| Countries with the Most Military Troops | 0 | - | 4.95 | 287,328 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,726 |
| Countries with NO Military | 0 | - | 4.97 | 61,918 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,308,223 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,020 |
| NATO Countries | 0 | - | 4.98 | 279,135 |
| EU Countries Quiz | 0 | - | 4.99 | 272,738 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,643 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,910 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,372 |
| Landlocked Countries | 0 | - | 4.99 | 418,471 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,731 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,326 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,627 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,605 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,826 |
| Buddhist Countries | 0 | - | 4.96 | 143,676 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,564 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,138 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,754,442 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,739 |
| Himalayan Countries | 0 | - | 4.94 | 137,207 |
| Andean Countries | 0 | - | 4.95 | 83,817 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,065 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,468 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,748 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,280 |
| Countries in World War I | 0 | - | 4.88 | 227,786 |
| Danube Countries | 0 | - | 4.97 | 71,604 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,476 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,004 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,561 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,626 |
| European Landlocked Countries | 0 | - | 4.99 | 146,716 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,056 |
| Countries with the Most Species | 0 | - | 4.99 | 102,859 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,660 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,195 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,411 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,570 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,273 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,944 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,325 |
| Countries in the Alps | 0 | - | 4.87 | 117,615 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,090 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,285 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,379 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,934 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,042 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,411 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,224 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,142 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,938 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,515 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,449 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,314 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,889 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,159 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,176 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,098 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,030 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,546 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,464 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,193 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,120 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,962 |
| Largest Countries By Category | 0 | - | 4.97 | 157,563 |
| Countries by Countries | 0 | - | 4.96 | 62,795 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,282 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,640 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,492 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,899 |
| Island Countries | 0 | - | 4.99 | 709,590 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,646 |
| Northernmost Countries | 0 | - | 4.99 | 360,293 |
| Countries of South America | 0 | - | 5.00 | 922,418 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,365 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,865,255 |
| "Land" Countries | 0 | - | 4.98 | 335,702 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,293 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,305 |
| Countries that Start with C | 0 | - | 4.96 | 1,818,703 |
| Countries that Start with D | 0 | - | 4.96 | 707,287 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,468 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,100 |
| Countries that Start with H | 0 | - | 4.96 | 602,804 |
| Countries that Start with I | 0 | - | 4.92 | 1,285,843 |
| Countries that Start with J | 0 | - | 4.98 | 600,652 |
| Countries that Start with K | 0 | - | 4.97 | 813,758 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,585 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,517 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,036 |
| Countries that Start with S | 0 | - | 4.98 | 1,751,983 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,268 |
| Countries that Start with U | 0 | - | 4.97 | 903,193 |
| Countries that Start with V | 0 | - | 4.98 | 608,259 |
| Countries that Start with F | 0 | - | 4.83 | 616,088 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,286 |
| Countries with U.S. Troops | 0 | - | 4.38 | 131,985 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,032 |
| Orthodox Countries | 0 | - | 4.92 | 131,238 |
| Richest Island Countries | 0 | - | 4.84 | 100,271 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,861 |
| Monarchies of Europe | 0 | - | 4.90 | 97,927 |
| Monarchies of Asia | 0 | - | 4.97 | 70,962 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,483 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,763 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,106 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,057 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,371 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,261 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,240 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,130 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,003 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,330 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,416 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,861 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,136 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,889 |
| Countries with Megacities | 0 | - | 4.99 | 256,827 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,756 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,916 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,056 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,919 |
| Countries by Official Language | 0 | - | 4.95 | 194,578 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,446 |
| Countries in their Native Language | 0 | - | 4.99 | 198,120 |
| Independence from Whom | 0 | - | 4.99 | 211,225 |
| Subdivisions by Country | 0 | - | 4.86 | 50,271 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,632 |
| Megadiverse Countries | 0 | - | 4.96 | 134,741 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,488 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,161 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,727 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,005 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,668 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,354 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,908 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,818 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,467 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,972 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,872 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,691 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,965 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,754 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,873 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,703 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,749 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,993 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,426 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,889 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,597 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,238 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,481 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,645 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,794 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,246 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,253 |
| Widest Countries East to West | 0 | - | 4.92 | 129,333 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,375 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,913 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,982 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,486 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,173 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,508 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,219 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,722 |
| Countries with Double Letters | 0 | - | 4.97 | 95,029 |
| Countries that End in N | 0 | - | 4.95 | 169,861 |
| Countries with Five Letters | 0 | - | 4.96 | 279,743 |
| Countries with Six Letters | 0 | - | 4.94 | 212,401 |
| Countries with W | 0 | - | 4.97 | 159,483 |
| Countries with Z | 0 | - | 4.98 | 289,723 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,675 |
| Countries That End in U | 0 | - | 4.95 | 120,385 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,697 |
| Countries that End in O | 0 | - | 4.92 | 159,174 |
| Countries that End in R | 0 | - | 4.87 | 118,719 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,495 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,253 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,067 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,056 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,641 |
| Countries That End in Y | 0 | - | 4.90 | 185,633 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,178 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,378 |
| Countries that End in I | 0 | - | 4.94 | 134,845 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,033 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,556 |
| Countries That End in NIA | 0 | - | 4.92 | 109,494 |
| Countries That End in BIA | 0 | - | 4.93 | 148,811 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,672 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,018 |
| Countries That End in RIA | 0 | - | 4.93 | 126,508 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,594 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,591 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,171 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,518 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,071 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,294 |
