| Independence from Whom | 0 | - | 4.99 | 212,623 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,117 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,710 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,793 |
| Recently Independent Countries | 0 | - | 4.98 | 159,735 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,632 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,294 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,773 |
| Countries by Former Name | 0 | - | 4.99 | 125,590 |
| Historical City to Country | 0 | - | 4.85 | 78,777 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,745,000 |
| 2016 News Stories - Name the Country | 0 | - | 4.45 | 23,454 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,150 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,717 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,406 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,082 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,428 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,743 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,598 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,922 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,622 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,054 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,335 |
| Landlocked Countries | 0 | - | 4.99 | 423,994 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,793,132 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,095 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,325 |
| Battle to Country | 0 | - | 4.91 | 53,747 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,385 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,156 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,646 |
| Island Countries | 0 | - | 4.99 | 711,843 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,417 |
| Himalayan Countries | 0 | - | 4.94 | 139,585 |
| Andean Countries | 0 | - | 4.94 | 85,087 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,280 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,502 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,842 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,141 |
| Danube Countries | 0 | - | 4.97 | 72,224 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,336 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,650 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,743 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,248 |
| European Landlocked Countries | 0 | - | 4.99 | 147,399 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,006 |
| Countries with the Most Species | 0 | - | 4.99 | 103,434 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,130 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,690 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,800 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,710 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,443 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,858 |
| Countries in the Alps | 0 | - | 4.87 | 118,508 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,122 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,486 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,822 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,822 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,756 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,103 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,942 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,687 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,311 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,028 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,770 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,634 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,400 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,642 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,733 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,400 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,481 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,326 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,383 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,981 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,704 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,393 |
| Largest Countries By Category | 0 | - | 4.97 | 158,567 |
| Countries by Countries | 0 | - | 4.96 | 63,454 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,389,157 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,029 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,351 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,628 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,924 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,661 |
| Northernmost Countries | 0 | - | 4.99 | 363,165 |
| Countries of South America | 0 | - | 5.00 | 930,154 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,526 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,868 |
| "Land" Countries | 0 | - | 4.98 | 337,918 |
| Countries by Independence Day | 0 | - | 4.62 | 52,833 |
| Former Countries by Capital | 0 | - | 4.45 | 127,721 |
| Former Countries | 0 | - | 4.77 | 134,077 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,573 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,475 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,794 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,479 |
| Countries with Megacities | 0 | - | 4.99 | 265,942 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,275 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,764 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,530 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,876 |
| Countries by Official Language | 0 | - | 4.95 | 195,674 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,162 |
| Countries in their Native Language | 0 | - | 4.99 | 199,446 |
| Subdivisions by Country | 0 | - | 4.87 | 50,543 |
| Megadiverse Countries | 0 | - | 4.96 | 135,161 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,465 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,464 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,354 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,167 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,386 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,476 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,752 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,209 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,112 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,274 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,339 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,065 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,482 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,610 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,881 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,955 |
| World Map Quiz | 0 | - | 4.81 | 65,390 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,354 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,542 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,804 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,724 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,369 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,030 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,222 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,347 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,552 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,594 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,428 |
| Widest Countries East to West | 0 | - | 4.92 | 130,235 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,542 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,043 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,447 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,943 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,818 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,228 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,453 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,854 |
| Countries with Double Letters | 0 | - | 4.96 | 96,710 |
| Countries that End in N | 0 | - | 4.95 | 171,589 |
| Countries with Five Letters | 0 | - | 4.96 | 283,251 |
| Countries with Six Letters | 0 | - | 4.94 | 214,054 |
| Countries with W | 0 | - | 4.96 | 160,661 |
| Countries with Z | 0 | - | 4.98 | 292,011 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,029 |
| Countries That End in U | 0 | - | 4.95 | 121,038 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,823 |
| Countries that End in O | 0 | - | 4.92 | 159,681 |
| Countries that End in R | 0 | - | 4.87 | 119,081 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,837 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,493 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,952 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,668 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,592 |
| Countries That End in Y | 0 | - | 4.91 | 186,007 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,216 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,089 |
| Countries that End in I | 0 | - | 4.94 | 135,224 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,397 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,944 |
| Countries That End in NIA | 0 | - | 4.92 | 109,935 |
| Countries That End in BIA | 0 | - | 4.93 | 149,416 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,347 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,641 |
| Countries That End in RIA | 0 | - | 4.93 | 126,951 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,233 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,142 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,974 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,412 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,963 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,700 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,205 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,495 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,735 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,556 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,532 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 54,222 |
| Countries that End in L | 0 | - | 4.94 | 157,004 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,790 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,309 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,162 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,097 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,143 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,142 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,937 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,311 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,074 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,749 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,068 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,176 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,763 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,127 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,570 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,842,620 |
| One Border Countries | 0 | - | 4.98 | 471,060 |
