| Boundary Waters | 0 | - | 4.92 | 88,489 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,182 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,136 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,486,254 |
| Landlocked Countries | 0 | - | 4.99 | 420,842 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,629 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,221 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,230 |
| World Capitals Quiz | 0 | - | 5.00 | 5,076,079 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,917 |
| Himalayan Countries | 0 | - | 4.95 | 138,224 |
| Andean Countries | 0 | - | 4.95 | 84,332 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,561 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,444 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,183 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,608 |
| Danube Countries | 0 | - | 4.97 | 71,869 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,843 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,274 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,046 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,513 |
| European Landlocked Countries | 0 | - | 4.99 | 147,007 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,424 |
| Countries with the Most Species | 0 | - | 4.99 | 103,128 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,574 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,525 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,462 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,138 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,540 |
| Countries in the Alps | 0 | - | 4.87 | 118,009 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,052 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,795 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,563 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,482 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,353 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,852 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,505 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,373 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,098 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,726 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,575 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,433 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,097 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,371 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,394 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,615 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,195 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,716 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,861 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,359 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,759 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,133 |
| Largest Countries By Category | 0 | - | 4.97 | 157,980 |
| Countries by Countries | 0 | - | 4.96 | 63,052 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,509 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,228 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,547 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,933 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,602 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,815 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,385 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,451 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,671 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,215 |
| Longest International Borders | 0 | - | 4.99 | 264,983 |
| Countries with Three Borders | 0 | - | 4.96 | 36,549 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,034 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,145 |
| Demonym of Every Country | 0 | - | 4.91 | 60,326 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,558 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,587,291 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,149 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,466 |
| Island Countries | 0 | - | 4.99 | 710,565 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,319 |
| Northernmost Countries | 0 | - | 4.99 | 361,399 |
| Countries of South America | 0 | - | 5.00 | 925,537 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,641 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,012 |
| "Land" Countries | 0 | - | 4.98 | 336,860 |
| Top World Languages | 0 | - | 4.92 | 822,659 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,617 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,595 |
| All Country Flags of the World | 0 | - | 5.00 | 3,667,955 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,404 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,317 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,402 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,242 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,461 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,578 |
| Countries with Megacities | 0 | - | 4.99 | 263,700 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,416 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,303 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,692 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,344 |
| Biggest Cities in the World | 0 | - | 4.91 | 799,333 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,205 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,303 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,445 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,542 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,282 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,073 |
| Countries by Capital City | 0 | - | 5.00 | 68,348 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,206 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,678 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,577 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,240 |
| Moved Capital Cities | 0 | - | 4.96 | 74,234 |
| Countries by Official Language | 0 | - | 4.95 | 195,003 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,043 |
| Countries in their Native Language | 0 | - | 4.99 | 198,513 |
| Independence from Whom | 0 | - | 4.99 | 211,794 |
| Subdivisions by Country | 0 | - | 4.86 | 50,379 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,182 |
| Megadiverse Countries | 0 | - | 4.96 | 134,911 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,860 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,280 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,862 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,067 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,959 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,502 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,273 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,960 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,585 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,048 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,414 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,807 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,120 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,898 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,268 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,430 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,807 |
| World Map Quiz | 0 | - | 4.81 | 64,923 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,574 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,226 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,851 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,136 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,856 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,870 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,764 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,896 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,200 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,377 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,472 |
| Widest Countries East to West | 0 | - | 4.92 | 129,544 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,421 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,221 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,076 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,661 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,447 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,730 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,327 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,772 |
| Countries with Double Letters | 0 | - | 4.97 | 95,815 |
| Countries that End in N | 0 | - | 4.95 | 170,759 |
| Countries with Five Letters | 0 | - | 4.96 | 281,831 |
| Countries with Six Letters | 0 | - | 4.94 | 213,161 |
| Countries with W | 0 | - | 4.97 | 160,051 |
| Countries with Z | 0 | - | 4.98 | 291,014 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,389 |
| Countries That End in U | 0 | - | 4.95 | 120,686 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,182 |
| Countries that End in O | 0 | - | 4.92 | 159,399 |
| Countries that End in R | 0 | - | 4.87 | 118,870 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,644 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,784 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,460 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,305 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,014 |
| Countries That End in Y | 0 | - | 4.91 | 185,789 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,649 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,684 |
| Countries that End in I | 0 | - | 4.94 | 135,005 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,827 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,727 |
| Countries That End in NIA | 0 | - | 4.92 | 109,669 |
| Countries That End in BIA | 0 | - | 4.93 | 149,052 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,944 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,271 |
| Countries That End in RIA | 0 | - | 4.93 | 126,705 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,862 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,241 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,492 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,889 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,457 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,480 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,878 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,394 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,376 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,337 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,100 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,807 |
| Countries that End in L | 0 | - | 4.94 | 156,714 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,017 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,226 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,936 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,860 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,902 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,504 |
