| Countries by National Anthem | 0 | - | 4.92 | 71,124 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,175,849 |
| Landlocked Countries | 0 | - | 4.99 | 416,825 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,646 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,012 |
| Himalayan Countries | 0 | - | 4.95 | 136,570 |
| Andean Countries | 0 | - | 4.95 | 83,523 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,781 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,050 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,458 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,047 |
| Danube Countries | 0 | - | 4.97 | 71,445 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,246 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,862 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,181 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,169 |
| European Landlocked Countries | 0 | - | 4.99 | 146,143 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,799 |
| Countries with the Most Species | 0 | - | 4.99 | 101,919 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,925 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,341 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,518 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,170 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,823 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,202 |
| Countries in the Alps | 0 | - | 4.86 | 117,356 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,919 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,935 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,265 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,759 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,846 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,271 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,005 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,003 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,821 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,348 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,372 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,211 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,739 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,015 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,020 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,750 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,909 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,438 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,266 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,089 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,615 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,841 |
| Largest Countries By Category | 0 | - | 4.97 | 157,287 |
| Countries by Countries | 0 | - | 4.96 | 62,604 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,897 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,083 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,410 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,098 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,014 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,881 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,899 |
| Island Countries | 0 | - | 4.99 | 708,877 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,855 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,539 |
| Northernmost Countries | 0 | - | 4.99 | 359,453 |
| Countries of South America | 0 | - | 5.00 | 919,897 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,103 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,236 |
| "Land" Countries | 0 | - | 4.98 | 334,667 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,167 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,901 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,342 |
| Countries with Megacities | 0 | - | 4.99 | 249,069 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,194 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,578 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,531 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,546 |
| Countries by Official Language | 0 | - | 4.95 | 194,044 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,701 |
| Countries in their Native Language | 0 | - | 4.99 | 197,662 |
| Independence from Whom | 0 | - | 4.99 | 210,848 |
| Subdivisions by Country | 0 | - | 4.86 | 50,207 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,362 |
| Megadiverse Countries | 0 | - | 4.96 | 134,554 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,866 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,084 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,638 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,952 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,459 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,235 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,620 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,556 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,381 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,808 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,257 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,586 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,691 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,654 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,868 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,213 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,606 |
| World Map Quiz | 0 | - | 4.81 | 64,115 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,460 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,714 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,078 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,685 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,411 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,745 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,288 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,480 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,645 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,157 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,650 |
| Widest Countries East to West | 0 | - | 4.92 | 129,152 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,332 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,678 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,928 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,964 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,989 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,372 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,116 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,679 |
| Countries with Double Letters | 0 | - | 4.96 | 94,179 |
| Countries that End in N | 0 | - | 4.95 | 166,629 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,633 |
| Countries with Six Letters | 0 | - | 4.93 | 211,171 |
| Countries with W | 0 | - | 4.97 | 158,853 |
| Countries with Z | 0 | - | 4.98 | 288,828 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,064 |
| Countries That End in U | 0 | - | 4.95 | 119,948 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,187 |
| Countries that End in O | 0 | - | 4.92 | 158,880 |
| Countries that End in R | 0 | - | 4.87 | 118,520 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,297 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,795 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,762 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,823 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,398 |
| Countries That End in Y | 0 | - | 4.90 | 185,445 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,861 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,108 |
| Countries that End in I | 0 | - | 4.94 | 134,681 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,716 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,419 |
| Countries That End in NIA | 0 | - | 4.92 | 109,300 |
| Countries That End in BIA | 0 | - | 4.93 | 148,580 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,439 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,783 |
| Countries That End in RIA | 0 | - | 4.93 | 126,355 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,346 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,108 |
| 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 | 90,801 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,152 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,450 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,958 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,854 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,010 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,536 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,224 |
| Countries that End in L | 0 | - | 4.94 | 156,306 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,953 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,071 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,715 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,574 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,627 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,348 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,821 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,353 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,840 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,268 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,053 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,875 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,298 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,529 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,526 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,814,231 |
| One Border Countries | 0 | - | 4.98 | 466,491 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,604,902 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,294 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,943 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,352 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,102 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,110 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,969 |
| NATO Countries | 0 | - | 4.98 | 278,188 |
| EU Countries Quiz | 0 | - | 4.99 | 271,728 |
| Recently Independent Countries | 0 | - | 4.98 | 158,399 |
| French-Speaking Countries | 0 | - | 4.85 | 269,777 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,558 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,987 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,462 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,500 |
| German-Speaking Countries | 0 | - | 4.91 | 143,973 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,094,595 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,050 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,658 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,150 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 164,421 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,090 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 117,202 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 112,110 |
| Countries by Coldest Recorded Temperature | 0 | - | 4.83 | 111,340 |
