| All Countries by Northernmost Point on Land | 0 | - | 4.89 | 125,774 |
| 20 Countries on an Empty Map #1 | 0 | - | 4.94 | 62,119 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,718 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,668 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,575 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,815,755 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,251 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,281 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,969 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,203,751 |
| Landlocked Countries | 0 | - | 4.99 | 417,168 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 563,310 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,744,494 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,179 |
| Himalayan Countries | 0 | - | 4.95 | 136,735 |
| Andean Countries | 0 | - | 4.95 | 83,588 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,849 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,137 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,505 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,111 |
| Danube Countries | 0 | - | 4.97 | 71,478 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,291 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,890 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,279 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,268 |
| European Landlocked Countries | 0 | - | 4.99 | 146,181 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,853 |
| Countries with the Most Species | 0 | - | 4.99 | 102,319 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,987 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,352 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,533 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,201 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,846 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,224 |
| Countries in the Alps | 0 | - | 4.86 | 117,411 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,954 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,021 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,295 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,794 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,892 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,313 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,058 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,030 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,853 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,389 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,389 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,229 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,779 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,039 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,048 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,824 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,931 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,461 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,294 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,302 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,724 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,868 |
| Largest Countries By Category | 0 | - | 4.97 | 157,347 |
| Countries by Countries | 0 | - | 4.96 | 62,653 |
| Pixelated World Map | 0 | - | 5.00 | 142,948 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,942 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,100 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,415 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,249 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,942 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,164 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,922 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,447 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,137 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,723 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,506 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,736 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,684 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 304,050 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,427 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,049 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,149 |
| Island Countries | 0 | - | 4.99 | 709,047 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,973 |
| Northernmost Countries | 0 | - | 4.99 | 359,657 |
| Countries of South America | 0 | - | 5.00 | 920,405 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,913 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,487 |
| "Land" Countries | 0 | - | 4.98 | 335,037 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,785 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 123,457 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,457 |
| Countries with Megacities | 0 | - | 4.99 | 249,358 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,312 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,648 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,633 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,622 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,553 |
| Countries by Official Language | 0 | - | 4.95 | 194,199 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,000 |
| Countries in their Native Language | 0 | - | 4.99 | 197,796 |
| Independence from Whom | 0 | - | 4.99 | 210,942 |
| Subdivisions by Country | 0 | - | 4.86 | 50,219 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,432 |
| Megadiverse Countries | 0 | - | 4.96 | 134,592 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,965 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,103 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,657 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,960 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,508 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,264 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,683 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,587 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,399 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,818 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,440 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,608 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,708 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,675 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,886 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,245 |
| World Map Quiz | 0 | - | 4.81 | 64,202 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,758 |
| Countries by Founding Story | 0 | - | 4.95 | 76,926 |
| Countries by Road Signs | 0 | - | 4.98 | 53,475 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,153 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,728 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,460 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,841 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,331 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,512 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,676 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,173 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,981 |
| Widest Countries East to West | 0 | - | 4.92 | 129,207 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,339 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,719 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,944 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,989 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,034 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,405 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,144 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,687 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,708 |
| Countries with Double Letters | 0 | - | 4.96 | 94,440 |
| Countries that End in N | 0 | - | 4.95 | 168,337 |
| Countries with Five Letters | 0 | - | 4.96 | 269,277 |
| Countries with Six Letters | 0 | - | 4.93 | 211,634 |
| Countries with W | 0 | - | 4.97 | 159,054 |
| Countries with Z | 0 | - | 4.98 | 289,126 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,259 |
| Countries That End in U | 0 | - | 4.95 | 120,115 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,312 |
| Countries that End in O | 0 | - | 4.92 | 158,983 |
| Countries that End in R | 0 | - | 4.87 | 118,578 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,368 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,901 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,842 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,889 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,471 |
| Countries That End in Y | 0 | - | 4.90 | 185,497 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,946 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,177 |
| Countries that End in I | 0 | - | 4.94 | 134,717 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,775 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,451 |
| Countries That End in NIA | 0 | - | 4.92 | 109,342 |
| Countries That End in BIA | 0 | - | 4.93 | 148,639 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,495 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,834 |
| Countries That End in RIA | 0 | - | 4.93 | 126,389 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,410 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,213 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,944 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,275 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,890 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,189 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,504 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,027 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,907 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,071 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,596 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,301 |
| Countries that End in L | 0 | - | 4.94 | 156,353 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,178 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,094 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,740 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,601 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,657 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,421 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,882 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,417 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,885 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,336 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,091 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,886 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,314 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,539 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,543 |
| ALL First-Level Subdivisions of the World With a Map | 0 | - | 5.00 | 145,983 |
| All First-Level Subdivisions of Europe by Proximity | 0 | - | 4.84 | 76,738 |
| Top World Languages on a Map | 0 | - | 4.93 | 102,567 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.99 | 116,005 |
| 407 Islands on the World Map | 0 | - | 4.99 | 34,938 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,473 |
