| Countries with Double Letters | 0 | - | 4.96 | 81,582 |
| Countries that End in N | 0 | - | 4.93 | 145,500 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 245,352 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 199,986 |
| Countries with W | 0 | - | 4.97 | 132,897 |
| Countries with Z | 0 | - | 4.98 | 275,244 |
| Countries with Letters Missing | 0 | - | 4.97 | 176,114 |
| Countries That End in U | 0 | - | 4.95 | 113,914 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 99,872 |
| Countries that End in O | 0 | - | 4.91 | 154,126 |
| Countries that End in R | 0 | - | 4.83 | 99,780 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,780 |
| Countries Ending in "IA" | 0 | - | 4.99 | 197,766 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 163,100 |
| Countries by Last Two Letters | 0 | - | 4.87 | 121,700 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 135,423 |
| Countries That End in Y | 0 | - | 4.91 | 181,997 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 189,009 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 127,275 |
| Countries that End in I | 0 | - | 4.92 | 117,343 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 158,143 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 92,092 |
| Countries That End in NIA | 0 | - | 4.92 | 105,007 |
| Countries That End in BIA | 0 | - | 4.91 | 142,591 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 161,092 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,602 |
| Countries That End in RIA | 0 | - | 4.90 | 105,346 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 105,731 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 214,909 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 127,020 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 118,851 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 84,689 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,469 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 97,555 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,812 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,157 |
| Countries with the Word "And" | 0 | - | 4.98 | 89,663 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 47,542 |
| Countries that End in L | 0 | - | 4.94 | 151,647 |
| "Land" Countries | 0 | - | 4.98 | 299,407 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 197,343 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,887 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 380,522 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,160,754 |
| Countries with Four Letters | 0 | - | 4.99 | 404,829 |
| Sahara Desert Countries | 0 | - | 4.97 | 144,570 |
| Himalayan Countries | 0 | - | 4.95 | 121,345 |
| Andean Countries | 0 | - | 4.92 | 68,162 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 56,265 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 112,377 |
| Coffee Producing Countries | 0 | - | 4.82 | 59,467 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 58,915 |
| Danube Countries | 0 | - | 4.97 | 60,615 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 96,511 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,664 |
| Countries with the Best Passports | 0 | - | 4.81 | 79,955 |
| Countries with the Worst Passports | 0 | - | 4.92 | 63,930 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 137,338 |
| European Landlocked Countries | 0 | - | 4.99 | 140,791 |
| Partially Recognized Countries | 0 | - | 4.98 | 97,676 |
| Countries with the Most Species | 0 | - | 4.99 | 92,186 |
| Countries 197 to 205 | 0 | - | 4.87 | 63,110 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,604 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,698 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 52,378 |
| Countries that Use the Peso | 0 | - | 4.88 | 55,991 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,793 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 53,426 |
| Countries in the Alps | 0 | - | 4.86 | 110,090 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 90,460 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 97,311 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 75,216 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 83,263 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 110,352 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,745 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,754 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,643 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,835 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,591 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,577 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 51,116 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 38,969 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,960 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,653 |
| Countries with the Most Grassland | 0 | - | 4.93 | 73,317 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 108,460 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,649 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,558 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 220,995 |
| World Countries - Blind Typing | 0 | - | 5.00 | 94,192 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 44,939 |
| Largest Countries By Category | 0 | - | 4.97 | 151,009 |
| Countries by Countries | 0 | - | 4.96 | 58,262 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,393,931 |
| Country Flags with the Most White | 0 | - | 4.87 | 131,766 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,567 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,253 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,666 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,459,467 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 121,396 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 199,462 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 359,456 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 381,309 |
| Island Countries Quiz | 0 | - | 4.99 | 689,590 |
| Biggest Countries by Area | 0 | - | 5.00 | 987,275 |
| Northernmost Countries | 0 | - | 4.99 | 341,916 |
| Countries of South America | 0 | - | 5.00 | 859,429 |
| Countries of Oceania | 0 | - | 5.00 | 971,692 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,723,779 |
| Countries with J | 0 | - | 4.55 | 178,693 |
| Add A Letter - Make a Country | 0 | - | 4.80 | 71,063 |
| Countries by Consonants | 0 | - | 4.43 | 76,024 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,250,330 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 158,102 |
| Countries with Megacities | 0 | - | 4.99 | 217,215 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 186,193 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 105,971 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,210 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 72,871 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 269,094 |
| Countries by Official Language | 0 | - | 4.95 | 183,613 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 281,403 |
| Countries in their Native Language | 0 | - | 4.98 | 188,438 |
| Independence from Whom | 0 | - | 4.99 | 199,405 |
| Subdivisions by Country | 0 | - | 4.86 | 48,457 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 123,420 |
| Megadiverse Countries | 0 | - | 4.96 | 130,315 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 121,719 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,753 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 49,275 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 155,090 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 59,364 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 86,174 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 148,863 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 80,153 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,371 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 66,844 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,762 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,843 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,082 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 72,054 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,434 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 97,662 |
| World Map Quiz | 0 | - | 4.88 | 57,372 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 134,153 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 86,540 |
| Countries by Founding Story | 0 | - | 4.94 | 72,690 |
| Southernmost Countries of the World | 0 | - | 4.99 | 218,037 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 98,366 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 116,249 |
| Countries With the Most Languages | 0 | - | 4.89 | 188,616 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 92,335 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 88,290 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 93,324 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,198 |
| Tallest Countries North to South | 0 | - | 4.85 | 115,411 |
| Widest Countries East to West | 0 | - | 4.92 | 124,526 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,141 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,917 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,362 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 90,116 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 125,182 |
| Countries with the Most Desert | 0 | - | 4.93 | 123,140 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,960 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,492 |
| City to Country Quiz #1 | 0 | - | 4.96 | 148,583 |
| City to Country Quiz #3 | 0 | - | 4.87 | 104,422 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 75,465 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 218,907 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 192,180 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 121,958 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 140,704 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 215,670 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.97 | 146,770 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,662 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.82 | 105,917 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 84,818 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,694 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,378,897 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 364,154 |
| One Border Countries | 0 | - | 4.98 | 444,177 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 96,949 |
| Most Similar Country Names | 0 | - | 4.15 | 45,158 |
| Longest Country Name A-Z | 0 | - | 4.36 | 39,866 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,623,329 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 81,612 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 256,930 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 115,676 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,510 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 87,871 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 54,795 |
| Countries by National Anthem | 0 | - | 4.92 | 69,832 |
| NATO Countries Quiz | 0 | - | 4.98 | 257,215 |
| EU Countries Quiz | 0 | - | 4.99 | 254,016 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 152,013 |
| French-Speaking Countries | 0 | - | 4.85 | 256,883 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 80,452 |
| Countries That Use the Euro | 0 | - | 4.92 | 75,388 |
| Countries with the Most Military Troops | 0 | - | 4.96 | 266,251 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 247,984 |
