| Boundary Waters | 0 | - | 4.92 | 88,082 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,853 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,395 |
| Countries by National Anthem | 0 | - | 4.93 | 71,050 |
| Landlocked Countries | 0 | - | 4.99 | 414,383 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,982,957 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,219 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,919 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,185 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,912 |
| Himalayan Countries | 0 | - | 4.95 | 135,630 |
| Andean Countries | 0 | - | 4.94 | 82,977 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,335 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,384 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,038 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,715 |
| Danube Countries | 0 | - | 4.97 | 71,156 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,861 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,615 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,645 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,556 |
| European Landlocked Countries | 0 | - | 4.99 | 145,855 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,319 |
| Countries with the Most Species | 0 | - | 4.99 | 95,288 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,474 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,225 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,396 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,005 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,640 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,008 |
| Countries in the Alps | 0 | - | 4.86 | 116,951 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,656 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,407 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,078 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,486 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,266 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,070 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,669 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,823 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,554 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,129 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,223 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,088 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,515 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,807 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,808 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,231 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,721 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,299 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,875 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,708 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,924 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,665 |
| Largest Countries By Category | 0 | - | 4.97 | 156,885 |
| Countries by Countries | 0 | - | 4.96 | 62,338 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,523 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,993 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,843 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,786 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,515 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,611 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,258 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,642 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,686 |
| Longest International Borders | 0 | - | 4.99 | 263,941 |
| Countries with Three Borders | 0 | - | 4.96 | 36,235 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,640 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,729 |
| Demonym of Every Country | 0 | - | 4.91 | 58,719 |
| World Capitals Quiz | 0 | - | 5.00 | 5,036,648 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,723,076 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,222 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,909 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,572,813 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,405 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,218 |
| Island Countries | 0 | - | 4.99 | 707,912 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,507 |
| Northernmost Countries | 0 | - | 4.99 | 358,138 |
| Countries of South America | 0 | - | 5.00 | 916,097 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,209 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,003 |
| "Land" Countries | 0 | - | 4.98 | 333,858 |
| Top World Languages | 0 | - | 4.92 | 814,129 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,191 |
| Globe Grid | 0 | - | 4.32 | 31,939 |
| World Map Divided into Regions | 0 | - | 4.19 | 41,380 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,606 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,629 |
| Countries with Megacities | 0 | - | 4.99 | 247,580 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,469 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,208 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,883 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,131 |
| Cities with the Most Opera Performances | 0 | - | 4.61 | 40,661 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,966 |
| Cities of Origin - American Popular Music | 0 | - | 4.04 | 9,431 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,121 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,753 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,712 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,800 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,630 |
| Countries by Capital City | 0 | - | 5.00 | 66,835 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,436 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,996 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,484 |
| Moved Capital Cities | 0 | - | 4.96 | 73,664 |
| Countries by Official Language | 0 | - | 4.95 | 192,940 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,360 |
| Countries in their Native Language | 0 | - | 4.99 | 196,788 |
| Independence from Whom | 0 | - | 4.99 | 209,895 |
| Subdivisions by Country | 0 | - | 4.86 | 50,103 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,895 |
| Megadiverse Countries | 0 | - | 4.97 | 133,965 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,952 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,955 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,467 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,877 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,759 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,055 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,183 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,219 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,251 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,761 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,736 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,455 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,550 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,536 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,729 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,062 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,508 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,809 |
| World Map Quiz | 0 | - | 4.81 | 63,642 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,130 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,412 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,547 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,326 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,069 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,004 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,984 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,170 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,375 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,001 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,419 |
| Widest Countries East to West | 0 | - | 4.92 | 128,882 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,245 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,329 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,603 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,752 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,700 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,125 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 72,554 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,612 |
| Countries with Double Letters | 0 | - | 4.96 | 93,538 |
| Countries that End in N | 0 | - | 4.94 | 157,024 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,846 |
| Countries with Six Letters | 0 | - | 4.93 | 210,521 |
| Countries with W | 0 | - | 4.97 | 158,325 |
| Countries with Z | 0 | - | 4.98 | 288,054 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,645 |
| Countries That End in U | 0 | - | 4.95 | 119,571 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,725 |
| Countries that End in O | 0 | - | 4.92 | 158,607 |
| Countries that End in R | 0 | - | 4.87 | 118,324 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,889 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,251 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,439 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,568 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,111 |
| Countries That End in Y | 0 | - | 4.90 | 185,247 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,492 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,792 |
| Countries that End in I | 0 | - | 4.94 | 134,485 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,323 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,243 |
| Countries That End in NIA | 0 | - | 4.92 | 109,061 |
| Countries That End in BIA | 0 | - | 4.92 | 147,776 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,158 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,564 |
| Countries That End in RIA | 0 | - | 4.93 | 126,140 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,095 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,463 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,593 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,961 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,450 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,968 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,196 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,719 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,585 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,851 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,896 |
| Countries that End in L | 0 | - | 4.94 | 156,055 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,654 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,005 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,563 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,358 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,473 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,614 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,431 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 139,395 |
