| NATO Countries | 0 | - | 4.98 | 275,320 |
| EU Countries Quiz | 0 | - | 4.99 | 269,601 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,516 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,795 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,873,184 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,151 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,641 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,875 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,882 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,635 |
| Countries with NO Military | 0 | - | 4.97 | 61,105 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,864 |
| Landlocked Countries | 0 | - | 4.99 | 413,104 |
| OPEC Countries | 0 | - | 4.74 | 84,792 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,314 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,180 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,667 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,064 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,842 |
| Buddhist Countries | 0 | - | 4.96 | 142,868 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,611 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,935 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,711,781 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,703 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,732 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,206 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,358 |
| Himalayan Countries | 0 | - | 4.95 | 135,141 |
| Andean Countries | 0 | - | 4.94 | 82,719 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,140 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,057 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,807 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,508 |
| Danube Countries | 0 | - | 4.97 | 71,024 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,684 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,479 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,343 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,265 |
| European Landlocked Countries | 0 | - | 4.99 | 145,693 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,098 |
| Countries with the Most Species | 0 | - | 4.99 | 95,209 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,250 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,184 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,344 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,924 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,537 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,893 |
| Countries in the Alps | 0 | - | 4.87 | 116,734 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,501 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,136 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,964 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,357 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,091 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,951 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,503 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,708 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,773 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,001 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,178 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,009 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,395 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,699 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,697 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,941 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,586 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,215 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,715 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,968 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,453 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,560 |
| Largest Countries By Category | 0 | - | 4.97 | 156,665 |
| Countries by Countries | 0 | - | 4.96 | 62,196 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,695 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,283 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,923 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,207 |
| Island Countries | 0 | - | 4.99 | 707,367 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,718 |
| Northernmost Countries | 0 | - | 4.99 | 357,401 |
| Countries of South America | 0 | - | 5.00 | 913,817 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,183 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,200 |
| "Land" Countries | 0 | - | 4.98 | 333,488 |
| Countries that Start with A | 0 | - | 4.97 | 2,145,360 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,582 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,261 |
| Countries that Start with D | 0 | - | 4.96 | 700,821 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,679 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,903 |
| Countries that Start with H | 0 | - | 4.96 | 597,347 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,558 |
| Countries that Start with J | 0 | - | 4.98 | 595,409 |
| Countries that Start with K | 0 | - | 4.96 | 808,865 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,246 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,103 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,934 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,630 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,690 |
| Countries that Start with U | 0 | - | 4.97 | 899,544 |
| Countries that Start with V | 0 | - | 4.98 | 604,726 |
| Countries that Start with F | 0 | - | 4.83 | 611,700 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,606 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,916 |
| Orthodox Countries | 0 | - | 4.91 | 130,292 |
| Richest Island Countries | 0 | - | 4.84 | 99,432 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,736 |
| Monarchies of Europe | 0 | - | 4.90 | 97,241 |
| Monarchies of Asia | 0 | - | 4.97 | 70,556 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,317 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,398 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,195 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,062 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,393 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,488 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,577 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,852 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,857 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,646 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,112 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,374 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,929 |
| Countries with Megacities | 0 | - | 4.99 | 246,354 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,857 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,768 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,308 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,711 |
| Countries by Official Language | 0 | - | 4.95 | 192,641 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,957 |
| Countries in their Native Language | 0 | - | 4.99 | 196,518 |
| Independence from Whom | 0 | - | 4.99 | 209,542 |
| Subdivisions by Country | 0 | - | 4.86 | 50,040 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,628 |
| Megadiverse Countries | 0 | - | 4.97 | 133,847 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,690 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,892 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,385 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,845 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,576 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,955 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,631 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,086 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,191 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,726 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,444 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,381 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,452 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,467 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,027 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,718 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,267 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,251 |
| Communist Countries in History | 0 | - | 4.63 | 492,212 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,213 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,916 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,881 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,572 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,801 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,995 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,200 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,897 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,282 |
| Widest Countries East to West | 0 | - | 4.92 | 128,547 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,198 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,127 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,534 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,641 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,545 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,971 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,037 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,557 |
| Countries with Double Letters | 0 | - | 4.97 | 93,267 |
| Countries that End in N | 0 | - | 4.94 | 156,331 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,543 |
| Countries with Six Letters | 0 | - | 4.93 | 210,241 |
| Countries with W | 0 | - | 4.97 | 158,147 |
| Countries with Z | 0 | - | 4.98 | 287,717 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,457 |
| Countries That End in U | 0 | - | 4.95 | 119,470 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,419 |
| Countries that End in O | 0 | - | 4.92 | 158,500 |
| Countries that End in R | 0 | - | 4.87 | 118,231 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,824 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,906 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,214 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,413 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,634 |
| Countries That End in Y | 0 | - | 4.90 | 185,170 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,223 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,585 |
| Countries that End in I | 0 | - | 4.94 | 134,343 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,067 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,159 |
| Countries That End in NIA | 0 | - | 4.92 | 108,948 |
| Countries That End in BIA | 0 | - | 4.92 | 147,641 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,003 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,428 |
| Countries That End in RIA | 0 | - | 4.93 | 126,035 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,943 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,050 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,469 |
