| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,221 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,620 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,585,545 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,114 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,724 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,099 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,062 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 213,636 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 136,360 |
| Random Countries by Borders | 0 | - | 4.99 | 81,620 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,114 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,095 |
| Random Country to Capital | 0 | - | 4.98 | 911,051 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,599 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,008 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 115,974 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,158 |
| Countries with Four Letters | 0 | - | 4.99 | 418,289 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,109 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 74,863 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,881,618 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,301 |
| Landlocked Countries | 0 | - | 4.99 | 413,186 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 93,290 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,777 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 710,990 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,226 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,353 |
| Country Chain | 0 | - | 4.96 | 215,629 |
| Countries by Emojis | 0 | - | 4.99 | 235,987 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,064 |
| Islands by Country #1 | 0 | - | 4.87 | 174,435 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,872 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,240 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,309 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,685 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,677 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,158 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,237 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,394 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,671 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,292 |
| Name a Valid Country #7 | 0 | - | 4.91 | 126,363 |
| Name a Valid Country #8 | 0 | - | 4.85 | 95,900 |
| Random Cities on a World Map | 0 | - | 4.25 | 44,381 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,392 |
| Himalayan Countries | 0 | - | 4.95 | 135,167 |
| Andean Countries | 0 | - | 4.94 | 82,737 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,153 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,084 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,823 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,518 |
| Danube Countries | 0 | - | 4.97 | 71,035 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,698 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,489 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,368 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,287 |
| European Landlocked Countries | 0 | - | 4.99 | 145,702 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,116 |
| Countries with the Most Species | 0 | - | 4.99 | 95,216 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,268 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,190 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,352 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,367 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,407 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,929 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,542 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,905 |
| Countries in the Alps | 0 | - | 4.87 | 116,749 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,516 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,162 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,976 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,371 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,102 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,959 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,513 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,718 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,918 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,009 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,179 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,014 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,401 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,705 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,713 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,964 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,597 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,297 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,223 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,723 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,021 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,480 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,568 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,306 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,793 |
| Largest Countries By Category | 0 | - | 4.97 | 156,681 |
| Countries by Countries | 0 | - | 4.96 | 62,214 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,596 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,599 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,393 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,667 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,194 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,305 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,348 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,949 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,311 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 68,163 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,049 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 77,077 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,713 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,566 |
| Name a Valid Island Country | 0 | - | 4.96 | 113,986 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,367 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,974 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,389 |
| Island Countries | 0 | - | 4.99 | 707,410 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,016 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,849 |
| Northernmost Countries | 0 | - | 4.99 | 357,459 |
| Countries of South America | 0 | - | 5.00 | 913,969 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,341 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,585 |
| "Land" Countries | 0 | - | 4.98 | 333,515 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,607 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 100,758 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,196 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,411 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,965 |
| Countries with Megacities | 0 | - | 4.99 | 246,446 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,880 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,778 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,342 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,736 |
| Countries by Official Language | 0 | - | 4.95 | 192,672 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,995 |
| Countries in their Native Language | 0 | - | 4.99 | 196,539 |
| Independence from Whom | 0 | - | 4.99 | 209,570 |
| Subdivisions by Country | 0 | - | 4.86 | 50,043 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,655 |
| Megadiverse Countries | 0 | - | 4.97 | 133,852 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,714 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,899 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,398 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,847 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,585 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,966 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,696 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,104 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,197 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,729 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,465 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,387 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,461 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,477 |
| Random General Knowledge - Countries | 0 | - | 4.33 | 88,306 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,640 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,997 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,428 |
| World Map Quiz | 0 | - | 4.81 | 63,427 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,410 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,270 |
| Countries by Founding Story | 0 | - | 4.95 | 76,479 |
| Countries by Road Signs | 0 | - | 4.98 | 53,050 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,234 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,924 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,890 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,597 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,810 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,010 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,215 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,906 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,293 |
| Widest Countries East to West | 0 | - | 4.92 | 128,560 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,204 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,150 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,540 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,655 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,567 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,988 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,042 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,557 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 334,494 |
| Countries with Double Letters | 0 | - | 4.97 | 93,288 |
| Countries that End in N | 0 | - | 4.94 | 156,348 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,573 |
| Countries with Six Letters | 0 | - | 4.93 | 210,262 |
| Countries with W | 0 | - | 4.97 | 158,158 |
| Countries with Z | 0 | - | 4.98 | 287,742 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,475 |
| Countries That End in U | 0 | - | 4.95 | 119,477 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,442 |
| Countries that End in O | 0 | - | 4.92 | 158,507 |
| Countries that End in R | 0 | - | 4.87 | 118,239 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,835 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,926 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,241 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,429 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,774 |
| Countries That End in Y | 0 | - | 4.90 | 185,176 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,267 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,599 |
