| Countries of the World Quiz | 0 | - | 5.00 | 47,464,990 |
| Majority Muslim Countries | 0 | - | 4.98 | 374,387 |
| NATO Countries | 0 | - | 4.98 | 280,465 |
| EU Countries Quiz | 0 | - | 4.99 | 274,298 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,409 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,263 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,564 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,536 |
| Countries with NO Military | 0 | - | 4.97 | 62,332 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,612 |
| Landlocked Countries | 0 | - | 4.99 | 420,585 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,232 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,408 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,558 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,797 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,247 |
| Buddhist Countries | 0 | - | 4.96 | 144,360 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,468 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,576 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,959 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,005 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,683 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,751 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,615 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,238 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,219 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,589 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,256 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,166 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,006 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,274 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,666 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,264 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,737 |
| Himalayan Countries | 0 | - | 4.95 | 138,107 |
| Andean Countries | 0 | - | 4.95 | 84,276 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,496 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,351 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,126 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,576 |
| Danube Countries | 0 | - | 4.97 | 71,839 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,804 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,245 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,983 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,437 |
| European Landlocked Countries | 0 | - | 4.99 | 146,977 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,387 |
| Countries with the Most Species | 0 | - | 4.99 | 103,099 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,542 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,508 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,660 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,448 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,118 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,509 |
| Countries in the Alps | 0 | - | 4.87 | 117,964 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,573 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,728 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,549 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,461 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,316 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,835 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,474 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,343 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,079 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,707 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,568 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,421 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,075 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,355 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,369 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,551 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,182 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,693 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,831 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,211 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,687 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,113 |
| Largest Countries By Category | 0 | - | 4.97 | 157,936 |
| Countries by Countries | 0 | - | 4.97 | 63,018 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,514 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,350 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,063 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,265 |
| Island Countries | 0 | - | 4.99 | 710,421 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,957 |
| Northernmost Countries | 0 | - | 4.99 | 361,260 |
| Countries of South America | 0 | - | 5.00 | 925,158 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,113 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,106 |
| "Land" Countries | 0 | - | 4.98 | 336,512 |
| Countries that Start with A | 0 | - | 4.98 | 2,162,869 |
| Countries that Start with B | 0 | - | 4.95 | 2,294,559 |
| Countries that Start with C | 0 | - | 4.96 | 1,822,258 |
| Countries that Start with D | 0 | - | 4.96 | 709,743 |
| Countries that Start with E | 0 | - | 4.95 | 1,377,330 |
| Countries that Start with G | 0 | - | 4.97 | 1,503,474 |
| Countries that Start with H | 0 | - | 4.96 | 604,846 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,428 |
| Countries that Start with J | 0 | - | 4.98 | 602,533 |
| Countries that Start with K | 0 | - | 4.97 | 815,889 |
| Countries that Start with L | 0 | - | 4.98 | 1,090,854 |
| Countries that Start with N | 0 | - | 4.93 | 1,117,837 |
| Countries that Start with P | 0 | - | 4.94 | 1,216,233 |
| Countries that Start with S | 0 | - | 4.98 | 1,754,968 |
| Countries that Start with T | 0 | - | 4.90 | 1,009,936 |
| Countries that Start with U | 0 | - | 4.97 | 904,578 |
| Countries that Start with V | 0 | - | 4.98 | 609,410 |
| Countries that Start with F | 0 | - | 4.83 | 617,693 |
| Countries that Start with M | 0 | - | 4.97 | 1,381,809 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,450 |
| Orthodox Countries | 0 | - | 4.92 | 131,963 |
| Richest Island Countries | 0 | - | 4.85 | 100,551 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,878 |
| Monarchies of Europe | 0 | - | 4.90 | 98,165 |
| Monarchies of Asia | 0 | - | 4.97 | 71,095 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,849 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,896 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,415 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,428 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,727 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,423 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,462 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,589 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,310 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,549 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,760 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,194 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,786 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,871 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,551 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,016 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,083 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,378 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,481 |
| Countries with Megacities | 0 | - | 4.99 | 263,477 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,321 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,260 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,616 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,294 |
| Countries by Official Language | 0 | - | 4.95 | 194,949 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,968 |
| Countries in their Native Language | 0 | - | 4.99 | 198,469 |
| Independence from Whom | 0 | - | 4.99 | 211,729 |
| Subdivisions by Country | 0 | - | 4.86 | 50,363 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,997 |
| Megadiverse Countries | 0 | - | 4.96 | 134,889 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,813 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,264 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,848 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,061 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,919 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,486 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,230 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,942 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,568 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,045 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,355 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,798 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,096 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,873 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,194 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,138 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,918 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,200 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,795 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,103 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,833 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,798 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,735 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,867 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,176 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,356 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,445 |
| Widest Countries East to West | 0 | - | 4.92 | 129,511 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,417 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,179 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,066 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,643 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,419 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,710 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,312 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,765 |
| Countries with Double Letters | 0 | - | 4.97 | 95,441 |
| Countries that End in N | 0 | - | 4.95 | 170,480 |
| Countries with Five Letters | 0 | - | 4.96 | 281,452 |
| Countries with Six Letters | 0 | - | 4.94 | 212,889 |
| Countries with W | 0 | - | 4.97 | 159,781 |
| Countries with Z | 0 | - | 4.98 | 290,712 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,043 |
| Countries That End in U | 0 | - | 4.95 | 120,543 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,042 |
| Countries that End in O | 0 | - | 4.92 | 159,306 |
| Countries that End in R | 0 | - | 4.87 | 118,817 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,589 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,655 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,347 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,237 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,857 |
| Countries That End in Y | 0 | - | 4.91 | 185,739 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,552 |
