| World Capitals Quiz | 0 | - | 5.00 | 5,051,931 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,181,743 |
| Random Asian Countries on a Map | 0 | - | 4.90 | 169,391 |
| Random African Countries on a Map | 0 | - | 4.99 | 294,760 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,708 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,742,295 |
| Boundary Waters | 0 | - | 4.92 | 88,249 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,980 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,389 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,673 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,316 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,578 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,123 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,578,445 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,910 |
| Landlocked Countries | 0 | - | 4.99 | 416,902 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,943 |
| Island Countries | 0 | - | 4.99 | 708,898 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,046 |
| Himalayan Countries | 0 | - | 4.95 | 136,600 |
| Andean Countries | 0 | - | 4.95 | 83,540 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,794 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,076 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,469 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,060 |
| Danube Countries | 0 | - | 4.97 | 71,454 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,265 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,866 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,211 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,193 |
| European Landlocked Countries | 0 | - | 4.99 | 146,155 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,812 |
| Countries with the Most Species | 0 | - | 4.99 | 102,056 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,939 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,342 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,522 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,179 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,828 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,207 |
| Countries in the Alps | 0 | - | 4.86 | 117,365 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,925 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,952 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,273 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,767 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,861 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,276 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,010 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,005 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,825 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,367 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,373 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,215 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,746 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,020 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,026 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,763 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,914 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,442 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,269 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,130 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,633 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,844 |
| Largest Countries By Category | 0 | - | 4.97 | 157,300 |
| Countries by Countries | 0 | - | 4.96 | 62,614 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,080 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,086 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,703 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,921 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,110 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,681 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,617 |
| Northernmost Countries | 0 | - | 4.99 | 359,481 |
| Countries of South America | 0 | - | 5.00 | 919,973 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,356 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,522 |
| "Land" Countries | 0 | - | 4.98 | 334,697 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,814,512 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,064 |
| Europe Map Quiz | 0 | - | 5.00 | 4,747,054 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,109 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,649 |
| Random U.S. States on a Map | 0 | - | 4.96 | 623,803 |
| All Country Flags of the World | 0 | - | 5.00 | 3,632,102 |
| Top World Languages | 0 | - | 4.92 | 817,642 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,957 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,330 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,321 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,874 |
| Longest International Borders | 0 | - | 4.99 | 264,345 |
| Countries with Three Borders | 0 | - | 4.96 | 36,359 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,793 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,885 |
| Demonym of Every Country | 0 | - | 4.91 | 58,937 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,605,251 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,269 |
| 4-Letter Geography Chain #1 | 0 | - | 4.81 | 169,637 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,279 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,937 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,441 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,372 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,311 |
| Countries with Megacities | 0 | - | 4.99 | 249,133 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,953 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,368 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,235 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,108 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,596 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,556 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,118 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,565 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,299 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,195 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,463 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,390 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,503 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,864 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,065 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,977 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,485 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,155 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,466 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,529 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,056 |
| Biggest Cities in the United States | 0 | - | 4.93 | 972,358 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,923 |
| North American Sports Cities | 0 | - | 4.83 | 171,425 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,050 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,509 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,058 |
| Cities by Former Name | 0 | - | 4.84 | 91,288 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,886 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,313 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,224 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,630 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,069 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,458 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,090 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,351 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,217 |
| Countries by Capital City | 0 | - | 5.00 | 67,526 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,769 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,270 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,801 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,726 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,551 |
| Moved Capital Cities | 0 | - | 4.96 | 73,901 |
| World Capitals by Map | 0 | - | 5.00 | 284,889 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,993 |
| Random Capital to Country | 0 | - | 4.99 | 2,584,639 |
| Random Country to Capital | 0 | - | 4.98 | 915,290 |
| Capitals Starting With H | 0 | - | 4.90 | 91,752 |
| Capitals Starting With K | 0 | - | 4.85 | 75,958 |
| Capitals Starting With L | 0 | - | 4.81 | 87,169 |
| Capitals Starting With M | 0 | - | 4.93 | 106,619 |
| Capitals Starting With P | 0 | - | 4.88 | 77,467 |
| Capitals Starting With R | 0 | - | 4.87 | 81,252 |
| Capitals Starting With S | 0 | - | 4.89 | 85,094 |
| Capitals Starting With T | 0 | - | 4.84 | 75,582 |
| Capitals Starting With W | 0 | - | 4.87 | 90,869 |
| Capitals Starting With A | 0 | - | 4.97 | 126,973 |
| Capitals Starting With B | 0 | - | 4.89 | 117,658 |
| Capitals Starting With D | 0 | - | 4.93 | 95,731 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,020 |
| Countries by National Anthem | 0 | - | 4.92 | 71,128 |
| Countries by Official Language | 0 | - | 4.95 | 194,064 |
| NATO Countries | 0 | - | 4.98 | 278,221 |
| EU Countries Quiz | 0 | - | 4.99 | 271,778 |
| Recently Independent Countries | 0 | - | 4.98 | 158,417 |
| French-Speaking Countries | 0 | - | 4.85 | 269,792 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,571 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,793 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,006 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,503 |
| Countries in their Native Language | 0 | - | 4.99 | 197,673 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,564 |
| Independence from Whom | 0 | - | 4.99 | 210,863 |
| Subdivisions by Country | 0 | - | 4.86 | 50,210 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,380 |
| German-Speaking Countries | 0 | - | 4.91 | 144,130 |
| Megadiverse Countries | 0 | - | 4.96 | 134,559 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,728 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,884 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,058 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,087 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,665 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,179 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,444 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,125 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,234 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 112,116 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,344 |
| Olympic Host Countries | 0 | - | 4.98 | 199,641 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,298 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,640 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,202 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,954 |
| Anagram Chain - Countries | 0 | - | 4.98 | 115,866 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,363 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,504 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 306,277 |
