| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,750 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,502 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,689 |
| Landlocked Countries | 0 | - | 4.99 | 413,736 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,930,293 |
| Five Closest Countries by Country #3 | 0 | - | 4.97 | 120,722 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,917 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,486 |
| Countries Closest to an Unknown Country A-Z #1 | 0 | - | 4.92 | 79,452 |
| Countries Closest to an Unknown Country A-Z #2 | 0 | - | 4.97 | 72,682 |
| Countries Closest to an Unknown Country A-Z #3 | 0 | - | 4.91 | 61,165 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,645 |
| Himalayan Countries | 0 | - | 4.95 | 135,409 |
| Andean Countries | 0 | - | 4.94 | 82,844 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,235 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,234 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,925 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,624 |
| Danube Countries | 0 | - | 4.97 | 71,094 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,776 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,547 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,514 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,422 |
| European Landlocked Countries | 0 | - | 4.99 | 145,767 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,227 |
| Countries with the Most Species | 0 | - | 4.99 | 95,247 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,368 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,202 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,372 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,964 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,581 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,957 |
| Countries in the Alps | 0 | - | 4.86 | 116,840 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,581 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,278 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,019 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,432 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,184 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,011 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,590 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,769 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,345 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,074 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,198 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,048 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,460 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,757 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,763 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,097 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,656 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,259 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,779 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,359 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,713 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,610 |
| Largest Countries By Category | 0 | - | 4.97 | 156,780 |
| Countries by Countries | 0 | - | 4.96 | 62,269 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,404 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,963 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,335 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,712 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,118 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,778 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,718,042 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,505 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,189 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,155 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,910 |
| Island Countries | 0 | - | 4.99 | 707,675 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,618 |
| Northernmost Countries | 0 | - | 4.99 | 357,791 |
| Countries of South America | 0 | - | 5.00 | 914,977 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,763 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,799 |
| "Land" Countries | 0 | - | 4.98 | 333,684 |
| Countries With the Most Neighbors | 0 | - | 4.45 | 90,317 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,645 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,325 |
| Countries with Megacities | 0 | - | 4.99 | 247,073 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,197 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,028 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,618 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,934 |
| Countries by Official Language | 0 | - | 4.95 | 192,800 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,163 |
| Countries in their Native Language | 0 | - | 4.99 | 196,662 |
| Independence from Whom | 0 | - | 4.99 | 209,731 |
| Subdivisions by Country | 0 | - | 4.86 | 50,071 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,782 |
| Megadiverse Countries | 0 | - | 4.97 | 133,909 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,819 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,922 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,431 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,864 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,683 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,012 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,043 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,159 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,220 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,596 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,433 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,509 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,032 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,622 |
| World Map Quiz | 0 | - | 4.81 | 63,512 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,733 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,342 |
| Countries by Founding Story | 0 | - | 4.95 | 76,560 |
| Countries by Road Signs | 0 | - | 4.98 | 53,108 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,374 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,005 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,964 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,802 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,866 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,073 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,285 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,953 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,343 |
| Widest Countries East to West | 0 | - | 4.92 | 128,615 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,219 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,229 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,573 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,698 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,643 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,056 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,052 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,586 |
| Countries with Double Letters | 0 | - | 4.97 | 93,410 |
| Countries that End in N | 0 | - | 4.94 | 156,899 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,710 |
| Countries with Six Letters | 0 | - | 4.93 | 210,389 |
| Countries with W | 0 | - | 4.97 | 158,240 |
| Countries with Z | 0 | - | 4.98 | 287,904 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,569 |
| Countries That End in U | 0 | - | 4.95 | 119,525 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,587 |
| Countries that End in O | 0 | - | 4.92 | 158,568 |
| Countries that End in R | 0 | - | 4.87 | 118,279 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,863 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,067 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,354 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,506 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,037 |
| Countries That End in Y | 0 | - | 4.90 | 185,214 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,393 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,699 |
| Countries that End in I | 0 | - | 4.94 | 134,424 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,212 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,202 |
| Countries That End in NIA | 0 | - | 4.92 | 109,014 |
| Countries That End in BIA | 0 | - | 4.92 | 147,725 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,081 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,495 |
| Countries That End in RIA | 0 | - | 4.93 | 126,091 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,020 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,214 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,536 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,892 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,370 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,937 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,133 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,659 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,519 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,818 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,162 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,829 |
| Countries that End in L | 0 | - | 4.94 | 155,745 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,264 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,989 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,519 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,311 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,438 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,061 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,121 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 125,923 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,209 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,405 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,534 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,624 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,173 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,423 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,336 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,322 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,715 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,476 |
| One Border Countries | 0 | - | 4.98 | 464,470 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,647 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,801,692 |
| Countries Closest to the Equator A-Z | 0 | - | 4.53 | 38,935 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,588,703 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,862 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,967 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,907 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,506 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,630 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,299 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,253 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,973 |
| Countries by National Anthem | 0 | - | 4.93 | 71,034 |
| NATO Countries | 0 | - | 4.98 | 275,858 |
