| Landlocked Countries | 0 | - | 4.99 | 422,664 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,637,319 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,865 |
| Himalayan Countries | 0 | - | 4.95 | 139,036 |
| Andean Countries | 0 | - | 4.93 | 84,809 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,035 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,113 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,616 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,930 |
| Danube Countries | 0 | - | 4.97 | 72,100 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,130 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,501 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,457 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,950 |
| European Landlocked Countries | 0 | - | 4.99 | 147,235 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,777 |
| Countries with the Most Species | 0 | - | 4.99 | 103,311 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,899 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,633 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,752 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,599 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,321 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,744 |
| Countries in the Alps | 0 | - | 4.87 | 118,318 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,561 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,197 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,722 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,678 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,588 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,001 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,761 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,572 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,228 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,925 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,691 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,575 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,302 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,545 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,611 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,070 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,375 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,522 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,211 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,318 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,338 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,290 |
| Largest Countries By Category | 0 | - | 4.97 | 158,351 |
| Countries by Countries | 0 | - | 4.96 | 63,325 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,779 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,311 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,585 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,755 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,783,596 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,230 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,712 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,759 |
| Island Countries | 0 | - | 4.99 | 711,284 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,743 |
| Northernmost Countries | 0 | - | 4.99 | 362,300 |
| Countries of South America | 0 | - | 5.00 | 928,329 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,173 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,879,441 |
| "Land" Countries | 0 | - | 4.98 | 337,548 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,104 |
| Countries with Megacities | 0 | - | 4.99 | 265,048 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,911 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,588 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,176 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,661 |
| Countries by Official Language | 0 | - | 4.95 | 195,390 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,559 |
| Countries in their Native Language | 0 | - | 4.99 | 199,173 |
| Independence from Whom | 0 | - | 4.99 | 212,265 |
| Subdivisions by Country | 0 | - | 4.87 | 50,465 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,855 |
| Megadiverse Countries | 0 | - | 4.96 | 135,074 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,212 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,391 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,273 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,131 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,219 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,639 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,569 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,238 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,695 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,170 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,831 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,930 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,246 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,004 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,396 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,529 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,385,390 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,408 |
| World Map Quiz | 0 | - | 4.81 | 65,186 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,645 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,413 |
| Countries by Founding Story | 0 | - | 4.95 | 77,434 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,228 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,356 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,066 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,432 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,969 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,074 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,360 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,482 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,619 |
| Widest Countries East to West | 0 | - | 4.92 | 129,717 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,473 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,463 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,147 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,815 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,650 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,938 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,398 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,814 |
| Countries with Double Letters | 0 | - | 4.96 | 96,389 |
| Countries that End in N | 0 | - | 4.95 | 171,274 |
| Countries with Five Letters | 0 | - | 4.96 | 282,764 |
| Countries with Six Letters | 0 | - | 4.94 | 213,715 |
| Countries with W | 0 | - | 4.97 | 160,445 |
| Countries with Z | 0 | - | 4.98 | 291,630 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,806 |
| Countries That End in U | 0 | - | 4.95 | 120,903 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,570 |
| Countries that End in O | 0 | - | 4.92 | 159,559 |
| Countries that End in R | 0 | - | 4.87 | 119,003 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,766 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,238 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,767 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,533 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,456 |
| Countries That End in Y | 0 | - | 4.91 | 185,920 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,013 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,932 |
| Countries that End in I | 0 | - | 4.94 | 135,135 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,192 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,859 |
| Countries That End in NIA | 0 | - | 4.92 | 109,837 |
| Countries That End in BIA | 0 | - | 4.93 | 149,272 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,177 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,481 |
| Countries That End in RIA | 0 | - | 4.93 | 126,858 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,075 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,795 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,790 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,224 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,771 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,617 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,080 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,461 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,588 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,466 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,361 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,059 |
| Countries that End in L | 0 | - | 4.94 | 156,890 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,097 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,286 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,070 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,995 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,041 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,883 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,752 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,200 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,907 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,558 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,928 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,127 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,725 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,910 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,297 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,248 |
| One Border Countries | 0 | - | 4.98 | 470,242 |
| Top Producing Countries | 0 | - | 4.63 | 116,282 |
| ISO Country Codes | 0 | - | 4.49 | 91,407 |
| Countries on the Equator | 0 | - | 4.63 | 141,041 |
| Members of the Arab League | 0 | - | 4.77 | 75,657 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,948 |
| Separatist Movements | 0 | - | 4.45 | 45,923 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,333 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,848 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,311 |
| Westernmost Countries | 0 | - | 4.43 | 62,460 |
| Easternmost Countries | 0 | - | 4.75 | 62,994 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,689 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,735 |
| Indochina Countries | 0 | - | 4.74 | 66,240 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,652 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,395 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,993 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,127 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,431 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,744 |
| Countries that are the Source of Refugees | 0 | - | 4.80 | 73,415 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,981 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,503 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,752 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,645 |
| Flyover Countries | 0 | - | 4.69 | 50,875 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 74,057 |
