| Countries Containing Each Letter A-Z | 150,525 | 0 | - |
| Category Elimination - African Geography #1 | 91,388 | 0 | - |
| Countries with the Highest Population Density | 164,376 | 0 | - |
| Top 30 Most Powerful Militaries | 175,403 | 0 | - |
| Most Populous Modern-Day Countries in 1 AD | 83,817 | 0 | - |
| Top Five Importing Partners by Country | 94,769 | 0 | - |
| The Only Asian Country ... | 122,056 | 0 | - |
| Top 50 Countries by Population - In Order | 325,937 | 0 | - |
| Australian Immigration by Country | 77,093 | 0 | - |
| Groups of Countries that Start with the Same 3 Letters | 90,613 | 0 | - |
| MLB Cities Map Quiz | 69,064 | 0 | - |
| Click the Simpsons Characters | 62,941 | 0 | - |
| Five Biggest Immigrant Groups by Country #2 | 88,605 | 0 | - |
| Quick Division Mad Minute - Sudden Death | 119,373 | 0 | - |
| NATO Countries | 277,361 | 0 | - |
| Landlocked Countries | 415,506 | 0 | - |
| Click the Countries on a Borderless World Map #1 | 110,487 | 0 | - |
| American Bands - Sudden Death | 69,944 | 0 | - |
| Five Biggest Immigrant Groups by Country #3 | 65,990 | 0 | - |
| Countries with the Most Metal Bands | 67,270 | 0 | - |
| Countries with the Most Golf Courses | 55,982 | 0 | - |
| Spanish-Speaking Countries | 372,856 | 0 | - |
| Periodic Table Elements Mentioned in the Bible | 70,416 | 0 | - |
| Countries Closest to Afro-Eurasia | 25,405 | 0 | - |
| Countries with the Least Precipitation | 82,454 | 0 | - |
| Countries by Borders in 90 Seconds | 3,808,787 | 0 | - |
| Communist Countries in History | 493,416 | 0 | - |
| World Capitals - One Minute Sprint | 233,858 | 0 | - |
| Countries by Latitude Span | 18,732 | 0 | - |
| Countries with the Most Forest | 146,793 | 0 | - |
| Countries with the Most Immigrants | 147,837 | 0 | - |
| Top 20 Motor Vehicle Producing Countries | 122,264 | 0 | - |
| Country Population - East or West? | 52,900 | 0 | - |
| Countries Gaining the Most Population by 2070 | 63,957 | 0 | - |
| Countries with the Most Desert | 127,243 | 0 | - |
| Most Populous Countries by Year | 109,607 | 0 | - |
| Category Elimination - African Geography #2 | 56,047 | 0 | - |
| Category Elimination - Capital Cities #1 | 131,884 | 0 | - |
| Category Elimination - Countries #2 | 234,230 | 0 | - |
| Five Most Densely Populated Countries by Continent | 86,171 | 0 | - |
| Countries with a Population Under 1 Million by Clue | 92,521 | 0 | - |
| Landlocked Countries - Sudden Death | 159,894 | 0 | - |
| Countries with the Most Military Troops | 285,832 | 0 | - |
| All Countries by Population With a Map | 107,333 | 0 | - |
| Countries by Wealth per Capita | 78,866 | 0 | - |
| Most Visited Countries by JetPunkers | 117,740 | 0 | - |
| Countries with the Most People Bordering Them | 107,227 | 0 | - |
| Countries Ending in "IA" | 207,449 | 0 | - |
| Countries That Do Not Border | 59,626 | 0 | - |
| Asian Countries - Type the First Letter | 111,053 | 0 | - |
| Divided Country Name Puzzle #2 | 132,703 | 0 | - |
| All-Time Best Selling Musical Acts in the U.S. | 69,247 | 0 | - |
| Five Biggest Countries by Letter A-Z | 3,032 | - | - |
| Countries of the World by Similar Area in 90 Seconds | 45,052 | 0 | - |
| Majority Muslim Countries | 370,995 | 0 | - |
| Countries with the Tallest Buildings | 103,965 | 0 | - |
| Country to Population Click Quiz | 43,203 | 0 | - |
| All 2M Cities by Proximity | 51,704 | 0 | - |
| European Diaspora - Top 11 Countries | 95,230 | 0 | - |
| Body Parts - Sudden Death #1 | 61,859 | 0 | - |
| Anagram Chain - Countries | 115,587 | 0 | - |
| The Answer is a Number - Whammies | 104,782 | 0 | - |
| Countries with the Most Total Precipitation | 65,618 | 0 | - |
| Top Five Countries By Category #1 | 447,517 | 0 | - |
| Countries with the Highest Population Under Age 15 | 110,129 | 0 | - |
| Asian Countries by Borders in 30 Seconds | 413,502 | 0 | - |
| Name a Valid Answer - United States #1 | 93,601 | 0 | - |
| Tropical Rainforest Countries | 81,822 | 0 | - |
| Countries that are the Source of Refugees | 60,656 | 0 | - |
| 50 Largest Countries on the World Map Quiz | 144,903 | 0 | - |
| Eastern Europe Map Quiz | 127,392 | 0 | - |
| Countries with the Most Elite Universities | 147,165 | 0 | - |
| Five Biggest Countries by Letter #2 | 2,837 | - | - |
| 15 Most Populous Countries that Speak a Romance Language | 127,420 | 0 | - |
| NBA All-Star Game Starters 2010s | 15,496 | 0 | - |
| Smallest Countries by Population and Area | 378,431 | 0 | - |
| Best NBA Point Guards of All-Time | 102,360 | 0 | - |
| Smallest Countries with at Least One Border | 106,603 | 0 | - |
| 10 Random Numbers 1-100 - Blind Ranking | 348,872 | 0 | - |
| Most "Underpopulated" Countries | 74,853 | 0 | - |
| Countries with Megacities | 248,282 | 0 | - |
| Boston Talk to English Translation Quiz | 55,786 | 0 | - |
| Europe Cities Map Quiz | 362,901 | 0 | - |
| Danube Countries | 71,277 | 0 | - |
| Countries With The Most Bird Species | 32,590 | 0 | - |
| Biggest British Empire Countries | 99,222 | 0 | - |
| Countries with More Cows than People | 60,649 | 0 | - |
