| Countries of the World Quiz | 0 | - | 5.00 | 47,737,909 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 126,402 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,608 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,346 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,750 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,441 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 136,489 |
| Countries with the Most Airports | 0 | - | 4.96 | 99,880 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,049 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 122,676 |
| Landlocked Countries | 0 | - | 4.99 | 423,888 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,136 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,545 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,448 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,433 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,658 |
| Coldest Countries | 0 | - | 4.97 | 138,973 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,855 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,359 |
| Countries with the Most Nobel Prizes | 0 | - | 4.87 | 90,763 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 82,942 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,561 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,378 |
| Himalayan Countries | 0 | - | 4.94 | 139,551 |
| Andean Countries | 0 | - | 4.94 | 85,075 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,255 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,476 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,818 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,130 |
| Danube Countries | 0 | - | 4.97 | 72,215 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,314 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,632 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,718 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,227 |
| European Landlocked Countries | 0 | - | 4.99 | 147,388 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,991 |
| Countries with the Most Species | 0 | - | 4.99 | 103,426 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,118 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,683 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,796 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,704 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,442 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,855 |
| Countries in the Alps | 0 | - | 4.87 | 118,501 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,096 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,466 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,814 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,817 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,751 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,098 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,927 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,676 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,305 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,023 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,765 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,633 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,393 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,640 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,728 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,388 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,476 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,273 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,369 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,945 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,677 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,384 |
| Largest Countries By Category | 0 | - | 4.97 | 158,555 |
| Countries by Countries | 0 | - | 4.96 | 63,446 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,020 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,350 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,913 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,303 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,125 |
| Island Countries | 0 | - | 4.99 | 711,800 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,523 |
| Northernmost Countries | 0 | - | 4.99 | 363,112 |
| Countries of South America | 0 | - | 5.00 | 930,032 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,368 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,595 |
| "Land" Countries | 0 | - | 4.98 | 337,900 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,084 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,678 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,845 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,886 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,240 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,646 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,763 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 273,820 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,754 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,893 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,407 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,858 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 62,029 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,457 |
| Countries with Megacities | 0 | - | 4.99 | 265,903 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,252 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,757 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,508 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,857 |
| Countries by Official Language | 0 | - | 4.95 | 195,656 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,134 |
| Countries in their Native Language | 0 | - | 4.99 | 199,428 |
| Independence from Whom | 0 | - | 4.99 | 212,581 |
| Subdivisions by Country | 0 | - | 4.87 | 50,538 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,088 |
| Megadiverse Countries | 0 | - | 4.96 | 135,159 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,451 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,464 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,349 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,165 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,379 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,704 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,757 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,471 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,749 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,208 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,102 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,274 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,333 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,063 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,479 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,603 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,862 |
| World Map Quiz | 0 | - | 4.81 | 65,387 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,533 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,704 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,696 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,346 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,983 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,208 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,328 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,541 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,591 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,217 |
| Widest Countries East to West | 0 | - | 4.92 | 130,210 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,533 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,034 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,442 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,934 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,813 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,123 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,448 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,854 |
| Airlines by Country | 0 | - | 4.52 | 135,693 |
| Countries with Double Letters | 0 | - | 4.96 | 96,695 |
| Countries that End in N | 0 | - | 4.95 | 171,576 |
| Countries with Five Letters | 0 | - | 4.96 | 283,231 |
| Countries with Six Letters | 0 | - | 4.94 | 214,037 |
| Countries with W | 0 | - | 4.96 | 160,649 |
| Countries with Z | 0 | - | 4.98 | 291,985 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,018 |
| Countries That End in U | 0 | - | 4.95 | 121,031 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,805 |
| Countries that End in O | 0 | - | 4.92 | 159,678 |
| Countries that End in R | 0 | - | 4.87 | 119,081 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,835 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,477 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,941 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,655 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,584 |
| Countries That End in Y | 0 | - | 4.91 | 186,001 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,198 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,084 |
| Countries that End in I | 0 | - | 4.94 | 135,221 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,387 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,940 |
| Countries That End in NIA | 0 | - | 4.92 | 109,928 |
| Countries That End in BIA | 0 | - | 4.93 | 149,408 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,341 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,635 |
| Countries That End in RIA | 0 | - | 4.93 | 126,947 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,223 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,125 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,964 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,405 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,944 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,695 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,197 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,495 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,729 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,551 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 54,213 |
| Countries that End in L | 0 | - | 4.94 | 157,000 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,757 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,309 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,158 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,089 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,134 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,129 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,928 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,302 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,063 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,739 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,061 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,175 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,761 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,124 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,842,275 |
| One Border Countries | 0 | - | 4.98 | 470,996 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,643,403 |
