| Countries with Double Letters | 0 | - | 4.96 | 71,835 |
| Countries that End in N | 0 | - | 4.94 | 136,016 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 233,897 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 190,588 |
| Countries with W | 0 | - | 4.96 | 125,680 |
| Countries with Z | 0 | - | 4.98 | 264,705 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,695 |
| Countries That End in U | 0 | - | 4.95 | 109,351 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,395 |
| Countries that End in O | 0 | - | 4.92 | 148,657 |
| Countries that End in R | 0 | - | 4.85 | 97,322 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,116 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,199 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,716 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,706 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,647 |
| Countries That End in Y | 0 | - | 4.90 | 162,424 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 163,008 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,393 |
| Countries that End in I | 0 | - | 4.92 | 115,205 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,647 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,391 |
| Countries That End in NIA | 0 | - | 4.92 | 101,826 |
| Countries That End in BIA | 0 | - | 4.91 | 127,317 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,171 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 110,982 |
| Countries That End in RIA | 0 | - | 4.90 | 101,900 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,770 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 204,633 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,634 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,772 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,309 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,911 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,853 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 98,181 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,695 |
| Countries with the Word "And" | 0 | - | 4.98 | 85,079 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 42,508 |
| Countries that End in L | 0 | - | 4.95 | 135,852 |
| "Land" Countries | 0 | - | 4.98 | 292,365 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 191,290 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 82,893 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 334,557 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,778,706 |
| Countries with Four Letters | 0 | - | 4.99 | 378,726 |
| Members of the Arab League | 0 | - | 4.86 | 66,382 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,551 |
| Himalayan Countries | 0 | - | 4.94 | 108,502 |
| Andean Countries | 0 | - | 4.91 | 60,260 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,424 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,879 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,506 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,870 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,290 |
| Danube Countries | 0 | - | 4.96 | 57,245 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,255 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,313 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,748 |
| Countries with the Worst Passports | 0 | - | 4.88 | 50,436 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,074 |
| European Landlocked Countries | 0 | - | 4.99 | 137,240 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,843 |
| Countries with the Most Species | 0 | - | 4.99 | 89,867 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,375 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,033 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,327 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,086 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,900 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,144 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,951 |
| Countries in the Alps | 0 | - | 4.84 | 103,903 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,469 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,593 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,305 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,402 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,926 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,377 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,577 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,791 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,712 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,440 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,202 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,043 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,037 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,604 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,696 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,269 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,634 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,977 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,067 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,738 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,492 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,855 |
| Largest Countries By Category | 0 | - | 4.97 | 146,478 |
| Countries by Countries | 0 | - | 4.95 | 55,639 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,173,793 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,595 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,223 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 45,145 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,661 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,230,169 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 117,723 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 185,570 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 345,190 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,795 |
| Island Countries Quiz | 0 | - | 4.99 | 668,819 |
| Biggest Countries by Area | 0 | - | 5.00 | 947,793 |
| Northernmost Countries | 0 | - | 4.99 | 330,979 |
| Countries of South America | 0 | - | 5.00 | 810,257 |
| Countries of Oceania | 0 | - | 5.00 | 914,093 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,612,117 |
| Countries with J | 0 | - | 4.55 | 173,989 |
| Add A Letter - Make a Country | 0 | - | 4.79 | 68,928 |
| Countries by Consonants | 0 | - | 4.43 | 73,798 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,085 |
| Countries with Megacities | 0 | - | 4.99 | 201,912 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,431 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,988 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,284 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,912 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,140 |
| Countries by Official Language | 0 | - | 4.96 | 175,278 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,329 |
| Countries in their Native Language | 0 | - | 4.98 | 180,630 |
| Independence from Whom | 0 | - | 4.99 | 189,426 |
| Subdivisions by Country | 0 | - | 4.84 | 46,901 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,668 |
| Megadiverse Countries | 0 | - | 4.96 | 126,824 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,952 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,602 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,833 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,372 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,902 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,667 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,052 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,732 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,861 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,093 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,277 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,955 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,493 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,411 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,039 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,584 |
| World Map Quiz | 0 | - | 4.90 | 51,490 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,577 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,751 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,805 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,845 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 110,010 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,812 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,704 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,090 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,313 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 55,105 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,592 |
| Widest Countries East to West | 0 | - | 4.93 | 120,566 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,122 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,554 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,838 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,423 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,864 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,671 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,495 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,803 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,416 |
| City to Country Quiz #1 | 0 | - | 4.95 | 135,372 |
| City to Country Quiz #3 | 0 | - | 4.87 | 101,082 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,628 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 211,127 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 171,035 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,833 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 134,938 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 196,442 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 142,593 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,630 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 103,322 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 83,285 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,386 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,329,111 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,429 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,118,041 |
| One Border Countries | 0 | - | 4.98 | 415,834 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 94,220 |
| Most Similar Country Names | 0 | - | 4.14 | 44,117 |
| Longest Country Name A-Z | 0 | - | 4.36 | 37,772 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,470,600 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,458 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,409 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,595 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,276 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,287 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,354 |
| Countries by National Anthem | 0 | - | 4.95 | 68,654 |
| NATO Countries Quiz | 0 | - | 4.98 | 229,340 |
| EU Countries Quiz | 0 | - | 4.99 | 231,418 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 146,508 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,542 |
| Countries That Use the Euro | 0 | - | 4.93 | 66,279 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 229,318 |
