| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,359,823 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,314 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 62,992 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,797,067 |
| Landlocked Countries | 0 | - | 4.99 | 412,822 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 550,343 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,845,114 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,288 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 192,848 |
| All Countries by Northernmost Point on Land | 0 | - | 4.89 | 124,845 |
| 20 Countries on an Empty Map #1 | 0 | - | 4.94 | 61,685 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,550 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,205 |
| Himalayan Countries | 0 | - | 4.95 | 135,031 |
| Andean Countries | 0 | - | 4.94 | 82,648 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,073 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,966 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,744 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,452 |
| Danube Countries | 0 | - | 4.97 | 70,986 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,629 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,450 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,268 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,182 |
| European Landlocked Countries | 0 | - | 4.99 | 145,658 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,034 |
| Countries with the Most Species | 0 | - | 4.99 | 95,179 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,179 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,172 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,331 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,904 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,500 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,860 |
| Countries in the Alps | 0 | - | 4.87 | 116,674 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,459 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,050 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,935 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,315 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,058 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,932 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,454 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,675 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,044 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,963 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,163 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,992 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,356 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,667 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,667 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,845 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,554 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,195 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,656 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,790 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,336 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,527 |
| Largest Countries By Category | 0 | - | 4.97 | 156,595 |
| Countries by Countries | 0 | - | 4.96 | 62,155 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,199 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,928 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,303 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,359 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 97,990 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,647 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,166 |
| Pixelated World Map | 0 | - | 5.00 | 141,722 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,587 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,408 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,801 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,216 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,955 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,801 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,943 |
| Island Countries | 0 | - | 4.99 | 707,203 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,241 |
| Northernmost Countries | 0 | - | 4.99 | 357,194 |
| Countries of South America | 0 | - | 5.00 | 913,233 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,415 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,844,798 |
| "Land" Countries | 0 | - | 4.98 | 333,397 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,849 |
| Countries with Megacities | 0 | - | 4.99 | 246,118 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,759 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,725 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,226 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,659 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,559 |
| Countries by Official Language | 0 | - | 4.95 | 192,574 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,838 |
| Countries in their Native Language | 0 | - | 4.99 | 196,439 |
| Independence from Whom | 0 | - | 4.99 | 209,431 |
| Subdivisions by Country | 0 | - | 4.86 | 50,028 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,576 |
| Megadiverse Countries | 0 | - | 4.97 | 133,827 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,634 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,873 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,366 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,829 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,527 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,576 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,057 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,169 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,710 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,359 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,357 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,422 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,437 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,600 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,975 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,279 |
| World Map Quiz | 0 | - | 4.81 | 63,346 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,204 |
| Countries by Sports in 60 Seconds | 0 | - | 4.91 | 141,081 |
| Countries by Founding Story | 0 | - | 4.95 | 76,440 |
| Countries by Road Signs | 0 | - | 4.98 | 52,958 |
| Countries That Do Not Border | 0 | - | 4.99 | 59,107 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,140 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,867 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,841 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,482 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,754 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,955 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,163 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,869 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,247 |
| Widest Countries East to West | 0 | - | 4.92 | 128,512 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,069 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,516 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,616 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,512 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,941 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 69,029 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,551 |
| Countries With the Tallest People | 0 | - | 4.91 | 94,465 |
| Countries with Double Letters | 0 | - | 4.97 | 93,201 |
| Countries that End in N | 0 | - | 4.94 | 156,267 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,459 |
| Countries with Six Letters | 0 | - | 4.93 | 210,160 |
| Countries with W | 0 | - | 4.97 | 158,084 |
| Countries with Z | 0 | - | 4.98 | 287,257 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,417 |
| Countries That End in U | 0 | - | 4.95 | 119,435 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,307 |
| Countries that End in O | 0 | - | 4.92 | 158,465 |
| Countries that End in R | 0 | - | 4.86 | 118,190 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,805 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,848 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,172 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,373 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,560 |
| Countries That End in Y | 0 | - | 4.90 | 185,144 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,160 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,536 |
| Countries that End in I | 0 | - | 4.94 | 134,293 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,000 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,135 |
| Countries That End in NIA | 0 | - | 4.92 | 108,918 |
| Countries That End in BIA | 0 | - | 4.92 | 147,600 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 165,954 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,389 |
| Countries That End in RIA | 0 | - | 4.93 | 125,998 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,910 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 224,946 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,418 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,792 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,229 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,864 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,012 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,540 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,380 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,765 |
| Countries with the Word "And" | 0 | - | 4.99 | 115,998 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,675 |
| Countries with the Highest Scrabble Score | 0 | - | 4.97 | 62,969 |
| Countries that End in L | 0 | - | 4.94 | 155,633 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,620 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,963 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,448 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,211 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,363 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,102 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 198,921 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 125,820 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,040 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,226 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,422 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,556 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,142 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,386 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,252 |
| ALL First-Level Subdivisions of the World With a Map | 0 | - | 5.00 | 144,392 |
| All First-Level Subdivisions of Europe by Proximity | 0 | - | 4.84 | 76,227 |
| Top World Languages on a Map | 0 | - | 4.93 | 102,157 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.98 | 114,920 |
| 407 Islands on the World Map | 0 | - | 4.99 | 34,627 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,077 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,348 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,960 |
