| Landlocked Countries | 0 | - | 4.99 | 427,504 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,990,097 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,029 |
| Himalayan Countries | 0 | - | 4.93 | 140,932 |
| Andean Countries | 0 | - | 4.94 | 85,857 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,966 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,569 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,509 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,725 |
| Danube Countries | 0 | - | 4.97 | 72,582 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,843 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,999 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,491 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,962 |
| European Landlocked Countries | 0 | - | 4.99 | 147,803 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,573 |
| Countries with the Most Species | 0 | - | 4.99 | 103,658 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,677 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,824 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,962 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,943 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,697 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,154 |
| Countries in the Alps | 0 | - | 4.87 | 119,013 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,066 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,206 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,079 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,202 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,168 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,409 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,627 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,018 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,525 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,336 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,967 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,843 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,692 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,943 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,045 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,198 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,758 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,649 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,870 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,459 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,572 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,631 |
| Largest Countries By Category | 0 | - | 4.97 | 159,133 |
| Countries by Countries | 0 | - | 4.97 | 63,829 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,488 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,452 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,716 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,265 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,814,244 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,852 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,114 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,518 |
| Island Countries | 0 | - | 4.99 | 713,099 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,472 |
| Northernmost Countries | 0 | - | 4.99 | 364,726 |
| Countries of South America | 0 | - | 5.00 | 934,679 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,947 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,954 |
| "Land" Countries | 0 | - | 4.98 | 339,102 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,584 |
| Countries with Megacities | 0 | - | 4.99 | 268,024 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,227 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,375 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,555 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,481 |
| Countries by Official Language | 0 | - | 4.95 | 196,283 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,020 |
| Countries in their Native Language | 0 | - | 4.99 | 200,007 |
| Independence from Whom | 0 | - | 4.99 | 213,473 |
| Subdivisions by Country | 0 | - | 4.87 | 50,676 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,724 |
| Megadiverse Countries | 0 | - | 4.96 | 149,552 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,179 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,591 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,831 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,266 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,515 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,940 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,340 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,643 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,190 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,292 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,842 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,509 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,522 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,234 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,655 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,989 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,883 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,823 |
| World Map Quiz | 0 | - | 4.81 | 65,960 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 160,057 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,846 |
| Countries by Founding Story | 0 | - | 4.95 | 77,927 |
| Countries by Road Signs | 0 | - | 4.98 | 54,475 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,580 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,264 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,734 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,010 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,586 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,702 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,882 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,780 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,986 |
| Widest Countries East to West | 0 | - | 4.92 | 130,887 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,637 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,438 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,577 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,177 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,206 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,633 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,545 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,929 |
| Countries with Double Letters | 0 | - | 4.96 | 97,722 |
| Countries that End in N | 0 | - | 4.95 | 172,713 |
| Countries with Five Letters | 0 | - | 4.96 | 284,754 |
| Countries with Six Letters | 0 | - | 4.94 | 215,052 |
| Countries with W | 0 | - | 4.96 | 161,374 |
| Countries with Z | 0 | - | 4.98 | 293,116 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,750 |
| Countries That End in U | 0 | - | 4.95 | 121,431 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,497 |
| Countries that End in O | 0 | - | 4.92 | 160,404 |
| Countries that End in R | 0 | - | 4.87 | 119,304 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,079 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,214 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,204 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,263 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,935 |
| Countries That End in Y | 0 | - | 4.91 | 186,193 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,454 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,460 |
| Countries that End in I | 0 | - | 4.94 | 135,448 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,397 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,167 |
| Countries That End in NIA | 0 | - | 4.92 | 110,175 |
| Countries That End in BIA | 0 | - | 4.93 | 149,773 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,975 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,929 |
| Countries That End in RIA | 0 | - | 4.93 | 127,178 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,572 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,019 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,435 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,905 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,460 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,941 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,488 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,617 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,089 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,758 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,941 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,656 |
| Countries that End in L | 0 | - | 4.94 | 157,277 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,703 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,388 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,906 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,176 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,561 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,718 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,345 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,549 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,452 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,228 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,343 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,306 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,976 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,886 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,381 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,477 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,082 |
| One Border Countries | 0 | - | 4.98 | 472,716 |
| Top Producing Countries | 0 | - | 4.63 | 116,470 |
| ISO Country Codes | 0 | - | 4.49 | 92,006 |
| Countries on the Equator | 0 | - | 4.63 | 141,322 |
| Members of the Arab League | 0 | - | 4.77 | 75,751 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 70,128 |
| Separatist Movements | 0 | - | 4.45 | 46,076 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,719 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,952 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,497 |
| Westernmost Countries | 0 | - | 4.43 | 62,576 |
| Easternmost Countries | 0 | - | 4.74 | 63,098 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,789 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 109,142 |
| Indochina Countries | 0 | - | 4.74 | 66,400 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,702 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 96,867 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 44,045 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,186 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,533 |
| Countries with More Sheep than People | 0 | - | 4.48 | 32,150 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,907 |
| Countries that are the Source of Refugees | 0 | - | 4.80 | 76,136 |
| Countries 206 to 242 | 0 | - | 4.74 | 34,121 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,774 |
| Countries with the Most Turkic People | 0 | - | 4.77 | 45,923 |
