| Boundary Waters | 0 | - | 4.93 | 82,019 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,389 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,784 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 334,371 |
| World Geography on a Map #1 | 0 | - | 4.93 | 68,271 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,711 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,551 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,761,020 |
| Members of the Arab League | 0 | - | 4.86 | 66,293 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,494 |
| Himalayan Countries | 0 | - | 4.94 | 108,433 |
| Andean Countries | 0 | - | 4.91 | 60,210 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,393 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,858 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,474 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,858 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,265 |
| Danube Countries | 0 | - | 4.96 | 57,237 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,248 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,302 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,723 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,415 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,045 |
| European Landlocked Countries | 0 | - | 4.99 | 137,051 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,819 |
| Countries with the Most Species | 0 | - | 4.99 | 89,860 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,348 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,028 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,322 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,072 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,888 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,126 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,933 |
| Countries in the Alps | 0 | - | 4.84 | 103,878 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,449 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,553 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,294 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,388 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,907 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,359 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,565 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,780 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,702 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,423 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,185 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,034 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,035 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,590 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,683 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,253 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,584 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,969 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,054 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,605 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,427 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,839 |
| Largest Countries By Category | 0 | - | 4.97 | 146,451 |
| Countries by Countries | 0 | - | 4.95 | 55,611 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,560 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,211 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,635 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.99 | 136,278 |
| Western Europe Map Quiz | 0 | - | 4.87 | 89,724 |
| Tourist Attraction by Negative Review | 0 | - | 4.91 | 60,555 |
| Who Controls It? #1 | 0 | - | 4.83 | 45,881 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 183,324 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 111,898 |
| Longest International Borders | 0 | - | 4.99 | 236,669 |
| Countries with Three Borders | 0 | - | 4.96 | 32,136 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 36,867 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 41,382 |
| Demonym of Every Country | 0 | - | 4.91 | 50,821 |
| Pacific Ocean General Knowledge | 0 | - | 4.59 | 26,892 |
| Largest Deserts in the World | 0 | - | 4.02 | 41,640 |
| World Map Divided into Regions | 0 | - | 4.18 | 36,374 |
| World Capitals Quiz | 0 | - | 5.00 | 4,575,763 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,171,386 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,228,672 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,408,306 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 345,062 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,646 |
| Island Countries Quiz | 0 | - | 4.99 | 668,662 |
| Biggest Countries by Area | 0 | - | 5.00 | 947,466 |
| Northernmost Countries | 0 | - | 4.99 | 330,914 |
| Countries of South America | 0 | - | 5.00 | 809,941 |
| Countries of Oceania | 0 | - | 5.00 | 913,636 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,611,269 |
| Top World Languages | 0 | - | 4.92 | 723,268 |
| Analogies of Countries #1 | 0 | - | 4.87 | 63,452 |
| Globe Grid | 0 | - | 4.28 | 31,465 |
| Five Letter Geography #4 | 0 | - | 4.83 | 67,793 |
| Places With a Cardinal Direction in Their Name | 0 | - | 4.16 | 15,480 |
| Name a Valid Answer - Geography | 0 | - | 4.92 | 78,875 |
| Geography Mad Gab | 0 | - | 4.30 | 25,285 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,023 |
| Countries with Megacities | 0 | - | 4.99 | 201,827 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,353 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,957 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,236 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,871 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,019 |
| Global Cities on a World Map | 0 | - | 4.92 | 92,908 |
| Northernmost Capital Cities | 0 | - | 4.98 | 96,011 |
| Most Remote Capital Cities | 0 | - | 4.90 | 44,900 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,615 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 93,264 |
| Same Letter Country and Capital | 0 | - | 4.99 | 130,209 |
| Countries by Capital City | 0 | - | 4.99 | 51,471 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 67,187 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 106,182 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 74,390 |
| Moved Capital Cities | 0 | - | 4.96 | 67,959 |
| Countries by Official Language | 0 | - | 4.96 | 175,230 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,221 |
| Countries in their Native Language | 0 | - | 4.98 | 180,562 |
| Independence from Whom | 0 | - | 4.99 | 189,364 |
| Subdivisions by Country | 0 | - | 4.84 | 46,892 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,630 |
| Megadiverse Countries | 0 | - | 4.96 | 126,795 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,903 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,583 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,817 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,336 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,889 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,633 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,040 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,714 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,854 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,075 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,259 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,939 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,473 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,402 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,029 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,480 |
| World Map Quiz | 0 | - | 4.90 | 51,394 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,724 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,730 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,816 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 109,952 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,707 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,688 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,053 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,273 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 55,081 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,565 |
| Widest Countries East to West | 0 | - | 4.93 | 120,537 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,117 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,534 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,821 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,409 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,715 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,644 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,471 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,796 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,408 |
| Countries with Double Letters | 0 | - | 4.96 | 71,786 |
| Countries that End in N | 0 | - | 4.94 | 135,966 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 233,829 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 190,524 |
| Countries with W | 0 | - | 4.96 | 125,637 |
| Countries with Z | 0 | - | 4.98 | 264,634 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,681 |
| Countries That End in U | 0 | - | 4.95 | 109,327 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,356 |
| Countries that End in O | 0 | - | 4.92 | 148,641 |
| Countries that End in R | 0 | - | 4.85 | 97,304 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,083 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,143 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,685 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,684 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,631 |
| Countries That End in Y | 0 | - | 4.90 | 162,404 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,972 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,367 |
| Countries that End in I | 0 | - | 4.92 | 115,196 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,619 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,377 |
| Countries That End in NIA | 0 | - | 4.92 | 101,807 |
| Countries That End in BIA | 0 | - | 4.91 | 127,283 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,144 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 110,959 |
| Countries That End in RIA | 0 | - | 4.90 | 101,880 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,741 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 204,544 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,598 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,721 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,275 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,890 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,828 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 98,150 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,684 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 42,482 |
| Countries that End in L | 0 | - | 4.95 | 135,832 |
| "Land" Countries | 0 | - | 4.98 | 292,294 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 191,261 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 82,882 |
| City to Country Quiz #1 | 0 | - | 4.95 | 135,345 |
| City to Country Quiz #3 | 0 | - | 4.87 | 101,056 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,605 |
