| Independence from Whom | 0 | - | 4.99 | 211,926 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,611 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,556 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,365 |
| Countries by Founding Story | 0 | - | 4.95 | 77,304 |
| Landlocked Countries | 0 | - | 4.99 | 421,291 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,528,280 |
| Recently Independent Countries | 0 | - | 4.98 | 159,377 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,095 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,536 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,122 |
| Countries by Former Name | 0 | - | 4.99 | 125,236 |
| Historical City to Country | 0 | - | 4.84 | 78,598 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,119 |
| Himalayan Countries | 0 | - | 4.95 | 138,412 |
| Andean Countries | 0 | - | 4.93 | 84,430 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,644 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,592 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,276 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,674 |
| Danube Countries | 0 | - | 4.97 | 71,929 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,912 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,343 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,155 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,612 |
| European Landlocked Countries | 0 | - | 4.99 | 147,058 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,506 |
| Countries with the Most Species | 0 | - | 4.99 | 103,167 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,658 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,546 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,689 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,493 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,172 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,584 |
| Countries in the Alps | 0 | - | 4.87 | 118,090 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,605 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,902 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,602 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,528 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,415 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,891 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,577 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,433 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,134 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,780 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,611 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,470 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,153 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,407 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,446 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,726 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,241 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 61,305 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,942 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,577 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,901 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,165 |
| Largest Countries By Category | 0 | - | 4.97 | 158,083 |
| Countries by Countries | 0 | - | 4.96 | 63,116 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,589 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,252 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,540 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,368 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,913 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,600 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,773,563 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,769 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,411 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,259 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,838 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,293 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,599 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,338 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,697 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,544 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,434 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,903 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,511 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,011 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,317 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,786 |
| Island Countries | 0 | - | 4.99 | 710,778 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,966 |
| Northernmost Countries | 0 | - | 4.99 | 361,649 |
| Countries of South America | 0 | - | 5.00 | 926,286 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,537 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,874,980 |
| "Land" Countries | 0 | - | 4.98 | 337,118 |
| Former Countries by Capital | 0 | - | 4.45 | 127,535 |
| Former Countries | 0 | - | 4.75 | 133,862 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,921 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,719 |
| Countries with Megacities | 0 | - | 4.99 | 264,136 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,564 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,382 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,825 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,438 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,844 |
| Countries by Official Language | 0 | - | 4.95 | 195,108 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,183 |
| Countries in their Native Language | 0 | - | 4.99 | 198,887 |
| Subdivisions by Country | 0 | - | 4.86 | 50,397 |
| Megadiverse Countries | 0 | - | 4.96 | 134,952 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,957 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,307 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,884 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,085 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,022 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,990 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,607 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,057 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,537 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,838 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,157 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,925 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,309 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,456 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,983 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,968 |
| Battle to Country | 0 | - | 4.91 | 53,438 |
| World Map Quiz | 0 | - | 4.81 | 64,998 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,905 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,281 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,851 |
| Countries by Road Signs | 0 | - | 4.98 | 53,937 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,959 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,195 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,916 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,026 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,817 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,945 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,246 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,401 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,520 |
| Widest Countries East to West | 0 | - | 4.92 | 129,580 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,434 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,302 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,096 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,720 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,516 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,788 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,343 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,786 |
| Countries with Double Letters | 0 | - | 4.96 | 96,047 |
| Countries that End in N | 0 | - | 4.95 | 170,933 |
| Countries with Five Letters | 0 | - | 4.96 | 282,116 |
| Countries with Six Letters | 0 | - | 4.94 | 213,358 |
| Countries with W | 0 | - | 4.97 | 160,178 |
| Countries with Z | 0 | - | 4.98 | 291,239 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,546 |
| Countries That End in U | 0 | - | 4.95 | 120,765 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,312 |
| Countries that End in O | 0 | - | 4.92 | 159,453 |
| Countries that End in R | 0 | - | 4.87 | 118,920 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,680 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,920 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,594 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,400 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,315 |
| Countries That End in Y | 0 | - | 4.91 | 185,829 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,794 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,758 |
| Countries that End in I | 0 | - | 4.94 | 135,044 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,965 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,767 |
| Countries That End in NIA | 0 | - | 4.92 | 109,718 |
| Countries That End in BIA | 0 | - | 4.93 | 149,122 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,017 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,350 |
| Countries That End in RIA | 0 | - | 4.93 | 126,761 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,939 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,389 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,580 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,975 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,549 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,530 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,944 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,425 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,450 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,374 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,189 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,883 |
| Countries that End in L | 0 | - | 4.94 | 156,761 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,353 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,241 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,967 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,899 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,932 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,611 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,558 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,913 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,444 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,322 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,808 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,060 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,684 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,826 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,056 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,699 |
| One Border Countries | 0 | - | 4.98 | 469,464 |
