| Countries With No Rivers | 0 | - | 4.96 | 76,750 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,787 |
| Countries with Fjords | 0 | - | 4.94 | 100,840 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,430 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,655 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,365 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,638 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,002 |
| North Sea Countries | 0 | - | 4.92 | 87,353 |
| Black Sea Countries | 0 | - | 4.87 | 60,588 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,350 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,446 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,207 |
| Megadiverse Countries | 0 | - | 4.96 | 134,821 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,598 |
| African Great Lakes | 0 | - | 4.82 | 66,143 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,743 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,115 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,080 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,142 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,393,929 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,501 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,185 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,217 |
| Landlocked Countries | 0 | - | 4.99 | 419,697 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,761,919 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,460 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,438 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,990 |
| European Countries with One Border | 0 | - | 4.97 | 182,660 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,464 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,745 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,656 |
| Biggest City by River | 0 | - | 4.41 | 52,838 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,524 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,815 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,717 |
| Island Countries | 0 | - | 4.99 | 710,081 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,311 |
| Himalayan Countries | 0 | - | 4.95 | 137,748 |
| Andean Countries | 0 | - | 4.95 | 84,092 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,328 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,863 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,960 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,440 |
| Danube Countries | 0 | - | 4.97 | 71,737 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,663 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,138 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,791 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,873 |
| European Landlocked Countries | 0 | - | 4.99 | 146,862 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,236 |
| Countries with the Most Species | 0 | - | 4.99 | 103,001 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,394 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,458 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,618 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,369 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,042 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,438 |
| Countries in the Alps | 0 | - | 4.87 | 117,814 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,215 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,532 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,468 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,278 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,204 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,780 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,372 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,261 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,022 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,625 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,371 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,992 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,259 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,276 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,347 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,116 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,622 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,659 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,728 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,438 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,042 |
| Largest Countries By Category | 0 | - | 4.97 | 157,783 |
| Countries by Countries | 0 | - | 4.96 | 62,923 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,526 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,409 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,913 |
| Northernmost Countries | 0 | - | 4.99 | 360,851 |
| Landforms by Country | 0 | - | 4.52 | 51,967 |
| Countries of South America | 0 | - | 5.00 | 923,999 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,632 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,184 |
| "Land" Countries | 0 | - | 4.98 | 335,985 |
| Countries That Border Russia | 0 | - | 4.98 | 461,462 |
| Countries Bordering France | 0 | - | 4.83 | 402,276 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,125 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,062 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,198 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,084 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,979 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,659 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,091 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,373 |
| Seas of Europe | 0 | - | 4.37 | 84,618 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,454 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,017 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,247 |
| Countries with Megacities | 0 | - | 4.99 | 262,369 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,080 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,111 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,386 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,163 |
| Capitals by River | 0 | - | 4.55 | 48,302 |
| Countries by Official Language | 0 | - | 4.95 | 194,793 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,741 |
| Countries in their Native Language | 0 | - | 4.99 | 198,334 |
| Independence from Whom | 0 | - | 4.99 | 211,531 |
| Subdivisions by Country | 0 | - | 4.86 | 50,321 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,848 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,665 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,219 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,792 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,036 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,806 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,431 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,085 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,890 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,530 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,016 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,170 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,761 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,037 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,827 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,333 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,415 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,199 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,371 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,113 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,654 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,018 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,745 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,572 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,614 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,763 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,901 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,314 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,352 |
| Widest Countries East to West | 0 | - | 4.92 | 129,440 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,405 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,056 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,028 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,579 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,316 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,629 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,274 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,741 |
| Countries with Double Letters | 0 | - | 4.97 | 95,237 |
| Countries that End in N | 0 | - | 4.95 | 170,239 |
| Countries with Five Letters | 0 | - | 4.96 | 280,965 |
| Countries with Six Letters | 0 | - | 4.94 | 212,679 |
| Countries with W | 0 | - | 4.97 | 159,629 |
| Countries with Z | 0 | - | 4.98 | 290,361 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,870 |
| Countries That End in U | 0 | - | 4.95 | 120,465 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,887 |
| Countries that End in O | 0 | - | 4.92 | 159,248 |
| Countries that End in R | 0 | - | 4.87 | 118,764 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,543 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,476 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,234 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,153 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,757 |
| Countries That End in Y | 0 | - | 4.91 | 185,681 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,406 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,517 |
| Countries that End in I | 0 | - | 4.94 | 134,909 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,502 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,618 |
| Countries That End in NIA | 0 | - | 4.92 | 109,567 |
| Countries That End in BIA | 0 | - | 4.93 | 148,918 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,814 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,138 |
| Countries That End in RIA | 0 | - | 4.93 | 126,588 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,725 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,919 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,333 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,714 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,239 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,381 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,737 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,313 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,239 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,645 |
| Countries that End in L | 0 | - | 4.94 | 156,601 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,408 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,168 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,881 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,777 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,822 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,928 |
