| Countries by National Anthem | 0 | - | 4.92 | 71,123 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,173,811 |
| Landlocked Countries | 0 | - | 4.99 | 416,791 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,441 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,997 |
| Himalayan Countries | 0 | - | 4.95 | 136,552 |
| Andean Countries | 0 | - | 4.95 | 83,513 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,777 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,044 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,448 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,041 |
| Danube Countries | 0 | - | 4.97 | 71,442 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,237 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,858 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,176 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,163 |
| European Landlocked Countries | 0 | - | 4.99 | 146,140 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,791 |
| Countries with the Most Species | 0 | - | 4.99 | 101,873 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,918 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,338 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,517 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,167 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,818 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,201 |
| Countries in the Alps | 0 | - | 4.86 | 117,350 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,918 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,933 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,261 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,755 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,838 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,268 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,002 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,001 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,816 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,342 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,371 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,207 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,739 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,012 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,019 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,742 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,906 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,436 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,265 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,071 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,608 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,839 |
| Largest Countries By Category | 0 | - | 4.97 | 157,285 |
| Countries by Countries | 0 | - | 4.96 | 62,601 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,893 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,082 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,409 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,095 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,988 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,869 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,878 |
| Island Countries | 0 | - | 4.99 | 708,870 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,755 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,507 |
| Northernmost Countries | 0 | - | 4.99 | 359,434 |
| Countries of South America | 0 | - | 5.00 | 919,852 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,036 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,152 |
| "Land" Countries | 0 | - | 4.98 | 334,654 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,132 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,892 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,334 |
| Countries with Megacities | 0 | - | 4.99 | 249,054 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,182 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,569 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,519 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,541 |
| Countries by Official Language | 0 | - | 4.95 | 194,039 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,668 |
| Countries in their Native Language | 0 | - | 4.99 | 197,660 |
| Independence from Whom | 0 | - | 4.99 | 210,840 |
| Subdivisions by Country | 0 | - | 4.86 | 50,205 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,357 |
| Megadiverse Countries | 0 | - | 4.96 | 134,549 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,860 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,082 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,635 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,949 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,456 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,231 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,615 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,556 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,379 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,808 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,243 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,585 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,690 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,649 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,867 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,212 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,603 |
| World Map Quiz | 0 | - | 4.81 | 64,110 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,447 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,710 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,075 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,681 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,409 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,739 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,286 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,478 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,639 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,156 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,648 |
| Widest Countries East to West | 0 | - | 4.92 | 129,147 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,332 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,671 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,927 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,961 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,987 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,370 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,112 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,679 |
| Countries with Double Letters | 0 | - | 4.96 | 94,167 |
| Countries that End in N | 0 | - | 4.95 | 166,469 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,620 |
| Countries with Six Letters | 0 | - | 4.93 | 211,163 |
| Countries with W | 0 | - | 4.97 | 158,838 |
| Countries with Z | 0 | - | 4.98 | 288,810 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,056 |
| Countries That End in U | 0 | - | 4.95 | 119,940 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,181 |
| Countries that End in O | 0 | - | 4.92 | 158,878 |
| Countries that End in R | 0 | - | 4.87 | 118,519 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,295 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,791 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,758 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,821 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,398 |
| Countries That End in Y | 0 | - | 4.90 | 185,440 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,856 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,103 |
| Countries that End in I | 0 | - | 4.94 | 134,679 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,713 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,418 |
| Countries That End in NIA | 0 | - | 4.92 | 109,298 |
| Countries That End in BIA | 0 | - | 4.93 | 148,576 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,435 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,780 |
| Countries That End in RIA | 0 | - | 4.93 | 126,353 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,342 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,102 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,880 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,214 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,797 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,150 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,450 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,952 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,849 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,006 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,534 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,219 |
| Countries that End in L | 0 | - | 4.94 | 156,304 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,940 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,070 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,715 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,572 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,627 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,341 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,820 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,345 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,838 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,265 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,053 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,873 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,298 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,525 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,524 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,814,100 |
| One Border Countries | 0 | - | 4.98 | 466,473 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,604,786 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,289 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,935 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,350 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,100 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,106 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,940 |
| NATO Countries | 0 | - | 4.98 | 278,173 |
| EU Countries Quiz | 0 | - | 4.99 | 271,710 |
| Recently Independent Countries | 0 | - | 4.98 | 158,398 |
| French-Speaking Countries | 0 | - | 4.85 | 269,771 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,553 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,981 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,440 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,481 |
| German-Speaking Countries | 0 | - | 4.91 | 143,933 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,551 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,045 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,658 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,142 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,408 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,072 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,196 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 112,105 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,335 |
