| Countries by Former Name | 0 | - | 4.99 | 113,780 |
| Independence from Whom | 0 | - | 4.99 | 185,416 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,354 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,100 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,802 |
| Cities by Former Name | 0 | - | 4.86 | 71,321 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,470 |
| Countries of the World in 1900 | 0 | - | 4.88 | 66,253 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 170,447 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 127,933 |
| Historical City to Country | 0 | - | 4.82 | 72,267 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,889,237 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 323,333 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,067,122 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,541 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,582 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,102 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,646 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,909 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,902 |
| Members of the Arab League | 0 | - | 4.85 | 61,734 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,788 |
| Himalayan Countries | 0 | - | 4.94 | 104,656 |
| Andean Countries | 0 | - | 4.91 | 58,025 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,953 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,269 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,615 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,008 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,254 |
| Danube Countries | 0 | - | 4.97 | 56,611 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,647 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,812 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,122 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,305 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,459 |
| European Landlocked Countries | 0 | - | 4.99 | 115,470 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,282 |
| Countries with the Most Species | 0 | - | 4.99 | 89,511 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,303 |
| Countries Settled by Vikings | 0 | - | 4.93 | 111,387 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,660 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,988 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,216 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,387 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,665 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,091 |
| Countries in the Alps | 0 | - | 4.84 | 102,567 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,241 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,957 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,531 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,187 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,891 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,493 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,567 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,107 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,288 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,602 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,380 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,552 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,639 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,424 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,904 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,412 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,881 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,296 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,339 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,862 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,729 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,247 |
| Largest Countries By Category | 0 | - | 4.96 | 144,789 |
| Countries by Countries | 0 | - | 4.96 | 54,593 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,303 |
| Warsaw Pact Countries | 0 | - | 4.84 | 80,147 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,656 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 86,932 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,121 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,909 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,162 |
| Island Countries Quiz | 0 | - | 4.99 | 660,133 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,358 |
| Northernmost Countries | 0 | - | 4.99 | 326,954 |
| Countries of South America | 0 | - | 5.00 | 792,420 |
| Countries of Oceania | 0 | - | 5.00 | 892,680 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,148,315 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,570,799 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,860 |
| Countries by Independence Day Quiz | 0 | - | 4.63 | 44,462 |
| Former Countries by Capital | 0 | - | 4.44 | 103,805 |
| Former Countries | 0 | - | 4.72 | 124,545 |
| Guerrillas by Country | 0 | - | 4.45 | 38,488 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 68,902 |
| Battle to Country | 0 | - | 4.92 | 35,371 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,728 |
| Countries with Megacities | 0 | - | 4.99 | 196,981 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,333 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,828 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,212 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,783 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,659 |
| Countries by Official Language | 0 | - | 4.96 | 171,145 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,043 |
| Countries in their Native Language | 0 | - | 4.98 | 178,203 |
| Subdivisions by Country | 0 | - | 4.82 | 46,418 |
| Megadiverse Countries | 0 | - | 4.96 | 125,266 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,282 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,633 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,362 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,506 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,065 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,005 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,323 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,749 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,564 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,961 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,935 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,505 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,230 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 82,044 |
| World Map Quiz | 0 | - | 4.90 | 49,300 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,247 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,431 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,598 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,839 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,934 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,444 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,255 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,526 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,224 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,893 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,394 |
| Widest Countries East to West | 0 | - | 4.93 | 119,311 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,806 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,937 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,627 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 85,375 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,777 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,108 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,439 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,034 |
| Countries with Double Letters | 0 | - | 4.96 | 68,261 |
| Countries that End in N | 0 | - | 4.94 | 132,603 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,626 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,934 |
| Countries with W | 0 | - | 4.96 | 122,646 |
| Countries with Z | 0 | - | 4.98 | 244,326 |
| Countries with Letters Missing | 0 | - | 4.97 | 162,448 |
| Countries That End in U | 0 | - | 4.95 | 107,516 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,396 |
| Countries that End in O | 0 | - | 4.92 | 146,888 |
| Countries that End in R | 0 | - | 4.85 | 96,455 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,212 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,267 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,721 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,187 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,252 |
| Countries That End in Y | 0 | - | 4.90 | 161,608 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,939 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,718 |
| Countries that End in I | 0 | - | 4.92 | 114,485 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,491 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,250 |
| Countries That End in NIA | 0 | - | 4.93 | 100,818 |
| Countries That End in BIA | 0 | - | 4.91 | 126,036 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,216 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,712 |
| Countries That End in RIA | 0 | - | 4.90 | 100,933 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,411 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,624 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,629 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,511 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,323 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,202 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,680 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,799 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,675 |
| Countries that End in L | 0 | - | 4.95 | 134,245 |
| "Land" Countries | 0 | - | 4.98 | 289,129 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,773 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,169 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,252 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,157 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,574 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,786 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,109 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,425 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 132,761 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,805 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,832 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,859 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,042 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,285 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,016 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,310,747 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,491 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,061,910 |
| One Border Countries | 0 | - | 4.98 | 409,928 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 93,434 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,391,520 |
| Countries Unconquered since 1850 | 0 | - | 4.38 | 62,301 |
| Longest Uninterrupted Democracies | 0 | - | 4.07 | 31,655 |
