| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,317 |
| Countries with NO Military | 0 | - | 4.97 | 61,337 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,500 |
| NATO Countries | 0 | - | 4.98 | 277,077 |
| EU Countries Quiz | 0 | - | 4.99 | 270,804 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,525 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,077 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,027 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,035,573 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,645 |
| Landlocked Countries | 0 | - | 4.99 | 415,094 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,728,729 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,184 |
| Himalayan Countries | 0 | - | 4.95 | 135,889 |
| Andean Countries | 0 | - | 4.94 | 83,122 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,449 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,560 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,149 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,801 |
| Danube Countries | 0 | - | 4.97 | 71,241 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,959 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,679 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,811 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,731 |
| European Landlocked Countries | 0 | - | 4.99 | 145,942 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,474 |
| Countries with the Most Species | 0 | - | 4.99 | 95,325 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,606 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,255 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,430 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,046 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,700 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,057 |
| Countries in the Alps | 0 | - | 4.86 | 117,082 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,732 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,541 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,141 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,562 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,346 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,124 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,760 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,879 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,665 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,855 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,191 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,262 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,128 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,597 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,858 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,873 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,405 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,776 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,341 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,985 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,125 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,117 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,710 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,880 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,281 |
| Largest Countries By Category | 0 | - | 4.97 | 156,985 |
| Countries by Countries | 0 | - | 4.96 | 62,417 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,719 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,155 |
| Buddhist Countries | 0 | - | 4.96 | 143,170 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,916 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,383 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,400 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,609 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,665 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,625 |
| Island Countries | 0 | - | 4.99 | 708,216 |
| Countries in World War I | 0 | - | 4.88 | 226,860 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,710 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,403 |
| Northernmost Countries | 0 | - | 4.99 | 358,570 |
| Countries of South America | 0 | - | 5.00 | 917,391 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,557 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,394 |
| "Land" Countries | 0 | - | 4.98 | 334,035 |
| Countries with U.S. Troops | 0 | - | 4.38 | 131,749 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,317 |
| Orthodox Countries | 0 | - | 4.91 | 130,619 |
| Richest Island Countries | 0 | - | 4.84 | 99,754 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,290 |
| Monarchies of Europe | 0 | - | 4.90 | 97,505 |
| Monarchies of Asia | 0 | - | 4.97 | 70,707 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,740 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,525 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,544 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,443 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,721 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,678 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,806 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 265,706 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 103,439 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,890 |
| Countries that Start with A | 0 | - | 4.98 | 2,150,324 |
| Countries that Start with B | 0 | - | 4.95 | 2,282,966 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,807 |
| Countries that Start with D | 0 | - | 4.96 | 703,272 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,550 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,991 |
| Countries that Start with H | 0 | - | 4.96 | 599,357 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,954 |
| Countries that Start with J | 0 | - | 4.98 | 597,423 |
| Countries that Start with K | 0 | - | 4.97 | 810,678 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,495 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,417 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,087 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,765 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,406 |
| Countries that Start with U | 0 | - | 4.97 | 900,881 |
| Countries that Start with V | 0 | - | 4.98 | 605,976 |
| Countries that Start with F | 0 | - | 4.83 | 613,378 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,121 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,838 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,200 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,685 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,839 |
| Countries with Megacities | 0 | - | 4.99 | 248,043 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,711 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,307 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,094 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,261 |
| Countries by Official Language | 0 | - | 4.95 | 193,106 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,603 |
| Countries in their Native Language | 0 | - | 4.99 | 196,952 |
| Independence from Whom | 0 | - | 4.99 | 210,085 |
| Subdivisions by Country | 0 | - | 4.86 | 50,130 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,024 |
| Megadiverse Countries | 0 | - | 4.97 | 134,220 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,111 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,001 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,523 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,898 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,852 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,109 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,293 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,385 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,283 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,778 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,865 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,500 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,604 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,574 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,780 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,546 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,730 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,483 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,210 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,237 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,084 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,290 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,476 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,059 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,508 |
| Widest Countries East to West | 0 | - | 4.92 | 129,005 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,281 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,452 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,640 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,844 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,795 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,205 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,384 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,634 |
| Countries with Double Letters | 0 | - | 4.96 | 93,653 |
| Countries that End in N | 0 | - | 4.94 | 157,111 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,988 |
| Countries with Six Letters | 0 | - | 4.93 | 210,649 |
| Countries with W | 0 | - | 4.97 | 158,405 |
| Countries with Z | 0 | - | 4.98 | 288,201 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,740 |
| Countries That End in U | 0 | - | 4.95 | 119,600 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,846 |
| Countries that End in O | 0 | - | 4.92 | 158,640 |
| Countries that End in R | 0 | - | 4.87 | 118,362 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,924 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,381 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,520 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,630 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,179 |
| Countries That End in Y | 0 | - | 4.90 | 185,278 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,593 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,881 |
| Countries that End in I | 0 | - | 4.94 | 134,527 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,436 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,286 |
| Countries That End in NIA | 0 | - | 4.92 | 109,109 |
| Countries That End in BIA | 0 | - | 4.92 | 147,842 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,235 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,622 |
| Countries That End in RIA | 0 | - | 4.93 | 126,189 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,163 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,659 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,654 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,011 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,558 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,016 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,269 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,777 |
