| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,126 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,238 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,540 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,030 |
| North Sea Countries | 0 | - | 4.92 | 87,405 |
| Black Sea Countries | 0 | - | 4.87 | 60,612 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,391 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,493 |
| Countries With No Rivers | 0 | - | 4.96 | 76,830 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,844 |
| Countries with Fjords | 0 | - | 4.94 | 100,914 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,905 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,716 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,088 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,675 |
| Megadiverse Countries | 0 | - | 4.96 | 134,904 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 115,770 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,843 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,188 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,207 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,480,478 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,423 |
| Landlocked Countries | 0 | - | 4.99 | 420,790 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,522 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,338 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,272 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,855 |
| Himalayan Countries | 0 | - | 4.95 | 138,194 |
| Andean Countries | 0 | - | 4.95 | 84,317 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,541 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,424 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,168 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,598 |
| Danube Countries | 0 | - | 4.97 | 71,861 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,833 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,264 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,027 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,486 |
| European Landlocked Countries | 0 | - | 4.99 | 147,001 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,410 |
| Countries with the Most Species | 0 | - | 4.99 | 103,123 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,567 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,521 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,457 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,132 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,525 |
| Countries in the Alps | 0 | - | 4.87 | 117,993 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,883 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,779 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,558 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,472 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,343 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,847 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,495 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,364 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,093 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,720 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,573 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,428 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,090 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,365 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,389 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,598 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,189 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,713 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,854 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,321 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,743 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,127 |
| Largest Countries By Category | 0 | - | 4.97 | 157,973 |
| Countries by Countries | 0 | - | 4.96 | 63,048 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,494 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,227 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,538 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,523 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,098 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,767 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,499 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,126 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,418 |
| Island Countries | 0 | - | 4.99 | 710,536 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,432 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,224 |
| Northernmost Countries | 0 | - | 4.99 | 361,360 |
| Countries of South America | 0 | - | 5.00 | 925,420 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,457 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,704 |
| "Land" Countries | 0 | - | 4.98 | 336,816 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,562 |
| Landforms by Country | 0 | - | 4.52 | 51,972 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,086 |
| African Great Lakes | 0 | - | 4.82 | 66,286 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,139 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,440 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,554 |
| Countries with Megacities | 0 | - | 4.99 | 263,631 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,389 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,295 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,666 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,332 |
| Countries by Official Language | 0 | - | 4.95 | 194,991 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,018 |
| Countries in their Native Language | 0 | - | 4.99 | 198,497 |
| Independence from Whom | 0 | - | 4.99 | 211,772 |
| Subdivisions by Country | 0 | - | 4.86 | 50,377 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,058 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,841 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,275 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,857 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,066 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,947 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,498 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,259 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,952 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,580 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,047 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,398 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,802 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,115 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,888 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,261 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,426 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,782 |
| World Map Quiz | 0 | - | 4.81 | 64,905 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,215 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,833 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,123 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,850 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,845 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,755 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,888 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,192 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,368 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,463 |
| Widest Countries East to West | 0 | - | 4.92 | 129,529 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,420 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,213 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,073 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,653 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,437 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,725 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,323 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,771 |
| Countries with Double Letters | 0 | - | 4.97 | 95,757 |
| Countries that End in N | 0 | - | 4.95 | 170,714 |
| Countries with Five Letters | 0 | - | 4.96 | 281,767 |
| Countries with Six Letters | 0 | - | 4.94 | 213,133 |
| Countries with W | 0 | - | 4.97 | 160,016 |
| Countries with Z | 0 | - | 4.98 | 290,972 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,367 |
| Countries That End in U | 0 | - | 4.95 | 120,663 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,162 |
| Countries that End in O | 0 | - | 4.92 | 159,384 |
| Countries that End in R | 0 | - | 4.87 | 118,863 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,633 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,759 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,421 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,293 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,914 |
| Countries That End in Y | 0 | - | 4.91 | 185,781 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,609 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,673 |
| Countries that End in I | 0 | - | 4.94 | 134,995 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,796 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,714 |
| Countries That End in NIA | 0 | - | 4.92 | 109,659 |
| Countries That End in BIA | 0 | - | 4.93 | 149,042 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,924 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,262 |
| Countries That End in RIA | 0 | - | 4.93 | 126,693 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,837 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,220 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,481 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,875 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,430 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,467 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,867 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,390 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,362 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,322 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,793 |
| Countries that End in L | 0 | - | 4.94 | 156,706 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,982 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,223 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,929 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,852 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,900 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,486 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,448 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,837 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,379 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,895 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,743 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,031 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,652 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,779 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,829,824 |
| One Border Countries | 0 | - | 4.98 | 468,759 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,624,984 |
