| Countries of the World Quiz | 0 | - | 5.00 | 47,315,350 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,082 |
| NATO Countries | 0 | - | 4.98 | 279,178 |
| EU Countries Quiz | 0 | - | 4.99 | 272,803 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,374 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,796 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,682 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,943 |
| Countries with NO Military | 0 | - | 4.97 | 61,929 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,379 |
| Landlocked Countries | 0 | - | 4.99 | 418,617 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,757 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,104 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,336 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,638 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,679 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,843 |
| Buddhist Countries | 0 | - | 4.96 | 143,697 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,590 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,153 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,755,098 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,831 |
| Himalayan Countries | 0 | - | 4.94 | 137,282 |
| Andean Countries | 0 | - | 4.95 | 83,858 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,136 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,536 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,785 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,305 |
| Danube Countries | 0 | - | 4.97 | 71,618 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,507 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,022 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,586 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,658 |
| European Landlocked Countries | 0 | - | 4.99 | 146,737 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,090 |
| Countries with the Most Species | 0 | - | 4.99 | 102,874 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,222 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,422 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,576 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,282 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,962 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,338 |
| Countries in the Alps | 0 | - | 4.87 | 117,634 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,101 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,313 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,387 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,955 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,055 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,425 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,245 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,158 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,945 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,525 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,458 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,323 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,897 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,171 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,183 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,128 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,044 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,554 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,483 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,237 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,154 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,975 |
| Largest Countries By Category | 0 | - | 4.97 | 157,584 |
| Countries by Countries | 0 | - | 4.96 | 62,812 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,296 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,731 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,514 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,952 |
| Island Countries | 0 | - | 4.99 | 709,621 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,756 |
| Northernmost Countries | 0 | - | 4.99 | 360,357 |
| Countries of South America | 0 | - | 5.00 | 922,552 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,546 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,865,547 |
| "Land" Countries | 0 | - | 4.98 | 335,730 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,522 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,510 |
| Countries that Start with C | 0 | - | 4.96 | 1,818,877 |
| Countries that Start with D | 0 | - | 4.96 | 707,400 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,593 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,260 |
| Countries that Start with H | 0 | - | 4.96 | 602,890 |
| Countries that Start with I | 0 | - | 4.92 | 1,285,956 |
| Countries that Start with J | 0 | - | 4.98 | 600,746 |
| Countries that Start with K | 0 | - | 4.97 | 813,829 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,683 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,634 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,132 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,144 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,342 |
| Countries that Start with U | 0 | - | 4.97 | 903,244 |
| Countries that Start with V | 0 | - | 4.98 | 608,307 |
| Countries that Start with F | 0 | - | 4.83 | 616,159 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,398 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,608 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,047 |
| Orthodox Countries | 0 | - | 4.92 | 131,268 |
| Richest Island Countries | 0 | - | 4.84 | 100,283 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,103 |
| Battle to Country | 0 | - | 4.91 | 53,129 |
| Monarchies of Europe | 0 | - | 4.90 | 97,939 |
| Monarchies of Asia | 0 | - | 4.97 | 70,969 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,412 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,444 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,498 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,770 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,119 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,074 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,386 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,269 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,251 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,209 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,015 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,342 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,433 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,872 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,147 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,933 |
| Countries with Megacities | 0 | - | 4.99 | 257,711 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,801 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,936 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,081 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,945 |
| Countries by Official Language | 0 | - | 4.95 | 194,586 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,466 |
| Countries in their Native Language | 0 | - | 4.99 | 198,135 |
| Independence from Whom | 0 | - | 4.99 | 211,247 |
| Subdivisions by Country | 0 | - | 4.86 | 50,273 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,650 |
| Megadiverse Countries | 0 | - | 4.96 | 134,747 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,510 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,170 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,734 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,007 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,673 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,360 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,932 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,825 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,468 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,975 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,894 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,699 |
| Countries with the Top Chess Players | 0 | - | 4.53 | 75,597 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,971 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,758 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,124 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,309 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,893 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,722 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,120 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,755 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,005 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,446 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,898 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,609 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,268 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,489 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,651 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,803 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,248 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,257 |
| Widest Countries East to West | 0 | - | 4.92 | 129,341 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,376 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,927 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,983 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,492 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,184 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,520 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,222 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,723 |
| Countries with Double Letters | 0 | - | 4.97 | 95,043 |
| Countries that End in N | 0 | - | 4.95 | 169,899 |
| Countries with Five Letters | 0 | - | 4.96 | 279,867 |
| Countries with Six Letters | 0 | - | 4.94 | 212,422 |
| Countries with W | 0 | - | 4.97 | 159,494 |
| Countries with Z | 0 | - | 4.98 | 289,740 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,692 |
| Countries That End in U | 0 | - | 4.95 | 120,393 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,712 |
| Countries that End in O | 0 | - | 4.92 | 159,180 |
| Countries that End in R | 0 | - | 4.87 | 118,723 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,501 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,270 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,074 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,064 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,646 |
| Countries That End in Y | 0 | - | 4.90 | 185,637 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,187 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,394 |
| Countries that End in I | 0 | - | 4.94 | 134,849 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,040 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,562 |
| Countries That End in NIA | 0 | - | 4.92 | 109,499 |
| Countries That End in BIA | 0 | - | 4.93 | 148,822 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,680 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,025 |
| Countries That End in RIA | 0 | - | 4.93 | 126,514 |
