| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,231 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,026 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,662 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,463 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,726 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,431 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,516 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,797 |
| Random European Capital to Country | 0 | - | 4.98 | 190,564 |
| Random European Country to Capital | 0 | - | 4.93 | 164,366 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,156 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,543 |
| Random African Capital to Country | 0 | - | 4.97 | 100,449 |
| Random African Country to Capital | 0 | - | 4.94 | 71,006 |
| World Capitals Quiz | 0 | - | 5.00 | 5,060,902 |
| Europe Capital to Country | 0 | - | 4.99 | 249,461 |
| Asia Capital to Country | 0 | - | 4.96 | 126,413 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,512 |
| European Capitals by Map | 0 | - | 4.99 | 138,430 |
| African Capitals by Map | 0 | - | 4.99 | 133,234 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,000 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,834 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,196 |
| European Coastal Capitals | 0 | - | 4.95 | 90,338 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,480 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,004 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,461 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,715 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,587 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,260 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,944 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,215 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,859 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,943 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,667 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,049 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,042 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,048 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,147 |
| Monarchies of Europe | 0 | - | 4.90 | 97,914 |
| Monarchies of Asia | 0 | - | 4.97 | 70,950 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,756 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,518 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,581,938 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,955 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,094 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,600 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,870 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,452 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,004 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,765 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,678 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,148 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 126,366 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,792 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,837 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,739 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,799 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,581 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,547 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,846 |
| Countries with Megacities | 0 | - | 4.99 | 254,382 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,701 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,894 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,999 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,881 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,790 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,889 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,207 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,231 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,890 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,524 |
| Countries by Capital City | 0 | - | 5.00 | 67,852 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,927 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,423 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,490 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.88 | 11,256 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,916 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,284 |
| Moved Capital Cities | 0 | - | 4.96 | 74,012 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,846 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,167 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,187 |
| Top 10 Richest Countries in Africa | 0 | - | 4.86 | 75,892 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,253 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,208 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,632 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,488 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,299 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,621 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,235 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,307 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,867 |
| North American Sports Cities | 0 | - | 4.83 | 171,716 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,211 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,716 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,614 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,210 |
| Cities by Former Name | 0 | - | 4.83 | 91,401 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,305 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,549 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,950 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,876 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,830 |
| World Capitals by Map | 0 | - | 5.00 | 285,453 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,125 |
| Random Capital to Country | 0 | - | 4.99 | 2,587,286 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,618 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,886 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,439 |
| Random Country to Capital | 0 | - | 4.98 | 917,716 |
| Capitals Starting With H | 0 | - | 4.90 | 91,907 |
| Capitals Starting With K | 0 | - | 4.85 | 76,080 |
| Capitals Starting With L | 0 | - | 4.81 | 87,309 |
| Capitals Starting With M | 0 | - | 4.93 | 106,849 |
| Capitals Starting With P | 0 | - | 4.88 | 77,590 |
| Capitals Starting With R | 0 | - | 4.87 | 81,346 |
| Capitals Starting With S | 0 | - | 4.89 | 85,228 |
| Capitals Starting With T | 0 | - | 4.84 | 75,694 |
| Capitals Starting With W | 0 | - | 4.87 | 90,965 |
| Capitals Starting With A | 0 | - | 4.97 | 127,167 |
| Capitals Starting With B | 0 | - | 4.89 | 117,811 |
| Capitals Starting With D | 0 | - | 4.93 | 95,878 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,997 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,055 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,440 |
| Olympic Host Countries | 0 | - | 4.98 | 200,246 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,551 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,754 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 307,713 |
| The Only European Country ... | 0 | - | 4.91 | 215,877 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,646 |
| Hindu Countries | 0 | - | 4.86 | 49,983 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,692 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,559 |
| Countries of Africa | 0 | - | 5.00 | 2,528,853 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,556 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,807 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,540 |
| Australia A-Z | 0 | - | 4.54 | 49,936 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,978 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,319 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,477 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,150 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,641 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,930 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,113 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,600 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,686 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,054 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,038 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,291 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,131 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,410 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,037 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,222 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,257 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,789 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,607 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,111 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,498 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,349 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,738 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,464 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,763 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,642 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,664 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,925 |
| Former Capitals | 0 | - | 4.88 | 71,358 |
| Capital Cities Chain | 0 | - | 4.84 | 82,439 |
| Coldest World Capitals | 0 | - | 4.95 | 133,435 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,355 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,568 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,620 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,788 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,817 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,701 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,057 |
| Countries of the Middle East | 0 | - | 4.96 | 200,663 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,949 |
| Slavic Countries | 0 | - | 4.96 | 111,450 |
| African Island Countries | 0 | - | 4.96 | 101,379 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,774 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,807 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,729 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 46,309 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,730 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,848 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,077 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,609 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,230 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,102 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,777 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,593 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,384 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,485 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,500 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,058 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,929 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,351 |
