| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,426 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,450 |
| NATO Countries | 0 | - | 4.98 | 280,596 |
| EU Countries Quiz | 0 | - | 4.99 | 274,463 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,670 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,607 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,640 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,482,809 |
| Majority Muslim Countries | 0 | - | 4.98 | 374,563 |
| Landlocked Countries | 0 | - | 4.99 | 420,806 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,585 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,882 |
| Himalayan Countries | 0 | - | 4.95 | 138,206 |
| Andean Countries | 0 | - | 4.95 | 84,327 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,552 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,434 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,175 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,603 |
| Danube Countries | 0 | - | 4.97 | 71,863 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,836 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,267 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,036 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,498 |
| European Landlocked Countries | 0 | - | 4.99 | 147,004 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,417 |
| Countries with the Most Species | 0 | - | 4.99 | 103,125 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,568 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,523 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,459 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,135 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,529 |
| Countries in the Alps | 0 | - | 4.87 | 118,004 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,972 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,786 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,560 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,475 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,346 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,849 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,499 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,364 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,097 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,288 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,722 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,574 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,431 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,093 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,369 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,392 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,608 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,193 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,715 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,856 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,339 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,752 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,127 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,582 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,805 |
| Largest Countries By Category | 0 | - | 4.97 | 157,977 |
| Countries by Countries | 0 | - | 4.96 | 63,050 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,810 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,281 |
| Buddhist Countries | 0 | - | 4.96 | 144,394 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,542 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,535 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,620 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,521 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,135 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,435 |
| Island Countries | 0 | - | 4.99 | 710,547 |
| Countries in World War I | 0 | - | 4.88 | 228,209 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,085 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,263 |
| Northernmost Countries | 0 | - | 4.99 | 361,370 |
| Countries of South America | 0 | - | 5.00 | 925,470 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,551 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,819 |
| "Land" Countries | 0 | - | 4.98 | 336,837 |
| Countries with U.S. Troops | 0 | - | 4.38 | 132,115 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,495 |
| Orthodox Countries | 0 | - | 4.92 | 132,015 |
| Richest Island Countries | 0 | - | 4.85 | 100,582 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,484 |
| Monarchies of Europe | 0 | - | 4.90 | 98,182 |
| Monarchies of Asia | 0 | - | 4.97 | 71,113 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,181 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,885 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,909 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,448 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,460 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,763 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,434 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,484 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,727 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,341 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,575 |
| Countries that Start with A | 0 | - | 4.98 | 2,163,415 |
| Countries that Start with B | 0 | - | 4.95 | 2,295,080 |
| Countries that Start with C | 0 | - | 4.96 | 1,822,655 |
| Countries that Start with D | 0 | - | 4.96 | 710,046 |
| Countries that Start with E | 0 | - | 4.95 | 1,377,659 |
| Countries that Start with G | 0 | - | 4.97 | 1,503,837 |
| Countries that Start with H | 0 | - | 4.96 | 605,062 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,680 |
| Countries that Start with J | 0 | - | 4.98 | 602,735 |
| Countries that Start with K | 0 | - | 4.97 | 816,116 |
| Countries that Start with L | 0 | - | 4.98 | 1,091,105 |
| Countries that Start with N | 0 | - | 4.93 | 1,118,111 |
| Countries that Start with P | 0 | - | 4.94 | 1,216,492 |
| Countries that Start with S | 0 | - | 4.98 | 1,755,342 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,140 |
| Countries that Start with U | 0 | - | 4.97 | 904,746 |
| Countries that Start with V | 0 | - | 4.98 | 609,518 |
| Countries that Start with F | 0 | - | 4.83 | 617,863 |
| Countries that Start with M | 0 | - | 4.97 | 1,382,110 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,799 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,246 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,407 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,567 |
| Countries with Megacities | 0 | - | 4.99 | 263,655 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,400 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,297 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,677 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,336 |
| Countries by Official Language | 0 | - | 4.95 | 194,998 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,028 |
| Countries in their Native Language | 0 | - | 4.99 | 198,505 |
| Independence from Whom | 0 | - | 4.99 | 211,783 |
| Subdivisions by Country | 0 | - | 4.86 | 50,378 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,112 |
| Megadiverse Countries | 0 | - | 4.96 | 134,908 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,853 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,278 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,859 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,067 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,952 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,502 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,269 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,954 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,582 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,047 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,402 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,803 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,117 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,891 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,261 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,222 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,841 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,127 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,851 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,851 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,756 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,892 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,194 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,370 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,468 |
| Widest Countries East to West | 0 | - | 4.92 | 129,535 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,420 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,216 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,073 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,658 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,441 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,726 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,325 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,772 |
| Countries with Double Letters | 0 | - | 4.97 | 95,786 |
| Countries that End in N | 0 | - | 4.95 | 170,735 |
| Countries with Five Letters | 0 | - | 4.96 | 281,800 |
| Countries with Six Letters | 0 | - | 4.94 | 213,147 |
| Countries with W | 0 | - | 4.97 | 160,036 |
| Countries with Z | 0 | - | 4.98 | 290,992 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,376 |
| Countries That End in U | 0 | - | 4.95 | 120,675 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,169 |
| Countries that End in O | 0 | - | 4.92 | 159,396 |
| Countries that End in R | 0 | - | 4.87 | 118,865 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,636 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,774 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,435 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,296 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,949 |
| Countries That End in Y | 0 | - | 4.91 | 185,786 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,628 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,680 |
| Countries that End in I | 0 | - | 4.94 | 134,997 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,814 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,718 |
| Countries That End in NIA | 0 | - | 4.92 | 109,665 |
| Countries That End in BIA | 0 | - | 4.93 | 149,048 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,935 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,268 |
| Countries That End in RIA | 0 | - | 4.93 | 126,700 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,841 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,227 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,482 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,881 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,441 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,474 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,872 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,393 |
