| Independence from Whom | 0 | - | 4.99 | 184,234 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 112,600 |
| Countries in World War I | 0 | - | 4.89 | 208,633 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 206,898 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,863 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,155 |
| Battle to Country | 0 | - | 4.92 | 34,991 |
| NATO Countries Quiz | 0 | - | 4.98 | 224,191 |
| EU Countries Quiz | 0 | - | 4.99 | 226,610 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,914 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,807 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 216,460 |
| Top Five Countries by Religion | 0 | - | 4.91 | 140,647 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 122,511 |
| Countries with NO Military | 0 | - | 4.96 | 48,898 |
| Countries of the World in 1900 | 0 | - | 4.88 | 65,379 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 169,273 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 126,752 |
| Countries by Number of Books Published | 0 | - | 4.95 | 63,208 |
| Countries by Former Name | 0 | - | 4.99 | 112,686 |
| Historical City to Country | 0 | - | 4.83 | 72,013 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,590,595 |
| Communist Countries in History | 0 | - | 4.65 | 452,588 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 319,260 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,050 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.85 | 68,310 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 75,791 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,418 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,655 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,457 |
| Former Capitals Quiz | 0 | - | 4.81 | 57,872 |
| Majority Muslim Countries | 0 | - | 4.97 | 312,057 |
| Countries in World War II | 0 | - | 4.70 | 804,522 |
| Countries Settled by Vikings | 0 | - | 4.93 | 110,963 |
| Countries with the Most Christians | 0 | - | 4.93 | 106,519 |
| Countries with the Most Tanks | 0 | - | 4.90 | 74,836 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 40,686 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 65,832 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,033,224 |
| Warsaw Pact Countries | 0 | - | 4.85 | 79,927 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 71,834 |
| Buddhist Countries | 0 | - | 4.96 | 130,306 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 86,324 |
| Countries with the Most Millionaires | 0 | - | 4.84 | 82,510 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,369 |
| Countries on the Equator | 0 | - | 4.83 | 133,510 |
| Members of the Arab League | 0 | - | 4.83 | 59,965 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,614 |
| Himalayan Countries | 0 | - | 4.95 | 103,030 |
| Andean Countries | 0 | - | 4.90 | 57,262 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 58,097 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,699 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,063 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,667 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,873 |
| Danube Countries | 0 | - | 4.97 | 56,424 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,460 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,658 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,578 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,932 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,589 |
| European Landlocked Countries | 0 | - | 4.99 | 114,914 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,918 |
| Countries with the Most Species | 0 | - | 4.99 | 89,124 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,977 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,513 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,866 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,881 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,193 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,518 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,805 |
| Countries in the Alps | 0 | - | 4.83 | 102,043 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,829 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,134 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,235 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,865 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,533 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,190 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,208 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,859 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,126 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,294 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,032 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,397 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,484 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,107 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,612 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,109 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,961 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,052 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,066 |
| Countries with the Most Catholics | 0 | - | 4.91 | 92,299 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 193,814 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,821 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,045 |
| Largest Countries By Category | 0 | - | 4.96 | 144,141 |
| Orthodox Countries | 0 | - | 4.91 | 116,497 |
| Countries by Countries | 0 | - | 4.96 | 54,233 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 68,371 |
| Monarchies of Europe | 0 | - | 4.88 | 86,490 |
| Monarchies of Asia | 0 | - | 4.95 | 53,720 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 281,861 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 205,822 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 196,981 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 167,763 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.95 | 105,083 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,575 |
| Countries with the Most Billionaires | 0 | - | 4.94 | 279,319 |
| Countries with the Most Muslims | 0 | - | 4.92 | 130,923 |
| Countries with the Most Exports | 0 | - | 4.96 | 122,341 |
| Top Crude Oil Producing Countries | 0 | - | 4.87 | 155,782 |
| Countries by Oil Consumption | 0 | - | 4.96 | 110,667 |
| Largest Economies in 2050 | 0 | - | 4.90 | 98,550 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 237,634 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 81,882 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.84 | 64,044 |
| Countries that Start with A | 0 | - | 4.98 | 1,931,662 |
| Countries that Start with B | 0 | - | 4.95 | 2,070,321 |
| Countries that Start with C | 0 | - | 4.96 | 1,636,985 |
| Countries that Start with D | 0 | - | 4.96 | 586,826 |
| Countries that Start with E | 0 | - | 4.95 | 1,224,183 |
| Countries that Start with G | 0 | - | 4.97 | 1,343,642 |
| Countries that Start with H | 0 | - | 4.95 | 500,395 |
| Countries that Start with I | 0 | - | 4.92 | 1,154,872 |
| Countries that Start with J | 0 | - | 4.98 | 503,894 |
| Countries that Start with K | 0 | - | 4.97 | 706,836 |
| Countries that Start with L | 0 | - | 4.98 | 965,251 |
| Countries that Start with N | 0 | - | 4.93 | 991,844 |
| Countries that Start with P | 0 | - | 4.94 | 1,094,394 |
| Countries that Start with S | 0 | - | 4.98 | 1,596,270 |
| Countries that Start with T | 0 | - | 4.88 | 904,346 |
| Countries that Start with U | 0 | - | 4.96 | 816,571 |
| Countries that Start with V | 0 | - | 4.98 | 547,080 |
| Countries that Start with F | 0 | - | 4.83 | 532,979 |
| Countries that Start with M | 0 | - | 4.97 | 1,247,354 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 97,402 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 161,268 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 75,943 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 339,167 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 352,744 |
| Island Countries Quiz | 0 | - | 4.99 | 639,884 |
| Biggest Countries by Area | 0 | - | 5.00 | 927,015 |
| Northernmost Countries | 0 | - | 4.99 | 325,793 |
| Countries of South America | 0 | - | 5.00 | 786,078 |
| Countries of Oceania | 0 | - | 5.00 | 885,148 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,120,636 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,557,419 |
| Most Populous Countries in 1950 | 0 | - | 4.55 | 70,706 |
| Countries by Independence Day Quiz | 0 | - | 4.64 | 44,372 |
| Former Countries by Capital | 0 | - | 4.45 | 103,476 |
| Former Countries | 0 | - | 4.72 | 124,118 |
| Guerrillas by Country | 0 | - | 4.45 | 38,335 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 92,481 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,716 |
| Richest Countries A-Z | 0 | - | 4.91 | 87,059 |
| Large Countries with Small Economies | 0 | - | 4.94 | 59,963 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 180,197 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 114,992 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,209 |
| Richest Countries Bordering Each Other | 0 | - | 4.98 | 125,583 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 86,442 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.96 | 61,983 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,304,811 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 348,014 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,560 |
| Countries with Megacities | 0 | - | 4.99 | 195,334 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,987 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 97,111 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 94,060 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,970 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,835 |
| Countries by Official Language | 0 | - | 4.95 | 153,800 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 247,369 |
| Countries in their Native Language | 0 | - | 4.98 | 177,293 |
| Subdivisions by Country | 0 | - | 4.82 | 46,260 |
| Megadiverse Countries | 0 | - | 4.96 | 124,912 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,298 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,137 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,185 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,312 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,441 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,625 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,168 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 43,226 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,939 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,637 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,551 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,172 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,877 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,043,103 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,741 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,955 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,696 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,321 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,307 |
| Countries With the Most Languages | 0 | - | 4.90 | 172,100 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 86,718 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 71,058 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,699 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,455 |
