| World Capitals Quiz | 0 | - | 5.00 | 5,086,336 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,621,658 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 170,423 |
| Random African Countries on a Map | 0 | - | 4.99 | 296,922 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,369 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,782,344 |
| Boundary Waters | 0 | - | 4.92 | 88,601 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,271 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,730 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,324 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,474 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,489 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,980 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,591,780 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,648 |
| Landlocked Countries | 0 | - | 4.99 | 422,475 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,657 |
| Island Countries | 0 | - | 4.99 | 711,215 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,766 |
| Himalayan Countries | 0 | - | 4.95 | 138,961 |
| Andean Countries | 0 | - | 4.93 | 84,754 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,973 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,035 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,575 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,903 |
| Danube Countries | 0 | - | 4.97 | 72,082 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,100 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,479 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,424 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,901 |
| European Landlocked Countries | 0 | - | 4.99 | 147,207 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,742 |
| Countries with the Most Species | 0 | - | 4.99 | 103,288 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,858 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,626 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,743 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,582 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,288 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,719 |
| Countries in the Alps | 0 | - | 4.87 | 118,285 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,432 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,144 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,704 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,651 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,571 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,992 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,733 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,554 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,207 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,910 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,684 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,560 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,271 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,525 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,587 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,020 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,357 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,365 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,159 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,194 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,275 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,272 |
| Largest Countries By Category | 0 | - | 4.97 | 158,309 |
| Countries by Countries | 0 | - | 4.96 | 63,302 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,909 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,305 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,777 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,908 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,730 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,564 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,474 |
| Northernmost Countries | 0 | - | 4.99 | 362,204 |
| Countries of South America | 0 | - | 5.00 | 928,040 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,813 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,835 |
| "Land" Countries | 0 | - | 4.98 | 337,476 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,836,706 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,931 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,905 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,749 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,871 |
| Random U.S. States on a Map | 0 | - | 4.96 | 628,094 |
| All Country Flags of the World | 0 | - | 5.00 | 3,683,444 |
| Top World Languages | 0 | - | 4.92 | 825,003 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,548 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,511 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,127 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,330 |
| Longest International Borders | 0 | - | 4.99 | 265,280 |
| Countries with Three Borders | 0 | - | 4.96 | 36,631 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,148 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,254 |
| Demonym of Every Country | 0 | - | 4.91 | 60,824 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,635,343 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,562 |
| 4-Letter Geography Chain #1 | 0 | - | 4.82 | 170,302 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,970 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,171 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,105 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,031 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,991 |
| Countries with Megacities | 0 | - | 4.99 | 264,899 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,312 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,232 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,862 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,605 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,552 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,129 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,785 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,623 |
| Biggest Cities in the World | 0 | - | 4.91 | 801,537 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,385 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,200 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,113 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,851 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 144,463 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,262 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,854 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,995 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,422 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,235 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,348 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,881 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,695 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,914 |
| North American Sports Cities | 0 | - | 4.83 | 172,696 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,421 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,641 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,616 |
| Cities by Former Name | 0 | - | 4.83 | 91,763 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,158 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,112 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,506 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,604 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,596 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,779 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,728 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,557 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,419 |
| Countries by Capital City | 0 | - | 5.00 | 68,709 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,414 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,858 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,328 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,450 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,449 |
| Moved Capital Cities | 0 | - | 4.96 | 74,384 |
| World Capitals by Map | 0 | - | 5.00 | 287,627 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,509 |
| Random Capital to Country | 0 | - | 4.99 | 2,595,349 |
| Random Country to Capital | 0 | - | 4.98 | 923,272 |
| Capitals Starting With H | 0 | - | 4.91 | 92,762 |
| Capitals Starting With K | 0 | - | 4.88 | 83,817 |
| Capitals Starting With L | 0 | - | 4.81 | 88,285 |
| Capitals Starting With M | 0 | - | 4.93 | 108,125 |
| Capitals Starting With P | 0 | - | 4.88 | 78,388 |
| Capitals Starting With R | 0 | - | 4.87 | 82,009 |
| Capitals Starting With S | 0 | - | 4.90 | 85,995 |
| Capitals Starting With T | 0 | - | 4.84 | 76,345 |
| Capitals Starting With W | 0 | - | 4.87 | 91,420 |
| Capitals Starting With A | 0 | - | 4.97 | 128,345 |
| Capitals Starting With B | 0 | - | 4.89 | 118,760 |
| Capitals Starting With D | 0 | - | 4.93 | 96,667 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,809 |
| Countries by National Anthem | 0 | - | 4.93 | 71,306 |
| Countries by Official Language | 0 | - | 4.95 | 195,346 |
| NATO Countries | 0 | - | 4.98 | 281,756 |
| EU Countries Quiz | 0 | - | 4.99 | 275,791 |
| Recently Independent Countries | 0 | - | 4.98 | 159,527 |
| French-Speaking Countries | 0 | - | 4.85 | 270,972 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,914 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,510 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,686 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,559 |
| Countries in their Native Language | 0 | - | 4.99 | 199,139 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,739 |
| Independence from Whom | 0 | - | 4.99 | 212,226 |
| Subdivisions by Country | 0 | - | 4.87 | 50,449 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,817 |
| German-Speaking Countries | 0 | - | 4.91 | 145,787 |
| Megadiverse Countries | 0 | - | 4.96 | 135,057 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,106,318 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,187 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,002 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,385 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,315 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,691 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,562 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,369 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,079 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.92 | 113,354 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 112,639 |
| Olympic Host Countries | 0 | - | 4.98 | 201,189 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,149 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,264 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,223 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,124 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,888 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,777 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,049 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 311,084 |
