| North Sea Countries | 0 | - | 4.92 | 86,731 |
| Black Sea Countries | 0 | - | 4.87 | 60,398 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,112 |
| Countries With No Rivers | 0 | - | 4.96 | 76,165 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,856 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,013 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,469 |
| Countries with Fjords | 0 | - | 4.93 | 100,399 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,060 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,967 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,384 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,393 |
| Megadiverse Countries | 0 | - | 4.96 | 134,496 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,427 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,754 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,966 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,590 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,650 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,106,179 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,176 |
| Landlocked Countries | 0 | - | 4.99 | 415,896 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,373 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,735,318 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,690 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,542 |
| Himalayan Countries | 0 | - | 4.95 | 136,182 |
| Andean Countries | 0 | - | 4.95 | 83,284 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,579 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,780 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,280 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,901 |
| Danube Countries | 0 | - | 4.97 | 71,320 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,088 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,776 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,992 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,952 |
| European Landlocked Countries | 0 | - | 4.99 | 146,030 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,641 |
| Countries with the Most Species | 0 | - | 4.99 | 95,385 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,777 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,292 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,465 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,105 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,751 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,126 |
| Countries in the Alps | 0 | - | 4.86 | 117,228 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,825 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,725 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,201 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,652 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,456 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,194 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,888 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,941 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,739 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,274 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,312 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,174 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,664 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,928 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,938 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,585 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,839 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,378 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,114 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,600 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,395 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,775 |
| Largest Countries By Category | 0 | - | 4.97 | 157,148 |
| Countries by Countries | 0 | - | 4.96 | 62,512 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,025 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,816 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,384 |
| Seas on the World Map | 0 | - | 4.96 | 134,636 |
| Seas of the World | 0 | - | 5.00 | 155,192 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,579 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,306 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,468 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,140 |
| Island Countries | 0 | - | 4.99 | 708,566 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,635 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,494 |
| Northernmost Countries | 0 | - | 4.99 | 359,013 |
| Countries of South America | 0 | - | 5.00 | 918,679 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,471 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,267 |
| "Land" Countries | 0 | - | 4.98 | 334,256 |
| Biggest City by River | 0 | - | 4.41 | 52,739 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,391 |
| Landforms by Country | 0 | - | 4.52 | 51,933 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,960 |
| African Great Lakes | 0 | - | 4.82 | 65,592 |
| Seas of Europe | 0 | - | 4.37 | 84,450 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,894 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,589 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,083 |
| Countries with Megacities | 0 | - | 4.99 | 248,563 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,961 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,445 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,337 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,393 |
| Countries by Official Language | 0 | - | 4.95 | 193,738 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,230 |
| Countries in their Native Language | 0 | - | 4.99 | 197,401 |
| Independence from Whom | 0 | - | 4.99 | 210,370 |
| Subdivisions by Country | 0 | - | 4.86 | 50,167 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,197 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,608 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,051 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,582 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,930 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,955 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,171 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,455 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,500 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,325 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,795 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,059 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,548 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,649 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,618 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,823 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,159 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,310 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,644 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,918 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,595 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,310 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,507 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,182 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,377 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,565 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,107 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,584 |
| Widest Countries East to West | 0 | - | 4.92 | 129,086 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,304 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,564 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,675 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,912 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,908 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,293 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,952 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,655 |
| Countries with Double Letters | 0 | - | 4.96 | 93,807 |
| Countries that End in N | 0 | - | 4.94 | 157,237 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,194 |
| Countries with Six Letters | 0 | - | 4.93 | 210,830 |
| Countries with W | 0 | - | 4.97 | 158,494 |
| Countries with Z | 0 | - | 4.98 | 288,389 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,849 |
| Countries That End in U | 0 | - | 4.95 | 119,660 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,990 |
| Countries that End in O | 0 | - | 4.92 | 158,692 |
| Countries that End in R | 0 | - | 4.87 | 118,403 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,963 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,538 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,623 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,709 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,273 |
| Countries That End in Y | 0 | - | 4.90 | 185,315 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,721 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,991 |
| Countries that End in I | 0 | - | 4.94 | 134,588 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,579 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,349 |
| Countries That End in NIA | 0 | - | 4.92 | 109,210 |
| Countries That End in BIA | 0 | - | 4.92 | 148,433 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,329 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,700 |
| Countries That End in RIA | 0 | - | 4.93 | 126,251 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,236 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,903 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,757 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,117 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,659 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,068 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,348 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,864 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,754 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,938 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,086 |
| Countries that End in L | 0 | - | 4.94 | 156,205 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,508 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,036 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,671 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,503 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,567 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,155 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,724 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,095 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,742 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,160 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,991 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,849 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,268 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,486 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,469 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,810,695 |
| One Border Countries | 0 | - | 4.98 | 466,064 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,600,395 |
