| Countries of the World Quiz | 0 | - | 5.00 | 47,055,863 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,895 |
| NATO Countries | 0 | - | 4.98 | 277,237 |
| EU Countries Quiz | 0 | - | 4.99 | 270,918 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,746 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,471 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,606 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,128 |
| Countries with NO Military | 0 | - | 4.97 | 61,378 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,049 |
| Landlocked Countries | 0 | - | 4.99 | 415,334 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,941 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,543 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,910 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,313 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,218 |
| Buddhist Countries | 0 | - | 4.96 | 143,201 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,480 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,454 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,730,657 |
| World Currency Quiz | 0 | - | 4.92 | 299,607 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,283 |
| Himalayan Countries | 0 | - | 4.95 | 135,968 |
| Andean Countries | 0 | - | 4.94 | 83,165 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,488 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,623 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,184 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,827 |
| Danube Countries | 0 | - | 4.97 | 71,263 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,994 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,712 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,865 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,805 |
| European Landlocked Countries | 0 | - | 4.99 | 145,962 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,517 |
| Countries with the Most Species | 0 | - | 4.99 | 95,348 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,646 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,268 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,439 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,065 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,717 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,073 |
| Countries in the Alps | 0 | - | 4.86 | 117,119 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,758 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,588 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,159 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,584 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,377 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,136 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,799 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,896 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,689 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,206 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,273 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,137 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,616 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,878 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,888 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,456 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,798 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,350 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,025 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,259 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,183 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,732 |
| Largest Countries By Category | 0 | - | 4.97 | 157,025 |
| Countries by Countries | 0 | - | 4.96 | 62,441 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,940 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,814 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,801 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,780 |
| Island Countries | 0 | - | 4.99 | 708,316 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,677 |
| Northernmost Countries | 0 | - | 4.99 | 358,678 |
| Countries of South America | 0 | - | 5.00 | 917,768 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,129 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,260 |
| "Land" Countries | 0 | - | 4.98 | 334,094 |
| Countries that Start with A | 0 | - | 4.98 | 2,150,883 |
| Countries that Start with B | 0 | - | 4.95 | 2,283,465 |
| Countries that Start with C | 0 | - | 4.96 | 1,813,191 |
| Countries that Start with D | 0 | - | 4.96 | 703,543 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,887 |
| Countries that Start with G | 0 | - | 4.97 | 1,495,348 |
| Countries that Start with H | 0 | - | 4.96 | 599,607 |
| Countries that Start with I | 0 | - | 4.92 | 1,282,227 |
| Countries that Start with J | 0 | - | 4.98 | 597,639 |
| Countries that Start with K | 0 | - | 4.97 | 810,890 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,765 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,685 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,336 |
| Countries that Start with S | 0 | - | 4.98 | 1,747,118 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,595 |
| Countries that Start with U | 0 | - | 4.97 | 901,036 |
| Countries that Start with V | 0 | - | 4.98 | 606,105 |
| Countries that Start with F | 0 | - | 4.83 | 613,566 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,416 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,372 |
| Orthodox Countries | 0 | - | 4.91 | 130,669 |
| Richest Island Countries | 0 | - | 4.84 | 99,792 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,007 |
| Monarchies of Europe | 0 | - | 4.90 | 97,545 |
| Monarchies of Asia | 0 | - | 4.97 | 70,729 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,777 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,542 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,589 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,492 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,783 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,703 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,831 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 266,507 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 103,484 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,920 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,891 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,256 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,712 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,902 |
| Countries with Megacities | 0 | - | 4.99 | 248,179 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,790 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,357 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,173 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,294 |
| Countries by Official Language | 0 | - | 4.95 | 193,182 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,714 |
| Countries in their Native Language | 0 | - | 4.99 | 197,013 |
| Independence from Whom | 0 | - | 4.99 | 210,149 |
| Subdivisions by Country | 0 | - | 4.86 | 50,147 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,062 |
| Megadiverse Countries | 0 | - | 4.96 | 134,445 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,176 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,010 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,546 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,907 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,879 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,124 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,327 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,444 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,300 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,787 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,917 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,518 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,621 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,581 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,283 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,185 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,465 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,581 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,779 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,517 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,239 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,336 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,110 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,309 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,504 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,076 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,529 |
| Widest Countries East to West | 0 | - | 4.92 | 129,024 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,284 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,483 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,651 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,865 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,825 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,228 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,663 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,641 |
| Countries with Double Letters | 0 | - | 4.96 | 93,688 |
| Countries that End in N | 0 | - | 4.94 | 157,148 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,040 |
| Countries with Six Letters | 0 | - | 4.93 | 210,699 |
| Countries with W | 0 | - | 4.97 | 158,420 |
| Countries with Z | 0 | - | 4.98 | 288,247 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,767 |
| Countries That End in U | 0 | - | 4.95 | 119,615 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,879 |
| Countries that End in O | 0 | - | 4.92 | 158,660 |
| Countries that End in R | 0 | - | 4.87 | 118,379 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,935 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,424 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,564 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,652 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,201 |
| Countries That End in Y | 0 | - | 4.90 | 185,290 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,623 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,901 |
| Countries that End in I | 0 | - | 4.94 | 134,545 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,482 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,302 |
| Countries That End in NIA | 0 | - | 4.92 | 109,121 |
| Countries That End in BIA | 0 | - | 4.92 | 147,852 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,262 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,636 |
| Countries That End in RIA | 0 | - | 4.93 | 126,202 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,187 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,736 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,686 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,040 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,588 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,028 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,287 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,800 |
