| Countries with Double Letters | 0 | - | 4.96 | 70,094 |
| Countries that End in N | 0 | - | 4.94 | 134,304 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,673 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 189,024 |
| Countries with W | 0 | - | 4.96 | 124,237 |
| Countries with Z | 0 | - | 4.98 | 246,336 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,476 |
| Countries That End in U | 0 | - | 4.95 | 108,376 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 90,902 |
| Countries that End in O | 0 | - | 4.92 | 147,875 |
| Countries that End in R | 0 | - | 4.84 | 96,881 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,686 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,797 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 156,974 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,163 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,102 |
| Countries That End in Y | 0 | - | 4.90 | 162,030 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,122 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,786 |
| Countries that End in I | 0 | - | 4.92 | 114,878 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,666 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,987 |
| Countries That End in NIA | 0 | - | 4.93 | 101,397 |
| Countries That End in BIA | 0 | - | 4.91 | 126,783 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,335 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,431 |
| Countries That End in RIA | 0 | - | 4.90 | 101,511 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,154 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 203,054 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,787 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 111,843 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,454 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,255 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,508 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,313 |
| Countries with the Word "And" | 0 | - | 4.98 | 84,347 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,685 |
| Countries that End in L | 0 | - | 4.95 | 135,291 |
| "Land" Countries | 0 | - | 4.98 | 291,335 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,493 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,311 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,417 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 330,181 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,402,652 |
| Countries with Four Letters | 0 | - | 4.99 | 377,069 |
| Members of the Arab League | 0 | - | 4.85 | 64,694 |
| Sahara Desert Countries | 0 | - | 4.97 | 128,984 |
| Himalayan Countries | 0 | - | 4.95 | 106,931 |
| Andean Countries | 0 | - | 4.91 | 59,472 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,550 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,297 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,666 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,563 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,857 |
| Danube Countries | 0 | - | 4.96 | 57,005 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,021 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,119 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,084 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,967 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,250 |
| European Landlocked Countries | 0 | - | 4.99 | 136,546 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,382 |
| Countries with the Most Species | 0 | - | 4.99 | 89,709 |
| Countries 197 to 205 | 0 | - | 4.87 | 56,875 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,888 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,182 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,719 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,669 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,946 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,559 |
| Countries in the Alps | 0 | - | 4.84 | 103,346 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,955 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,437 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,975 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,037 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,513 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,003 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,169 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,507 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,541 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,101 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,858 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,822 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,875 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,215 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,372 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,938 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,471 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,689 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,762 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,649 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,209 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,593 |
| Largest Countries By Category | 0 | - | 4.97 | 145,793 |
| Countries by Countries | 0 | - | 4.96 | 55,180 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,127,865 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,452 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,990 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 44,937 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,995 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,196,032 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 117,212 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 183,446 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,146 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 359,434 |
| Island Countries Quiz | 0 | - | 4.99 | 665,115 |
| Biggest Countries by Area | 0 | - | 5.00 | 940,887 |
| Northernmost Countries | 0 | - | 4.99 | 329,446 |
| Countries of South America | 0 | - | 5.00 | 802,871 |
| Countries of Oceania | 0 | - | 5.00 | 904,899 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,594,247 |
| Countries with J | 0 | - | 4.55 | 172,891 |
| Add A Letter - Make a Country | 0 | - | 4.80 | 68,562 |
| Countries by Consonants | 0 | - | 4.44 | 73,414 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,710 |
| Countries with Megacities | 0 | - | 4.99 | 199,958 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,516 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,048 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,098 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 65,024 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,744 |
| Countries by Official Language | 0 | - | 4.96 | 174,261 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,383 |
| Countries in their Native Language | 0 | - | 4.98 | 179,464 |
| Independence from Whom | 0 | - | 4.99 | 187,667 |
| Subdivisions by Country | 0 | - | 4.82 | 46,707 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,670 |
| Megadiverse Countries | 0 | - | 4.96 | 126,195 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,571 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,171 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,649 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,403 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,536 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,873 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,706 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,412 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,685 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,505 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,973 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,612 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,162 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,046 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,679 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 84,544 |
| World Map Quiz | 0 | - | 4.91 | 50,527 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 116,247 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,197 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,619 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,964 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,208 |
| Countries With the Most Languages | 0 | - | 4.91 | 175,901 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,100 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,488 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,554 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,613 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,091 |
| Widest Countries East to West | 0 | - | 4.93 | 120,053 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,007 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,869 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,404 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,018 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,180 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,070 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,780 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,645 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,260 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,880 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,699 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 72,185 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 209,870 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 168,966 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,240 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 134,092 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,304 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,688 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,296 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 102,838 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,871 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,992 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,320,949 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,560 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,094,326 |
| One Border Countries | 0 | - | 4.98 | 412,898 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,703 |
| Most Similar Country Names | 0 | - | 4.15 | 43,924 |
| Longest Country Name A-Z | 0 | - | 4.36 | 37,410 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,435,053 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,848 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 246,923 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,878 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,897 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,455 |
| Countries by National Anthem | 0 | - | 4.95 | 62,041 |
| NATO Countries Quiz | 0 | - | 4.98 | 227,730 |
| EU Countries Quiz | 0 | - | 4.99 | 229,947 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 145,520 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,170 |
| Countries That Use the Euro | 0 | - | 4.93 | 64,839 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 227,767 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 228,890 |
