| Landlocked Countries | 0 | - | 4.99 | 426,938 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,945,205 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,763 |
| Himalayan Countries | 0 | - | 4.93 | 140,684 |
| Andean Countries | 0 | - | 4.94 | 85,734 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,855 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,397 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,409 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,639 |
| Danube Countries | 0 | - | 4.97 | 72,516 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,742 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,942 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,370 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,826 |
| European Landlocked Countries | 0 | - | 4.99 | 147,704 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,482 |
| Countries with the Most Species | 0 | - | 4.99 | 103,627 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,581 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,803 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,937 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,902 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,657 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,106 |
| Countries in the Alps | 0 | - | 4.87 | 118,923 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,909 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,059 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,039 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,138 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,088 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,359 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,541 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,969 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,496 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,287 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,937 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,816 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,648 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,898 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,993 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,079 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,697 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,152 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,802 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,153 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,406 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,593 |
| Largest Countries By Category | 0 | - | 4.97 | 159,030 |
| Countries by Countries | 0 | - | 4.97 | 63,776 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,385 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,439 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,698 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,195 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,810,074 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,299 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,963 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,171 |
| Island Countries | 0 | - | 4.99 | 712,879 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,793 |
| Northernmost Countries | 0 | - | 4.99 | 364,444 |
| Countries of South America | 0 | - | 5.00 | 933,798 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,857 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,958 |
| "Land" Countries | 0 | - | 4.98 | 338,858 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,416 |
| Countries with Megacities | 0 | - | 4.99 | 267,649 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,063 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,286 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,406 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,391 |
| Countries by Official Language | 0 | - | 4.95 | 196,163 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,856 |
| Countries in their Native Language | 0 | - | 4.99 | 199,904 |
| Independence from Whom | 0 | - | 4.99 | 213,326 |
| Subdivisions by Country | 0 | - | 4.87 | 50,652 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,614 |
| Megadiverse Countries | 0 | - | 4.96 | 147,995 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,078 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,569 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,777 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,246 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,412 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,910 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,237 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,606 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,143 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,280 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,705 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,462 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,487 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,198 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,618 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,942 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,139 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,639 |
| World Map Quiz | 0 | - | 4.81 | 65,874 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,722 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,776 |
| Countries by Founding Story | 0 | - | 4.95 | 77,891 |
| Countries by Road Signs | 0 | - | 4.98 | 54,421 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,437 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,196 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,663 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,840 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,521 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,631 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,824 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,746 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,905 |
| Widest Countries East to West | 0 | - | 4.92 | 130,806 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,623 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,353 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,546 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,131 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,069 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,584 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,526 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,916 |
| Countries with Double Letters | 0 | - | 4.96 | 97,516 |
| Countries that End in N | 0 | - | 4.95 | 172,538 |
| Countries with Five Letters | 0 | - | 4.96 | 284,507 |
| Countries with Six Letters | 0 | - | 4.94 | 214,859 |
| Countries with W | 0 | - | 4.96 | 161,244 |
| Countries with Z | 0 | - | 4.98 | 292,888 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,600 |
| Countries That End in U | 0 | - | 4.95 | 121,350 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,355 |
| Countries that End in O | 0 | - | 4.92 | 160,342 |
| Countries that End in R | 0 | - | 4.87 | 119,259 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,037 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,080 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 184,041 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,115 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,599 |
| Countries That End in Y | 0 | - | 4.91 | 186,155 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,114 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,380 |
| Countries that End in I | 0 | - | 4.94 | 135,398 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,145 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,122 |
| Countries That End in NIA | 0 | - | 4.92 | 110,137 |
| Countries That End in BIA | 0 | - | 4.93 | 149,699 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,890 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,867 |
| Countries That End in RIA | 0 | - | 4.93 | 127,121 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,509 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,860 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,333 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,795 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,346 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,887 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,416 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,584 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,016 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,713 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,864 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,559 |
| Countries that End in L | 0 | - | 4.94 | 157,217 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,411 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,370 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,858 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,138 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,524 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,600 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,260 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,502 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,384 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,143 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,298 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,286 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,965 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,868 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,332 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,549 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,843 |
| One Border Countries | 0 | - | 4.98 | 472,399 |
| Top Producing Countries | 0 | - | 4.63 | 116,453 |
| ISO Country Codes | 0 | - | 4.49 | 91,960 |
| Countries on the Equator | 0 | - | 4.63 | 141,296 |
| Members of the Arab League | 0 | - | 4.77 | 75,745 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 70,106 |
| Separatist Movements | 0 | - | 4.45 | 46,061 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,666 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,942 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,468 |
| Westernmost Countries | 0 | - | 4.43 | 62,563 |
| Easternmost Countries | 0 | - | 4.74 | 63,084 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,774 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 109,079 |
| Indochina Countries | 0 | - | 4.74 | 66,382 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,696 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 96,843 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 44,036 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,178 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,517 |
| Countries with More Sheep than People | 0 | - | 4.48 | 32,121 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,886 |
| Countries that are the Source of Refugees | 0 | - | 4.80 | 75,980 |
| Countries 206 to 242 | 0 | - | 4.74 | 34,098 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,731 |
| Countries with the Most Turkic People | 0 | - | 4.77 | 45,903 |
