| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,418 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,363 |
| Countries With No Rivers | 0 | - | 4.96 | 76,743 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,783 |
| Countries with Fjords | 0 | - | 4.94 | 100,833 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,652 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,577 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,632 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,001 |
| North Sea Countries | 0 | - | 4.92 | 87,350 |
| Black Sea Countries | 0 | - | 4.87 | 60,585 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,346 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,444 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,207 |
| Megadiverse Countries | 0 | - | 4.96 | 134,815 |
| African Great Lakes | 0 | - | 4.82 | 66,130 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,737 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,105 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,134 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,329 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,415 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,385,851 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,498 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,170 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,213 |
| Landlocked Countries | 0 | - | 4.99 | 419,619 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,761,286 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,436 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,425 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,981 |
| European Countries with One Border | 0 | - | 4.97 | 182,638 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,452 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,742 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,582 |
| Biggest City by River | 0 | - | 4.41 | 52,835 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,522 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,795 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,596 |
| Island Countries | 0 | - | 4.99 | 710,049 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,276 |
| Himalayan Countries | 0 | - | 4.95 | 137,718 |
| Andean Countries | 0 | - | 4.95 | 84,076 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,317 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,839 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,947 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,432 |
| Danube Countries | 0 | - | 4.97 | 71,729 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,653 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,124 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,770 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,854 |
| European Landlocked Countries | 0 | - | 4.99 | 146,854 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,223 |
| Countries with the Most Species | 0 | - | 4.99 | 102,992 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,385 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,452 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,614 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,362 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,038 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,429 |
| Countries in the Alps | 0 | - | 4.87 | 117,803 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,210 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,514 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,463 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,190 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,182 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,768 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,364 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,256 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,015 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,620 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,519 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,367 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,984 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,253 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,271 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,322 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,106 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,614 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,641 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,683 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,413 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,035 |
| Largest Countries By Category | 0 | - | 4.97 | 157,769 |
| Countries by Countries | 0 | - | 4.96 | 62,917 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,275 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,398 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,808 |
| Northernmost Countries | 0 | - | 4.99 | 360,805 |
| Landforms by Country | 0 | - | 4.52 | 51,966 |
| Countries of South America | 0 | - | 5.00 | 923,897 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,448 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,868,770 |
| "Land" Countries | 0 | - | 4.98 | 335,958 |
| Countries That Border Russia | 0 | - | 4.98 | 461,410 |
| Countries Bordering France | 0 | - | 4.83 | 402,210 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,993 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,057 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,197 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,069 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,973 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,649 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,084 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,373 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,329 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,975 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,222 |
| Countries with Megacities | 0 | - | 4.99 | 262,198 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,067 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,103 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,369 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,137 |
| Capitals by River | 0 | - | 4.55 | 48,301 |
| Countries by Official Language | 0 | - | 4.95 | 194,773 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,713 |
| Countries in their Native Language | 0 | - | 4.99 | 198,319 |
| Independence from Whom | 0 | - | 4.99 | 211,491 |
| Subdivisions by Country | 0 | - | 4.86 | 50,317 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,836 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,646 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,215 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,791 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,035 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,079 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,795 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,422 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,067 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,884 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,524 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,011 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,144 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,752 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,030 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,823 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,190 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,367 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,106 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,642 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,010 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,736 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,542 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,603 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,755 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,892 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,307 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,346 |
| Widest Countries East to West | 0 | - | 4.92 | 129,437 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,402 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,045 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,022 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,572 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,307 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,623 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,271 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,739 |
| Countries with Double Letters | 0 | - | 4.97 | 95,209 |
| Countries that End in N | 0 | - | 4.95 | 170,210 |
| Countries with Five Letters | 0 | - | 4.96 | 280,886 |
| Countries with Six Letters | 0 | - | 4.94 | 212,648 |
| Countries with W | 0 | - | 4.97 | 159,602 |
| Countries with Z | 0 | - | 4.98 | 290,188 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,848 |
| Countries That End in U | 0 | - | 4.95 | 120,449 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,863 |
| Countries that End in O | 0 | - | 4.92 | 159,240 |
| Countries that End in R | 0 | - | 4.87 | 118,761 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,538 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,457 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,202 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,144 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,740 |
| Countries That End in Y | 0 | - | 4.91 | 185,675 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,373 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,507 |
| Countries that End in I | 0 | - | 4.94 | 134,905 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,376 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,615 |
| Countries That End in NIA | 0 | - | 4.92 | 109,558 |
| Countries That End in BIA | 0 | - | 4.93 | 148,906 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,803 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,127 |
| Countries That End in RIA | 0 | - | 4.93 | 126,582 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,714 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,894 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,322 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,700 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,227 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,377 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,732 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,304 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,233 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,629 |
| Countries that End in L | 0 | - | 4.94 | 156,586 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,348 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,167 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,875 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,772 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,819 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,916 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,277 |
