| Countries by National Anthem | 0 | - | 4.93 | 71,263 |
| Boundary Waters | 0 | - | 4.92 | 88,506 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,200 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,167 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,508,493 |
| Landlocked Countries | 0 | - | 4.99 | 421,081 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,651 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,262 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,278 |
| World Capitals Quiz | 0 | - | 5.00 | 5,077,831 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,017 |
| Himalayan Countries | 0 | - | 4.95 | 138,334 |
| Andean Countries | 0 | - | 4.93 | 84,385 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,607 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,522 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,236 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,642 |
| Danube Countries | 0 | - | 4.97 | 71,905 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,883 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,310 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,107 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,579 |
| European Landlocked Countries | 0 | - | 4.99 | 147,039 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,469 |
| Countries with the Most Species | 0 | - | 4.99 | 103,154 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,621 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,536 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,678 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,475 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,155 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,563 |
| Countries in the Alps | 0 | - | 4.87 | 118,052 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,405 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,847 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,583 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,512 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,393 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,875 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,549 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,410 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,117 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,755 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,588 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,451 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,124 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,391 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,422 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,676 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,220 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,729 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,903 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,492 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,836 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,148 |
| Largest Countries By Category | 0 | - | 4.97 | 158,030 |
| Countries by Countries | 0 | - | 4.96 | 63,089 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,552 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,240 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,573 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,771,900 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,634 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,822 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,418 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,464 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,748 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,234 |
| Longest International Borders | 0 | - | 4.99 | 265,031 |
| Countries with Three Borders | 0 | - | 4.96 | 36,561 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,052 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,160 |
| Demonym of Every Country | 0 | - | 4.92 | 60,420 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,322 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,798 |
| Cities with the Most Opera Performances | 0 | - | 4.63 | 41,480 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,588,063 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,256 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,652 |
| Island Countries | 0 | - | 4.99 | 710,678 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,668 |
| Northernmost Countries | 0 | - | 4.99 | 361,542 |
| Countries of South America | 0 | - | 5.00 | 925,941 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,170 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,874,082 |
| "Land" Countries | 0 | - | 4.98 | 337,030 |
| Top World Languages | 0 | - | 4.92 | 823,013 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,417 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,440 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,647 |
| Countries with Megacities | 0 | - | 4.99 | 263,922 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,495 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,339 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,770 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,393 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,272 |
| Cities of Origin - American Popular Music | 0 | - | 4.04 | 9,458 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,362 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,470 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,572 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,328 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,128 |
| Countries by Capital City | 0 | - | 5.00 | 68,424 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,241 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,723 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,286 |
| Moved Capital Cities | 0 | - | 4.96 | 74,262 |
| Countries by Official Language | 0 | - | 4.95 | 195,057 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,125 |
| Countries in their Native Language | 0 | - | 4.99 | 198,620 |
| Independence from Whom | 0 | - | 4.99 | 211,872 |
| Subdivisions by Country | 0 | - | 4.86 | 50,386 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,566 |
| Megadiverse Countries | 0 | - | 4.96 | 134,935 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,923 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,296 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,872 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,076 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,996 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,540 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,337 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,978 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,595 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,053 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,481 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,824 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,133 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,911 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,296 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,440 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,270 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,897 |
| World Map Quiz | 0 | - | 4.81 | 64,965 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,739 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,261 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,906 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,166 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,889 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,951 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,806 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,925 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,221 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,392 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,504 |
| Widest Countries East to West | 0 | - | 4.92 | 129,565 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,429 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,268 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,087 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,696 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,479 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,764 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,333 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,782 |
| Countries with Double Letters | 0 | - | 4.96 | 95,963 |
| Countries that End in N | 0 | - | 4.95 | 170,866 |
| Countries with Five Letters | 0 | - | 4.96 | 281,990 |
| Countries with Six Letters | 0 | - | 4.94 | 213,280 |
| Countries with W | 0 | - | 4.97 | 160,132 |
| Countries with Z | 0 | - | 4.98 | 291,158 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,487 |
| Countries That End in U | 0 | - | 4.95 | 120,737 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,259 |
| Countries that End in O | 0 | - | 4.92 | 159,430 |
| Countries that End in R | 0 | - | 4.87 | 118,900 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,668 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,857 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,554 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,381 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,288 |
| Countries That End in Y | 0 | - | 4.91 | 185,808 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,751 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,730 |
| Countries that End in I | 0 | - | 4.94 | 135,030 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,919 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,753 |
| Countries That End in NIA | 0 | - | 4.92 | 109,700 |
| Countries That End in BIA | 0 | - | 4.93 | 149,098 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,990 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,319 |
| Countries That End in RIA | 0 | - | 4.93 | 126,735 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,912 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,312 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,541 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,944 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,510 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,510 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,927 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,413 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,422 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,361 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,157 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,853 |
| Countries that End in L | 0 | - | 4.94 | 156,747 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,194 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,238 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,951 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,891 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,917 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,565 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,514 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,892 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,418 |
