| World Capitals Quiz | 0 | - | 5.00 | 5,051,616 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,176,767 |
| Random Asian Countries on a Map | 0 | - | 4.90 | 169,374 |
| Random African Countries on a Map | 0 | - | 4.99 | 294,750 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,695 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,753 |
| Boundary Waters | 0 | - | 4.92 | 88,242 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,973 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,383 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,667 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,311 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,567 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,027 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,578,263 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,885 |
| Landlocked Countries | 0 | - | 4.99 | 416,835 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,902 |
| Island Countries | 0 | - | 4.99 | 708,879 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,016 |
| Himalayan Countries | 0 | - | 4.95 | 136,574 |
| Andean Countries | 0 | - | 4.95 | 83,526 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,786 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,054 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,459 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,050 |
| Danube Countries | 0 | - | 4.97 | 71,447 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,248 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,864 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,183 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,170 |
| European Landlocked Countries | 0 | - | 4.99 | 146,144 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,801 |
| Countries with the Most Species | 0 | - | 4.99 | 101,935 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,925 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,341 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,518 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,172 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,823 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,204 |
| Countries in the Alps | 0 | - | 4.86 | 117,357 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,919 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,936 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,267 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,761 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,848 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,272 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,006 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,003 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,821 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,350 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,372 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,212 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,741 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,016 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,021 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,751 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,910 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,439 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,266 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,095 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,619 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,841 |
| Largest Countries By Category | 0 | - | 4.97 | 157,291 |
| Countries by Countries | 0 | - | 4.96 | 62,606 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,883 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,084 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,689 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,911 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,101 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,669 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,546 |
| Northernmost Countries | 0 | - | 4.99 | 359,455 |
| Countries of South America | 0 | - | 5.00 | 919,914 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,159 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,298 |
| "Land" Countries | 0 | - | 4.98 | 334,671 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,814,267 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,055 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,723 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,100 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,644 |
| Random U.S. States on a Map | 0 | - | 4.96 | 623,743 |
| All Country Flags of the World | 0 | - | 5.00 | 3,631,540 |
| Top World Languages | 0 | - | 4.92 | 817,555 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,954 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,329 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,303 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,868 |
| Longest International Borders | 0 | - | 4.99 | 264,330 |
| Countries with Three Borders | 0 | - | 4.96 | 36,357 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,788 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,879 |
| Demonym of Every Country | 0 | - | 4.91 | 58,929 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,604,941 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,269 |
| 4-Letter Geography Chain #1 | 0 | - | 4.81 | 169,625 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,183 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,906 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,436 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,348 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,297 |
| Countries with Megacities | 0 | - | 4.99 | 249,081 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,945 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,353 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,205 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,102 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,581 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,535 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,110 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,547 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,227 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,184 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,451 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,367 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,491 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,837 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,056 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,972 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,458 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,146 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,462 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,524 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,051 |
| Biggest Cities in the United States | 0 | - | 4.93 | 972,236 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,886 |
| North American Sports Cities | 0 | - | 4.83 | 171,407 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,047 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,494 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,052 |
| Cities by Former Name | 0 | - | 4.84 | 91,284 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,837 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,230 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,220 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,623 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,063 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,455 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,080 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,344 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,200 |
| Countries by Capital City | 0 | - | 5.00 | 67,511 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,766 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,265 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,783 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,721 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,540 |
| Moved Capital Cities | 0 | - | 4.96 | 73,897 |
| World Capitals by Map | 0 | - | 5.00 | 284,865 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,992 |
| Random Capital to Country | 0 | - | 4.99 | 2,584,526 |
| Random Country to Capital | 0 | - | 4.98 | 915,206 |
| Capitals Starting With H | 0 | - | 4.90 | 91,741 |
| Capitals Starting With K | 0 | - | 4.85 | 75,951 |
| Capitals Starting With L | 0 | - | 4.81 | 87,161 |
| Capitals Starting With M | 0 | - | 4.93 | 106,606 |
| Capitals Starting With P | 0 | - | 4.88 | 77,457 |
| Capitals Starting With R | 0 | - | 4.87 | 81,240 |
| Capitals Starting With S | 0 | - | 4.89 | 85,085 |
| Capitals Starting With T | 0 | - | 4.84 | 75,572 |
| Capitals Starting With W | 0 | - | 4.87 | 90,863 |
| Capitals Starting With A | 0 | - | 4.97 | 126,962 |
| Capitals Starting With B | 0 | - | 4.89 | 117,648 |
| Capitals Starting With D | 0 | - | 4.93 | 95,718 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,976 |
| Countries by National Anthem | 0 | - | 4.92 | 71,124 |
| Countries by Official Language | 0 | - | 4.95 | 194,046 |
| NATO Countries | 0 | - | 4.98 | 278,191 |
| EU Countries Quiz | 0 | - | 4.99 | 271,737 |
| Recently Independent Countries | 0 | - | 4.98 | 158,402 |
| French-Speaking Countries | 0 | - | 4.85 | 269,779 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,562 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,715 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,988 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,468 |
| Countries in their Native Language | 0 | - | 4.99 | 197,664 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,511 |
| Independence from Whom | 0 | - | 4.99 | 210,852 |
| Subdivisions by Country | 0 | - | 4.86 | 50,207 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,365 |
| German-Speaking Countries | 0 | - | 4.91 | 143,997 |
| Megadiverse Countries | 0 | - | 4.96 | 134,554 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,622 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,867 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,054 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,084 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,661 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,157 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,427 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,096 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,209 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 112,111 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,341 |
| Olympic Host Countries | 0 | - | 4.98 | 199,594 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,288 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,638 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,185 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,952 |
| Anagram Chain - Countries | 0 | - | 4.98 | 115,853 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,352 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,481 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 306,205 |
