| Countries of the World Quiz | 0 | - | 5.00 | 47,387,413 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,707 |
| NATO Countries | 0 | - | 4.98 | 279,723 |
| EU Countries Quiz | 0 | - | 4.99 | 273,402 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,828 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 272,424 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,028 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,163 |
| Countries with NO Military | 0 | - | 4.97 | 62,085 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,464 |
| Landlocked Countries | 0 | - | 4.99 | 419,635 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,988 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,263 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,460 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,712 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,241 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,029 |
| Buddhist Countries | 0 | - | 4.96 | 144,205 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,166 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,363 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,761,400 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,280 |
| Himalayan Countries | 0 | - | 4.95 | 137,720 |
| Andean Countries | 0 | - | 4.95 | 84,076 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,319 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,845 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,949 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,432 |
| Danube Countries | 0 | - | 4.97 | 71,730 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,655 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,126 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,773 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,856 |
| European Landlocked Countries | 0 | - | 4.99 | 146,856 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,224 |
| Countries with the Most Species | 0 | - | 4.99 | 102,993 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,385 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,455 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,615 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,363 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,039 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,431 |
| Countries in the Alps | 0 | - | 4.87 | 117,805 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,210 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,518 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,464 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,203 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,182 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,771 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,367 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,257 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,016 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,621 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,521 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,367 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,986 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,254 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,273 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,328 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,111 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,619 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,642 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,692 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,416 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,035 |
| Largest Countries By Category | 0 | - | 4.97 | 157,772 |
| Countries by Countries | 0 | - | 4.96 | 62,917 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,398 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,595 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,799 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,627 |
| Island Countries | 0 | - | 4.99 | 710,054 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,825 |
| Northernmost Countries | 0 | - | 4.99 | 360,810 |
| Countries of South America | 0 | - | 5.00 | 923,914 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,485 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,868,824 |
| "Land" Countries | 0 | - | 4.98 | 335,965 |
| Countries that Start with A | 0 | - | 4.98 | 2,160,626 |
| Countries that Start with B | 0 | - | 4.95 | 2,292,414 |
| Countries that Start with C | 0 | - | 4.96 | 1,820,490 |
| Countries that Start with D | 0 | - | 4.96 | 708,517 |
| Countries that Start with E | 0 | - | 4.95 | 1,375,903 |
| Countries that Start with G | 0 | - | 4.97 | 1,501,783 |
| Countries that Start with H | 0 | - | 4.96 | 603,837 |
| Countries that Start with I | 0 | - | 4.92 | 1,287,042 |
| Countries that Start with J | 0 | - | 4.98 | 601,613 |
| Countries that Start with K | 0 | - | 4.97 | 814,947 |
| Countries that Start with L | 0 | - | 4.98 | 1,089,720 |
| Countries that Start with N | 0 | - | 4.93 | 1,116,693 |
| Countries that Start with P | 0 | - | 4.94 | 1,215,137 |
| Countries that Start with S | 0 | - | 4.98 | 1,753,406 |
| Countries that Start with T | 0 | - | 4.90 | 1,009,044 |
| Countries that Start with U | 0 | - | 4.97 | 903,869 |
| Countries that Start with V | 0 | - | 4.98 | 608,861 |
| Countries that Start with F | 0 | - | 4.83 | 616,892 |
| Countries that Start with M | 0 | - | 4.97 | 1,380,528 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,253 |
| Orthodox Countries | 0 | - | 4.92 | 131,444 |
| Richest Island Countries | 0 | - | 4.84 | 100,399 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,325 |
| Monarchies of Europe | 0 | - | 4.90 | 98,042 |
| Monarchies of Asia | 0 | - | 4.97 | 71,035 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,684 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,821 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,256 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,261 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,547 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,347 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,364 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,938 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,173 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,455 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,604 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,055 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,257 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,226 |
| Countries with Megacities | 0 | - | 4.99 | 262,241 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,068 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,106 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,371 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,141 |
| Countries by Official Language | 0 | - | 4.95 | 194,778 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,720 |
| Countries in their Native Language | 0 | - | 4.99 | 198,322 |
| Independence from Whom | 0 | - | 4.99 | 211,497 |
| Subdivisions by Country | 0 | - | 4.86 | 50,317 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,839 |
| Megadiverse Countries | 0 | - | 4.96 | 134,816 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,652 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,217 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,792 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,035 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,797 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,425 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,069 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,886 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,526 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,012 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,153 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,755 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,035 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,824 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,071 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,903 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,834 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,106 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,644 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,010 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,740 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,545 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,604 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,756 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,893 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,307 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,347 |
| Widest Countries East to West | 0 | - | 4.92 | 129,437 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,404 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,046 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,023 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,572 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,308 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,623 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,273 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,739 |
| Countries with Double Letters | 0 | - | 4.97 | 95,219 |
| Countries that End in N | 0 | - | 4.95 | 170,213 |
| Countries with Five Letters | 0 | - | 4.96 | 280,900 |
| Countries with Six Letters | 0 | - | 4.94 | 212,654 |
| Countries with W | 0 | - | 4.97 | 159,608 |
| Countries with Z | 0 | - | 4.98 | 290,227 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,852 |
| Countries That End in U | 0 | - | 4.95 | 120,454 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,871 |
| Countries that End in O | 0 | - | 4.92 | 159,242 |
| Countries that End in R | 0 | - | 4.87 | 118,762 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,539 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,460 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,211 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,149 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,743 |
| Countries That End in Y | 0 | - | 4.91 | 185,675 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,380 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,510 |
| Countries that End in I | 0 | - | 4.94 | 134,905 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,396 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,615 |
| Countries That End in NIA | 0 | - | 4.92 | 109,559 |
| Countries That End in BIA | 0 | - | 4.93 | 148,907 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,803 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,131 |
| Countries That End in RIA | 0 | - | 4.93 | 126,583 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,714 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,900 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,322 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,700 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,229 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,379 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,733 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,305 |
