| Independence from Whom | 0 | - | 4.99 | 211,727 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,994 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,486 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,228 |
| Countries by Founding Story | 0 | - | 4.95 | 77,226 |
| Landlocked Countries | 0 | - | 4.99 | 420,577 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,463,940 |
| Recently Independent Countries | 0 | - | 4.98 | 159,257 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,928 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,260 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,860 |
| Countries by Former Name | 0 | - | 4.99 | 125,136 |
| Historical City to Country | 0 | - | 4.84 | 78,538 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,732 |
| Himalayan Countries | 0 | - | 4.95 | 138,101 |
| Andean Countries | 0 | - | 4.95 | 84,273 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,493 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,345 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,124 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,569 |
| Danube Countries | 0 | - | 4.97 | 71,836 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,803 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,243 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,980 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,434 |
| European Landlocked Countries | 0 | - | 4.99 | 146,972 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,385 |
| Countries with the Most Species | 0 | - | 4.99 | 103,096 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,535 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,508 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,660 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,448 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,117 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,508 |
| Countries in the Alps | 0 | - | 4.87 | 117,963 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,546 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,724 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,549 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,459 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,310 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,834 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,473 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,342 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,079 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,706 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,568 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,421 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,073 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,351 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,369 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,550 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,181 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,692 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,826 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,207 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,683 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,113 |
| Largest Countries By Category | 0 | - | 4.97 | 157,934 |
| Countries by Countries | 0 | - | 4.97 | 63,018 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,469 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,219 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,514 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,095 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,809 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,513 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,903 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,636 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,291 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,199 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,757 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,253 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,544 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,256 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,620 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,508 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,243 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,764 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,440 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,334 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,059 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,259 |
| Island Countries | 0 | - | 4.99 | 710,412 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,939 |
| Northernmost Countries | 0 | - | 4.99 | 361,246 |
| Countries of South America | 0 | - | 5.00 | 925,146 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,091 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,065 |
| "Land" Countries | 0 | - | 4.98 | 336,487 |
| Former Countries by Capital | 0 | - | 4.45 | 127,484 |
| Former Countries | 0 | - | 4.75 | 133,804 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,828 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,476 |
| Countries with Megacities | 0 | - | 4.99 | 263,462 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,317 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,257 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,612 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,293 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,746 |
| Countries by Official Language | 0 | - | 4.95 | 194,948 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,967 |
| Countries in their Native Language | 0 | - | 4.99 | 198,468 |
| Subdivisions by Country | 0 | - | 4.86 | 50,363 |
| Megadiverse Countries | 0 | - | 4.96 | 134,888 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,810 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,262 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,846 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,060 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,919 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,939 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,567 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,045 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,354 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,797 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,096 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,873 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,253 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,419 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,701 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,886 |
| Battle to Country | 0 | - | 4.91 | 53,353 |
| World Map Quiz | 0 | - | 4.81 | 64,878 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,434 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,200 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,777 |
| Countries by Road Signs | 0 | - | 4.98 | 53,838 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,790 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,100 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,832 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,797 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,733 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,865 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,175 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,354 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,444 |
| Widest Countries East to West | 0 | - | 4.92 | 129,509 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,417 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,171 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,065 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,643 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,418 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,710 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,312 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,764 |
| Countries with Double Letters | 0 | - | 4.97 | 95,420 |
| Countries that End in N | 0 | - | 4.95 | 170,459 |
| Countries with Five Letters | 0 | - | 4.96 | 281,430 |
| Countries with Six Letters | 0 | - | 4.94 | 212,872 |
| Countries with W | 0 | - | 4.97 | 159,750 |
| Countries with Z | 0 | - | 4.98 | 290,686 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,010 |
| Countries That End in U | 0 | - | 4.95 | 120,534 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,032 |
| Countries that End in O | 0 | - | 4.92 | 159,302 |
| Countries that End in R | 0 | - | 4.87 | 118,813 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,585 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,646 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,343 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,232 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,852 |
| Countries That End in Y | 0 | - | 4.91 | 185,734 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,547 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,633 |
| Countries that End in I | 0 | - | 4.94 | 134,963 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,748 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,677 |
| Countries That End in NIA | 0 | - | 4.92 | 109,635 |
| Countries That End in BIA | 0 | - | 4.93 | 148,995 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,893 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,220 |
| Countries That End in RIA | 0 | - | 4.93 | 126,658 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,789 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,141 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,436 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,824 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,351 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,429 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,812 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,363 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,311 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,295 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,025 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,744 |
| Countries that End in L | 0 | - | 4.94 | 156,674 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,860 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,195 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,917 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,832 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,885 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,446 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,413 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,821 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,353 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,855 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,731 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,023 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,673 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,643 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,768 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,804 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,362 |
