| Landlocked Countries Quiz | 0 | - | 4.99 | 383,617 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,385,266 |
| Top Olive Oil Producing Countries | 0 | - | 4.91 | 78,531 |
| Top Rice-Producing Countries | 0 | - | 4.95 | 95,033 |
| Top Chocolate Growing Countries | 0 | - | 4.84 | 44,600 |
| Sahara Desert Countries | 0 | - | 4.97 | 145,945 |
| Himalayan Countries | 0 | - | 4.94 | 122,588 |
| Andean Countries | 0 | - | 4.93 | 68,913 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 56,853 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 113,344 |
| Coffee Producing Countries | 0 | - | 4.83 | 60,068 |
| Countries with Shrinking Populations | 0 | - | 4.92 | 59,428 |
| Danube Countries | 0 | - | 4.97 | 60,925 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 96,981 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,967 |
| Countries with the Best Passports | 0 | - | 4.84 | 80,988 |
| Countries with the Worst Passports | 0 | - | 4.91 | 72,043 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 138,496 |
| European Landlocked Countries | 0 | - | 4.99 | 141,096 |
| Partially Recognized Countries | 0 | - | 4.98 | 98,258 |
| Countries with the Most Species | 0 | - | 4.99 | 92,402 |
| Countries 197 to 205 | 0 | - | 4.87 | 63,636 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 46,730 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,830 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 52,653 |
| Countries that Use the Peso | 0 | - | 4.89 | 56,438 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,998 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 53,740 |
| Countries in the Alps | 0 | - | 4.86 | 110,777 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 90,808 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 97,980 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 75,457 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 83,831 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 110,718 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,018 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 95,103 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,925 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,020 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,873 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 72,776 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 51,307 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 39,131 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,226 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,908 |
| Countries with the Most Grassland | 0 | - | 4.93 | 73,623 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 109,186 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,879 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,814 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 222,478 |
| World Countries - Blind Typing | 0 | - | 5.00 | 95,350 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,173 |
| Largest Countries By Category | 0 | - | 4.97 | 151,529 |
| Countries by Countries | 0 | - | 4.96 | 58,531 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,411,804 |
| Country Flags with the Most White | 0 | - | 4.87 | 132,193 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,697 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,354 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 84,029 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,480,406 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 360,502 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 382,786 |
| Island Countries Quiz | 0 | - | 4.99 | 691,396 |
| Biggest Countries by Area | 0 | - | 5.00 | 990,749 |
| Northernmost Countries | 0 | - | 4.99 | 342,970 |
| Countries of South America | 0 | - | 5.00 | 864,213 |
| Countries of Oceania | 0 | - | 5.00 | 977,496 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,733,969 |
| Countries with the Most Cultivated Land | 0 | - | 4.77 | 33,255 |
| Countries Producing the Most Bananas | 0 | - | 4.56 | 37,620 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,261,190 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 159,349 |
| Countries with Megacities | 0 | - | 4.99 | 218,565 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 187,055 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 106,396 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,933 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 73,434 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 270,414 |
| Countries by Official Language | 0 | - | 4.95 | 184,345 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 282,445 |
| Countries in their Native Language | 0 | - | 4.98 | 189,080 |
| Independence from Whom | 0 | - | 4.99 | 200,143 |
| Subdivisions by Country | 0 | - | 4.85 | 48,574 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 123,944 |
| Megadiverse Countries | 0 | - | 4.96 | 130,576 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 122,385 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,012 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 49,359 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 155,658 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 59,543 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 86,978 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 149,375 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 80,595 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,450 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 67,786 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,935 |
| Countries Furthest from the United States | 0 | - | 4.95 | 86,037 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,287 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 72,230 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,733 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 98,472 |
| World Map Quiz | 0 | - | 4.88 | 57,852 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 135,600 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 86,868 |
| Southernmost Countries of the World | 0 | - | 4.99 | 218,842 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 98,883 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 116,735 |
| Countries With the Most Languages | 0 | - | 4.89 | 189,572 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 92,617 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 88,701 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 93,714 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,446 |
| Tallest Countries North to South | 0 | - | 4.85 | 115,723 |
| Widest Countries East to West | 0 | - | 4.92 | 124,869 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,219 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 180,409 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,518 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 90,392 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 125,563 |
| Countries with the Most Desert | 0 | - | 4.93 | 123,476 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,072 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,603 |
| Countries with Double Letters | 0 | - | 4.97 | 82,967 |
| Countries that End in N | 0 | - | 4.94 | 146,770 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 246,810 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 201,139 |
| Countries with W | 0 | - | 4.97 | 150,272 |
| Countries with Z | 0 | - | 4.98 | 276,712 |
| Countries with Letters Missing | 0 | - | 4.97 | 176,961 |
| Countries That End in U | 0 | - | 4.95 | 114,689 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 101,100 |
| Countries that End in O | 0 | - | 4.92 | 154,698 |
| Countries that End in R | 0 | - | 4.84 | 100,160 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,105 |
| Countries Ending in "IA" | 0 | - | 4.99 | 198,591 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 163,594 |
| Countries by Last Two Letters | 0 | - | 4.87 | 122,053 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 135,844 |
| Countries That End in Y | 0 | - | 4.91 | 182,297 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 189,561 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 128,083 |
| Countries that End in I | 0 | - | 4.92 | 117,574 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 158,673 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 92,356 |
| Countries That End in NIA | 0 | - | 4.92 | 105,267 |
| Countries That End in BIA | 0 | - | 4.92 | 142,936 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 161,493 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,970 |
| Countries That End in RIA | 0 | - | 4.89 | 105,630 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 106,116 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 215,794 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 127,526 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 119,417 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 85,262 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 71,368 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,800 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 98,334 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 120,229 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,424 |
| Countries with the Word "And" | 0 | - | 4.98 | 90,101 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 48,037 |
| Countries that End in L | 0 | - | 4.94 | 151,988 |
| "Land" Countries | 0 | - | 4.98 | 300,014 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 197,850 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,999 |
| City to Country Quiz #1 | 0 | - | 4.96 | 150,760 |
| City to Country Quiz #3 | 0 | - | 4.87 | 104,852 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 75,731 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 220,074 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 192,978 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 122,452 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 155,327 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 216,649 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.97 | 147,581 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,963 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,072 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,926 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,895 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,383,026 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 365,120 |
| One Border Countries | 0 | - | 4.98 | 445,546 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,636,444 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 82,093 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 257,808 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 116,117 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,944 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 88,398 |
| Countries by National Anthem | 0 | - | 4.92 | 69,958 |
| NATO Countries Quiz | 0 | - | 4.98 | 258,080 |
| EU Countries Quiz | 0 | - | 4.99 | 254,820 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 152,389 |
| French-Speaking Countries | 0 | - | 4.85 | 258,251 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 80,840 |
| Countries That Use the Euro | 0 | - | 4.93 | 76,218 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 267,617 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 249,022 |
| German-Speaking Countries | 0 | - | 4.89 | 121,228 |
| Countries with Wild Tigers | 0 | - | 4.97 | 131,791 |
| Countries with Wild Penguins | 0 | - | 4.93 | 95,778 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 150,091 |
| Top Five Countries by Religion | 0 | - | 4.91 | 157,561 |
