| Countries with Double Letters | 0 | - | 4.96 | 72,685 |
| Countries that End in N | 0 | - | 4.93 | 136,930 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 234,693 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 191,225 |
| Countries with W | 0 | - | 4.97 | 126,325 |
| Countries with Z | 0 | - | 4.98 | 265,390 |
| Countries with Letters Missing | 0 | - | 4.97 | 170,172 |
| Countries That End in U | 0 | - | 4.95 | 109,891 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,991 |
| Countries that End in O | 0 | - | 4.92 | 148,985 |
| Countries that End in R | 0 | - | 4.85 | 97,540 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,481 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,619 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,966 |
| Countries by Last Two Letters | 0 | - | 4.89 | 117,888 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,820 |
| Countries That End in Y | 0 | - | 4.92 | 178,042 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 163,239 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,792 |
| Countries that End in I | 0 | - | 4.92 | 115,344 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,877 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,522 |
| Countries That End in NIA | 0 | - | 4.92 | 101,958 |
| Countries That End in BIA | 0 | - | 4.91 | 127,502 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,375 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 111,118 |
| Countries That End in RIA | 0 | - | 4.90 | 102,040 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 101,944 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 205,240 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,929 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 113,077 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,570 |
| Countries With One Word and Three A's | 0 | - | 4.93 | 43,535 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,989 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 98,338 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,819 |
| Countries with the Word "And" | 0 | - | 4.98 | 85,260 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 42,716 |
| Countries that End in L | 0 | - | 4.95 | 136,033 |
| "Land" Countries | 0 | - | 4.98 | 292,627 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 191,485 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 82,952 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 335,567 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,864,875 |
| Countries with Four Letters | 0 | - | 4.99 | 379,001 |
| Members of the Arab League | 0 | - | 4.86 | 66,722 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,845 |
| Himalayan Countries | 0 | - | 4.94 | 108,784 |
| Andean Countries | 0 | - | 4.91 | 60,431 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,639 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 51,029 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,663 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,946 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,399 |
| Danube Countries | 0 | - | 4.96 | 57,306 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,306 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,365 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,888 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,545 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,224 |
| European Landlocked Countries | 0 | - | 4.99 | 137,310 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,967 |
| Countries with the Most Species | 0 | - | 4.99 | 90,106 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,499 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,071 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,369 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,169 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,956 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,185 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 50,030 |
| Countries in the Alps | 0 | - | 4.84 | 104,027 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,599 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,872 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,394 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,496 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 95,019 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,454 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,668 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,843 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,760 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,510 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,274 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,088 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,077 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,690 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,781 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,354 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,890 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 62,054 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,144 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 203,486 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,798 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,917 |
| Largest Countries By Category | 0 | - | 4.97 | 146,627 |
| Countries by Countries | 0 | - | 4.96 | 55,740 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,185,241 |
| Country Flags with the Most White | 0 | - | 4.91 | 126,820 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,278 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 45,198 |
| Country Flags With Only Two Colors | 0 | - | 4.93 | 79,809 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,238,135 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 117,849 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 186,139 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 345,662 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 363,562 |
| Island Countries Quiz | 0 | - | 4.99 | 669,650 |
| Biggest Countries by Area | 0 | - | 5.00 | 949,327 |
| Northernmost Countries | 0 | - | 4.99 | 331,285 |
| Countries of South America | 0 | - | 5.00 | 812,083 |
| Countries of Oceania | 0 | - | 5.00 | 916,164 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,616,122 |
| Countries with J | 0 | - | 4.55 | 174,193 |
| Add A Letter - Make a Country | 0 | - | 4.80 | 69,002 |
| Countries by Consonants | 0 | - | 4.43 | 73,909 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,389 |
| Countries with Megacities | 0 | - | 4.99 | 202,314 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,758 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 100,169 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,538 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 66,131 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,682 |
| Countries by Official Language | 0 | - | 4.96 | 175,523 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,999 |
| Countries in their Native Language | 0 | - | 4.98 | 180,869 |
| Independence from Whom | 0 | - | 4.99 | 189,769 |
| Subdivisions by Country | 0 | - | 4.85 | 46,961 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,918 |
| Megadiverse Countries | 0 | - | 4.96 | 126,915 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 94,178 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,702 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,877 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,524 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,992 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,842 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,125 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,791 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,898 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,268 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,351 |
| Countries Furthest from the United States | 0 | - | 4.94 | 73,052 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,596 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,485 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,110 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 87,073 |
| World Map Quiz | 0 | - | 4.90 | 51,732 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 119,155 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,870 |
| Southernmost Countries of the World | 0 | - | 4.99 | 210,052 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 93,005 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 110,395 |
| Countries With the Most Languages | 0 | - | 4.90 | 178,194 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,809 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,232 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 88,472 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 55,212 |
| Tallest Countries North to South | 0 | - | 4.84 | 111,718 |
| Widest Countries East to West | 0 | - | 4.93 | 120,689 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,159 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,749 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,935 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,483 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,976 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,786 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,635 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,835 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,454 |
| City to Country Quiz #1 | 0 | - | 4.95 | 135,495 |
| City to Country Quiz #3 | 0 | - | 4.87 | 101,161 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,760 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 211,386 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 171,247 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,983 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 135,104 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 196,681 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 142,732 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,693 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 103,419 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 83,353 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,484 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,331,034 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,824 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,123,803 |
| One Border Countries | 0 | - | 4.98 | 416,378 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 94,354 |
| Most Similar Country Names | 0 | - | 4.14 | 44,168 |
| Longest Country Name A-Z | 0 | - | 4.36 | 37,865 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,477,827 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,613 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,703 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,759 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,380 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,476 |
| Countries by Population Range - Tile Select | 0 | - | 4.84 | 51,457 |
| Countries by National Anthem | 0 | - | 4.95 | 68,771 |
| NATO Countries Quiz | 0 | - | 4.98 | 244,708 |
| EU Countries Quiz | 0 | - | 4.99 | 231,844 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 146,678 |
| French-Speaking Countries | 0 | - | 4.81 | 224,696 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,602 |
| Countries That Use the Euro | 0 | - | 4.93 | 66,574 |
