,885 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.95 | 71,082 |
| European Coastal Capitals | 0 | - | 4.95 | 76,346 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 46,155 |
| Capitals of Oceania Quiz | 0 | - | 4.98 | 224,542 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.90 | 191,423 |
| Capitals of Mediterranean Countries | 0 | - | 4.97 | 75,655 |
| Divided World City Name Puzzle #1 | 0 | - | 4.90 | 39,174 |
| South America Capitals Quiz | 0 | - | 5.00 | 414,676 |
| North America Capitals Quiz | 0 | - | 4.99 | 183,735 |
| African Capitals - Map Quiz | 0 | - | 4.95 | 51,459 |
| Top 10 Most Remote European Capitals | 0 | - | 4.84 | 83,523 |
| European Capitals - Map Quiz | 0 | - | 4.98 | 104,087 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 77,283 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 66,438 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 87,788 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 50,320 |
| European Capitals Ending in N | 0 | - | 4.91 | 73,388 |
| Monarchies of Europe | 0 | - | 4.88 | 86,092 |
| Monarchies of Asia | 0 | - | 4.95 | 53,523 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,366,215 |
| Countries Closest to United States A-Z | 0 | - | 4.86 | 106,123 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 98,754 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 175,419 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 72,921 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 113,493 |
| Name a Valid European Capital | 0 | - | 4.92 | 102,530 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 176,388 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 108,529 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 100,509 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,233 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 179,822 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 114,680 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,039 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,300,123 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,137 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 123,851 |
| Countries with Megacities | 0 | - | 4.99 | 194,284 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,041 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,648 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,401 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,513 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 244,554 |
| Global Cities on a World Map | 0 | - | 4.93 | 90,519 |
| Northernmost Capital Cities | 0 | - | 4.98 | 92,835 |
| Most Remote Capital Cities | 0 | - | 4.90 | 42,940 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 33,556 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 89,260 |
| Same Letter Country and Capital | 0 | - | 4.99 | 125,678 |
| Countries by Capital City | 0 | - | 4.99 | 47,997 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 65,148 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 92,906 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 72,048 |
| European Capitals with the Least Sunshine | 0 | - | 4.48 | 47,362 |
| Moved Capital Cities | 0 | - | 4.94 | 51,822 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,681 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 114,468 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 37,901 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.87 | 67,078 |
| Top 10 Richest Countries in Asia | 0 | - | 4.86 | 72,286 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 66,804 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 133,401 |
| Countries Closest to Germany A-Z | 0 | - | 4.96 | 8,025 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 64,039 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,198 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,099 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,078 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,399 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,282 |
| Countries by Population Range - Tile Select | 0 | - | 4.86 | 49,923 |
| Summer Olympic City Bids | 0 | - | 4.93 | 36,728 |
| Most Guessed U.S. Cities | 0 | - | 4.90 | 90,170 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.82 | 60,369 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.87 | 90,425 |
| Cities by Former Name | 0 | - | 4.87 | 70,073 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,052 |
| Nearest Capital City #1 | 0 | - | 4.81 | 52,153 |
| World Capitals by Proximity | 0 | - | 4.87 | 284,189 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 63,095 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 48,517 |
| World Capitals by Map | 0 | - | 5.00 | 237,430 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 49,832 |
| Random Capital to Country | 0 | - | 4.99 | 2,339,081 |
| Random African Capitals on a Map | 0 | - | 4.95 | 47,628 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 44,554 |
| Random European Capitals on a Map | 0 | - | 4.97 | 105,863 |
| Random Country to Capital | 0 | - | 4.98 | 793,115 |
| World Capitals By Letter - H | 0 | - | 4.84 | 70,671 |
| World Capitals By Letter - K | 0 | - | 4.82 | 65,364 |
| World Capitals By Letter - M | 0 | - | 4.90 | 85,250 |
| World Capitals By Letter - P | 0 | - | 4.85 | 66,491 |
| World Capitals By Letter - R | 0 | - | 4.87 | 71,766 |
| World Capitals By Letter - S | 0 | - | 4.89 | 73,877 |
| World Capitals By Letter - W | 0 | - | 4.88 | 81,624 |
| World Capitals By Letter - A | 0 | - | 4.96 | 103,624 |
| World Capitals By Letter - B | 0 | - | 4.84 | 96,005 |
| World Capitals By Letter - D | 0 | - | 4.91 | 78,307 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 79,037 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.85 | 38,735 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,270 |
| Olympic Host Countries | 0 | - | 4.98 | 160,084 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 90,630 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 228,371 |
| The Only European Country ... | 0 | - | 4.94 | 175,627 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 191,645 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.92 | 86,353 |
| Countries of Africa | 0 | - | 5.00 | 2,136,206 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 123,056 |
| Countries with the Most Hindus | 0 | - | 4.93 | 112,232 |
| Biggest Trading Partners - Turkey | 0 | - | 4.82 | 44,223 |
| Biggest Trading Partners - South Africa | 0 | - | 4.82 | 37,218 |
| Australia A-Z | 0 | - | 4.48 | 38,182 |
| Countries of Europe by Population | 0 | - | 4.98 | 124,196 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,156 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 95,415 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 74,301 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 92,437 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 64,308 |
| Most Populous World Capitals | 0 | - | 4.92 | 146,278 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 203,779 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 108,709 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,120 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,544 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,268 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,484 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,171 |
| Biggest City by Body of Water | 0 | - | 4.52 | 38,784 |
| Global Cities Quiz | 0 | - | 4.64 | 156,244 |
| Southernmost Major Cities | 0 | - | 4.41 | 45,112 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.45 | 67,950 |
| European Cities A-Z | 0 | - | 4.23 | 70,173 |
| Cities with the Most Foreign Embassies | 0 | - | 4.66 | 45,131 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.41 | 34,909 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.91 | 89,098 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.94 | 78,337 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 191,998 |
| Most-Visited Cities in Europe | 0 | - | 4.91 | 55,413 |
| Cities with the Biggest Economies | 0 | - | 4.92 | 117,331 |
| Five Most Guessed Cities by Continent | 0 | - | 4.97 | 103,836 |
| Capital Cities Chain | 0 | - | 4.87 | 70,705 |
| Coldest World Capitals | 0 | - | 4.96 | 127,648 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 77,762 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 73,355 |
| Name a Valid U.S. State Capital | 0 | - | 4.82 | 48,769 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,168,996 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 18,781 |
| Countries with the Most Christians | 0 | - | 4.93 | 105,816 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 183,095 |
| Countries of the Middle East | 0 | - | 4.96 | 171,095 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 73,610 |
| Slavic Countries | 0 | - | 4.96 | 99,689 |
| African Island Countries | 0 | - | 4.96 | 88,398 |
| Straight Shot to Antarctica | 0 | - | 4.90 | 36,873 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 71,301 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.90 | 47,507 |
| Asian Country Superlatives | 0 | - | 4.77 | 61,223 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 142,652 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 139,004 |
| Countries of North America Quiz | 0 | - | 5.00 | 867,463 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 109,807 |
| Asian Countries Ending in "IA" | 0 | - | 4.94 | 92,516 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 117,904 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 125,296 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 196,193 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 159,415 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 124,677 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 106,366 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 131,166 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 137,262 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 103,776 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 129,614 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 87,884 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 95,636 |
| Countries Closest to Israel | 0 | - | 4.87 | 98,021 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 34,938 |
| Italy A-Z | 0 | - | 4.43 | 40,335 |
| China A-Z | 0 | - | 4.64 | 59,618 |
| Germany A-Z | 0 | - | 4.70 | 49,409 |
| Japan A-Z | 0 | - | 4.49 | 38,376 |
