| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,977 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,973 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,128 |
| Landlocked Countries | 0 | - | 4.99 | 418,654 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,317,101 |
| Five Closest Countries by Country #3 | 0 | - | 4.97 | 121,121 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,627 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,028 |
| Countries Closest to an Unknown Country A-Z #1 | 0 | - | 4.91 | 79,952 |
| Countries Closest to an Unknown Country A-Z #2 | 0 | - | 4.96 | 73,142 |
| Countries Closest to an Unknown Country A-Z #3 | 0 | - | 4.91 | 61,534 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,858 |
| Himalayan Countries | 0 | - | 4.94 | 137,305 |
| Andean Countries | 0 | - | 4.95 | 83,867 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,143 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,548 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,791 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,310 |
| Danube Countries | 0 | - | 4.97 | 71,622 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,509 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,028 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,592 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,664 |
| European Landlocked Countries | 0 | - | 4.99 | 146,740 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,094 |
| Countries with the Most Species | 0 | - | 4.99 | 102,878 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,226 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,423 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,576 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,283 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,962 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,342 |
| Countries in the Alps | 0 | - | 4.87 | 117,639 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,103 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,316 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,389 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,957 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,059 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,425 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,248 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,160 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,946 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,528 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,458 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,324 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,900 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,174 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,185 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,133 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,044 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,556 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,484 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,253 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,158 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,979 |
| Largest Countries By Category | 0 | - | 4.97 | 157,588 |
| Countries by Countries | 0 | - | 4.96 | 62,816 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,166 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,152 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,464 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,422 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,624 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,299 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,755,241 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,787 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,754 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,528 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,963 |
| Island Countries | 0 | - | 4.99 | 709,634 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,786 |
| Northernmost Countries | 0 | - | 4.99 | 360,362 |
| Countries of South America | 0 | - | 5.00 | 922,576 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,591 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,865,591 |
| "Land" Countries | 0 | - | 4.98 | 335,738 |
| Countries With the Most Neighbors | 0 | - | 4.47 | 101,218 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,160 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,942 |
| Countries with Megacities | 0 | - | 4.99 | 257,925 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,814 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,940 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,096 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,951 |
| Countries by Official Language | 0 | - | 4.95 | 194,596 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,468 |
| Countries in their Native Language | 0 | - | 4.99 | 198,137 |
| Independence from Whom | 0 | - | 4.99 | 211,249 |
| Subdivisions by Country | 0 | - | 4.86 | 50,275 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,653 |
| Megadiverse Countries | 0 | - | 4.96 | 134,749 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,511 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,172 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,735 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,007 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,677 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,361 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,938 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,828 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,469 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,898 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,700 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,758 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,309 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,126 |
| World Map Quiz | 0 | - | 4.81 | 64,481 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,500 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,008 |
| Countries by Founding Story | 0 | - | 4.95 | 77,043 |
| Countries by Road Signs | 0 | - | 4.98 | 53,632 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,453 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,902 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,614 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,271 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,492 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,652 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,805 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,248 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,258 |
| Widest Countries East to West | 0 | - | 4.92 | 129,341 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,376 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,931 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,984 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,497 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,189 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,522 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,222 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,724 |
| Countries with Double Letters | 0 | - | 4.97 | 95,047 |
| Countries that End in N | 0 | - | 4.95 | 169,905 |
| Countries with Five Letters | 0 | - | 4.96 | 279,888 |
| Countries with Six Letters | 0 | - | 4.94 | 212,428 |
| Countries with W | 0 | - | 4.97 | 159,496 |
| Countries with Z | 0 | - | 4.98 | 289,749 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,696 |
| Countries That End in U | 0 | - | 4.95 | 120,395 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,715 |
| Countries that End in O | 0 | - | 4.92 | 159,181 |
| Countries that End in R | 0 | - | 4.87 | 118,725 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,501 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,276 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,077 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,064 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,649 |
| Countries That End in Y | 0 | - | 4.90 | 185,637 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,193 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,395 |
| Countries that End in I | 0 | - | 4.94 | 134,852 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,042 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,565 |
| Countries That End in NIA | 0 | - | 4.92 | 109,499 |
| Countries That End in BIA | 0 | - | 4.93 | 148,823 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,682 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,026 |
| Countries That End in RIA | 0 | - | 4.93 | 126,517 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,601 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,622 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,189 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,534 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,084 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,296 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,656 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,215 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,098 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,184 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,801 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,510 |
| Countries that End in L | 0 | - | 4.94 | 156,528 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,907 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,151 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,824 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,701 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,753 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,736 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,132 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,590 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,083 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,579 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,565 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,941 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,589 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,645 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,950 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,628 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,577 |
| One Border Countries | 0 | - | 4.98 | 467,538 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,273 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,821,734 |
| Countries Closest to the Equator A-Z | 0 | - | 4.53 | 39,149 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,613,894 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,532 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,357 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,656 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,249 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,344 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,906 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,564 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,863 |
| Countries by National Anthem | 0 | - | 4.93 | 71,172 |
| NATO Countries | 0 | - | 4.98 | 279,193 |
| EU Countries Quiz | 0 | - | 4.99 | 272,822 |
