| All Countries by Northernmost Point on Land | 0 | - | 4.89 | 125,714 |
| 20 Countries on an Empty Map #1 | 0 | - | 4.94 | 62,101 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,636 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,516 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,539 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,814,519 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,201 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,185 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,886 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,181,852 |
| Landlocked Countries | 0 | - | 4.99 | 416,905 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 562,557 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,742,309 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,046 |
| Himalayan Countries | 0 | - | 4.95 | 136,601 |
| Andean Countries | 0 | - | 4.95 | 83,541 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,794 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,077 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,469 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,060 |
| Danube Countries | 0 | - | 4.97 | 71,454 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,265 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,866 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,212 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,193 |
| European Landlocked Countries | 0 | - | 4.99 | 146,155 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,813 |
| Countries with the Most Species | 0 | - | 4.99 | 102,058 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,939 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,342 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,522 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,179 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,828 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,207 |
| Countries in the Alps | 0 | - | 4.86 | 117,365 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,925 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,952 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,273 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,767 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,861 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,276 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,010 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,006 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,826 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,367 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,373 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,215 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,747 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,020 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,026 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,763 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,914 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,442 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,269 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,131 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,634 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,844 |
| Largest Countries By Category | 0 | - | 4.97 | 157,300 |
| Countries by Countries | 0 | - | 4.96 | 62,614 |
| Pixelated World Map | 0 | - | 5.00 | 142,915 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,908 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,087 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,413 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,209 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,907 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,145 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,822 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,418 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,110 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,699 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,409 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,680 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,629 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 303,945 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,126 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,913 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,943 |
| Island Countries | 0 | - | 4.99 | 708,898 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,620 |
| Northernmost Countries | 0 | - | 4.99 | 359,481 |
| Countries of South America | 0 | - | 5.00 | 919,974 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,357 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,530 |
| "Land" Countries | 0 | - | 4.98 | 334,698 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,756 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 123,411 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,373 |
| Countries with Megacities | 0 | - | 4.99 | 249,135 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,236 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,597 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,556 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,566 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,509 |
| Countries by Official Language | 0 | - | 4.95 | 194,064 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,794 |
| Countries in their Native Language | 0 | - | 4.99 | 197,673 |
| Independence from Whom | 0 | - | 4.99 | 210,863 |
| Subdivisions by Country | 0 | - | 4.86 | 50,210 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,380 |
| Megadiverse Countries | 0 | - | 4.96 | 134,559 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,884 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,087 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,640 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,954 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,466 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,241 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,638 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,566 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,384 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,811 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,316 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,592 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,695 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,660 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,872 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,219 |
| World Map Quiz | 0 | - | 4.81 | 64,128 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,728 |
| Countries by Founding Story | 0 | - | 4.95 | 76,902 |
| Countries by Road Signs | 0 | - | 4.98 | 53,443 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,094 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,690 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,421 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,755 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,296 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,484 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,649 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,157 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,654 |
| Widest Countries East to West | 0 | - | 4.92 | 129,161 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,333 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,687 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,933 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,969 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,994 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,379 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,121 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,681 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,688 |
| Countries with Double Letters | 0 | - | 4.96 | 94,208 |
| Countries that End in N | 0 | - | 4.95 | 167,159 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,667 |
| Countries with Six Letters | 0 | - | 4.93 | 211,203 |
| Countries with W | 0 | - | 4.97 | 158,880 |
| Countries with Z | 0 | - | 4.98 | 288,864 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,096 |
| Countries That End in U | 0 | - | 4.95 | 119,970 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,207 |
| Countries that End in O | 0 | - | 4.92 | 158,898 |
| Countries that End in R | 0 | - | 4.87 | 118,528 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,305 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,808 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,780 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,835 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,407 |
| Countries That End in Y | 0 | - | 4.90 | 185,449 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,878 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,115 |
| Countries that End in I | 0 | - | 4.94 | 134,685 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,727 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,423 |
| Countries That End in NIA | 0 | - | 4.92 | 109,308 |
| Countries That End in BIA | 0 | - | 4.93 | 148,596 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,449 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,793 |
| Countries That End in RIA | 0 | - | 4.93 | 126,358 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,358 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,135 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,886 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,219 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,814 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,160 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,465 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,970 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,866 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,025 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,542 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,235 |
| Countries that End in L | 0 | - | 4.94 | 156,308 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,001 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,074 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,720 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,581 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,631 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,364 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,826 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,369 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,851 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,283 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,057 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,877 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,299 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,529 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,529 |
| ALL First-Level Subdivisions of the World With a Map | 0 | - | 5.00 | 145,878 |
| All First-Level Subdivisions of Europe by Proximity | 0 | - | 4.84 | 76,699 |
| Top World Languages on a Map | 0 | - | 4.93 | 102,530 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.99 | 115,940 |
| 407 Islands on the World Map | 0 | - | 4.99 | 34,920 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,447 |
