| Olympic Host Countries | 0 | - | 4.98 | 199,383 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 305,476 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 45,525 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,118 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,353 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,099 |
| Countries with Megacities | 0 | - | 4.99 | 248,594 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,974 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,453 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,346 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,406 |
| Countries with the Most Downhill Skiing | 0 | - | 4.91 | 56,939 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,958 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,599 |
| Countries with Most Grand Slam Tennis Titles | 0 | - | 4.42 | 57,641 |
| Countries with Major League Baseball Players | 0 | - | 4.61 | 67,506 |
| Countries with the Fastest Marathoners | 0 | - | 4.51 | 94,851 |
| Countries with the Most Golf Courses | 0 | - | 4.55 | 56,027 |
| Countries Where Baseball is the Most Popular Sport | 0 | - | 4.42 | 55,132 |
| Countries that Export the Most Football Players | 0 | - | 4.43 | 57,289 |
| Countries with the Fastest 100 Meter Sprinters | 0 | - | 4.44 | 85,642 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,223 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,748 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,242 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,030 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,031 |
| North American Sports Cities | 0 | - | 4.83 | 171,291 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,014 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,733 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,170 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,165 |
| The Only European Country ... | 0 | - | 4.91 | 214,874 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,885 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,158 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,422 |
| Countries of Africa | 0 | - | 5.00 | 2,518,103 |
| Countries With The Most NHL Hockey Players | 0 | - | 4.48 | 99,264 |
| Countries With the Most NBA Players | 0 | - | 4.47 | 116,882 |
| Top 10 Countries with the Most Registered Soccer Players | 0 | - | 4.14 | 71,200 |
| Countries with the Most Summer Olympics Medals | 0 | - | 4.55 | 92,894 |
| Boundary Waters | 0 | - | 4.92 | 88,177 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,926 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,568 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,021 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,694 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,301 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,762 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,280 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,883 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,609 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,486 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,851 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,734 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,980 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,756 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,169 |
| Countries of the Middle East | 0 | - | 4.96 | 199,681 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,636 |
| Slavic Countries | 0 | - | 4.96 | 111,162 |
| African Island Countries | 0 | - | 4.96 | 101,080 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,637 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,446 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,489 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,190 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,888 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,626 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,092 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,049 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,139 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,352 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,455 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,630 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,831 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,602 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,674 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,532 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,768 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,709 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,016,164 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,679 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,984 |
| All-Time Winter Olympics Medal Table | 0 | - | 4.46 | 177,898 |
| Athletes by Country Quiz #1 | 0 | - | 4.36 | 45,314 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,596 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,495 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,363 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,281 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,980 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,719 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,850 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,692 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,109,917 |
| Landlocked Countries | 0 | - | 4.99 | 415,962 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,460 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,706 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,667 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,685 |
| Monarchies of Europe | 0 | - | 4.90 | 97,624 |
| Monarchies of Asia | 0 | - | 4.97 | 70,782 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,581 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 134,482 |
| Countries that Start with A | 0 | - | 4.98 | 2,152,380 |
| Countries that Start with B | 0 | - | 4.95 | 2,284,768 |
| Countries that Start with C | 0 | - | 4.96 | 1,814,245 |
| Countries that Start with D | 0 | - | 4.96 | 704,239 |
| Countries that Start with E | 0 | - | 4.95 | 1,370,735 |
| Countries that Start with G | 0 | - | 4.97 | 1,496,259 |
| Countries that Start with H | 0 | - | 4.96 | 600,199 |
| Countries that Start with I | 0 | - | 4.92 | 1,282,924 |
| Countries that Start with J | 0 | - | 4.98 | 598,220 |
| Countries that Start with K | 0 | - | 4.97 | 811,456 |
| Countries that Start with L | 0 | - | 4.98 | 1,085,441 |
| Countries that Start with N | 0 | - | 4.93 | 1,112,373 |
| Countries that Start with P | 0 | - | 4.94 | 1,211,033 |
| Countries that Start with S | 0 | - | 4.98 | 1,747,998 |
| Countries that Start with T | 0 | - | 4.90 | 1,006,099 |
| Countries that Start with U | 0 | - | 4.97 | 901,464 |
| Countries that Start with V | 0 | - | 4.98 | 606,447 |
| Countries that Start with F | 0 | - | 4.83 | 614,022 |
| Countries that Start with M | 0 | - | 4.97 | 1,376,121 |
| The Only African Country ... | 0 | - | 4.98 | 128,647 |
| The Only American Country ... | 0 | - | 4.92 | 121,101 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,891 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,414 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,283 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,813 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,420 |
| European Countries with One Border | 0 | - | 4.97 | 182,021 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,894 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,654 |
| Boxing Countries | 0 | - | 4.26 | 31,266 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,315 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,286 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,190 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,123 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,448 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,127 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 119,604 |
| World Capitals Quiz | 0 | - | 5.00 | 5,046,413 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,577 |
| Himalayan Countries | 0 | - | 4.95 | 136,206 |
| Andean Countries | 0 | - | 4.95 | 83,295 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,589 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,798 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,287 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,910 |
| Danube Countries | 0 | - | 4.97 | 71,328 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,099 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,782 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,999 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,960 |
| European Landlocked Countries | 0 | - | 4.99 | 146,036 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,649 |
| Countries with the Most Species | 0 | - | 4.99 | 96,220 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,786 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,293 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,470 |
| UK Immigration by Country | 0 | - | 4.94 | 140,024 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,108 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,754 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,128 |
| Countries in the Alps | 0 | - | 4.86 | 117,241 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,828 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,736 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,204 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,655 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,491 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,199 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,893 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,946 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,741 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,274 |
| Central American Countries | 0 | - | 4.98 | 155,432 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,317 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,176 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,951 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,669 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,346 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,127 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,931 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,941 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,590 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,843 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,378 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,615 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,099 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,119 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,630 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,401 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,777 |
| Largest Countries By Category | 0 | - | 4.97 | 157,161 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,999 |
| Countries by Countries | 0 | - | 4.96 | 62,520 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,925 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,691 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 118,597 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,376 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,033 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,937 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,695 |
