| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,734 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,989 |
| Landlocked Countries | 0 | - | 4.99 | 422,975 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,657 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,660,664 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 91,367 |
| Top Rice-Producing Countries | 0 | - | 4.95 | 99,256 |
| Top Chocolate Growing Countries | 0 | - | 4.93 | 61,954 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,006 |
| Himalayan Countries | 0 | - | 4.95 | 139,170 |
| Andean Countries | 0 | - | 4.93 | 84,866 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,084 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,223 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,666 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,974 |
| Danube Countries | 0 | - | 4.97 | 72,130 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,181 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,534 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,523 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,034 |
| European Landlocked Countries | 0 | - | 4.99 | 147,269 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,830 |
| Countries with the Most Species | 0 | - | 4.99 | 103,343 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,958 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,646 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,766 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,613 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,362 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,779 |
| Countries in the Alps | 0 | - | 4.87 | 118,357 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,731 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,275 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,753 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,704 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,628 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,037 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,812 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,603 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,246 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,948 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,719 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,587 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,318 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,561 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,630 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,149 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,399 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,715 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,243 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,481 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,414 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,308 |
| Largest Countries By Category | 0 | - | 4.97 | 158,391 |
| Countries by Countries | 0 | - | 4.96 | 63,358 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,835 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,323 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,591 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,788 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,785,606 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,477 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,825 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,958 |
| Island Countries | 0 | - | 4.99 | 711,404 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,103 |
| Northernmost Countries | 0 | - | 4.99 | 362,462 |
| Countries of South America | 0 | - | 5.00 | 928,730 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,655 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,880,380 |
| "Land" Countries | 0 | - | 4.98 | 337,619 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,849 |
| Top 10 Countries with the Most Volcanoes | 0 | - | 4.53 | 77,543 |
| Top 10 Countries with the Most Time Zones | 0 | - | 4.68 | 155,748 |
| Top 10 Most Protestant European Countries | 0 | - | 4.49 | 36,696 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,386,117 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,188 |
| Countries with Megacities | 0 | - | 4.99 | 265,273 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,012 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,629 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,263 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,705 |
| Countries by Official Language | 0 | - | 4.95 | 195,461 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,658 |
| Countries in their Native Language | 0 | - | 4.99 | 199,236 |
| Independence from Whom | 0 | - | 4.99 | 212,325 |
| Subdivisions by Country | 0 | - | 4.87 | 50,481 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,900 |
| Megadiverse Countries | 0 | - | 4.96 | 135,093 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,263 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,412 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,292 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,139 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,266 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,656 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,608 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,415 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,705 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,181 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,895 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,947 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,265 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,012 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,421 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,543 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,519 |
| World Map Quiz | 0 | - | 4.81 | 65,244 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,808 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,448 |
| Countries by Founding Story | 0 | - | 4.95 | 77,455 |
| Countries by Road Signs | 0 | - | 4.98 | 54,108 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,297 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,399 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,109 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,553 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,006 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,116 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,394 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,494 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,646 |
| Widest Countries East to West | 0 | - | 4.92 | 129,746 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,480 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,504 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,288 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,832 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,694 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,968 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,408 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,821 |
| Countries with Double Letters | 0 | - | 4.96 | 96,463 |
| Countries that End in N | 0 | - | 4.95 | 171,351 |
| Countries with Five Letters | 0 | - | 4.96 | 282,888 |
| Countries with Six Letters | 0 | - | 4.94 | 213,806 |
| Countries with W | 0 | - | 4.96 | 160,492 |
| Countries with Z | 0 | - | 4.98 | 291,712 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,853 |
| Countries That End in U | 0 | - | 4.95 | 120,936 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,629 |
| Countries that End in O | 0 | - | 4.92 | 159,590 |
| Countries that End in R | 0 | - | 4.87 | 119,020 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,780 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,303 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,803 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,577 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,483 |
| Countries That End in Y | 0 | - | 4.91 | 185,938 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,053 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,979 |
| Countries that End in I | 0 | - | 4.94 | 135,165 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,237 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,875 |
| Countries That End in NIA | 0 | - | 4.92 | 109,854 |
| Countries That End in BIA | 0 | - | 4.93 | 149,304 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,212 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,519 |
| Countries That End in RIA | 0 | - | 4.93 | 126,877 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,107 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,876 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,842 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,271 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,817 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,637 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,107 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,467 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,624 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,484 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,402 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,094 |
| Countries that End in L | 0 | - | 4.94 | 156,915 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,243 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,287 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,088 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,016 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,059 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,934 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,802 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,224 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,942 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,598 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,963 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,139 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,803 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,372 |
| One Border Countries | 0 | - | 4.98 | 470,437 |
| Countries that Eat the Most Fish | 0 | - | 4.26 | 71,967 |
| Top 10 Countries with the Most Fishermen | 0 | - | 4.30 | 45,406 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,838,504 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,637,959 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,034 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,423 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,298 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,855 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,311 |
| Countries by National Anthem | 0 | - | 4.93 | 71,320 |
| NATO Countries | 0 | - | 4.98 | 282,014 |
| EU Countries Quiz | 0 | - | 4.99 | 276,124 |
| Recently Independent Countries | 0 | - | 4.98 | 159,586 |
| French-Speaking Countries | 0 | - | 4.85 | 271,087 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,932 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,901 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,812 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 275,074 |
