| Independence from Whom | 0 | - | 4.99 | 185,700 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,518 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,158 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,947 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 324,122 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,963,535 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,756 |
| Countries of the World in 1900 | 0 | - | 4.88 | 66,435 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 170,713 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 128,185 |
| Countries by Former Name | 0 | - | 4.99 | 113,906 |
| Historical City to Country | 0 | - | 4.82 | 72,338 |
| Members of the Arab League | 0 | - | 4.85 | 62,066 |
| Sahara Desert Countries | 0 | - | 4.97 | 127,031 |
| Himalayan Countries | 0 | - | 4.94 | 104,880 |
| Andean Countries | 0 | - | 4.91 | 58,156 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,120 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,382 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,734 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,051 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,314 |
| Danube Countries | 0 | - | 4.97 | 56,648 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,694 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,853 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,245 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,376 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,558 |
| European Landlocked Countries | 0 | - | 4.99 | 115,516 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,377 |
| Countries with the Most Species | 0 | - | 4.99 | 89,532 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,361 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,685 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,013 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,295 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,421 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,701 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,156 |
| Countries in the Alps | 0 | - | 4.84 | 102,670 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,335 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,184 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,592 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,268 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,987 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,572 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,638 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,148 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,326 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,657 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,439 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,599 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,672 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,506 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,981 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,483 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 98,099 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,346 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,391 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,375 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,931 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,285 |
| Largest Countries By Category | 0 | - | 4.96 | 144,930 |
| Countries by Countries | 0 | - | 4.96 | 54,653 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,075,026 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,492 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,708 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,222 |
| Most Populous Countries by Year | 0 | - | 4.81 | 93,792 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,656 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,655 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,179 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,694 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,973 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,994 |
| Countries Settled by Vikings | 0 | - | 4.93 | 111,498 |
| Warsaw Pact Countries | 0 | - | 4.84 | 80,187 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 49,679 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 87,077 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,245 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 355,711 |
| Island Countries Quiz | 0 | - | 4.99 | 660,800 |
| Biggest Countries by Area | 0 | - | 5.00 | 933,581 |
| Northernmost Countries | 0 | - | 4.99 | 327,309 |
| Countries of South America | 0 | - | 5.00 | 793,901 |
| Countries of Oceania | 0 | - | 5.00 | 894,289 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,155,097 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,574,054 |
| Former Countries by Capital | 0 | - | 4.44 | 103,869 |
| Former Countries | 0 | - | 4.72 | 124,626 |
| Guerrillas by Country | 0 | - | 4.45 | 38,525 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,006 |
| Countries with Megacities | 0 | - | 4.99 | 197,408 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,674 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,019 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,493 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,985 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,093 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 162,148 |
| Countries by Official Language | 0 | - | 4.96 | 172,570 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,378 |
| Countries in their Native Language | 0 | - | 4.98 | 178,371 |
| Subdivisions by Country | 0 | - | 4.82 | 46,446 |
| Megadiverse Countries | 0 | - | 4.96 | 125,338 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,467 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,706 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,389 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,613 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,143 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,056 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,357 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,850 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,618 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,022 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,970 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,554 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,288 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 82,357 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 69,015 |
| Battle to Country | 0 | - | 4.92 | 35,467 |
| World Map Quiz | 0 | - | 4.90 | 49,460 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,637 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,522 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,897 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,006 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 108,109 |
| Countries With the Most Languages | 0 | - | 4.91 | 173,797 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,368 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,661 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,369 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 54,009 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,486 |
| Widest Countries East to West | 0 | - | 4.93 | 119,415 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,829 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,075 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,678 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 85,628 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,394 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,217 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,475 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.82 | 32,065 |
| Countries with Double Letters | 0 | - | 4.96 | 68,509 |
| Countries that End in N | 0 | - | 4.93 | 132,845 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,903 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 187,180 |
| Countries with W | 0 | - | 4.97 | 122,812 |
| Countries with Z | 0 | - | 4.98 | 244,573 |
| Countries with Letters Missing | 0 | - | 4.97 | 166,687 |
| Countries That End in U | 0 | - | 4.95 | 107,615 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,621 |
| Countries that End in O | 0 | - | 4.92 | 146,984 |
| Countries that End in R | 0 | - | 4.85 | 96,512 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,272 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,489 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,856 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,270 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,352 |
| Countries That End in Y | 0 | - | 4.90 | 161,670 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 161,090 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,825 |
| Countries that End in I | 0 | - | 4.92 | 114,524 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,627 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,324 |
| Countries That End in NIA | 0 | - | 4.93 | 100,891 |
| Countries That End in BIA | 0 | - | 4.91 | 126,146 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,323 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,813 |
| Countries That End in RIA | 0 | - | 4.90 | 101,024 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,513 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,951 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,786 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,683 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,481 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,297 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,792 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,870 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,822 |
| Countries that End in L | 0 | - | 4.95 | 134,337 |
| "Land" Countries | 0 | - | 4.98 | 289,315 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,942 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,189 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,331 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,227 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,664 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 208,009 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,494 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,540 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,151 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 193,993 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,930 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,923 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,098 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,354 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,095 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,312,079 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,773 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,066,327 |
| One Border Countries | 0 | - | 4.98 | 410,343 |
| Countries Unconquered since 1850 | 0 | - | 4.38 | 62,338 |
| Longest Uninterrupted Democracies | 0 | - | 4.07 | 31,676 |
| Most Recent Country To ... | 0 | - | 4.34 | 51,610 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 93,653 |
