| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,319 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,796 |
| Countries Closest to an Unknown Country A-Z #1 | 0 | - | 4.91 | 79,719 |
| Countries Closest to an Unknown Country A-Z #2 | 0 | - | 4.96 | 72,930 |
| Countries Closest to an Unknown Country A-Z #3 | 0 | - | 4.91 | 61,361 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,815 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,703 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,880 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,195,153 |
| Landlocked Countries | 0 | - | 4.99 | 417,064 |
| Countries Closest to the Equator A-Z | 0 | - | 4.53 | 39,079 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,743,648 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,117 |
| Himalayan Countries | 0 | - | 4.95 | 136,677 |
| Andean Countries | 0 | - | 4.95 | 83,572 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,829 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,108 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,495 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,088 |
| Danube Countries | 0 | - | 4.97 | 71,470 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,279 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,884 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,250 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,241 |
| European Landlocked Countries | 0 | - | 4.99 | 146,172 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,829 |
| Countries with the Most Species | 0 | - | 4.99 | 102,242 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,960 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,349 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,529 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,193 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,840 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,220 |
| Countries in the Alps | 0 | - | 4.86 | 117,396 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,937 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,001 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,284 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,783 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,873 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,295 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,039 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,020 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,847 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,384 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,385 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,221 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,764 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,030 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,037 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,794 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,922 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,453 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,284 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,236 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,684 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,858 |
| Largest Countries By Category | 0 | - | 4.97 | 157,329 |
| Countries by Countries | 0 | - | 4.96 | 62,638 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,928 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,703 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,094 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,415 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,882 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,437 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,131 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,311 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,997 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,067 |
| Island Countries | 0 | - | 4.99 | 708,987 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,819 |
| Northernmost Countries | 0 | - | 4.99 | 359,586 |
| Countries Whose Center is Closest to the Equator | 0 | - | 4.64 | 61,821 |
| Countries of South America | 0 | - | 5.00 | 920,256 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,742 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,115 |
| "Land" Countries | 0 | - | 4.98 | 334,864 |
| Countries With the Most Neighbors | 0 | - | 4.45 | 90,459 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,485 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,436 |
| Countries with Megacities | 0 | - | 4.99 | 249,289 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,290 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,634 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,608 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,612 |
| Countries by Official Language | 0 | - | 4.95 | 194,131 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,935 |
| Countries in their Native Language | 0 | - | 4.99 | 197,741 |
| Independence from Whom | 0 | - | 4.99 | 210,913 |
| Subdivisions by Country | 0 | - | 4.86 | 50,216 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,416 |
| Megadiverse Countries | 0 | - | 4.96 | 134,577 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,930 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,092 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,651 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,958 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,491 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,257 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,667 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,580 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,393 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,392 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,602 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,668 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,233 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,687 |
| World Map Quiz | 0 | - | 4.81 | 64,176 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,615 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,742 |
| Countries by Founding Story | 0 | - | 4.95 | 76,918 |
| Countries by Road Signs | 0 | - | 4.98 | 53,464 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,127 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,714 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,444 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,805 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,315 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,504 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,666 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,169 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,803 |
| Widest Countries East to West | 0 | - | 4.92 | 129,187 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,336 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,711 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,939 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,982 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,016 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,393 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,134 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,685 |
| Countries with Double Letters | 0 | - | 4.96 | 94,328 |
| Countries that End in N | 0 | - | 4.95 | 167,981 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 264,722 |
| Countries with Six Letters | 0 | - | 4.93 | 211,428 |
| Countries with W | 0 | - | 4.97 | 158,971 |
| Countries with Z | 0 | - | 4.98 | 288,995 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,183 |
| Countries That End in U | 0 | - | 4.95 | 120,053 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,271 |
| Countries that End in O | 0 | - | 4.92 | 158,941 |
| Countries that End in R | 0 | - | 4.87 | 118,553 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,327 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,863 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,807 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,861 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,441 |
| Countries That End in Y | 0 | - | 4.90 | 185,470 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,919 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,145 |
| Countries that End in I | 0 | - | 4.94 | 134,708 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,754 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,436 |
| Countries That End in NIA | 0 | - | 4.92 | 109,325 |
| Countries That End in BIA | 0 | - | 4.93 | 148,615 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,468 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,816 |
| Countries That End in RIA | 0 | - | 4.93 | 126,375 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,387 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,179 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,914 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,253 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,858 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,178 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,486 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,001 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,887 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,050 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,578 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,270 |
| Countries that End in L | 0 | - | 4.94 | 156,331 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,097 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,089 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,730 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,592 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,646 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,393 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,854 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,400 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,869 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,317 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,075 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,883 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,310 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,538 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,539 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,547 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,013 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,914 |
| One Border Countries | 0 | - | 4.98 | 466,672 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,815,239 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,606,085 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,132 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,331 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,998 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,399 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,121 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,137 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,693 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,466 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,583 |
| Countries by National Anthem | 0 | - | 4.92 | 71,134 |
| NATO Countries | 0 | - | 4.98 | 278,339 |