| Independence from Whom | 0 | - | 4.99 | 213,359 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,626 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,913 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,258 |
| Countries by Founding Story | 0 | - | 4.95 | 77,897 |
| Landlocked Countries | 0 | - | 4.99 | 427,072 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,953,925 |
| Recently Independent Countries | 0 | - | 4.98 | 160,486 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,143 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,026 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,402 |
| Countries by Former Name | 0 | - | 4.99 | 125,952 |
| Historical City to Country | 0 | - | 4.85 | 79,093 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,830 |
| Himalayan Countries | 0 | - | 4.93 | 140,746 |
| Andean Countries | 0 | - | 4.94 | 85,757 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,881 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,438 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,436 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,659 |
| Danube Countries | 0 | - | 4.97 | 72,524 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,761 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,955 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,398 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,873 |
| European Landlocked Countries | 0 | - | 4.99 | 147,720 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,506 |
| Countries with the Most Species | 0 | - | 4.99 | 103,633 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,607 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,805 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,941 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,909 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,666 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,117 |
| Countries in the Alps | 0 | - | 4.87 | 118,939 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,936 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,083 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,047 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,151 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,103 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,370 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,563 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,980 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,501 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,297 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,945 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,818 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,659 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,906 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,006 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,106 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,708 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,304 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,815 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,210 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,442 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,598 |
| Largest Countries By Category | 0 | - | 4.97 | 159,052 |
| Countries by Countries | 0 | - | 4.97 | 63,789 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,404 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,442 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,701 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,347 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,536 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,206 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,811,040 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,577 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,993 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,599 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,271 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,565 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,915 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,853 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,155 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,720 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,687 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,729 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,966 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,410 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,992 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,240 |
| Island Countries | 0 | - | 4.99 | 712,929 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,935 |
| Northernmost Countries | 0 | - | 4.99 | 364,502 |
| Countries of South America | 0 | - | 5.00 | 934,001 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,115 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,892,324 |
| "Land" Countries | 0 | - | 4.98 | 338,913 |
| Former Countries by Capital | 0 | - | 4.45 | 127,880 |
| Former Countries | 0 | - | 4.77 | 134,310 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,452 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,452 |
| Countries with Megacities | 0 | - | 4.99 | 267,736 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,096 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,308 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,433 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,411 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,337 |
| Countries by Official Language | 0 | - | 4.95 | 196,177 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,888 |
| Countries in their Native Language | 0 | - | 4.99 | 199,924 |
| Subdivisions by Country | 0 | - | 4.87 | 50,661 |
| Megadiverse Countries | 0 | - | 4.96 | 148,345 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,107 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,569 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,789 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,253 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,440 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,616 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,153 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,282 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,728 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,469 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,495 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,208 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,626 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,952 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,673 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,580 |
| Battle to Country | 0 | - | 4.91 | 54,079 |
| World Map Quiz | 0 | - | 4.81 | 65,904 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,786 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,785 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,276 |
| Countries by Road Signs | 0 | - | 4.98 | 54,431 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,468 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,211 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,683 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,871 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,533 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,642 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,835 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,755 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,919 |
| Widest Countries East to West | 0 | - | 4.92 | 130,824 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,626 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,370 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,552 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,144 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,084 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,595 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,529 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,918 |
| Countries with Double Letters | 0 | - | 4.96 | 97,555 |
| Countries that End in N | 0 | - | 4.95 | 172,576 |
| Countries with Five Letters | 0 | - | 4.96 | 284,555 |
| Countries with Six Letters | 0 | - | 4.94 | 214,894 |
| Countries with W | 0 | - | 4.96 | 161,276 |
| Countries with Z | 0 | - | 4.98 | 292,931 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,636 |
| Countries That End in U | 0 | - | 4.95 | 121,367 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,383 |
| Countries that End in O | 0 | - | 4.92 | 160,352 |
| Countries that End in R | 0 | - | 4.87 | 119,268 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,051 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,102 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 184,754 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,150 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,652 |
| Countries That End in Y | 0 | - | 4.91 | 186,161 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,177 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,393 |
| Countries that End in I | 0 | - | 4.94 | 135,410 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,194 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,132 |
| Countries That End in NIA | 0 | - | 4.92 | 110,145 |
| Countries That End in BIA | 0 | - | 4.93 | 149,717 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,910 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,882 |
| Countries That End in RIA | 0 | - | 4.93 | 127,133 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,526 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,892 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,354 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,817 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,371 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,903 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,434 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,594 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,032 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,722 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,884 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,578 |
| Countries that End in L | 0 | - | 4.94 | 157,232 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,496 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,374 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,869 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,148 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,530 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,622 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,282 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,510 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,393 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,163 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,310 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,291 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,968 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,871 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,346 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,744 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,890 |
