| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,677 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,158 |
| One Border Countries | 0 | - | 4.98 | 412,737 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,430,551 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,782 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 246,814 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,370 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 96,711 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 94,217 |
| Countries by Borders #1 | 0 | - | 5.00 | 177,639 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 287,780 |
| Longest Border by Country #1 | 0 | - | 4.99 | 136,124 |
| Largest Countries with No Borders | 0 | - | 4.96 | 202,499 |
| Countries with Two Borders | 0 | - | 4.99 | 128,470 |
| Countries by Borders #2 | 0 | - | 4.96 | 119,381 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 121,022 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 120,897 |
| Largest Countries Bordering Each Other | 0 | - | 4.98 | 97,473 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.95 | 79,241 |
| Countries by Borders #3 | 0 | - | 4.98 | 90,946 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 72,923 |
| Longest Border by Country #2 | 0 | - | 4.96 | 114,007 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,370,147 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 329,749 |
| Countries with the Most Borders | 0 | - | 4.97 | 361,577 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,123,920 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,193,354 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 30,085 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 79,039 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 97,520 |
| Countries with the Most People Bordering Them | 0 | - | 4.97 | 81,710 |
| Members of the Arab League | 0 | - | 4.85 | 64,525 |
| Sahara Desert Countries | 0 | - | 4.97 | 128,865 |
| Himalayan Countries | 0 | - | 4.95 | 106,798 |
| Andean Countries | 0 | - | 4.91 | 59,401 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,460 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,233 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,599 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,517 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,820 |
| Danube Countries | 0 | - | 4.96 | 56,975 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,994 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,100 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,019 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,932 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,207 |
| European Landlocked Countries | 0 | - | 4.99 | 136,401 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,340 |
| Countries with the Most Species | 0 | - | 4.99 | 89,694 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,849 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,875 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,164 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,695 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,656 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,929 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,533 |
| Countries in the Alps | 0 | - | 4.84 | 103,292 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,914 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,356 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,953 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,003 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,472 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,978 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,126 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,489 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,519 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,071 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,829 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,804 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,860 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,184 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,344 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,911 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,370 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,663 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,731 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,379 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,116 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,573 |
| Largest Countries By Category | 0 | - | 4.97 | 145,734 |
| Countries by Countries | 0 | - | 4.96 | 55,138 |
| Five Least Guessed Countries by Continent | 0 | - | 4.97 | 81,924 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,945 |
| Countries with the Shortest Total Borders | 0 | - | 4.93 | 94,243 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 117,159 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 127,775 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.94 | 56,590 |
| Five Coldest Countries by Continent | 0 | - | 4.96 | 58,588 |
| Which Country Does Not Border... | 0 | - | 4.81 | 86,488 |
| Bordering Countries by HDI Difference | 0 | - | 4.91 | 48,031 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 70,606 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,024 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 359,112 |
| Island Countries Quiz | 0 | - | 4.99 | 664,791 |
| Biggest Countries by Area | 0 | - | 5.00 | 940,313 |
| Northernmost Countries | 0 | - | 4.99 | 329,299 |
| Countries of South America | 0 | - | 5.00 | 802,321 |
| Countries of Oceania | 0 | - | 5.00 | 904,151 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,592,786 |
| Bordering Countries by Clue #1 | 0 | - | 4.96 | 69,443 |
| Walking Across Borders with Hints #1 | 0 | - | 4.93 | 90,119 |
| Five Most Guessed Countries by Continent | 0 | - | 4.96 | 154,950 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 178,263 |
| Random Countries by Borders | 0 | - | 4.99 | 67,021 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,610 |
| Countries with Megacities | 0 | - | 4.99 | 199,797 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,396 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,996 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 97,000 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,966 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,569 |
| Countries by Official Language | 0 | - | 4.96 | 174,157 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,232 |
| Countries in their Native Language | 0 | - | 4.98 | 179,387 |
| Independence from Whom | 0 | - | 4.99 | 187,557 |
| Subdivisions by Country | 0 | - | 4.82 | 46,692 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,586 |
| Megadiverse Countries | 0 | - | 4.96 | 126,161 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,493 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,130 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,633 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,349 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,505 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,807 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,389 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,673 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,472 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,945 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,581 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,146 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,017 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,419 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,890 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,117 |
| Countries With the Most Languages | 0 | - | 4.91 | 175,744 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,043 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,421 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,487 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,544 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,046 |
| Widest Countries East to West | 0 | - | 4.93 | 120,002 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,994 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,812 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,990 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,138 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,003 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,739 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,627 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,249 |
| Countries with Double Letters | 0 | - | 4.96 | 69,972 |
| Countries that End in N | 0 | - | 4.94 | 134,194 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,547 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 188,927 |
| Countries with W | 0 | - | 4.96 | 124,178 |
| Countries with Z | 0 | - | 4.98 | 246,225 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,386 |
| Countries That End in U | 0 | - | 4.95 | 108,314 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 90,800 |
| Countries that End in O | 0 | - | 4.92 | 147,540 |
| Countries that End in R | 0 | - | 4.84 | 96,845 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,652 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,699 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 156,911 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,114 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,052 |
| Countries That End in Y | 0 | - | 4.90 | 161,996 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,070 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,548 |
| Countries that End in I | 0 | - | 4.92 | 114,851 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,609 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,956 |
| Countries That End in NIA | 0 | - | 4.93 | 101,362 |
| Countries That End in BIA | 0 | - | 4.91 | 126,735 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,275 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,391 |
| Countries That End in RIA | 0 | - | 4.90 | 101,467 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,108 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 202,947 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,741 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 111,754 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,390 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,215 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,283 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,630 |
| Countries that End in L | 0 | - | 4.95 | 135,255 |
| "Land" Countries | 0 | - | 4.98 | 291,247 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,426 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,300 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,850 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,655 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 72,167 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 209,770 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 168,831 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,208 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 134,030 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,214 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,620 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,270 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 102,777 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,837 |
