| Countries by Former Name | 0 | - | 4.99 | 113,832 |
| Independence from Whom | 0 | - | 4.99 | 185,530 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,414 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,130 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,850 |
| Cities by Former Name | 0 | - | 4.86 | 71,358 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,683 |
| Countries of the World in 1900 | 0 | - | 4.88 | 66,326 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 170,553 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 128,028 |
| Historical City to Country | 0 | - | 4.82 | 72,299 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,921,831 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 323,692 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,070,701 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,595 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,610 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,138 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,670 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,939 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,939 |
| Members of the Arab League | 0 | - | 4.85 | 61,865 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,879 |
| Himalayan Countries | 0 | - | 4.94 | 104,747 |
| Andean Countries | 0 | - | 4.91 | 58,069 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,026 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,314 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,677 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,022 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,282 |
| Danube Countries | 0 | - | 4.97 | 56,629 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,665 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,832 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,176 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,332 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,505 |
| European Landlocked Countries | 0 | - | 4.99 | 115,497 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,317 |
| Countries with the Most Species | 0 | - | 4.99 | 89,523 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,328 |
| Countries Settled by Vikings | 0 | - | 4.93 | 111,423 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,670 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,996 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,244 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,401 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,679 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,113 |
| Countries in the Alps | 0 | - | 4.84 | 102,602 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,279 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,058 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,563 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,219 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,929 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,532 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,595 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,124 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,297 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,629 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,397 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,576 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,655 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,455 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,937 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,443 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,965 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,314 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,362 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,107 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,811 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,260 |
| Largest Countries By Category | 0 | - | 4.96 | 144,846 |
| Countries by Countries | 0 | - | 4.96 | 54,618 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,382 |
| Warsaw Pact Countries | 0 | - | 4.84 | 80,162 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,686 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 49,529 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 86,993 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,163 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,066 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,429 |
| Island Countries Quiz | 0 | - | 4.99 | 660,450 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,871 |
| Northernmost Countries | 0 | - | 4.99 | 327,113 |
| Countries of South America | 0 | - | 5.00 | 792,970 |
| Countries of Oceania | 0 | - | 5.00 | 893,348 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,150,990 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,572,051 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 162,077 |
| Countries by Independence Day Quiz | 0 | - | 4.63 | 44,469 |
| Former Countries by Capital | 0 | - | 4.44 | 103,825 |
| Former Countries | 0 | - | 4.72 | 124,581 |
| Guerrillas by Country | 0 | - | 4.45 | 38,503 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 68,949 |
| Battle to Country | 0 | - | 4.92 | 35,402 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,815 |
| Countries with Megacities | 0 | - | 4.99 | 197,113 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,450 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,886 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,300 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,851 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,820 |
| Countries by Official Language | 0 | - | 4.96 | 172,059 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,183 |
| Countries in their Native Language | 0 | - | 4.98 | 178,269 |
| Subdivisions by Country | 0 | - | 4.82 | 46,430 |
| Megadiverse Countries | 0 | - | 4.96 | 125,297 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,361 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,660 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,372 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,551 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,098 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,026 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,340 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,792 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,582 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,986 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,951 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,528 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,251 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 82,159 |
| World Map Quiz | 0 | - | 4.90 | 49,361 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,402 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,469 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,731 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,907 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 108,007 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,573 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,300 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,591 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,291 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,944 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,438 |
| Widest Countries East to West | 0 | - | 4.93 | 119,356 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,819 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,990 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,647 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 85,578 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,919 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,157 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,455 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.82 | 32,046 |
| Countries with Double Letters | 0 | - | 4.96 | 68,406 |
| Countries that End in N | 0 | - | 4.94 | 132,744 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,787 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 187,071 |
| Countries with W | 0 | - | 4.96 | 122,741 |
| Countries with Z | 0 | - | 4.98 | 244,458 |
| Countries with Letters Missing | 0 | - | 4.97 | 165,384 |
| Countries That End in U | 0 | - | 4.95 | 107,582 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,522 |
| Countries that End in O | 0 | - | 4.92 | 146,948 |
| Countries that End in R | 0 | - | 4.85 | 96,485 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,243 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,374 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,782 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,229 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,293 |
| Countries That End in Y | 0 | - | 4.90 | 161,643 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,998 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,763 |
| Countries that End in I | 0 | - | 4.92 | 114,501 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,550 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,278 |
| Countries That End in NIA | 0 | - | 4.93 | 100,844 |
| Countries That End in BIA | 0 | - | 4.91 | 126,094 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,253 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,757 |
| Countries That End in RIA | 0 | - | 4.90 | 100,968 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,453 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,751 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,695 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,578 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,392 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,237 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,729 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,832 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,742 |
| Countries that End in L | 0 | - | 4.95 | 134,282 |
| "Land" Countries | 0 | - | 4.98 | 289,218 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,845 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,179 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,288 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,185 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,613 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,891 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,282 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,478 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,063 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,893 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,866 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,891 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,070 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,312 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,052 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,311,327 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,603 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,063,866 |
| One Border Countries | 0 | - | 4.98 | 410,114 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 93,559 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,394,065 |
| Countries Unconquered since 1850 | 0 | - | 4.38 | 62,314 |
