| Boundary Waters | 0 | - | 4.92 | 88,443 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,132 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,030 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,415,617 |
| Landlocked Countries | 0 | - | 4.99 | 419,930 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,560 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,872 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,081 |
| World Capitals Quiz | 0 | - | 5.00 | 5,070,134 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,438 |
| Himalayan Countries | 0 | - | 4.95 | 137,869 |
| Andean Countries | 0 | - | 4.95 | 84,145 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,366 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,928 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,007 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,471 |
| Danube Countries | 0 | - | 4.97 | 71,760 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,699 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,158 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,849 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,926 |
| European Landlocked Countries | 0 | - | 4.99 | 146,894 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,279 |
| Countries with the Most Species | 0 | - | 4.99 | 103,034 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,434 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,465 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,635 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,395 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,068 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,463 |
| Countries in the Alps | 0 | - | 4.87 | 117,874 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 96,279 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,590 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,488 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,375 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,235 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,796 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,395 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,275 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,039 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,643 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,539 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,384 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,011 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,294 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,305 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,426 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,132 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,639 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,698 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,880 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,512 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,060 |
| Largest Countries By Category | 0 | - | 4.97 | 157,825 |
| Countries by Countries | 0 | - | 4.97 | 62,947 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,376 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,186 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,446 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,763,791 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,506 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,787 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,314 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,427 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,426 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,145 |
| Longest International Borders | 0 | - | 4.99 | 264,852 |
| Countries with Three Borders | 0 | - | 4.96 | 36,510 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,978 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,094 |
| Demonym of Every Country | 0 | - | 4.91 | 59,307 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,860 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,585,250 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,878 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,912 |
| Island Countries | 0 | - | 4.99 | 710,171 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,047,200 |
| Northernmost Countries | 0 | - | 4.99 | 360,973 |
| Countries of South America | 0 | - | 5.00 | 924,331 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,136 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,870,087 |
| "Land" Countries | 0 | - | 4.98 | 336,058 |
| Top World Languages | 0 | - | 4.92 | 821,501 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,182 |
| Europe Map Quiz | 0 | - | 5.00 | 4,760,740 |
| All Country Flags of the World | 0 | - | 5.00 | 3,659,582 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,370 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,303 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,281 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,864 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,133 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,317 |
| Countries with Megacities | 0 | - | 4.99 | 262,770 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,169 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,152 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,462 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,197 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,108 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,036 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,162 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,349 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,432 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,153 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,889 |
| Countries by Capital City | 0 | - | 5.00 | 68,171 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,114 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,599 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,160 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,123 |
| Moved Capital Cities | 0 | - | 4.96 | 74,155 |
| Countries by Official Language | 0 | - | 4.95 | 194,835 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,805 |
| Countries in their Native Language | 0 | - | 4.99 | 198,378 |
| Independence from Whom | 0 | - | 4.99 | 211,599 |
| Subdivisions by Country | 0 | - | 4.86 | 50,338 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,892 |
| Megadiverse Countries | 0 | - | 4.96 | 134,840 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,712 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,229 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,807 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,044 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,848 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,450 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,129 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,905 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,539 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,027 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,243 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,770 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,055 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,841 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,224 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,390 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,497 |
| World Map Quiz | 0 | - | 4.81 | 64,778 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,124 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,141 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,692 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,046 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,771 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,636 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,647 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,786 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,919 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,333 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,380 |
| Widest Countries East to West | 0 | - | 4.92 | 129,457 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,407 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,101 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,039 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,596 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,343 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,656 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,291 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,750 |
| Countries with Double Letters | 0 | - | 4.97 | 95,298 |
| Countries that End in N | 0 | - | 4.95 | 170,315 |
| Countries with Five Letters | 0 | - | 4.96 | 281,110 |
| Countries with Six Letters | 0 | - | 4.94 | 212,738 |
| Countries with W | 0 | - | 4.97 | 159,658 |
| Countries with Z | 0 | - | 4.98 | 290,531 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,917 |
| Countries That End in U | 0 | - | 4.95 | 120,489 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,926 |
| Countries that End in O | 0 | - | 4.92 | 159,265 |
| Countries that End in R | 0 | - | 4.87 | 118,783 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,557 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,527 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,279 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,187 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,789 |
| Countries That End in Y | 0 | - | 4.91 | 185,696 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,460 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,554 |
| Countries that End in I | 0 | - | 4.94 | 134,926 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,662 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,640 |
| Countries That End in NIA | 0 | - | 4.92 | 109,586 |
| Countries That End in BIA | 0 | - | 4.93 | 148,941 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,845 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,169 |
| Countries That End in RIA | 0 | - | 4.93 | 126,606 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,743 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,982 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,365 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,743 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,275 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,393 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,759 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,339 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,250 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,257 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,942 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,668 |
| Countries that End in L | 0 | - | 4.94 | 156,622 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,540 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,177 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,894 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,793 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,842 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,981 |
