| North Sea Countries | 0 | - | 4.92 | 87,284 |
| Black Sea Countries | 0 | - | 4.87 | 60,565 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,290 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,396 |
| Countries With No Rivers | 0 | - | 4.96 | 76,671 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,013 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,163 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,307 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,740 |
| Countries with Fjords | 0 | - | 4.94 | 100,742 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,443 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,315 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,607 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,578 |
| Megadiverse Countries | 0 | - | 4.96 | 134,726 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,689 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,193 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,775 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,821 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,293,226 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,314 |
| Landlocked Countries | 0 | - | 4.99 | 418,288 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,471 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,753,179 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,861 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,657 |
| Himalayan Countries | 0 | - | 4.94 | 137,142 |
| Andean Countries | 0 | - | 4.95 | 83,781 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,032 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,412 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,710 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,259 |
| Danube Countries | 0 | - | 4.97 | 71,586 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,455 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,990 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,529 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,589 |
| European Landlocked Countries | 0 | - | 4.99 | 146,699 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,029 |
| Countries with the Most Species | 0 | - | 4.99 | 102,825 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,171 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,402 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,559 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,263 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,935 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,313 |
| Countries in the Alps | 0 | - | 4.87 | 117,593 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,072 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,259 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,371 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,917 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,027 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,401 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,200 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,134 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,931 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,498 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,446 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,304 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,877 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,143 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,163 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,050 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,018 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,538 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,435 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,038 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,080 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,949 |
| Largest Countries By Category | 0 | - | 4.97 | 157,540 |
| Countries by Countries | 0 | - | 4.96 | 62,783 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,264 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,990 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,623 |
| Seas on the World Map | 0 | - | 4.96 | 135,088 |
| Seas of the World | 0 | - | 5.00 | 156,245 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,635 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,408 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,439 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,790 |
| Island Countries | 0 | - | 4.99 | 709,503 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,401 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,404 |
| Northernmost Countries | 0 | - | 4.99 | 360,199 |
| Countries of South America | 0 | - | 5.00 | 922,156 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,032 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,864,653 |
| "Land" Countries | 0 | - | 4.98 | 335,661 |
| Biggest City by River | 0 | - | 4.41 | 52,814 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,483 |
| Landforms by Country | 0 | - | 4.52 | 51,953 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,019 |
| African Great Lakes | 0 | - | 4.82 | 65,979 |
| Seas of Europe | 0 | - | 4.37 | 84,559 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,472 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,509 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,799 |
| Countries with Megacities | 0 | - | 4.99 | 251,338 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,656 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,866 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,954 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,847 |
| Countries by Official Language | 0 | - | 4.95 | 194,531 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,377 |
| Countries in their Native Language | 0 | - | 4.99 | 198,088 |
| Independence from Whom | 0 | - | 4.99 | 211,191 |
| Subdivisions by Country | 0 | - | 4.86 | 50,262 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,610 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,239 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,154 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,720 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,000 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,649 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,334 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,884 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,791 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,458 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,962 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,827 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,674 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,946 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,748 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,105 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,297 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,032 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,970 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,389 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,870 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,581 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,176 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,460 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,635 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,778 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,230 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,233 |
| Widest Countries East to West | 0 | - | 4.92 | 129,317 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,372 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,888 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,977 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,473 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,153 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,491 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,216 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,714 |
| Countries with Double Letters | 0 | - | 4.97 | 94,990 |
| Countries that End in N | 0 | - | 4.95 | 169,751 |
| Countries with Five Letters | 0 | - | 4.96 | 279,390 |
| Countries with Six Letters | 0 | - | 4.94 | 212,353 |
| Countries with W | 0 | - | 4.97 | 159,441 |
| Countries with Z | 0 | - | 4.98 | 289,682 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,645 |
| Countries That End in U | 0 | - | 4.95 | 120,371 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,671 |
| Countries that End in O | 0 | - | 4.92 | 159,162 |
| Countries that End in R | 0 | - | 4.87 | 118,703 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,481 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,214 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,048 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,047 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,630 |
| Countries That End in Y | 0 | - | 4.90 | 185,618 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,152 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,351 |
| Countries that End in I | 0 | - | 4.94 | 134,833 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,999 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,547 |
| Countries That End in NIA | 0 | - | 4.92 | 109,482 |
| Countries That End in BIA | 0 | - | 4.93 | 148,793 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,652 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,003 |
| Countries That End in RIA | 0 | - | 4.93 | 126,495 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,583 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,537 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,138 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,484 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,046 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,284 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,635 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,186 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,068 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,170 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,472 |
| Countries that End in L | 0 | - | 4.94 | 156,502 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,791 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,144 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,805 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,684 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,730 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,671 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,069 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,558 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,035 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,525 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,518 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,929 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,583 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,627 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,820,473 |
| One Border Countries | 0 | - | 4.98 | 467,362 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,612,385 |
