| Boundary Waters | 0 | - | 4.92 | 88,878 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,494 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,923 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,021,580 |
| Landlocked Countries | 0 | - | 4.99 | 427,899 |
| World Geography on a Map #1 | 0 | - | 4.94 | 74,030 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,259 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,291 |
| World Capitals Quiz | 0 | - | 5.00 | 5,118,352 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,205 |
| Himalayan Countries | 0 | - | 4.93 | 141,088 |
| Andean Countries | 0 | - | 4.94 | 85,940 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 65,040 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,688 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,589 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,785 |
| Danube Countries | 0 | - | 4.97 | 72,628 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,899 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,038 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,582 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 151,059 |
| European Landlocked Countries | 0 | - | 4.99 | 147,843 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,637 |
| Countries with the Most Species | 0 | - | 4.99 | 103,683 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,745 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,840 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,985 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,972 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,722 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,205 |
| Countries in the Alps | 0 | - | 4.87 | 119,076 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,171 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,286 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,103 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,236 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,213 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,437 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,660 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,050 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,551 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,365 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,987 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,860 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,722 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,981 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,080 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,310 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,775 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,893 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,937 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,653 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,748 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,655 |
| Largest Countries By Category | 0 | - | 4.97 | 159,217 |
| Countries by Countries | 0 | - | 4.97 | 63,872 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,554 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,465 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,311 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,816,988 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,656 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,038 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,941 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,676 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,592 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,707 |
| Longest International Borders | 0 | - | 4.99 | 266,113 |
| Countries with Three Borders | 0 | - | 4.96 | 36,867 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,463 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,599 |
| Demonym of Every Country | 0 | - | 4.90 | 61,719 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,202 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,603,975 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,234 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,753 |
| Island Countries | 0 | - | 4.99 | 713,306 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,957 |
| Northernmost Countries | 0 | - | 4.99 | 364,928 |
| Countries of South America | 0 | - | 5.00 | 935,178 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,732 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,895,288 |
| "Land" Countries | 0 | - | 4.98 | 339,220 |
| Top World Languages | 0 | - | 4.92 | 832,410 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,399,025 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,980 |
| All Country Flags of the World | 0 | - | 5.00 | 3,731,030 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,798 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,420 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,217 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,457,135 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,283 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,717 |
| Countries with Megacities | 0 | - | 4.99 | 268,288 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,346 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,444 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,691 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,558 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,730 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,655 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,691 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,168 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,447 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,605 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,556 |
| Countries by Capital City | 0 | - | 5.00 | 69,783 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,269 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,443 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,734 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 85,050 |
| Moved Capital Cities | 0 | - | 4.96 | 74,777 |
| Countries by Official Language | 0 | - | 4.95 | 196,364 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,133 |
| Countries in their Native Language | 0 | - | 4.99 | 200,075 |
| Independence from Whom | 0 | - | 4.99 | 213,594 |
| Subdivisions by Country | 0 | - | 4.87 | 50,689 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,789 |
| Megadiverse Countries | 0 | - | 4.96 | 149,900 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,240 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,607 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,874 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,277 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,581 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,970 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,398 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,665 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,226 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,304 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,936 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,534 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,543 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,258 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,685 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 72,022 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,942 |
| World Map Quiz | 0 | - | 4.81 | 66,007 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 160,278 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,881 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,672 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,313 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,792 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,116 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,635 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,754 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,915 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,794 |
| Tallest Countries North to South | 0 | - | 4.85 | 131,036 |
| Widest Countries East to West | 0 | - | 4.92 | 130,923 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,641 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,490 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,595 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,214 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,512 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,674 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,555 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,935 |
| Countries with Double Letters | 0 | - | 4.96 | 97,826 |
| Countries that End in N | 0 | - | 4.95 | 172,825 |
| Countries with Five Letters | 0 | - | 4.96 | 284,902 |
| Countries with Six Letters | 0 | - | 4.94 | 215,164 |
| Countries with W | 0 | - | 4.96 | 161,456 |
| Countries with Z | 0 | - | 4.98 | 293,233 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,827 |
| Countries That End in U | 0 | - | 4.95 | 121,475 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,583 |
| Countries that End in O | 0 | - | 4.92 | 160,441 |
| Countries that End in R | 0 | - | 4.87 | 119,325 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,093 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,305 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,870 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,319 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 144,004 |
| Countries That End in Y | 0 | - | 4.91 | 186,218 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,551 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,510 |
| Countries that End in I | 0 | - | 4.94 | 135,468 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,489 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,196 |
| Countries That End in NIA | 0 | - | 4.92 | 110,213 |
| Countries That End in BIA | 0 | - | 4.93 | 149,803 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 168,018 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,967 |
| Countries That End in RIA | 0 | - | 4.93 | 127,208 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,610 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,116 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,494 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 126,956 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,511 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,971 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,536 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,627 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,144 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,790 |
| Countries with the Word "And" | 0 | - | 4.99 | 118,005 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,703 |
| Countries that End in L | 0 | - | 4.94 | 157,309 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,892 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,398 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,928 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,199 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,586 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,792 |
