| Boundary Waters | 0 | - | 4.92 | 88,613 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,286 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,359 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,643,118 |
| Landlocked Countries | 0 | - | 4.99 | 422,741 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,749 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,518 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,531 |
| World Capitals Quiz | 0 | - | 5.00 | 5,088,017 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,899 |
| Himalayan Countries | 0 | - | 4.95 | 139,073 |
| Andean Countries | 0 | - | 4.93 | 84,823 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,050 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,144 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,630 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,944 |
| Danube Countries | 0 | - | 4.97 | 72,110 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,145 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,514 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,478 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,972 |
| European Landlocked Countries | 0 | - | 4.99 | 147,246 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,787 |
| Countries with the Most Species | 0 | - | 4.99 | 103,321 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,915 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,636 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,757 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,604 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,332 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,752 |
| Countries in the Alps | 0 | - | 4.87 | 118,328 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,615 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,218 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,729 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,688 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,601 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,009 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,766 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,578 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,231 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,938 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,700 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,578 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,308 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,546 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,612 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,081 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,376 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,567 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,221 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,355 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,362 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,295 |
| Largest Countries By Category | 0 | - | 4.97 | 158,361 |
| Countries by Countries | 0 | - | 4.96 | 63,328 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,789 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,313 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,761 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,784,111 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,769 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,878 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,568 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,522 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,198 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,348 |
| Longest International Borders | 0 | - | 4.99 | 265,336 |
| Countries with Three Borders | 0 | - | 4.96 | 36,643 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,166 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,281 |
| Demonym of Every Country | 0 | - | 4.91 | 60,879 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,300 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,592,542 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,743 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,803 |
| Island Countries | 0 | - | 4.99 | 711,314 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,858 |
| Northernmost Countries | 0 | - | 4.99 | 362,331 |
| Countries of South America | 0 | - | 5.00 | 928,446 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,283 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,879,645 |
| "Land" Countries | 0 | - | 4.98 | 337,561 |
| Top World Languages | 0 | - | 4.92 | 825,486 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,385,603 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,113 |
| All Country Flags of the World | 0 | - | 5.00 | 3,685,899 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,582 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,343 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,642 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,442 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,279 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,126 |
| Countries with Megacities | 0 | - | 4.99 | 265,108 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,938 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,602 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,204 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,671 |
| Biggest Cities in the World | 0 | - | 4.91 | 802,001 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,694 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,651 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,623 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,763 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,617 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,474 |
| Countries by Capital City | 0 | - | 5.00 | 68,763 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,448 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,888 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,442 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,479 |
| Moved Capital Cities | 0 | - | 4.96 | 74,402 |
| Countries by Official Language | 0 | - | 4.95 | 195,410 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,590 |
| Countries in their Native Language | 0 | - | 4.99 | 199,188 |
| Independence from Whom | 0 | - | 4.99 | 212,285 |
| Subdivisions by Country | 0 | - | 4.87 | 50,467 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,863 |
| Megadiverse Countries | 0 | - | 4.96 | 135,076 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,220 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,396 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,275 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,132 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,227 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,643 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,575 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,351 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,697 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,173 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,851 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,932 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,250 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,005 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,400 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,534 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,446 |
| World Map Quiz | 0 | - | 4.81 | 65,197 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,683 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,423 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,246 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,364 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,078 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,465 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,979 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,088 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,367 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,485 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,628 |
| Widest Countries East to West | 0 | - | 4.92 | 129,724 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,475 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,471 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,150 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,819 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,664 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,943 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,399 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,815 |
| Countries with Double Letters | 0 | - | 4.96 | 96,414 |
| Countries that End in N | 0 | - | 4.95 | 171,294 |
| Countries with Five Letters | 0 | - | 4.96 | 282,794 |
| Countries with Six Letters | 0 | - | 4.94 | 213,742 |
| Countries with W | 0 | - | 4.97 | 160,454 |
| Countries with Z | 0 | - | 4.98 | 291,651 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,820 |
| Countries That End in U | 0 | - | 4.95 | 120,910 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,585 |
| Countries that End in O | 0 | - | 4.92 | 159,567 |
| Countries that End in R | 0 | - | 4.87 | 119,005 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,767 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,257 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,773 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,545 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,462 |
| Countries That End in Y | 0 | - | 4.91 | 185,925 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,020 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,942 |
| Countries that End in I | 0 | - | 4.94 | 135,141 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,205 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,863 |
| Countries That End in NIA | 0 | - | 4.92 | 109,842 |
| Countries That End in BIA | 0 | - | 4.93 | 149,275 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,191 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,487 |
| Countries That End in RIA | 0 | - | 4.93 | 126,862 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,081 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,812 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,803 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,238 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,790 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,626 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,086 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,463 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,597 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,471 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,380 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,067 |
| Countries that End in L | 0 | - | 4.94 | 156,899 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,135 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,286 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,078 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,002 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,046 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,901 |
