| NATO Countries | 0 | - | 4.98 | 276,422 |
| EU Countries Quiz | 0 | - | 4.99 | 270,404 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,988,490 |
| Majority Muslim Countries | 0 | - | 4.98 | 369,047 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,337 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,883 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,266 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,945 |
| Countries with NO Military | 0 | - | 4.97 | 61,265 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,981 |
| Landlocked Countries | 0 | - | 4.99 | 414,444 |
| OPEC Countries | 0 | - | 4.74 | 84,846 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,642 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,410 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,818 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,232 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,039 |
| Buddhist Countries | 0 | - | 4.96 | 143,071 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,148 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,264 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,723,588 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,934 |
| Himalayan Countries | 0 | - | 4.95 | 135,648 |
| Andean Countries | 0 | - | 4.94 | 82,995 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,347 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,397 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,045 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,720 |
| Danube Countries | 0 | - | 4.97 | 71,161 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,877 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,623 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,669 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,569 |
| European Landlocked Countries | 0 | - | 4.99 | 145,867 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,336 |
| Countries with the Most Species | 0 | - | 4.99 | 95,292 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,486 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,229 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,398 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,008 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,647 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,012 |
| Countries in the Alps | 0 | - | 4.86 | 116,958 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,662 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,427 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,084 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,495 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,272 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,077 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,677 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,828 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,563 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,133 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,227 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,092 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,519 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,814 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,817 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,249 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,724 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,303 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,881 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,754 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,943 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,675 |
| Largest Countries By Category | 0 | - | 4.97 | 156,891 |
| Countries by Countries | 0 | - | 4.96 | 62,341 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,844 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,983 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,432 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,252 |
| Island Countries | 0 | - | 4.99 | 707,942 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,589 |
| Northernmost Countries | 0 | - | 4.99 | 358,175 |
| Countries of South America | 0 | - | 5.00 | 916,209 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,342 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,303 |
| "Land" Countries | 0 | - | 4.98 | 333,881 |
| Countries that Start with A | 0 | - | 4.97 | 2,148,823 |
| Countries that Start with B | 0 | - | 4.95 | 2,281,579 |
| Countries that Start with C | 0 | - | 4.96 | 1,811,744 |
| Countries that Start with D | 0 | - | 4.96 | 702,512 |
| Countries that Start with E | 0 | - | 4.95 | 1,368,664 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,057 |
| Countries that Start with H | 0 | - | 4.96 | 598,743 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,226 |
| Countries that Start with J | 0 | - | 4.98 | 596,794 |
| Countries that Start with K | 0 | - | 4.97 | 810,123 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,808 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,694 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,418 |
| Countries that Start with S | 0 | - | 4.98 | 1,745,809 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,883 |
| Countries that Start with U | 0 | - | 4.97 | 900,483 |
| Countries that Start with V | 0 | - | 4.98 | 605,606 |
| Countries that Start with F | 0 | - | 4.83 | 612,854 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,354 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,179 |
| Orthodox Countries | 0 | - | 4.91 | 130,515 |
| Richest Island Countries | 0 | - | 4.84 | 99,631 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,681 |
| Monarchies of Europe | 0 | - | 4.90 | 97,428 |
| Monarchies of Asia | 0 | - | 4.97 | 70,659 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,615 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,481 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,402 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,305 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,614 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,600 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,738 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,476 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 103,062 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,803 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,726 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,080 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,587 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,649 |
| Countries with Megacities | 0 | - | 4.99 | 247,628 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,500 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,215 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,899 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,147 |
| Countries by Official Language | 0 | - | 4.95 | 192,953 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,380 |
| Countries in their Native Language | 0 | - | 4.99 | 196,805 |
| Independence from Whom | 0 | - | 4.99 | 209,912 |
| Subdivisions by Country | 0 | - | 4.86 | 50,104 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,903 |
| Megadiverse Countries | 0 | - | 4.97 | 133,967 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,965 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,958 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,469 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,878 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,770 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,058 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,194 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,222 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,254 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,761 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,743 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,458 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,559 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,542 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,163 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,025 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,401 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,417 |
| Communist Countries in History | 0 | - | 4.63 | 492,921 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,569 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,357 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,083 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,032 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,999 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,184 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,388 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,010 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,435 |
| Widest Countries East to West | 0 | - | 4.92 | 128,937 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,253 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,345 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,607 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,762 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,705 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,136 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 73,262 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,620 |
| Countries with Double Letters | 0 | - | 4.96 | 93,555 |
| Countries that End in N | 0 | - | 4.94 | 157,037 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,861 |
| Countries with Six Letters | 0 | - | 4.93 | 210,533 |
| Countries with W | 0 | - | 4.97 | 158,338 |
| Countries with Z | 0 | - | 4.98 | 288,063 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,655 |
| Countries That End in U | 0 | - | 4.95 | 119,581 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,736 |
| Countries that End in O | 0 | - | 4.92 | 158,612 |
| Countries that End in R | 0 | - | 4.87 | 118,328 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,895 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,268 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,454 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,574 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,119 |
| Countries That End in Y | 0 | - | 4.90 | 185,251 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,500 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,800 |
| Countries that End in I | 0 | - | 4.94 | 134,488 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,335 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,251 |
| Countries That End in NIA | 0 | - | 4.92 | 109,068 |
| Countries That End in BIA | 0 | - | 4.92 | 147,782 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,163 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,576 |
| Countries That End in RIA | 0 | - | 4.93 | 126,144 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,101 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,508 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,601 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,968 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,457 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,972 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,201 |
