| Independence from Whom | 0 | - | 4.99 | 211,768 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,024 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,496 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,253 |
| The Only African Country ... | 0 | - | 4.99 | 129,126 |
| The Only American Country ... | 0 | - | 4.92 | 121,642 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,139 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,158 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,080 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,380 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,980 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,478,989 |
| Recently Independent Countries | 0 | - | 4.98 | 159,275 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,967 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,322 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,916 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,928 |
| Countries by Former Name | 0 | - | 4.99 | 125,153 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,359 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,971 |
| Historical City to Country | 0 | - | 4.84 | 78,550 |
| Landlocked Countries | 0 | - | 4.99 | 420,774 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,661 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,317 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,207 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,771 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,265 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,556 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,275 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,639 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,515 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,795 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,199 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,846 |
| Himalayan Countries | 0 | - | 4.95 | 138,185 |
| Andean Countries | 0 | - | 4.95 | 84,312 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,537 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,418 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,167 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,597 |
| Danube Countries | 0 | - | 4.97 | 71,858 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,832 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,263 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,022 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,483 |
| European Landlocked Countries | 0 | - | 4.99 | 146,999 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,407 |
| Countries with the Most Species | 0 | - | 4.99 | 103,116 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,567 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,520 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,457 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,131 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,525 |
| Countries in the Alps | 0 | - | 4.87 | 117,992 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,855 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,774 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,557 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,470 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,341 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,845 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,493 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,363 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,092 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,718 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,573 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,428 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,088 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,364 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,387 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,596 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,188 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,711 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,850 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,310 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,736 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,127 |
| Largest Countries By Category | 0 | - | 4.97 | 157,971 |
| Countries by Countries | 0 | - | 4.96 | 63,046 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,492 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,227 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,535 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,491 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,119 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,407 |
| Island Countries | 0 | - | 4.99 | 710,524 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,202 |
| Northernmost Countries | 0 | - | 4.99 | 361,354 |
| Countries of South America | 0 | - | 5.00 | 925,389 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,416 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,644 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,499 |
| "Land" Countries | 0 | - | 4.98 | 336,796 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,770 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,384 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,910 |
| Battle to Country | 0 | - | 4.91 | 53,367 |
| Countries by Independence Day | 0 | - | 4.61 | 52,744 |
| Former Countries by Capital | 0 | - | 4.45 | 127,493 |
| Former Countries | 0 | - | 4.75 | 133,817 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,549 |
| Countries with Megacities | 0 | - | 4.99 | 263,616 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,382 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,291 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,664 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,331 |
| Countries by Official Language | 0 | - | 4.95 | 194,988 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,013 |
| Countries in their Native Language | 0 | - | 4.99 | 198,495 |
| Subdivisions by Country | 0 | - | 4.86 | 50,375 |
| Megadiverse Countries | 0 | - | 4.96 | 134,903 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,832 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,275 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,857 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,065 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,947 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,036 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,952 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,576 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,046 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,394 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,801 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,113 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,886 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,260 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,426 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,772 |
| World Map Quiz | 0 | - | 4.81 | 64,902 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,215 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,830 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,120 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,849 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,843 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,754 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,888 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,191 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,366 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,462 |
| Widest Countries East to West | 0 | - | 4.92 | 129,529 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,420 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,209 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,073 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,652 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,436 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,724 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,321 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,770 |
| Countries with Double Letters | 0 | - | 4.97 | 95,735 |
| Countries that End in N | 0 | - | 4.95 | 170,705 |
| Countries with Five Letters | 0 | - | 4.96 | 281,751 |
| Countries with Six Letters | 0 | - | 4.94 | 213,114 |
| Countries with W | 0 | - | 4.97 | 159,998 |
| Countries with Z | 0 | - | 4.98 | 290,961 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,348 |
| Countries That End in U | 0 | - | 4.95 | 120,651 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,152 |
| Countries that End in O | 0 | - | 4.92 | 159,377 |
| Countries that End in R | 0 | - | 4.87 | 118,859 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,627 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,749 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,416 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,285 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,894 |
| Countries That End in Y | 0 | - | 4.91 | 185,779 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,602 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,667 |
| Countries that End in I | 0 | - | 4.94 | 134,991 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,792 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,711 |
| Countries That End in NIA | 0 | - | 4.92 | 109,654 |
| Countries That End in BIA | 0 | - | 4.93 | 149,033 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,921 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,260 |
| Countries That End in RIA | 0 | - | 4.93 | 126,690 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,835 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,217 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,476 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,865 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,426 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,465 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,864 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,389 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,355 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,320 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,790 |
| Countries that End in L | 0 | - | 4.94 | 156,703 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,974 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,218 |
| The Only Asian Country ... | 0 | - | 4.69 | 122,418 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,929 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,852 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,897 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,483 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,444 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,836 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,374 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,876 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,741 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,029 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,651 |
