| Independence from Whom | 0 | - | 4.99 | 210,807 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,329 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,212 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,585 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,623 |
| National Founders | 0 | - | 4.40 | 83,738 |
| Recently Independent Countries | 0 | - | 4.98 | 158,379 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,147 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,123 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,824 |
| Countries by Former Name | 0 | - | 4.99 | 124,669 |
| Historical City to Country | 0 | - | 4.84 | 78,327 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,164,706 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,784 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,668 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,529 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,892 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,762 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,023 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,536 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,099 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,208 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,367 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,183 |
| Political Movements by Country | 0 | - | 4.46 | 72,392 |
| Landlocked Countries | 0 | - | 4.99 | 416,671 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,740,661 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,455 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,908 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,420 |
| Battle to Country | 0 | - | 4.91 | 52,911 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,852 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,834 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,793 |
| Island Countries | 0 | - | 4.99 | 708,814 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,942 |
| Himalayan Countries | 0 | - | 4.95 | 136,506 |
| Andean Countries | 0 | - | 4.95 | 83,493 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,756 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,008 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,425 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,030 |
| Danube Countries | 0 | - | 4.97 | 71,431 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,217 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,850 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,158 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,125 |
| European Landlocked Countries | 0 | - | 4.99 | 146,130 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,764 |
| Countries with the Most Species | 0 | - | 4.99 | 101,614 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,899 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,329 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,510 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,161 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,809 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,192 |
| Countries in the Alps | 0 | - | 4.86 | 117,326 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,903 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,896 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,253 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,741 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,823 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,255 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,987 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,994 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,805 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,331 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,367 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,203 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,730 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,996 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,005 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,716 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,896 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,430 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,248 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,012 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,569 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,829 |
| Largest Countries By Category | 0 | - | 4.97 | 157,256 |
| Countries by Countries | 0 | - | 4.96 | 62,593 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,934 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,486 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,872 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,081 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,085 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,355 |
| Northernmost Countries | 0 | - | 4.99 | 359,385 |
| Countries of South America | 0 | - | 5.00 | 919,690 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,680 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,858,788 |
| "Land" Countries | 0 | - | 4.98 | 334,608 |
| Countries by Independence Day | 0 | - | 4.61 | 52,671 |
| Former Countries by Capital | 0 | - | 4.45 | 127,243 |
| Former Countries | 0 | - | 4.75 | 132,968 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,432 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,704 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,174 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,079 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,768 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 119,481 |
| Communist Countries in History | 0 | - | 4.63 | 493,909 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,958 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,849 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,273 |
| Countries with Megacities | 0 | - | 4.99 | 248,944 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,129 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,544 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,484 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,501 |
| Countries by Official Language | 0 | - | 4.95 | 194,010 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,541 |
| Countries in their Native Language | 0 | - | 4.99 | 197,635 |
| Subdivisions by Country | 0 | - | 4.86 | 50,197 |
| Megadiverse Countries | 0 | - | 4.96 | 134,541 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,832 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,075 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,046 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,628 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,948 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,441 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,548 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,371 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,807 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,162 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,579 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,686 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,642 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,859 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,202 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,567 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,444 |
| World Map Quiz | 0 | - | 4.81 | 64,093 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,696 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,667 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,886 |
| Country Picture Puzzle Game #1 | 0 | - | 4.86 | 85,966 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,060 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,667 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,396 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,708 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,267 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,461 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,626 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,149 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,637 |
| Widest Countries East to West | 0 | - | 4.92 | 129,139 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,329 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,646 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,921 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,959 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,979 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,359 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,099 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,675 |
| Countries with Double Letters | 0 | - | 4.96 | 94,129 |
| Countries that End in N | 0 | - | 4.95 | 165,636 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,577 |
| Countries with Six Letters | 0 | - | 4.93 | 211,134 |
| Countries with W | 0 | - | 4.97 | 158,806 |
| Countries with Z | 0 | - | 4.98 | 288,752 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,025 |
| Countries That End in U | 0 | - | 4.95 | 119,912 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,155 |
| Countries that End in O | 0 | - | 4.92 | 158,861 |
| Countries that End in R | 0 | - | 4.87 | 118,509 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,284 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,746 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,731 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,809 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,373 |
| Countries That End in Y | 0 | - | 4.90 | 185,420 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,828 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,089 |
| Countries that End in I | 0 | - | 4.94 | 134,667 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,687 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,408 |
| Countries That End in NIA | 0 | - | 4.92 | 109,295 |
| Countries That End in BIA | 0 | - | 4.93 | 148,564 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,423 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,768 |
| Countries That End in RIA | 0 | - | 4.93 | 126,345 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,329 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,075 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,867 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,204 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,781 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,141 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,435 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,939 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,832 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,997 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,201 |
| Countries that End in L | 0 | - | 4.94 | 156,289 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,881 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,067 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,711 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,562 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,613 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,317 |
