| Countries Containing Each Letter A-Z | 155,551 | 0 | - |
| Category Elimination - African Geography #1 | 93,508 | 0 | - |
| Countries with the Highest Population Density | 165,748 | 0 | - |
| Top 30 Most Powerful Militaries | 176,796 | 0 | - |
| Most Populous Modern-Day Countries in 1 AD | 93,248 | 0 | - |
| Top Five Importing Partners by Country | 102,843 | 0 | - |
| The Only Asian Country ... | 122,890 | 0 | - |
| Top 50 Countries by Population - In Order | 336,118 | 0 | - |
| Australian Immigration by Country | 77,519 | 0 | - |
| Groups of Countries that Start with the Same 3 Letters | 92,303 | 0 | - |
| MLB Cities Map Quiz | 69,983 | 0 | - |
| Click the Simpsons Characters | 65,771 | 0 | - |
| Five Biggest Immigrant Groups by Country #2 | 89,779 | 0 | - |
| Quick Division Mad Minute - Sudden Death | 123,777 | 0 | - |
| NATO Countries | 283,753 | 0 | - |
| Landlocked Countries | 426,730 | 0 | - |
| Click the Countries on a Borderless World Map #1 | 121,111 | 0 | - |
| American Bands - Sudden Death | 72,410 | 0 | - |
| Five Biggest Immigrant Groups by Country #3 | 66,681 | 0 | - |
| Countries with the Most Metal Bands | 85,751 | 0 | - |
| Countries with the Most Golf Courses | 56,844 | 0 | - |
| Spanish-Speaking Countries | 376,898 | 0 | - |
| Periodic Table Elements Mentioned in the Bible | 70,989 | 0 | - |
| Countries Closest to Afro-Eurasia | 26,004 | 0 | - |
| Countries with the Least Precipitation | 83,086 | 0 | - |
| Countries by Borders in 90 Seconds | 3,851,204 | 0 | - |
| Communist Countries in History | 498,521 | 0 | - |
| World Capitals - One Minute Sprint | 236,834 | 0 | - |
| Countries by Latitude Span | 19,117 | 0 | - |
| Countries with the Most Forest | 148,257 | 0 | - |
| Countries with the Most Immigrants | 150,772 | 0 | - |
| Top 20 Motor Vehicle Producing Countries | 123,637 | 0 | - |
| Country Population - East or West? | 54,300 | 0 | - |
| Countries Gaining the Most Population by 2070 | 64,528 | 0 | - |
| Countries with the Most Desert | 128,555 | 0 | - |
| Most Populous Countries by Year | 111,526 | 0 | - |
| Category Elimination - African Geography #2 | 57,204 | 0 | - |
| Category Elimination - Capital Cities #1 | 134,362 | 0 | - |
| Category Elimination - Countries #2 | 238,407 | 0 | - |
| Five Most Densely Populated Countries by Continent | 87,415 | 0 | - |
| Countries with a Population Under 1 Million by Clue | 93,229 | 0 | - |
| Landlocked Countries - Sudden Death | 170,103 | 0 | - |
| Countries with the Most Military Troops | 291,672 | 0 | - |
| All Countries by Population With a Map | 111,236 | 0 | - |
| Countries by Wealth per Capita | 79,623 | 0 | - |
| Most Visited Countries by JetPunkers | 119,171 | 0 | - |
| Countries with the Most People Bordering Them | 108,770 | 0 | - |
| Countries Ending in "IA" | 210,006 | 0 | - |
| Countries That Do Not Border | 60,931 | 0 | - |
| Asian Countries - Type the First Letter | 113,981 | 0 | - |
| Divided Country Name Puzzle #2 | 134,291 | 0 | - |
| All-Time Best Selling Musical Acts in the U.S. | 70,021 | 0 | - |
| Five Biggest Countries by Letter A-Z | 3,077 | - | - |
| Countries of the World by Similar Area in 90 Seconds | 46,768 | 0 | - |
| Majority Muslim Countries | 378,089 | 0 | - |
| Countries with the Tallest Buildings | 104,947 | 0 | - |
| Country to Population Click Quiz | 44,696 | 0 | - |
| All 2M Cities by Proximity | 53,112 | 0 | - |
| European Diaspora - Top 11 Countries | 96,920 | 0 | - |
| Body Parts - Sudden Death #1 | 67,066 | 0 | - |
| Anagram Chain - Countries | 117,821 | 0 | - |
| The Answer is a Number - Whammies | 111,000 | 0 | - |
| Countries with the Most Total Precipitation | 66,016 | 0 | - |
| Top Five Countries By Category #1 | 453,869 | 0 | - |
| Countries with the Highest Population Under Age 15 | 111,498 | 0 | - |
| Asian Countries by Borders in 30 Seconds | 418,048 | 0 | - |
| Name a Valid Answer - United States #1 | 94,440 | 0 | - |
| Tropical Rainforest Countries | 82,379 | 0 | - |
| Countries that are the Source of Refugees | 75,910 | 0 | - |
| 50 Largest Countries on the World Map Quiz | 146,541 | 0 | - |
| Eastern Europe Map Quiz | 128,835 | 0 | - |
| Countries with the Most Elite Universities | 149,901 | 0 | - |
| Five Biggest Countries by Letter #2 | 2,911 | - | - |
| 15 Most Populous Countries that Speak a Romance Language | 128,446 | 0 | - |
| NBA All-Star Game Starters 2010s | 16,207 | 0 | - |
| Smallest Countries by Population and Area | 382,768 | 0 | - |
| Best NBA Point Guards of All-Time | 104,017 | 0 | - |
| Smallest Countries with at Least One Border | 107,768 | 0 | - |
| 10 Random Numbers 1-100 - Blind Ranking | 409,583 | 0 | - |
| Most "Underpopulated" Countries | 76,382 | 0 | - |
| Countries with Megacities | 267,537 | 0 | - |
| Boston Talk to English Translation Quiz | 56,278 | 0 | - |
| Europe Cities Map Quiz | 366,419 | 0 | - |
| Danube Countries | 72,494 | 0 | - |
| Countries With The Most Bird Species | 33,265 | 0 | - |
| Biggest British Empire Countries | 100,549 | 0 | - |
| Countries with More Cows than People | 61,704 | 0 | - |
| NBA 70 Points in a Game | 13,622 | 0 | - |
| Netherlands Immigration by Country | 52,853 | 0 | - |
