| All Countries by Northernmost Point on Land | 0 | - | 4.89 | 125,665 |
| 20 Countries on an Empty Map #1 | 0 | - | 4.94 | 62,080 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,567 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,387 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,516 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,813,617 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,148 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,125 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,826 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,165,166 |
| Landlocked Countries | 0 | - | 4.99 | 416,676 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 561,980 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,740,691 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,945 |
| Himalayan Countries | 0 | - | 4.95 | 136,511 |
| Andean Countries | 0 | - | 4.95 | 83,494 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,756 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,010 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,427 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,030 |
| Danube Countries | 0 | - | 4.97 | 71,433 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,218 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,850 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,160 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,129 |
| European Landlocked Countries | 0 | - | 4.99 | 146,130 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,765 |
| Countries with the Most Species | 0 | - | 4.99 | 101,622 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,900 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,330 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,510 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,161 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,809 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,192 |
| Countries in the Alps | 0 | - | 4.86 | 117,328 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,905 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,899 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,253 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,741 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,824 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,255 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,988 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,994 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,807 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,331 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,367 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,203 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,730 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,999 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,005 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,717 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,896 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,430 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,248 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,017 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,569 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,829 |
| Largest Countries By Category | 0 | - | 4.97 | 157,258 |
| Countries by Countries | 0 | - | 4.96 | 62,593 |
| Pixelated World Map | 0 | - | 5.00 | 142,881 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,874 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,081 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,409 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,183 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,895 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,127 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,749 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,396 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,085 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,668 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,322 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,628 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,590 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 303,876 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,857 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,834 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,794 |
| Island Countries | 0 | - | 4.99 | 708,815 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,364 |
| Northernmost Countries | 0 | - | 4.99 | 359,390 |
| Countries of South America | 0 | - | 5.00 | 919,693 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,692 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,858,812 |
| "Land" Countries | 0 | - | 4.98 | 334,609 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,745 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 123,366 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,277 |
| Countries with Megacities | 0 | - | 4.99 | 248,950 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,130 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,548 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,485 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,502 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,461 |
| Countries by Official Language | 0 | - | 4.95 | 194,010 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,555 |
| Countries in their Native Language | 0 | - | 4.99 | 197,635 |
| Independence from Whom | 0 | - | 4.99 | 210,807 |
| Subdivisions by Country | 0 | - | 4.86 | 50,197 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,331 |
| Megadiverse Countries | 0 | - | 4.96 | 134,541 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,833 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,075 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,628 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,948 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,442 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,213 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,588 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,548 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,371 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,807 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,163 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,579 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,687 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,642 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,859 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,202 |
| World Map Quiz | 0 | - | 4.81 | 64,094 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,696 |
| Countries by Founding Story | 0 | - | 4.95 | 76,874 |
| Countries by Road Signs | 0 | - | 4.98 | 53,417 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,061 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,668 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,397 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,713 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,268 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,463 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,628 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,149 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,637 |
| Widest Countries East to West | 0 | - | 4.92 | 129,139 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,329 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,655 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,921 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,959 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,979 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,359 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,100 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,675 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,675 |
| Countries with Double Letters | 0 | - | 4.96 | 94,131 |
| Countries that End in N | 0 | - | 4.95 | 165,684 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,581 |
| Countries with Six Letters | 0 | - | 4.93 | 211,134 |
| Countries with W | 0 | - | 4.97 | 158,806 |
| Countries with Z | 0 | - | 4.98 | 288,753 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,026 |
| Countries That End in U | 0 | - | 4.95 | 119,913 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,156 |
| Countries that End in O | 0 | - | 4.92 | 158,861 |
| Countries that End in R | 0 | - | 4.87 | 118,509 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,284 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,749 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,733 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,809 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,374 |
| Countries That End in Y | 0 | - | 4.90 | 185,420 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,830 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,089 |
| Countries that End in I | 0 | - | 4.94 | 134,667 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,690 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,408 |
| Countries That End in NIA | 0 | - | 4.92 | 109,295 |
| Countries That End in BIA | 0 | - | 4.93 | 148,564 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,424 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,768 |
| Countries That End in RIA | 0 | - | 4.93 | 126,346 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,330 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,076 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,867 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,204 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,781 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,141 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,435 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,939 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,832 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,997 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,519 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,202 |
| Countries that End in L | 0 | - | 4.94 | 156,289 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,884 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,067 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,711 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,562 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,613 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,318 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,806 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,323 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,820 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,248 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,046 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,869 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,294 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,522 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,518 |
| ALL First-Level Subdivisions of the World With a Map | 0 | - | 5.00 | 145,801 |
| All First-Level Subdivisions of Europe by Proximity | 0 | - | 4.84 | 76,682 |
| Top World Languages on a Map | 0 | - | 4.93 | 102,518 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.99 | 115,896 |
| 407 Islands on the World Map | 0 | - | 4.99 | 34,903 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,426 |
