| Landlocked Countries | 0 | - | 4.99 | 421,175 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,516,331 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,049 |
| Himalayan Countries | 0 | - | 4.95 | 138,361 |
| Andean Countries | 0 | - | 4.93 | 84,399 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,617 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,540 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,246 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,650 |
| Danube Countries | 0 | - | 4.97 | 71,914 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,894 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,320 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,132 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,590 |
| European Landlocked Countries | 0 | - | 4.99 | 147,042 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,479 |
| Countries with the Most Species | 0 | - | 4.99 | 103,156 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,637 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,539 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,682 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,481 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,161 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,574 |
| Countries in the Alps | 0 | - | 4.87 | 118,068 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,500 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,873 |
| 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 | 116,403 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,880 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,564 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,419 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,122 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,767 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,596 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,458 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,137 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,399 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,431 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,705 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,229 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,739 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,915 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,525 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,867 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,153 |
| Largest Countries By Category | 0 | - | 4.97 | 158,048 |
| Countries by Countries | 0 | - | 4.96 | 63,100 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,567 |
| 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 | 88,584 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,772,595 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,874 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,283 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,704 |
| Island Countries | 0 | - | 4.99 | 710,732 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,773 |
| Northernmost Countries | 0 | - | 4.99 | 361,584 |
| Countries of South America | 0 | - | 5.00 | 926,112 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,334 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,874,468 |
| "Land" Countries | 0 | - | 4.98 | 337,067 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,679 |
| Countries with Megacities | 0 | - | 4.99 | 263,989 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,517 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,357 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,788 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,411 |
| Countries by Official Language | 0 | - | 4.95 | 195,078 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,151 |
| Countries in their Native Language | 0 | - | 4.99 | 198,724 |
| Independence from Whom | 0 | - | 4.99 | 211,895 |
| Subdivisions by Country | 0 | - | 4.86 | 50,390 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,586 |
| Megadiverse Countries | 0 | - | 4.96 | 134,945 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,935 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,300 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,878 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,079 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,008 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,549 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,347 |
| 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 | 77,510 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,832 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,144 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,918 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,301 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,447 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,522 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,929 |
| World Map Quiz | 0 | - | 4.81 | 64,976 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,808 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,270 |
| Countries by Founding Story | 0 | - | 4.95 | 77,296 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,926 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,179 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,906 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,982 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,810 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,931 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,233 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,397 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,509 |
| Widest Countries East to West | 0 | - | 4.92 | 129,569 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,432 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,276 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,089 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,707 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,492 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,771 |
| 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 | 95,998 |
| Countries that End in N | 0 | - | 4.95 | 170,895 |
| Countries with Five Letters | 0 | - | 4.96 | 282,033 |
| Countries with Six Letters | 0 | - | 4.94 | 213,313 |
| Countries with W | 0 | - | 4.97 | 160,152 |
| Countries with Z | 0 | - | 4.98 | 291,191 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,512 |
| Countries That End in U | 0 | - | 4.95 | 120,750 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,283 |
| Countries that End in O | 0 | - | 4.92 | 159,445 |
| Countries that End in R | 0 | - | 4.87 | 118,910 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,673 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,886 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,573 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,387 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,308 |
| Countries That End in Y | 0 | - | 4.91 | 185,815 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,773 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,741 |
| Countries that End in I | 0 | - | 4.94 | 135,040 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,942 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,759 |
| Countries That End in NIA | 0 | - | 4.92 | 109,711 |
| Countries That End in BIA | 0 | - | 4.93 | 149,105 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,004 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,333 |
| Countries That End in RIA | 0 | - | 4.93 | 126,744 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,924 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,335 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,563 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,957 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,529 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,520 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,935 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,417 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,437 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,369 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,171 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,865 |
| Countries that End in L | 0 | - | 4.94 | 156,754 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,255 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,239 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,957 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,894 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,925 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,583 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,542 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,901 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,429 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,301 |
| 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 | 1,446,834 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,630 |
| One Border Countries | 0 | - | 4.98 | 469,219 |
| Top Producing Countries | 0 | - | 4.63 | 116,233 |
| ISO Country Codes | 0 | - | 4.48 | 90,939 |
| Countries on the Equator | 0 | - | 4.63 | 140,783 |
| Members of the Arab League | 0 | - | 4.77 | 75,623 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,883 |
| Separatist Movements | 0 | - | 4.45 | 45,884 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,211 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,812 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,251 |
| Westernmost Countries | 0 | - | 4.42 | 62,352 |
| 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 | 43,974 |
| 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 | 60,914 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,938 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,418 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,692 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,570 |
| Flyover Countries | 0 | - | 4.69 | 50,803 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 73,914 |
