| Countries with Double Letters | 0 | - | 4.97 | 85,889 |
| Countries that End in N | 0 | - | 4.94 | 149,392 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 249,892 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 203,510 |
| Countries with W | 0 | - | 4.97 | 152,402 |
| Countries with Z | 0 | - | 4.98 | 279,482 |
| Countries with Letters Missing | 0 | - | 4.97 | 179,122 |
| Countries That End in U | 0 | - | 4.95 | 116,161 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 103,119 |
| Countries that End in O | 0 | - | 4.92 | 155,777 |
| Countries that End in R | 0 | - | 4.84 | 100,839 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,735 |
| Countries Ending in "IA" | 0 | - | 4.99 | 200,515 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 165,404 |
| Countries by Last Two Letters | 0 | - | 4.88 | 131,579 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 137,480 |
| Countries That End in Y | 0 | - | 4.91 | 182,914 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 191,695 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 147,777 |
| Countries that End in I | 0 | - | 4.92 | 118,131 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 176,412 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,109 |
| Countries That End in NIA | 0 | - | 4.92 | 106,657 |
| Countries That End in BIA | 0 | - | 4.92 | 144,663 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 162,433 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 115,777 |
| Countries That End in RIA | 0 | - | 4.92 | 121,627 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 107,071 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 218,080 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 128,691 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 120,655 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 86,540 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 72,010 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 49,588 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 99,238 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 121,175 |
| Countries that are Free from U.S.A. | 0 | - | 4.88 | 47,026 |
| Countries with the Word "And" | 0 | - | 4.98 | 91,150 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 49,163 |
| Countries that End in L | 0 | - | 4.94 | 153,016 |
| "Land" Countries | 0 | - | 4.98 | 301,286 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 199,027 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,249 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 390,326 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,908,279 |
| Countries with Four Letters | 0 | - | 4.99 | 407,136 |
| Sahara Desert Countries | 0 | - | 4.97 | 149,374 |
| Himalayan Countries | 0 | - | 4.94 | 125,503 |
| Andean Countries | 0 | - | 4.93 | 70,660 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 58,168 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 115,674 |
| Coffee Producing Countries | 0 | - | 4.83 | 61,541 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 60,649 |
| Danube Countries | 0 | - | 4.97 | 61,723 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 98,088 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 82,737 |
| Countries with the Worst Passports | 0 | - | 4.92 | 75,477 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 141,126 |
| European Landlocked Countries | 0 | - | 4.99 | 142,132 |
| Partially Recognized Countries | 0 | - | 4.98 | 99,922 |
| Countries with the Most Species | 0 | - | 4.99 | 93,183 |
| Countries 197 to 205 | 0 | - | 4.88 | 64,856 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 47,096 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,183 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,061 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 70,581 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 54,498 |
| Countries in the Alps | 0 | - | 4.86 | 112,061 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 91,630 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 99,538 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,078 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 84,548 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 111,727 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,666 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,194 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 50,518 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,504 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 59,543 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 51,743 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,546 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,852 |
| Arctic Ocean Countries | 0 | - | 4.94 | 76,518 |
| Countries with the Most Grassland | 0 | - | 4.93 | 74,342 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 111,020 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 65,476 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,397 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 40,647 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 226,462 |
| World Countries - Blind Typing | 0 | - | 5.00 | 97,674 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,723 |
| Largest Countries By Category | 0 | - | 4.97 | 152,552 |
| Countries by Countries | 0 | - | 4.96 | 59,220 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,452,112 |
| Country Flags with the Most White | 0 | - | 4.85 | 133,304 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,962 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,551 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 84,862 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,527,873 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 122,266 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 203,423 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 362,798 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 386,736 |
| Island Countries Quiz | 0 | - | 4.99 | 695,436 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,006,432 |
| Northernmost Countries | 0 | - | 4.99 | 345,048 |
| Countries of South America | 0 | - | 5.00 | 874,928 |
| Countries of Oceania | 0 | - | 5.00 | 990,671 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,756,814 |
| Countries with J | 0 | - | 4.55 | 180,319 |
| Countries by Consonants | 0 | - | 4.41 | 76,648 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,286,215 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 162,613 |
| Countries with Megacities | 0 | - | 4.99 | 222,230 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 189,524 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,659 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 128,851 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 75,053 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 301,461 |
| Countries by Official Language | 0 | - | 4.95 | 186,079 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 284,658 |
| Countries in their Native Language | 0 | - | 4.98 | 190,421 |
| Independence from Whom | 0 | - | 4.99 | 202,555 |
| Subdivisions by Country | 0 | - | 4.85 | 48,951 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 125,688 |
| Megadiverse Countries | 0 | - | 4.97 | 131,273 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 124,026 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,387 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,699 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 73,508 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,583 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 156,914 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,251 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 88,680 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,165 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,073 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,637 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 69,662 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,312 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,497 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,970 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 72,696 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,200 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 100,636 |
| World Map Quiz | 0 | - | 4.87 | 59,113 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 139,174 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 87,800 |
| Countries by Founding Story | 0 | - | 4.95 | 73,878 |
| Southernmost Countries of the World | 0 | - | 4.99 | 220,355 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 99,961 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 117,776 |
| Countries With the Most Languages | 0 | - | 4.89 | 191,940 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 97,491 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 89,595 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 94,783 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,998 |
| Tallest Countries North to South | 0 | - | 4.84 | 116,614 |
| Widest Countries East to West | 0 | - | 4.92 | 125,729 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,429 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 181,562 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,980 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 91,143 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 126,272 |
| Countries with the Most Desert | 0 | - | 4.93 | 124,128 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,287 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,822 |
| City to Country Quiz #1 | 0 | - | 4.96 | 151,436 |
| City to Country Quiz #3 | 0 | - | 4.87 | 105,498 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,219 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 221,814 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 194,364 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,274 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 158,321 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 218,098 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 148,273 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,317 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,366 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 85,210 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 60,316 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,393,440 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 367,311 |
| One Border Countries | 0 | - | 4.98 | 448,325 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 97,636 |
| Most Similar Country Names | 0 | - | 4.15 | 45,490 |
| Longest Country Name A-Z | 0 | - | 4.35 | 40,385 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,667,158 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 82,820 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 259,392 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 117,134 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 108,524 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 89,287 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 55,718 |
| Countries by National Anthem | 0 | - | 4.93 | 70,214 |
| NATO Countries Quiz | 0 | - | 4.98 | 260,385 |
| EU Countries Quiz | 0 | - | 4.99 | 257,000 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 153,518 |
| French-Speaking Countries | 0 | - | 4.85 | 261,719 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 81,644 |
| Countries That Use the Euro | 0 | - | 4.94 | 80,549 |
| Countries with the Most Military Troops | 0 | - | 4.96 | 271,073 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 251,554 |
