| Boundary Waters | 0 | - | 4.92 | 88,822 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,444 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,794 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,946,712 |
| Landlocked Countries | 0 | - | 4.99 | 426,960 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,974 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,112 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,147 |
| World Capitals Quiz | 0 | - | 5.00 | 5,111,795 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,777 |
| Himalayan Countries | 0 | - | 4.93 | 140,695 |
| Andean Countries | 0 | - | 4.94 | 85,737 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,860 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,404 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,414 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,640 |
| Danube Countries | 0 | - | 4.97 | 72,516 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,743 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,942 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,378 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,828 |
| European Landlocked Countries | 0 | - | 4.99 | 147,705 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,484 |
| Countries with the Most Species | 0 | - | 4.99 | 103,627 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,583 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,803 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,938 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,902 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,658 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,106 |
| Countries in the Alps | 0 | - | 4.87 | 118,925 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,916 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,062 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,040 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,138 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,091 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,361 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,545 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,971 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,496 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,287 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,938 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,816 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,650 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,900 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,995 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,087 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,699 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,177 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,803 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,170 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,408 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,593 |
| Largest Countries By Category | 0 | - | 4.97 | 159,034 |
| Countries by Countries | 0 | - | 4.97 | 63,781 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,388 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,439 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,197 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,810,246 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,556 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,020 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,863 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,652 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,329 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,634 |
| Longest International Borders | 0 | - | 4.99 | 265,940 |
| Countries with Three Borders | 0 | - | 4.96 | 36,814 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,407 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,549 |
| Demonym of Every Country | 0 | - | 4.90 | 61,594 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,315 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,535 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,971 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,179 |
| Island Countries | 0 | - | 4.99 | 712,886 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,811 |
| Northernmost Countries | 0 | - | 4.99 | 364,453 |
| Countries of South America | 0 | - | 5.00 | 933,844 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,895 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,892,018 |
| "Land" Countries | 0 | - | 4.98 | 338,871 |
| Top World Languages | 0 | - | 4.92 | 830,901 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,180 |
| Europe Map Quiz | 0 | - | 5.00 | 4,791,692 |
| All Country Flags of the World | 0 | - | 5.00 | 3,721,864 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,764 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,404 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,087 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,580 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,851 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,423 |
| Countries with Megacities | 0 | - | 4.99 | 267,670 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,072 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,288 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,411 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,396 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,659 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,459 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,504 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,052 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,300 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,379 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,315 |
| Countries by Capital City | 0 | - | 5.00 | 69,560 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,089 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,319 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,268 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,921 |
| Moved Capital Cities | 0 | - | 4.96 | 74,710 |
| Countries by Official Language | 0 | - | 4.95 | 196,164 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,863 |
| Countries in their Native Language | 0 | - | 4.99 | 199,907 |
| Independence from Whom | 0 | - | 4.99 | 213,329 |
| Subdivisions by Country | 0 | - | 4.87 | 50,652 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,616 |
| Megadiverse Countries | 0 | - | 4.96 | 148,050 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,084 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,569 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,777 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,247 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,418 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,911 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,238 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,607 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,143 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,280 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,707 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,462 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,488 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,198 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,619 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,943 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,643 |
| World Map Quiz | 0 | - | 4.81 | 65,880 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,731 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,779 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,440 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,199 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,666 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,842 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,523 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,631 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,826 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,749 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,907 |
| Widest Countries East to West | 0 | - | 4.92 | 130,806 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,623 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,354 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,547 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,131 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,072 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,584 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,526 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,916 |
| Countries with Double Letters | 0 | - | 4.96 | 97,519 |
| Countries that End in N | 0 | - | 4.95 | 172,544 |
| Countries with Five Letters | 0 | - | 4.96 | 284,514 |
| Countries with Six Letters | 0 | - | 4.94 | 214,864 |
| Countries with W | 0 | - | 4.96 | 161,245 |
| Countries with Z | 0 | - | 4.98 | 292,892 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,604 |
| Countries That End in U | 0 | - | 4.95 | 121,352 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,358 |
| Countries that End in O | 0 | - | 4.92 | 160,346 |
| Countries that End in R | 0 | - | 4.87 | 119,260 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,039 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,084 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 184,146 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,118 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,603 |
| Countries That End in Y | 0 | - | 4.91 | 186,156 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,124 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,382 |
| Countries that End in I | 0 | - | 4.94 | 135,399 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,156 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,122 |
| Countries That End in NIA | 0 | - | 4.92 | 110,137 |
| Countries That End in BIA | 0 | - | 4.93 | 149,700 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,895 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,868 |
| Countries That End in RIA | 0 | - | 4.93 | 127,121 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,511 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,866 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,336 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,797 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,351 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,895 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,418 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,585 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,020 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,714 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,866 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,561 |
| Countries that End in L | 0 | - | 4.94 | 157,220 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,418 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,372 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,858 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,141 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,524 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,602 |
