| Countries with Double Letters | 0 | - | 4.96 | 67,196 |
| Countries that End in N | 0 | - | 4.94 | 131,646 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 228,343 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,907 |
| Countries with W | 0 | - | 4.97 | 121,888 |
| Countries with Z | 0 | - | 4.98 | 243,045 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,786 |
| Countries That End in U | 0 | - | 4.94 | 107,106 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,516 |
| Countries that End in O | 0 | - | 4.92 | 146,507 |
| Countries that End in R | 0 | - | 4.86 | 96,197 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,944 |
| Countries Ending in "IA" | 0 | - | 4.99 | 170,155 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,015 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,690 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,631 |
| Countries That End in Y | 0 | - | 4.90 | 160,875 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,806 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,962 |
| Countries that End in I | 0 | - | 4.92 | 114,217 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,591 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,893 |
| Countries That End in NIA | 0 | - | 4.93 | 100,401 |
| Countries That End in BIA | 0 | - | 4.91 | 125,463 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,510 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,148 |
| Countries That End in RIA | 0 | - | 4.89 | 100,536 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,852 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 199,017 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,809 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 109,620 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,526 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,645 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,053 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,451 |
| Countries with the Word "And" | 0 | - | 4.98 | 82,701 |
| Countries that End in L | 0 | - | 4.95 | 133,471 |
| "Land" Countries | 0 | - | 4.98 | 288,088 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,934 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,088 |
| Countries With One Word and Three A's | 0 | - | 4.84 | 30,299 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 318,320 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,531,319 |
| Countries with Four Letters | 0 | - | 4.99 | 374,592 |
| Countries on the Equator | 0 | - | 4.83 | 133,016 |
| Members of the Arab League | 0 | - | 4.82 | 59,597 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,352 |
| Himalayan Countries | 0 | - | 4.95 | 102,711 |
| Andean Countries | 0 | - | 4.90 | 57,083 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,931 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,640 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,980 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,610 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,805 |
| Danube Countries | 0 | - | 4.97 | 56,391 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,434 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,628 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,466 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,869 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,479 |
| European Landlocked Countries | 0 | - | 4.99 | 114,884 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,838 |
| Countries with the Most Species | 0 | - | 4.99 | 89,109 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,911 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,477 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,842 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,823 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,155 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,491 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,747 |
| Countries in the Alps | 0 | - | 4.83 | 101,945 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,748 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,967 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,180 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,799 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,442 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,135 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,128 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,808 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,097 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,227 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,970 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,364 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,445 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,044 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,556 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,047 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,792 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 60,999 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,010 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 193,265 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,602 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,004 |
| Largest Countries By Category | 0 | - | 4.96 | 144,023 |
| Countries by Countries | 0 | - | 4.96 | 54,173 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,026,906 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,817 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,424 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,477 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 116,018 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 178,346 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,887 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 352,280 |
| Island Countries Quiz | 0 | - | 4.99 | 639,345 |
| Biggest Countries by Area | 0 | - | 5.00 | 925,969 |
| Northernmost Countries | 0 | - | 4.99 | 325,577 |
| Countries of South America | 0 | - | 5.00 | 784,910 |
| Countries of Oceania | 0 | - | 5.00 | 883,645 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,114,918 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,554,742 |
| Countries with J | 0 | - | 4.56 | 169,855 |
| Add A Letter - Make a Country | 0 | - | 4.79 | 67,728 |
| Countries by Consonants | 0 | - | 4.44 | 72,481 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,387 |
| Countries with Megacities | 0 | - | 4.99 | 195,076 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,731 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 97,005 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,884 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,855 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,486 |
| Countries by Official Language | 0 | - | 4.95 | 153,644 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 247,089 |
| Countries in their Native Language | 0 | - | 4.98 | 177,160 |
| Independence from Whom | 0 | - | 4.99 | 183,973 |
| Subdivisions by Country | 0 | - | 4.82 | 46,227 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 112,414 |
| Megadiverse Countries | 0 | - | 4.96 | 124,835 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,129 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,086 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,157 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,205 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,797 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,000 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,388 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,572 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,021 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 43,102 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,882 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,421 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,530 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,000 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,821 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,467 |
| World Map Quiz | 0 | - | 4.90 | 48,273 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 111,049 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,855 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,525 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,239 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,197 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,878 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,650 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,966 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,602 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,392 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,927 |
| Widest Countries East to West | 0 | - | 4.93 | 118,813 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,706 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,016 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,147 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,885 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,208 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,622 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,290 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,887 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,846 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,821 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,176 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,489 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 160,830 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,810 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 131,779 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 192,241 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,101 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,507 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,723 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,952 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,650 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,303,650 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,796 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,039,577 |
| One Border Countries | 0 | - | 4.98 | 407,017 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 92,533 |
| Most Similar Country Names | 0 | - | 4.15 | 43,470 |
| Longest Country Name A-Z | 0 | - | 4.36 | 36,615 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,362,728 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,475 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,685 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,332 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,537 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,512 |
| Countries by National Anthem | 0 | - | 4.94 | 61,661 |
| NATO Countries Quiz | 0 | - | 4.98 | 223,966 |
| EU Countries Quiz | 0 | - | 4.99 | 226,393 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,796 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 77,227 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,701 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,579 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 216,255 |
| German-Speaking Countries | 0 | - | 4.88 | 117,212 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,385 |
