| Countries with Double Letters | 0 | - | 4.96 | 79,722 |
| Countries that End in N | 0 | - | 4.93 | 144,005 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 242,785 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,193 |
| Countries with W | 0 | - | 4.97 | 131,689 |
| Countries with Z | 0 | - | 4.98 | 273,265 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,019 |
| Countries That End in U | 0 | - | 4.95 | 113,139 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 98,488 |
| Countries that End in O | 0 | - | 4.92 | 152,845 |
| Countries that End in R | 0 | - | 4.84 | 99,347 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 150,974 |
| Countries Ending in "IA" | 0 | - | 4.99 | 196,021 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 162,123 |
| Countries by Last Two Letters | 0 | - | 4.89 | 120,903 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 134,430 |
| Countries That End in Y | 0 | - | 4.91 | 181,098 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 187,516 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 126,366 |
| Countries that End in I | 0 | - | 4.92 | 116,922 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 156,992 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 91,419 |
| Countries That End in NIA | 0 | - | 4.92 | 104,419 |
| Countries That End in BIA | 0 | - | 4.92 | 141,438 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 159,935 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 113,841 |
| Countries That End in RIA | 0 | - | 4.89 | 104,772 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 104,915 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 212,654 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 125,895 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 117,543 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 83,568 |
| Countries With One Word and Three A's | 0 | - | 4.93 | 47,718 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 96,786 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 118,905 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 45,642 |
| Countries with the Word "And" | 0 | - | 4.98 | 88,728 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 46,472 |
| Countries that End in L | 0 | - | 4.94 | 150,864 |
| "Land" Countries | 0 | - | 4.98 | 298,202 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,700 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 372,973 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,590,358 |
| Countries with Four Letters | 0 | - | 4.99 | 384,675 |
| Sahara Desert Countries | 0 | - | 4.98 | 141,036 |
| Himalayan Countries | 0 | - | 4.95 | 118,223 |
| Andean Countries | 0 | - | 4.92 | 66,190 |
| Countries with the Oldest Median Age | 0 | - | 4.83 | 67,291 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 54,940 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,102 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,006 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 57,708 |
| Danube Countries | 0 | - | 4.97 | 59,757 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,432 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 80,836 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,023 |
| Countries with the Worst Passports | 0 | - | 4.91 | 59,988 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 134,078 |
| European Landlocked Countries | 0 | - | 4.99 | 139,714 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,159 |
| Countries with the Most Species | 0 | - | 4.99 | 91,623 |
| Countries 197 to 205 | 0 | - | 4.87 | 61,662 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,242 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,375 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,644 |
| Countries that Use the Peso | 0 | - | 4.83 | 48,821 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,252 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,678 |
| Countries in the Alps | 0 | - | 4.86 | 108,512 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,588 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 95,674 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,550 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,459 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,282 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,009 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 93,871 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 48,984 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,318 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 57,867 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,050 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,654 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 38,520 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,284 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,007 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,620 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 106,832 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,076 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,013 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 217,538 |
| World Countries - Blind Typing | 0 | - | 5.00 | 82,474 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 44,375 |
| Largest Countries By Category | 0 | - | 4.97 | 149,906 |
| Countries by Countries | 0 | - | 4.96 | 57,687 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,330,542 |
| Country Flags with the Most White | 0 | - | 4.87 | 130,099 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,300 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 45,999 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 82,760 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,403,058 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 120,725 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 195,967 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 356,451 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 377,298 |
| Island Countries Quiz | 0 | - | 4.99 | 685,137 |
| Biggest Countries by Area | 0 | - | 5.00 | 978,745 |
| Northernmost Countries | 0 | - | 4.99 | 339,736 |
| Countries of South America | 0 | - | 5.00 | 847,460 |
| Countries of Oceania | 0 | - | 5.00 | 958,004 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,695,643 |
| Countries with J | 0 | - | 4.55 | 177,829 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 70,612 |
| Countries by Consonants | 0 | - | 4.43 | 75,556 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,223,072 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 155,015 |
| Countries with Megacities | 0 | - | 4.99 | 213,715 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 183,988 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 104,750 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 105,206 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 71,454 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 265,772 |
| Countries by Official Language | 0 | - | 4.95 | 181,801 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 278,735 |
| Countries in their Native Language | 0 | - | 4.98 | 186,771 |
| Independence from Whom | 0 | - | 4.99 | 197,258 |
| Subdivisions by Country | 0 | - | 4.86 | 48,122 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 121,755 |
| Megadiverse Countries | 0 | - | 4.96 | 129,748 |
| Countries With the Most English Speakers | 0 | - | 4.90 | 116,181 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,108 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 49,057 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 153,810 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 58,751 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 84,791 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,244 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 79,522 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,075 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 64,393 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,095 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,254 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,602 |
| Straight Shot to the Arctic Circle | 0 | - | 4.90 | 71,485 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 67,888 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 95,333 |
| World Map Quiz | 0 | - | 4.88 | 56,111 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 130,658 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 85,661 |
| Countries by Founding Story | 0 | - | 4.94 | 71,709 |
| Countries by Road Signs | 0 | - | 4.98 | 48,674 |
| Southernmost Countries of the World | 0 | - | 4.99 | 216,421 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 97,178 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 114,796 |
| Countries With the Most Languages | 0 | - | 4.88 | 186,525 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 91,730 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 87,371 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 92,094 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 57,595 |
| Tallest Countries North to South | 0 | - | 4.85 | 114,707 |
| Widest Countries East to West | 0 | - | 4.93 | 123,627 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,909 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,191 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,005 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 89,468 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 123,917 |
| Countries with the Most Desert | 0 | - | 4.93 | 122,433 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,733 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 33,285 |
| City to Country Quiz #1 | 0 | - | 4.95 | 138,088 |
| City to Country Quiz #3 | 0 | - | 4.86 | 102,988 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 74,734 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 217,504 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 191,094 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 121,358 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 139,317 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 214,094 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 146,035 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,360 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 105,335 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,521 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,217 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,368,234 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 361,794 |
| One Border Countries | 0 | - | 4.97 | 426,855 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 96,392 |
| Every Country in its Official/Native Language | 0 | - | 4.97 | 20,706 |
| Most Similar Country Names | 0 | - | 4.15 | 44,943 |
| Longest Country Name A-Z | 0 | - | 4.36 | 39,419 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,590,738 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 80,755 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 255,158 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 114,596 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 106,917 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 86,865 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 54,050 |
| Countries by National Anthem | 0 | - | 4.94 | 69,561 |
| NATO Countries Quiz | 0 | - | 4.98 | 254,817 |
| EU Countries Quiz | 0 | - | 4.99 | 239,604 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 150,665 |
| French-Speaking Countries | 0 | - | 4.84 | 253,145 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 80,067 |
| Countries That Use the Euro | 0 | - | 4.92 | 73,222 |
