| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,470 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,414 |
| NATO Countries | 0 | - | 4.98 | 283,813 |
| EU Countries Quiz | 0 | - | 4.99 | 278,663 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,664 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,936 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,157 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,941,571 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,180 |
| Landlocked Countries | 0 | - | 4.99 | 426,894 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,809,749 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,743 |
| Himalayan Countries | 0 | - | 4.93 | 140,665 |
| Andean Countries | 0 | - | 4.94 | 85,724 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,846 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,381 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,403 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,632 |
| Danube Countries | 0 | - | 4.97 | 72,512 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,734 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,937 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,361 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,817 |
| European Landlocked Countries | 0 | - | 4.99 | 147,702 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,473 |
| Countries with the Most Species | 0 | - | 4.99 | 103,625 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,573 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,802 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,935 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,899 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,655 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,102 |
| Countries in the Alps | 0 | - | 4.87 | 118,916 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,896 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,054 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,036 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,133 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,087 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,353 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,529 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,962 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,491 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,853 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,280 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,933 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,812 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,639 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,889 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,987 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,067 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,693 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,100 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,797 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,130 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,388 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,586 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,243 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,215 |
| Largest Countries By Category | 0 | - | 4.97 | 159,019 |
| Countries by Countries | 0 | - | 4.97 | 63,766 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,148 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,281 |
| Buddhist Countries | 0 | - | 4.96 | 145,209 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,191 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,201 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,876 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,236 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,951 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,146 |
| Island Countries | 0 | - | 4.99 | 712,864 |
| Countries in World War I | 0 | - | 4.88 | 229,354 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,336 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,723 |
| Northernmost Countries | 0 | - | 4.99 | 364,423 |
| Countries of South America | 0 | - | 5.00 | 933,734 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,789 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,796 |
| "Land" Countries | 0 | - | 4.98 | 338,832 |
| Countries with U.S. Troops | 0 | - | 4.38 | 132,662 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,553 |
| Orthodox Countries | 0 | - | 4.92 | 132,899 |
| Richest Island Countries | 0 | - | 4.85 | 101,306 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,993 |
| Monarchies of Europe | 0 | - | 4.90 | 98,987 |
| Monarchies of Asia | 0 | - | 4.97 | 71,568 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,459 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,259 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,326 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,312 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,307 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,602 |
| Countries by Oil Consumption | 0 | - | 4.96 | 124,151 |
| Largest Economies in 2050 | 0 | - | 4.88 | 112,010 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,338 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,091 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,178 |
| Countries that Start with A | 0 | - | 4.98 | 2,177,539 |
| Countries that Start with B | 0 | - | 4.95 | 2,308,172 |
| Countries that Start with C | 0 | - | 4.96 | 1,832,776 |
| Countries that Start with D | 0 | - | 4.96 | 717,338 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,131 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,650 |
| Countries that Start with H | 0 | - | 4.96 | 610,202 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,403 |
| Countries that Start with J | 0 | - | 4.98 | 607,601 |
| Countries that Start with K | 0 | - | 4.97 | 821,425 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,677 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,727 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,878 |
| Countries that Start with S | 0 | - | 4.98 | 1,764,313 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,556 |
| Countries that Start with U | 0 | - | 4.97 | 908,966 |
| Countries that Start with V | 0 | - | 4.98 | 612,374 |
| Countries that Start with F | 0 | - | 4.83 | 621,774 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,168 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,643 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,277 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,193 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,404 |
| Countries with Megacities | 0 | - | 4.99 | 267,621 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,050 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,276 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,388 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,381 |
| Countries by Official Language | 0 | - | 4.95 | 196,155 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,845 |
| Countries in their Native Language | 0 | - | 4.99 | 199,891 |
| Independence from Whom | 0 | - | 4.99 | 213,309 |
| Subdivisions by Country | 0 | - | 4.87 | 50,650 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,602 |
| Megadiverse Countries | 0 | - | 4.96 | 147,841 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,076 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,566 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,772 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,245 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,407 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,907 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,231 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,604 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,141 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,280 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,697 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,458 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,484 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,195 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,617 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,773 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,433 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,188 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,650 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,815 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,519 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,627 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,816 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,743 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,896 |
| Widest Countries East to West | 0 | - | 4.92 | 130,800 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,623 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,350 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,545 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,130 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,067 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,577 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,526 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,916 |
| Countries with Double Letters | 0 | - | 4.96 | 97,491 |
| Countries that End in N | 0 | - | 4.95 | 172,523 |
| Countries with Five Letters | 0 | - | 4.96 | 284,475 |
| Countries with Six Letters | 0 | - | 4.94 | 214,842 |
| Countries with W | 0 | - | 4.96 | 161,224 |
| Countries with Z | 0 | - | 4.98 | 292,865 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,585 |
| Countries That End in U | 0 | - | 4.95 | 121,340 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,335 |
| Countries that End in O | 0 | - | 4.92 | 160,337 |
| Countries that End in R | 0 | - | 4.87 | 119,258 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,031 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,071 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 183,575 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,094 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,567 |
| Countries That End in Y | 0 | - | 4.91 | 186,150 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,083 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,376 |
| Countries that End in I | 0 | - | 4.94 | 135,388 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,129 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,117 |
| Countries That End in NIA | 0 | - | 4.92 | 110,129 |
| Countries That End in BIA | 0 | - | 4.93 | 149,693 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,883 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,859 |
| Countries That End in RIA | 0 | - | 4.93 | 127,117 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,500 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,847 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,327 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,783 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,337 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,883 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,411 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,582 |
