| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,071 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,005 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,586 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,114 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,444 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,417 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,483 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,742 |
| Random European Capital to Country | 0 | - | 4.98 | 190,499 |
| Random European Country to Capital | 0 | - | 4.93 | 164,035 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,040 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,227 |
| Random African Capital to Country | 0 | - | 4.97 | 100,361 |
| Random African Country to Capital | 0 | - | 4.94 | 70,961 |
| World Capitals Quiz | 0 | - | 5.00 | 5,058,878 |
| Europe Capital to Country | 0 | - | 4.99 | 249,366 |
| Asia Capital to Country | 0 | - | 4.96 | 126,362 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,445 |
| European Capitals by Map | 0 | - | 4.99 | 138,325 |
| African Capitals by Map | 0 | - | 4.99 | 133,143 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,949 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,789 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,153 |
| European Coastal Capitals | 0 | - | 4.95 | 90,301 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,446 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,857 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,328 |
| Capitals of Mediterranean Countries | 0 | - | 4.96 | 81,685 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,564 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,110 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,828 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,171 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,836 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,903 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,636 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,032 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,024 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,994 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,114 |
| Monarchies of Europe | 0 | - | 4.90 | 97,869 |
| Monarchies of Asia | 0 | - | 4.97 | 70,922 |
| Asian Country Superlatives | 0 | - | 4.85 | 80,743 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,189 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,581,206 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,923 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,073 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,555 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,849 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,383 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,931 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,428 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,952 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 120,758 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,629 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,794 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,696 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,779 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,089 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,411 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,723 |
| Countries with Megacities | 0 | - | 4.99 | 249,849 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,559 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,809 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,876 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,799 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,734 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,831 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,189 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,205 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,837 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,444 |
| Countries by Capital City | 0 | - | 5.00 | 67,777 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,892 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,386 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,352 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,886 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,282 |
| Moved Capital Cities | 0 | - | 4.96 | 73,991 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,693 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,121 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,927 |
| Top 10 Richest Countries in Africa | 0 | - | 4.86 | 75,689 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,049 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,193 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,562 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,442 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,210 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,556 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,199 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,262 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,825 |
| North American Sports Cities | 0 | - | 4.83 | 171,647 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,148 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,665 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,564 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,184 |
| Cities by Former Name | 0 | - | 4.83 | 91,372 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,287 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,527 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,940 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,876 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,784 |
| World Capitals by Map | 0 | - | 5.00 | 285,319 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,094 |
| Random Capital to Country | 0 | - | 4.99 | 2,586,710 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,590 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,868 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,405 |
| Random Country to Capital | 0 | - | 4.98 | 917,061 |
| Capitals Starting With H | 0 | - | 4.90 | 91,879 |
| Capitals Starting With K | 0 | - | 4.85 | 76,056 |
| Capitals Starting With L | 0 | - | 4.81 | 87,284 |
| Capitals Starting With M | 0 | - | 4.93 | 106,804 |
| Capitals Starting With P | 0 | - | 4.88 | 77,564 |
| Capitals Starting With R | 0 | - | 4.87 | 81,328 |
| Capitals Starting With S | 0 | - | 4.89 | 85,200 |
| Capitals Starting With T | 0 | - | 4.84 | 75,671 |
| Capitals Starting With W | 0 | - | 4.87 | 90,950 |
| Capitals Starting With A | 0 | - | 4.97 | 127,124 |
| Capitals Starting With B | 0 | - | 4.89 | 117,779 |
| Capitals Starting With D | 0 | - | 4.93 | 95,846 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,974 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,045 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,340 |
| Olympic Host Countries | 0 | - | 4.98 | 200,034 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,489 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,653 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 307,372 |
| The Only European Country ... | 0 | - | 4.91 | 215,750 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,551 |
| Hindu Countries | 0 | - | 4.86 | 49,952 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,614 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,539 |
| Countries of Africa | 0 | - | 5.00 | 2,527,496 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,377 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,771 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,492 |
| Australia A-Z | 0 | - | 4.54 | 49,928 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,858 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,252 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,447 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,090 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,602 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,893 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,077 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,538 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,619 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,029 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,017 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,114 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,113 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,380 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,009 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,219 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,235 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,778 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,568 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,101 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,478 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,297 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,704 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,329 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,729 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,563 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,631 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,887 |
| Former Capitals | 0 | - | 4.88 | 71,346 |
| Capital Cities Chain | 0 | - | 4.83 | 82,402 |
| Coldest World Capitals | 0 | - | 4.95 | 133,415 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,316 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,536 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,576 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,766 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,321 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,629 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,928 |
| Countries of the Middle East | 0 | - | 4.96 | 200,577 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,903 |
| Slavic Countries | 0 | - | 4.96 | 111,408 |
| African Island Countries | 0 | - | 4.96 | 101,334 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,760 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,765 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,646 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 46,197 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,691 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,799 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,019,514 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,558 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,179 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,037 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,595 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,518 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,336 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,427 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,481 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,779 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,882 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,141 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,898 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,891 |
