| Countries of the World Quiz | 0 | - | 5.00 | 47,355,363 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,467 |
| NATO Countries | 0 | - | 4.98 | 279,483 |
| EU Countries Quiz | 0 | - | 4.99 | 273,123 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,614 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 272,146 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,874 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,078 |
| Countries with NO Military | 0 | - | 4.97 | 62,022 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,434 |
| Landlocked Countries | 0 | - | 4.99 | 419,240 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,888 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,196 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,407 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,686 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,036 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,957 |
| Buddhist Countries | 0 | - | 4.96 | 144,142 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,060 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,275 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,758,683 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,125 |
| Himalayan Countries | 0 | - | 4.95 | 137,545 |
| Andean Countries | 0 | - | 4.95 | 84,000 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,270 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,741 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,889 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,390 |
| Danube Countries | 0 | - | 4.97 | 71,700 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,609 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,093 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,705 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,781 |
| European Landlocked Countries | 0 | - | 4.99 | 146,809 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,173 |
| Countries with the Most Species | 0 | - | 4.99 | 102,946 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,321 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,437 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,598 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,328 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,005 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,392 |
| Countries in the Alps | 0 | - | 4.87 | 117,738 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,167 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,431 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,440 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,027 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,138 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,738 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,316 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,218 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,983 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,580 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,502 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,351 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,956 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,211 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,237 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,250 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,084 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,584 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,563 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,520 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,295 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,015 |
| Largest Countries By Category | 0 | - | 4.97 | 157,687 |
| Countries by Countries | 0 | - | 4.96 | 62,865 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,355 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,254 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,684 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,262 |
| Island Countries | 0 | - | 4.99 | 709,896 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,386 |
| Northernmost Countries | 0 | - | 4.99 | 360,614 |
| Countries of South America | 0 | - | 5.00 | 923,277 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,654 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,867,266 |
| "Land" Countries | 0 | - | 4.98 | 335,867 |
| Countries that Start with A | 0 | - | 4.98 | 2,159,680 |
| Countries that Start with B | 0 | - | 4.95 | 2,291,586 |
| Countries that Start with C | 0 | - | 4.96 | 1,819,761 |
| Countries that Start with D | 0 | - | 4.96 | 708,016 |
| Countries that Start with E | 0 | - | 4.95 | 1,375,320 |
| Countries that Start with G | 0 | - | 4.97 | 1,501,004 |
| Countries that Start with H | 0 | - | 4.96 | 603,438 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,541 |
| Countries that Start with J | 0 | - | 4.98 | 601,248 |
| Countries that Start with K | 0 | - | 4.97 | 814,589 |
| Countries that Start with L | 0 | - | 4.98 | 1,089,272 |
| Countries that Start with N | 0 | - | 4.93 | 1,116,264 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,732 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,862 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,752 |
| Countries that Start with U | 0 | - | 4.97 | 903,589 |
| Countries that Start with V | 0 | - | 4.98 | 608,619 |
| Countries that Start with F | 0 | - | 4.83 | 616,562 |
| Countries that Start with M | 0 | - | 4.97 | 1,380,052 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,172 |
| Orthodox Countries | 0 | - | 4.92 | 131,382 |
| Richest Island Countries | 0 | - | 4.84 | 100,349 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,376,370 |
| Monarchies of Europe | 0 | - | 4.90 | 97,999 |
| Monarchies of Asia | 0 | - | 4.97 | 71,007 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,602 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,794 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,208 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,183 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,487 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,315 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,319 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,641 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,112 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,408 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,543 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,996 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,205 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,118 |
| Countries with Megacities | 0 | - | 4.99 | 261,262 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,980 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,045 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,256 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,066 |
| Countries by Official Language | 0 | - | 4.95 | 194,689 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,608 |
| Countries in their Native Language | 0 | - | 4.99 | 198,243 |
| Independence from Whom | 0 | - | 4.99 | 211,388 |
| Subdivisions by Country | 0 | - | 4.86 | 50,299 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,767 |
| Megadiverse Countries | 0 | - | 4.96 | 134,789 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,584 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,202 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,765 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,027 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,739 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,399 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,019 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,861 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,506 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,000 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,048 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,733 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,008 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,797 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,013 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,822 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,794 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,064 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,572 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,963 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,680 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,415 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,552 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,706 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,858 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,288 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,315 |
| Widest Countries East to West | 0 | - | 4.92 | 129,403 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,388 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,989 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,003 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,536 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,254 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,578 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,247 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,732 |
| Countries with Double Letters | 0 | - | 4.97 | 95,141 |
| Countries that End in N | 0 | - | 4.95 | 170,089 |
| Countries with Five Letters | 0 | - | 4.96 | 280,528 |
| Countries with Six Letters | 0 | - | 4.94 | 212,542 |
| Countries with W | 0 | - | 4.97 | 159,549 |
| Countries with Z | 0 | - | 4.98 | 289,882 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,795 |
| Countries That End in U | 0 | - | 4.95 | 120,425 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,796 |
| Countries that End in O | 0 | - | 4.92 | 159,216 |
| Countries that End in R | 0 | - | 4.87 | 118,748 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,524 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,385 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,147 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,105 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,696 |
| Countries That End in Y | 0 | - | 4.91 | 185,657 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,274 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,463 |
| Countries that End in I | 0 | - | 4.94 | 134,886 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,128 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,590 |
| Countries That End in NIA | 0 | - | 4.92 | 109,532 |
| Countries That End in BIA | 0 | - | 4.93 | 148,869 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,754 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,090 |
| Countries That End in RIA | 0 | - | 4.93 | 126,558 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,662 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,774 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,272 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,640 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,166 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,344 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,703 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,267 |
