| Countries with the Most Christians | 0 | - | 4.92 | 135,185 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 82,409 |
| Catholic Countries Quiz | 0 | - | 4.81 | 208,436 |
| Countries with the Most Catholics | 0 | - | 4.89 | 103,109 |
| Orthodox Countries | 0 | - | 4.91 | 126,235 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 106,608 |
| Countries with the Most Cathedrals | 0 | - | 4.51 | 38,136 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,841,892 |
| Majority Muslim Countries | 0 | - | 4.98 | 351,953 |
| Top Five Countries by Religion | 0 | - | 4.91 | 160,132 |
| African Countries with the Most Christians | 0 | - | 4.92 | 72,574 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 389,590 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,447,319 |
| Buddhist Countries | 0 | - | 4.96 | 138,598 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,521,805 |
| Sahara Desert Countries | 0 | - | 4.97 | 149,018 |
| Himalayan Countries | 0 | - | 4.94 | 125,199 |
| Andean Countries | 0 | - | 4.93 | 70,490 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 58,029 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 115,415 |
| Coffee Producing Countries | 0 | - | 4.83 | 61,394 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 60,531 |
| Danube Countries | 0 | - | 4.97 | 61,634 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 97,980 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 82,664 |
| Countries with the Worst Passports | 0 | - | 4.92 | 75,200 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 140,656 |
| European Landlocked Countries | 0 | - | 4.99 | 142,036 |
| Partially Recognized Countries | 0 | - | 4.98 | 99,773 |
| Countries with the Most Species | 0 | - | 4.99 | 93,136 |
| Countries 197 to 205 | 0 | - | 4.87 | 64,709 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 47,055 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,142 |
| Countries that Use the Peso | 0 | - | 4.89 | 56,991 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 70,519 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 54,419 |
| Countries in the Alps | 0 | - | 4.86 | 111,931 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 91,543 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 99,371 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,024 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 84,453 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 111,629 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,603 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,098 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 50,462 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,450 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 59,461 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 51,698 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,506 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,769 |
| Arctic Ocean Countries | 0 | - | 4.94 | 76,450 |
| Countries with the Most Grassland | 0 | - | 4.93 | 74,268 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 110,760 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 65,410 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,340 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 40,514 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 225,997 |
| World Countries - Blind Typing | 0 | - | 5.00 | 97,425 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,674 |
| Largest Countries By Category | 0 | - | 4.97 | 152,414 |
| Countries by Countries | 0 | - | 4.96 | 59,116 |
| Country Flags with the Most White | 0 | - | 4.85 | 133,168 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,940 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 84,734 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 362,507 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 386,258 |
| Island Countries Quiz | 0 | - | 4.99 | 694,911 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,005,432 |
| Northernmost Countries | 0 | - | 4.99 | 344,832 |
| Countries of South America | 0 | - | 5.00 | 873,500 |
| Countries of Oceania | 0 | - | 5.00 | 988,894 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,753,789 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,283,176 |
| Battle to Country | 0 | - | 4.91 | 49,560 |
| Monarchies of Europe | 0 | - | 4.89 | 93,948 |
| Monarchies of Asia | 0 | - | 4.96 | 68,592 |
| Countries with the Most Muslims | 0 | - | 4.94 | 154,987 |
| Catholic Countries in Europe | 0 | - | 4.83 | 90,820 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 162,330 |
| Countries with Megacities | 0 | - | 4.99 | 221,849 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 189,262 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,527 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 128,634 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 74,904 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 298,373 |
| Countries by Official Language | 0 | - | 4.95 | 185,912 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 284,407 |
| Countries in their Native Language | 0 | - | 4.98 | 190,283 |
| Independence from Whom | 0 | - | 4.99 | 202,234 |
| Subdivisions by Country | 0 | - | 4.85 | 48,884 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 125,431 |
| Megadiverse Countries | 0 | - | 4.97 | 131,182 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 123,834 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,336 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,622 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 73,454 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,554 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 156,776 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,149 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 88,487 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,101 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,003 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,619 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 69,434 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,267 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,436 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,910 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 72,627 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,144 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 191,731 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 116,936 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 109,849 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 88,159 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 100,399 |
| World Map Quiz | 0 | - | 4.87 | 59,016 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 138,707 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 87,724 |
| Southernmost Countries of the World | 0 | - | 4.99 | 220,180 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 99,856 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 117,665 |
| Countries With the Most Languages | 0 | - | 4.89 | 191,721 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 96,743 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 89,486 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 94,692 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,933 |
| Tallest Countries North to South | 0 | - | 4.84 | 116,549 |
| Widest Countries East to West | 0 | - | 4.92 | 125,621 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,407 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 181,426 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,944 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 91,065 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 126,175 |
| Countries with the Most Desert | 0 | - | 4.93 | 124,054 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,261 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,803 |
| Countries with Double Letters | 0 | - | 4.97 | 84,995 |
| Countries that End in N | 0 | - | 4.94 | 148,580 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 249,053 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 202,906 |
| Countries with W | 0 | - | 4.97 | 151,902 |
| Countries with Z | 0 | - | 4.98 | 278,739 |
| Countries with Letters Missing | 0 | - | 4.97 | 178,545 |
| Countries That End in U | 0 | - | 4.95 | 115,708 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 102,624 |
| Countries that End in O | 0 | - | 4.92 | 155,464 |
| Countries that End in R | 0 | - | 4.83 | 100,630 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,573 |
| Countries Ending in "IA" | 0 | - | 4.99 | 200,050 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 164,990 |
| Countries by Last Two Letters | 0 | - | 4.88 | 131,361 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 137,198 |
| Countries That End in Y | 0 | - | 4.91 | 182,789 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 191,253 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.93 | 147,123 |
| Countries that End in I | 0 | - | 4.92 | 118,003 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 171,379 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,016 |
| Countries That End in NIA | 0 | - | 4.92 | 105,789 |
| Countries That End in BIA | 0 | - | 4.92 | 143,696 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 162,258 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 115,624 |
| Countries That End in RIA | 0 | - | 4.89 | 106,113 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 106,868 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 217,770 |
| Divided Country Name Puzzle #2 | 0 | - | 4.98 | 128,500 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 120,454 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 86,278 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 71,879 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 49,447 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 99,011 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 120,972 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,894 |
| Countries with the Word "And" | 0 | - | 4.98 | 90,955 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 48,969 |
| Countries that End in L | 0 | - | 4.94 | 152,872 |
| "Land" Countries | 0 | - | 4.98 | 301,067 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 198,785 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,194 |
| City to Country Quiz #1 | 0 | - | 4.96 | 151,376 |
| City to Country Quiz #3 | 0 | - | 4.87 | 105,447 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,160 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 221,654 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 194,253 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,223 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 158,219 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 217,966 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 148,209 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,293 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 188,583 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 122,746 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,329 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 120,601 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 85,169 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 60,281 |
| Biblical Geography | 0 | - | 4.38 | 65,938 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,392,233 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 367,094 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,662,883 |
| One Border Countries | 0 | - | 4.98 | 448,012 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 97,973 |
