| Countries Containing Each Letter A-Z | 155,568 | 0 | - |
| Category Elimination - African Geography #1 | 93,514 | 0 | - |
| Countries with the Highest Population Density | 165,753 | 0 | - |
| Top 30 Most Powerful Militaries | 176,800 | 0 | - |
| Most Populous Modern-Day Countries in 1 AD | 93,250 | 0 | - |
| Top Five Importing Partners by Country | 102,852 | 0 | - |
| The Only Asian Country ... | 122,898 | 0 | - |
| Top 50 Countries by Population - In Order | 336,157 | 0 | - |
| Australian Immigration by Country | 77,520 | 0 | - |
| Groups of Countries that Start with the Same 3 Letters | 92,312 | 0 | - |
| MLB Cities Map Quiz | 69,985 | 0 | - |
| Click the Simpsons Characters | 65,784 | 0 | - |
| Five Biggest Immigrant Groups by Country #2 | 89,780 | 0 | - |
| Quick Division Mad Minute - Sudden Death | 123,806 | 0 | - |
| NATO Countries | 283,769 | 0 | - |
| Landlocked Countries | 426,772 | 0 | - |
| Click the Countries on a Borderless World Map #1 | 121,167 | 0 | - |
| American Bands - Sudden Death | 72,416 | 0 | - |
| Five Biggest Immigrant Groups by Country #3 | 66,683 | 0 | - |
| Countries with the Most Metal Bands | 85,770 | 0 | - |
| Countries with the Most Golf Courses | 56,848 | 0 | - |
| Spanish-Speaking Countries | 376,912 | 0 | - |
| Periodic Table Elements Mentioned in the Bible | 70,991 | 0 | - |
| Countries Closest to Afro-Eurasia | 26,005 | 0 | - |
| Countries with the Least Precipitation | 83,087 | 0 | - |
| Countries by Borders in 90 Seconds | 3,851,331 | 0 | - |
| Communist Countries in History | 498,531 | 0 | - |
| World Capitals - One Minute Sprint | 236,842 | 0 | - |
| Countries by Latitude Span | 19,117 | 0 | - |
| Countries with the Most Forest | 148,257 | 0 | - |
| Countries with the Most Immigrants | 150,780 | 0 | - |
| Top 20 Motor Vehicle Producing Countries | 123,640 | 0 | - |
| Country Population - East or West? | 54,307 | 0 | - |
| Countries Gaining the Most Population by 2070 | 64,529 | 0 | - |
| Countries with the Most Desert | 128,560 | 0 | - |
| Most Populous Countries by Year | 111,529 | 0 | - |
| Category Elimination - African Geography #2 | 57,208 | 0 | - |
| Category Elimination - Capital Cities #1 | 134,370 | 0 | - |
| Category Elimination - Countries #2 | 238,429 | 0 | - |
| Five Most Densely Populated Countries by Continent | 87,421 | 0 | - |
| Countries with a Population Under 1 Million by Clue | 93,230 | 0 | - |
| Landlocked Countries - Sudden Death | 170,142 | 0 | - |
| Countries with the Most Military Troops | 291,687 | 0 | - |
| All Countries by Population With a Map | 111,251 | 0 | - |
| Countries by Wealth per Capita | 79,624 | 0 | - |
| Most Visited Countries by JetPunkers | 119,177 | 0 | - |
| Countries with the Most People Bordering Them | 108,775 | 0 | - |
| Countries Ending in "IA" | 210,023 | 0 | - |
| Countries That Do Not Border | 60,934 | 0 | - |
| Asian Countries - Type the First Letter | 114,004 | 0 | - |
| Divided Country Name Puzzle #2 | 134,303 | 0 | - |
| All-Time Best Selling Musical Acts in the U.S. | 70,024 | 0 | - |
| Five Biggest Countries by Letter A-Z | 3,077 | - | - |
| Countries of the World by Similar Area in 90 Seconds | 46,773 | 0 | - |
| Majority Muslim Countries | 378,108 | 0 | - |
| Countries with the Tallest Buildings | 104,949 | 0 | - |
| Country to Population Click Quiz | 44,701 | 0 | - |
| All 2M Cities by Proximity | 53,116 | 0 | - |
| European Diaspora - Top 11 Countries | 96,926 | 0 | - |
| Body Parts - Sudden Death #1 | 67,070 | 0 | - |
| Anagram Chain - Countries | 117,828 | 0 | - |
| The Answer is a Number - Whammies | 111,016 | 0 | - |
| Countries with the Most Total Precipitation | 66,018 | 0 | - |
| Top Five Countries By Category #1 | 453,884 | 0 | - |
| Countries with the Highest Population Under Age 15 | 111,499 | 0 | - |
| Asian Countries by Borders in 30 Seconds | 418,052 | 0 | - |
| Name a Valid Answer - United States #1 | 94,441 | 0 | - |
| Tropical Rainforest Countries | 82,381 | 0 | - |
| Countries that are the Source of Refugees | 75,922 | 0 | - |
| 50 Largest Countries on the World Map Quiz | 146,545 | 0 | - |
| Eastern Europe Map Quiz | 128,847 | 0 | - |
| Countries with the Most Elite Universities | 149,912 | 0 | - |
| Five Biggest Countries by Letter #2 | 2,911 | - | - |
| 15 Most Populous Countries that Speak a Romance Language | 128,447 | 0 | - |
| NBA All-Star Game Starters 2010s | 16,212 | 0 | - |
| Smallest Countries by Population and Area | 382,779 | 0 | - |
| Best NBA Point Guards of All-Time | 104,019 | 0 | - |
| Smallest Countries with at Least One Border | 107,769 | 0 | - |
| 10 Random Numbers 1-100 - Blind Ranking | 409,693 | 0 | - |
| Most "Underpopulated" Countries | 76,387 | 0 | - |
| Countries with Megacities | 267,557 | 0 | - |
| Boston Talk to English Translation Quiz | 56,279 | 0 | - |
| Europe Cities Map Quiz | 366,430 | 0 | - |
| Danube Countries | 72,497 | 0 | - |
| Countries With The Most Bird Species | 33,267 | 0 | - |
| Biggest British Empire Countries | 100,553 | 0 | - |
| Countries with More Cows than People | 61,708 | 0 | - |
| NBA 70 Points in a Game | 13,630 | 0 | - |
| Netherlands Immigration by Country | 52,857 | 0 | - |
