| Countries in World War I | 0 | - | 4.88 | 226,092 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,224 |
| Battle to Country | 0 | - | 4.91 | 52,436 |
| Countries in World War II | 0 | - | 4.53 | 903,349 |
| Independence from Whom | 0 | - | 4.99 | 209,455 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,581 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,588 |
| Recently Independent Countries | 0 | - | 4.98 | 157,861 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,303 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,867 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,566 |
| Countries by Former Name | 0 | - | 4.99 | 124,147 |
| Historical City to Country | 0 | - | 4.84 | 78,081 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,850,574 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,035 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,144 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,179 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,499 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,478 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,712 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,090 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,751 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,241 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,239 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,795 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,596 |
| Landlocked Countries | 0 | - | 4.99 | 412,867 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,693 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,458 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,873 |
| Orthodox Countries | 0 | - | 4.91 | 130,247 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,333 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,913 |
| Monarchies of Europe | 0 | - | 4.90 | 97,202 |
| Monarchies of Asia | 0 | - | 4.97 | 70,537 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,377 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,465 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,005 |
| Important Cities in WWII | 0 | - | 4.42 | 92,808 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,825 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,993 |
| Island Countries | 0 | - | 4.99 | 707,231 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,226 |
| Himalayan Countries | 0 | - | 4.95 | 135,047 |
| Andean Countries | 0 | - | 4.94 | 82,660 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,080 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,982 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,753 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,462 |
| Danube Countries | 0 | - | 4.97 | 70,992 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,635 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,453 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,287 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,193 |
| European Landlocked Countries | 0 | - | 4.99 | 145,666 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,052 |
| Countries with the Most Species | 0 | - | 4.99 | 95,186 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,189 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,174 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,333 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,908 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,510 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,865 |
| Countries in the Alps | 0 | - | 4.87 | 116,680 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,468 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,079 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,940 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,320 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,067 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,935 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,472 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,683 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,471 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,966 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,165 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,995 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,362 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,670 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,672 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,858 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,567 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,199 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,664 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,825 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,361 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,538 |
| Largest Countries By Category | 0 | - | 4.97 | 156,609 |
| Countries by Countries | 0 | - | 4.96 | 62,164 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,004 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,210 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,932 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,651 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,323 |
| Northernmost Countries | 0 | - | 4.99 | 357,239 |
| Countries of South America | 0 | - | 5.00 | 913,358 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,583 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,131 |
| "Land" Countries | 0 | - | 4.98 | 333,410 |
| Countries by Independence Day | 0 | - | 4.56 | 52,583 |
| Former Countries by Capital | 0 | - | 4.45 | 126,957 |
| Former Countries | 0 | - | 4.75 | 132,586 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,665 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,078 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,287 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,152 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 90,999 |
| Communist Countries in History | 0 | - | 4.63 | 492,078 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,161 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,021 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,446 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,456 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,038 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,855 |
| Countries with Megacities | 0 | - | 4.99 | 246,171 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,776 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,732 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,241 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,665 |
| Countries by Official Language | 0 | - | 4.95 | 192,582 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,861 |
| Countries in their Native Language | 0 | - | 4.99 | 196,465 |
| Subdivisions by Country | 0 | - | 4.86 | 50,034 |
| Megadiverse Countries | 0 | - | 4.97 | 133,829 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,646 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,876 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,372 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,836 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,540 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,059 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,176 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,713 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,371 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,361 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,426 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,442 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,603 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,978 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,337 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,195 |
| World Map Quiz | 0 | - | 4.81 | 63,353 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,200 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,219 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,149 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,875 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,849 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,501 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,765 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,959 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,169 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,876 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,251 |
| Widest Countries East to West | 0 | - | 4.92 | 128,520 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,073 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,519 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,621 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,516 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,945 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,031 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,552 |
| Political Movements by Country | 0 | - | 4.46 | 72,224 |
| Countries with Double Letters | 0 | - | 4.97 | 93,213 |
| Countries that End in N | 0 | - | 4.94 | 156,282 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,480 |
| Countries with Six Letters | 0 | - | 4.93 | 210,180 |
| Countries with W | 0 | - | 4.97 | 158,093 |
| Countries with Z | 0 | - | 4.98 | 287,352 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,426 |
| Countries That End in U | 0 | - | 4.95 | 119,445 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,333 |
| Countries that End in O | 0 | - | 4.92 | 158,474 |
| Countries that End in R | 0 | - | 4.86 | 118,202 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,807 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,856 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,180 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,377 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,567 |
| Countries That End in Y | 0 | - | 4.90 | 185,149 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,172 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,544 |
| Countries that End in I | 0 | - | 4.94 | 134,300 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,011 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,140 |
| Countries That End in NIA | 0 | - | 4.92 | 108,929 |
| Countries That End in BIA | 0 | - | 4.92 | 147,609 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 165,968 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,404 |
| Countries That End in RIA | 0 | - | 4.93 | 126,010 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,918 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 224,964 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,429 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,802 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,237 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,869 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,024 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,549 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,386 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,767 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,684 |
