| Landlocked Countries | 0 | - | 4.99 | 421,192 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,517,906 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,053 |
| Himalayan Countries | 0 | - | 4.95 | 138,366 |
| Andean Countries | 0 | - | 4.93 | 84,400 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,620 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,545 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,250 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,652 |
| Danube Countries | 0 | - | 4.97 | 71,917 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,896 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,321 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,133 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,594 |
| European Landlocked Countries | 0 | - | 4.99 | 147,045 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,481 |
| Countries with the Most Species | 0 | - | 4.99 | 103,157 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,639 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,540 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,682 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,482 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,164 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,574 |
| Countries in the Alps | 0 | - | 4.87 | 118,071 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,507 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,875 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,592 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,516 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,404 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,882 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,565 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,421 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,122 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,770 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,600 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,460 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,138 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,400 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,436 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,706 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,232 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,969 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,919 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,530 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,869 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,154 |
| Largest Countries By Category | 0 | - | 4.97 | 158,056 |
| Countries by Countries | 0 | - | 4.96 | 63,102 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,573 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,247 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,538 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,586 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,772,742 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,891 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,291 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,714 |
| Island Countries | 0 | - | 4.99 | 710,739 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,793 |
| Northernmost Countries | 0 | - | 4.99 | 361,592 |
| Countries of South America | 0 | - | 5.00 | 926,134 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,354 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,874,522 |
| "Land" Countries | 0 | - | 4.98 | 337,075 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,681 |
| Countries with Megacities | 0 | - | 4.99 | 264,010 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,520 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,357 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,794 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,415 |
| Countries by Official Language | 0 | - | 4.95 | 195,081 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,155 |
| Countries in their Native Language | 0 | - | 4.99 | 198,742 |
| Independence from Whom | 0 | - | 4.99 | 211,896 |
| Subdivisions by Country | 0 | - | 4.86 | 50,390 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,586 |
| Megadiverse Countries | 0 | - | 4.96 | 134,946 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,941 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,305 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,879 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,079 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,009 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,551 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,349 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,983 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,602 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,054 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,514 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,834 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,145 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,919 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,302 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,448 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,580 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,937 |
| World Map Quiz | 0 | - | 4.81 | 64,981 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,826 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,270 |
| Countries by Founding Story | 0 | - | 4.95 | 77,297 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,929 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,181 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,908 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,989 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,811 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,933 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,239 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,398 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,511 |
| Widest Countries East to West | 0 | - | 4.92 | 129,572 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,433 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,276 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,092 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,710 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,495 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,773 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,338 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,782 |
| Countries with Double Letters | 0 | - | 4.96 | 96,004 |
| Countries that End in N | 0 | - | 4.95 | 170,900 |
| Countries with Five Letters | 0 | - | 4.96 | 282,041 |
| Countries with Six Letters | 0 | - | 4.94 | 213,316 |
| Countries with W | 0 | - | 4.97 | 160,152 |
| Countries with Z | 0 | - | 4.98 | 291,197 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,517 |
| Countries That End in U | 0 | - | 4.95 | 120,750 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,286 |
| Countries that End in O | 0 | - | 4.92 | 159,445 |
| Countries that End in R | 0 | - | 4.87 | 118,911 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,673 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,891 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,576 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,388 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,309 |
| Countries That End in Y | 0 | - | 4.91 | 185,816 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,778 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,744 |
| Countries that End in I | 0 | - | 4.94 | 135,040 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,944 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,759 |
| Countries That End in NIA | 0 | - | 4.92 | 109,712 |
| Countries That End in BIA | 0 | - | 4.93 | 149,108 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,007 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,334 |
| Countries That End in RIA | 0 | - | 4.93 | 126,746 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,924 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,340 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,567 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,962 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,532 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,523 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,935 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,418 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,441 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,370 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,174 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,866 |
| Countries that End in L | 0 | - | 4.94 | 156,756 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,265 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,240 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,957 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,896 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,925 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,585 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,544 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,901 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,431 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,302 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,796 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,055 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,675 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,817 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,860 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,640 |
| One Border Countries | 0 | - | 4.98 | 469,252 |
| Top Producing Countries | 0 | - | 4.63 | 116,234 |
| ISO Country Codes | 0 | - | 4.48 | 90,947 |
| Countries on the Equator | 0 | - | 4.63 | 140,785 |
| Members of the Arab League | 0 | - | 4.77 | 75,623 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,884 |
| Separatist Movements | 0 | - | 4.45 | 45,884 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,213 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,812 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,253 |
| Westernmost Countries | 0 | - | 4.42 | 62,354 |
| Easternmost Countries | 0 | - | 4.75 | 62,889 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,648 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,598 |
| Indochina Countries | 0 | - | 4.74 | 66,168 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,622 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,343 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,975 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,090 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,385 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,680 |
| Countries that are the Source of Refugees | 0 | - | 4.68 | 61,114 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,939 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,420 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,693 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,571 |
| Flyover Countries | 0 | - | 4.69 | 50,803 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 73,914 |
