| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,310 |
| European Countries with One Border | 0 | - | 4.97 | 182,546 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,352 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,173 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,985 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 88,912 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,597 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,036 |
| Countries Bordering France | 0 | - | 4.83 | 401,989 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,688 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,349 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,685 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,342,231 |
| Countries Bordering India | 0 | - | 4.98 | 163,344 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,202 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,105 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,460 |
| Countries that Border China | 0 | - | 4.96 | 262,895 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,794 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,734 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,766 |
| Merged Countries #2 | 0 | - | 4.96 | 98,923 |
| Merged Countries #6 | 0 | - | 4.90 | 73,148 |
| Merged Countries #7 | 0 | - | 4.93 | 82,472 |
| Landlocked Countries | 0 | - | 4.99 | 419,073 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,420 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,217 |
| Countries with Glaciers | 0 | - | 4.97 | 105,257 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,434 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,573 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,757,484 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 355,641 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 414,698 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,191 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,038 |
| Himalayan Countries | 0 | - | 4.94 | 137,475 |
| Andean Countries | 0 | - | 4.95 | 83,964 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,241 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,694 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,852 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,366 |
| Danube Countries | 0 | - | 4.97 | 71,675 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,567 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,067 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,674 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,750 |
| European Landlocked Countries | 0 | - | 4.99 | 146,790 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,150 |
| Countries with the Most Species | 0 | - | 4.99 | 102,923 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,285 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,436 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,592 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,314 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,999 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,373 |
| Countries in the Alps | 0 | - | 4.87 | 117,706 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,147 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,386 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,428 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,003 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,111 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,670 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,296 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,198 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,974 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,560 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,488 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,343 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,938 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,196 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,217 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,211 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,071 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,579 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,536 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,441 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,254 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,009 |
| Largest Countries By Category | 0 | - | 4.97 | 157,659 |
| Countries by Countries | 0 | - | 4.96 | 62,848 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,334 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,836 |
| Random Countries by Borders | 0 | - | 4.99 | 82,295 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,095 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,636 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,165 |
| Island Countries | 0 | - | 4.99 | 709,810 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,939 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,162 |
| Northernmost Countries | 0 | - | 4.99 | 360,529 |
| Countries of South America | 0 | - | 5.00 | 923,054 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,215 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,691 |
| "Land" Countries | 0 | - | 4.98 | 335,821 |
| Countries That Border Russia | 0 | - | 4.98 | 461,195 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 106,872 |
| Countries Bordering the EU | 0 | - | 4.77 | 72,771 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,453 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,779 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,059 |
| Countries with Megacities | 0 | - | 4.99 | 260,603 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,923 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,016 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,199 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,023 |
| Countries by Official Language | 0 | - | 4.95 | 194,655 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,560 |
| Countries in their Native Language | 0 | - | 4.99 | 198,208 |
| Independence from Whom | 0 | - | 4.99 | 211,342 |
| Subdivisions by Country | 0 | - | 4.86 | 50,290 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,729 |
| Megadiverse Countries | 0 | - | 4.96 | 134,776 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,559 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,188 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,760 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,019 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,721 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,388 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,992 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,847 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,491 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,996 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,015 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,724 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,998 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,785 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,160 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,042 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,527 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,936 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,652 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,355 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,525 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,678 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,838 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,268 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,295 |
| Widest Countries East to West | 0 | - | 4.92 | 129,385 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,386 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,968 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,996 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,516 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,229 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,561 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,238 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,729 |
| Countries with Double Letters | 0 | - | 4.97 | 95,114 |
| Countries that End in N | 0 | - | 4.95 | 170,028 |
| Countries with Five Letters | 0 | - | 4.96 | 280,334 |
| Countries with Six Letters | 0 | - | 4.94 | 212,509 |
| Countries with W | 0 | - | 4.97 | 159,531 |
| Countries with Z | 0 | - | 4.98 | 289,831 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,762 |
| Countries That End in U | 0 | - | 4.95 | 120,420 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,769 |
| Countries that End in O | 0 | - | 4.92 | 159,203 |
| Countries that End in R | 0 | - | 4.87 | 118,738 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,517 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,352 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,122 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,093 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,676 |
| Countries That End in Y | 0 | - | 4.90 | 185,651 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,240 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,442 |
| Countries that End in I | 0 | - | 4.94 | 134,876 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,097 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,583 |
| Countries That End in NIA | 0 | - | 4.92 | 109,522 |
| Countries That End in BIA | 0 | - | 4.93 | 148,851 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,738 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,071 |
| Countries That End in RIA | 0 | - | 4.93 | 126,545 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,644 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,733 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,246 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,607 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,131 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,337 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,692 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,249 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,202 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,552 |
| Countries that End in L | 0 | - | 4.94 | 156,545 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,069 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,156 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,844 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,730 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,788 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,803 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,186 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,643 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,143 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,626 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,592 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,963 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,604 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,673 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,823,073 |
| One Border Countries | 0 | - | 4.98 | 467,749 |
