| Countries with Double Letters | 0 | - | 4.96 | 70,672 |
| Countries that End in N | 0 | - | 4.94 | 134,896 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 232,257 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 189,467 |
| Countries with W | 0 | - | 4.96 | 124,779 |
| Countries with Z | 0 | - | 4.98 | 260,877 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,810 |
| Countries That End in U | 0 | - | 4.95 | 108,765 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 91,440 |
| Countries that End in O | 0 | - | 4.92 | 148,185 |
| Countries that End in R | 0 | - | 4.85 | 97,050 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,800 |
| Countries Ending in "IA" | 0 | - | 4.99 | 173,083 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,127 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,279 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,227 |
| Countries That End in Y | 0 | - | 4.90 | 162,124 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,295 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 121,918 |
| Countries that End in I | 0 | - | 4.92 | 114,969 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,825 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,076 |
| Countries That End in NIA | 0 | - | 4.93 | 101,489 |
| Countries That End in BIA | 0 | - | 4.91 | 126,904 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,558 |
| Countries Whose Names Start with Saint | 0 | - | 4.89 | 110,545 |
| Countries That End in RIA | 0 | - | 4.90 | 101,592 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,273 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 203,367 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,965 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,038 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,631 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,418 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,657 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,388 |
| Countries with the Word "And" | 0 | - | 4.98 | 84,494 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,856 |
| Countries that End in L | 0 | - | 4.95 | 135,407 |
| "Land" Countries | 0 | - | 4.98 | 291,547 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,676 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 69,990 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,513 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 330,973 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,474,256 |
| Countries with Four Letters | 0 | - | 4.99 | 377,295 |
| Members of the Arab League | 0 | - | 4.85 | 64,983 |
| Sahara Desert Countries | 0 | - | 4.97 | 129,231 |
| Himalayan Countries | 0 | - | 4.94 | 107,200 |
| Andean Countries | 0 | - | 4.91 | 59,634 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,714 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,416 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,796 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,622 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,937 |
| Danube Countries | 0 | - | 4.96 | 57,045 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,062 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,151 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,221 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,065 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,360 |
| European Landlocked Countries | 0 | - | 4.99 | 136,709 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,471 |
| Countries with the Most Species | 0 | - | 4.99 | 89,752 |
| Countries 197 to 205 | 0 | - | 4.87 | 56,968 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,911 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,211 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,792 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,722 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,984 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,644 |
| Countries in the Alps | 0 | - | 4.84 | 103,451 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,069 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,646 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,042 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,110 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,608 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,078 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,237 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,567 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,576 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,165 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,922 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,871 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,907 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,287 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,434 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,017 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,696 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,742 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,826 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 200,157 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,454 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,651 |
| Largest Countries By Category | 0 | - | 4.97 | 145,945 |
| Countries by Countries | 0 | - | 4.96 | 55,272 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,136,965 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,605 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,045 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 44,985 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,119 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,202,670 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 117,305 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 183,837 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,477 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 360,050 |
| Island Countries Quiz | 0 | - | 4.99 | 665,845 |
| Biggest Countries by Area | 0 | - | 5.00 | 942,215 |
| Northernmost Countries | 0 | - | 4.99 | 329,864 |
| Countries of South America | 0 | - | 5.00 | 804,222 |
| Countries of Oceania | 0 | - | 5.00 | 906,444 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,597,677 |
| Countries with J | 0 | - | 4.55 | 173,385 |
| Add A Letter - Make a Country | 0 | - | 4.80 | 68,645 |
| Countries by Consonants | 0 | - | 4.44 | 73,506 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,989 |
| Countries with Megacities | 0 | - | 4.99 | 200,328 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,846 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,214 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 97,345 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,208 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 251,205 |
| Countries by Official Language | 0 | - | 4.96 | 174,452 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,721 |
| Countries in their Native Language | 0 | - | 4.98 | 179,600 |
| Independence from Whom | 0 | - | 4.99 | 187,943 |
| Subdivisions by Country | 0 | - | 4.82 | 46,747 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,862 |
| Megadiverse Countries | 0 | - | 4.96 | 126,266 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,760 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,259 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,678 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,537 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,606 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,034 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,775 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,465 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,718 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,630 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,025 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,675 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,202 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,113 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,751 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 84,862 |
| World Map Quiz | 0 | - | 4.91 | 50,713 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 116,712 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,300 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,872 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,108 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,346 |
| Countries With the Most Languages | 0 | - | 4.91 | 176,234 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,333 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,617 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,694 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,719 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,193 |
| Widest Countries East to West | 0 | - | 4.93 | 120,158 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,029 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,000 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,494 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,071 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,271 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,196 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,866 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,681 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,288 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,957 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,748 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,258 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 210,106 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 169,292 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,336 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 134,234 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,516 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,812 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,355 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 102,949 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,947 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,077 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,322,574 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 352,134 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,098,824 |
| One Border Countries | 0 | - | 4.98 | 413,473 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,796 |
| Most Similar Country Names | 0 | - | 4.15 | 43,957 |
| Longest Country Name A-Z | 0 | - | 4.36 | 37,480 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,443,718 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,984 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 247,163 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,022 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,979 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,644 |
| Countries by National Anthem | 0 | - | 4.95 | 62,081 |
| NATO Countries Quiz | 0 | - | 4.98 | 228,094 |
| EU Countries Quiz | 0 | - | 4.99 | 230,220 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 145,664 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,206 |
| Countries That Use the Euro | 0 | - | 4.93 | 65,050 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 228,324 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 233,084 |
