| Countries of the World Quiz | 0 | - | 5.00 | 47,624,505 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,825 |
| NATO Countries | 0 | - | 4.98 | 281,787 |
| EU Countries Quiz | 0 | - | 4.99 | 275,808 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,574 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,757 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,374 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,062 |
| Countries with NO Military | 0 | - | 4.97 | 62,707 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,827 |
| Landlocked Countries | 0 | - | 4.99 | 422,507 |
| Countries with the Most Christians | 0 | - | 4.93 | 143,673 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,751 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,772 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,936 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,928 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,587 |
| Buddhist Countries | 0 | - | 4.96 | 144,670 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,065 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,064 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,782,580 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,784 |
| Himalayan Countries | 0 | - | 4.95 | 138,968 |
| Andean Countries | 0 | - | 4.93 | 84,761 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,985 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,047 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,584 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,907 |
| Danube Countries | 0 | - | 4.97 | 72,086 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,105 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,484 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,432 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,910 |
| European Landlocked Countries | 0 | - | 4.99 | 147,214 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,751 |
| Countries with the Most Species | 0 | - | 4.99 | 103,296 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,865 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,627 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,745 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,589 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,302 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,727 |
| Countries in the Alps | 0 | - | 4.87 | 118,292 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,445 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,151 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,712 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,660 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,576 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,993 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,738 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,559 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,214 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,912 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,687 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,565 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,274 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,530 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,592 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,029 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,360 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,392 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,164 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,211 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,284 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,274 |
| Largest Countries By Category | 0 | - | 4.97 | 158,320 |
| Countries by Countries | 0 | - | 4.96 | 63,307 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,733 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,036 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,659 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,668 |
| Island Countries | 0 | - | 4.99 | 711,223 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,520 |
| Northernmost Countries | 0 | - | 4.99 | 362,222 |
| Countries of South America | 0 | - | 5.00 | 928,103 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,879 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,925 |
| "Land" Countries | 0 | - | 4.98 | 337,488 |
| Countries that Start with A | 0 | - | 4.98 | 2,167,661 |
| Countries that Start with B | 0 | - | 4.95 | 2,298,957 |
| Countries that Start with C | 0 | - | 4.96 | 1,825,742 |
| Countries that Start with D | 0 | - | 4.96 | 712,290 |
| Countries that Start with E | 0 | - | 4.95 | 1,380,274 |
| Countries that Start with G | 0 | - | 4.97 | 1,506,518 |
| Countries that Start with H | 0 | - | 4.96 | 606,607 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,743 |
| Countries that Start with J | 0 | - | 4.98 | 604,189 |
| Countries that Start with K | 0 | - | 4.97 | 817,757 |
| Countries that Start with L | 0 | - | 4.98 | 1,093,065 |
| Countries that Start with N | 0 | - | 4.93 | 1,120,129 |
| Countries that Start with P | 0 | - | 4.94 | 1,218,488 |
| Countries that Start with S | 0 | - | 4.98 | 1,758,150 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,642 |
| Countries that Start with U | 0 | - | 4.97 | 905,921 |
| Countries that Start with V | 0 | - | 4.98 | 610,352 |
| Countries that Start with F | 0 | - | 4.83 | 619,036 |
| Countries that Start with M | 0 | - | 4.97 | 1,384,308 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,852 |
| Orthodox Countries | 0 | - | 4.92 | 132,330 |
| Richest Island Countries | 0 | - | 4.85 | 100,837 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,385,002 |
| Monarchies of Europe | 0 | - | 4.90 | 98,400 |
| Monarchies of Asia | 0 | - | 4.97 | 71,265 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,193 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,051 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,727 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,695 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,033 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,552 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,638 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,867 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,579 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,746 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,073 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,571 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,647 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,044 |
| Countries with Megacities | 0 | - | 4.99 | 264,918 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,867 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,559 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,136 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,630 |
| Countries by Official Language | 0 | - | 4.95 | 195,353 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,518 |
| Countries in their Native Language | 0 | - | 4.99 | 199,143 |
| Independence from Whom | 0 | - | 4.99 | 212,232 |
| Subdivisions by Country | 0 | - | 4.87 | 50,451 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,822 |
| Megadiverse Countries | 0 | - | 4.96 | 135,057 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,193 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,385 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,264 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,125 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,199 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,628 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,543 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,069 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,686 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,163 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,786 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,920 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,232 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,995 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,428 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,521 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,095 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,401 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,195 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,343 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,045 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,369 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,947 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,058 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,339 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,473 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,609 |
| Widest Countries East to West | 0 | - | 4.92 | 129,705 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,470 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,442 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,142 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,803 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,636 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,917 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,395 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,813 |
| Countries with Double Letters | 0 | - | 4.96 | 96,343 |
| Countries that End in N | 0 | - | 4.95 | 171,235 |
| Countries with Five Letters | 0 | - | 4.96 | 282,700 |
| Countries with Six Letters | 0 | - | 4.94 | 213,676 |
| Countries with W | 0 | - | 4.97 | 160,406 |
| Countries with Z | 0 | - | 4.98 | 291,586 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,774 |
| Countries That End in U | 0 | - | 4.95 | 120,886 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,539 |
| Countries that End in O | 0 | - | 4.92 | 159,544 |
| Countries that End in R | 0 | - | 4.87 | 118,991 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,760 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,195 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,748 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,516 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,435 |
| Countries That End in Y | 0 | - | 4.91 | 185,901 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,995 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,911 |
| Countries that End in I | 0 | - | 4.94 | 135,127 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,170 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,846 |
| Countries That End in NIA | 0 | - | 4.92 | 109,823 |
| Countries That End in BIA | 0 | - | 4.93 | 149,253 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,160 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,467 |
| Countries That End in RIA | 0 | - | 4.93 | 126,845 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,054 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,739 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,772 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,199 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,750 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,604 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,066 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,460 |
