| Countries With No Rivers | 0 | - | 4.96 | 76,145 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,461 |
| Countries with Fjords | 0 | - | 4.93 | 100,373 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,932 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,362 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,157 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,387 |
| Megadiverse Countries | 0 | - | 4.96 | 134,478 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,796 |
| North Sea Countries | 0 | - | 4.92 | 86,714 |
| Black Sea Countries | 0 | - | 4.87 | 60,389 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,103 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,180 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,005 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,695 |
| African Great Lakes | 0 | - | 4.82 | 65,542 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,927 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,566 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,630 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,081,539 |
| Landlocked Countries | 0 | - | 4.99 | 415,638 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,373 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,733,042 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,660 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,041 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,642 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,419 |
| Himalayan Countries | 0 | - | 4.95 | 136,075 |
| Andean Countries | 0 | - | 4.95 | 83,223 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,539 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,703 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,228 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,870 |
| Danube Countries | 0 | - | 4.97 | 71,288 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,043 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,741 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,924 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,867 |
| European Landlocked Countries | 0 | - | 4.99 | 145,997 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,579 |
| Countries with the Most Species | 0 | - | 4.99 | 95,360 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,704 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,279 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,448 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,083 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,735 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,103 |
| Countries in the Alps | 0 | - | 4.86 | 117,165 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,789 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,650 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,175 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,611 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,415 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,165 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,835 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,913 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,714 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,229 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,285 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,155 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,641 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,904 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,916 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,523 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,816 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,362 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,075 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,427 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,283 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,747 |
| Largest Countries By Category | 0 | - | 4.97 | 157,081 |
| Countries by Countries | 0 | - | 4.96 | 62,468 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,988 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,786 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,350 |
| European Countries with One Border | 0 | - | 4.97 | 181,963 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,850 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,569 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,066 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,948 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,942 |
| Island Countries | 0 | - | 4.99 | 708,442 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,883 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,110 |
| Northernmost Countries | 0 | - | 4.99 | 358,852 |
| Countries of South America | 0 | - | 5.00 | 918,259 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,823 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,855,298 |
| "Land" Countries | 0 | - | 4.98 | 334,166 |
| Countries That Border Russia | 0 | - | 4.98 | 459,957 |
| Countries Bordering France | 0 | - | 4.83 | 400,744 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,690 |
| Biggest City by River | 0 | - | 4.41 | 52,732 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,379 |
| Landforms by Country | 0 | - | 4.52 | 51,931 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,005 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,546 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,650 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,261 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,810 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,191 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,957 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,389 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,486 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,992 |
| Countries with Megacities | 0 | - | 4.99 | 248,378 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,882 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,398 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,271 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,337 |
| Capitals by River | 0 | - | 4.55 | 48,258 |
| Countries by Official Language | 0 | - | 4.95 | 193,292 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,852 |
| Countries in their Native Language | 0 | - | 4.99 | 197,107 |
| Independence from Whom | 0 | - | 4.99 | 210,233 |
| Subdivisions by Country | 0 | - | 4.86 | 50,155 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,119 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,268 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,029 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,562 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,919 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,918 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,149 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,392 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,471 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,313 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,790 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,995 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,532 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,638 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,600 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,812 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,135 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,622 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,844 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,560 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,283 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,432 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,147 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,349 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,537 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,094 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,560 |
| Widest Countries East to West | 0 | - | 4.92 | 129,051 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,295 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,529 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,662 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,886 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,871 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,260 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,846 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,649 |
| Countries with Double Letters | 0 | - | 4.96 | 93,745 |
| Countries that End in N | 0 | - | 4.94 | 157,183 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,112 |
| Countries with Six Letters | 0 | - | 4.93 | 210,769 |
| Countries with W | 0 | - | 4.97 | 158,461 |
| Countries with Z | 0 | - | 4.98 | 288,315 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,809 |
| Countries That End in U | 0 | - | 4.95 | 119,631 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,928 |
| Countries that End in O | 0 | - | 4.92 | 158,676 |
| Countries that End in R | 0 | - | 4.87 | 118,393 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,947 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,479 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,591 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,689 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,242 |
| Countries That End in Y | 0 | - | 4.90 | 185,303 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,662 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,949 |
| Countries that End in I | 0 | - | 4.94 | 134,565 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,535 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,329 |
| Countries That End in NIA | 0 | - | 4.92 | 109,155 |
| Countries That End in BIA | 0 | - | 4.92 | 147,917 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,298 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,666 |
| Countries That End in RIA | 0 | - | 4.93 | 126,220 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,208 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,815 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,720 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,065 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,631 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,050 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,314 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,827 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,918 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,040 |
| Countries that End in L | 0 | - | 4.94 | 156,178 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,327 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,028 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,651 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,485 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,549 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,084 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,685 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,947 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,704 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,106 |
