| Independence from Whom | 0 | - | 4.99 | 210,092 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,029 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,110 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,298 |
| Battle to Country | 0 | - | 4.91 | 52,672 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,038,296 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,670 |
| NATO Countries | 0 | - | 4.98 | 277,098 |
| EU Countries Quiz | 0 | - | 4.99 | 270,816 |
| Recently Independent Countries | 0 | - | 4.98 | 158,179 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,656 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,338 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,530 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,078 |
| Countries with NO Military | 0 | - | 4.97 | 61,341 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,815 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,601 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,348 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,028 |
| Countries by Former Name | 0 | - | 4.99 | 124,491 |
| Historical City to Country | 0 | - | 4.84 | 78,222 |
| Landlocked Countries | 0 | - | 4.99 | 415,125 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,546 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,510 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,420 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,782 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,683 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,935 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,389 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,981 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,864 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,511 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,883 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,286 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,736 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,319 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,170 |
| Buddhist Countries | 0 | - | 4.96 | 143,175 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,932 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,399 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,408 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,728,986 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,198 |
| Himalayan Countries | 0 | - | 4.95 | 135,896 |
| Andean Countries | 0 | - | 4.94 | 83,132 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,456 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,567 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,156 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,809 |
| Countries in World War I | 0 | - | 4.88 | 226,867 |
| Danube Countries | 0 | - | 4.97 | 71,244 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,968 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,683 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,818 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,741 |
| European Landlocked Countries | 0 | - | 4.99 | 145,944 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,481 |
| Countries with the Most Species | 0 | - | 4.99 | 95,327 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,714 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,613 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,259 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,435 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,050 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,702 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,060 |
| Countries in the Alps | 0 | - | 4.86 | 117,088 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,733 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,549 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,145 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,564 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,357 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,127 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,767 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,884 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,667 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,196 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,264 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,131 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,599 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,862 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,875 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,416 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,783 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,342 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,991 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,149 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,131 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,711 |
| Largest Countries By Category | 0 | - | 4.97 | 156,990 |
| Countries by Countries | 0 | - | 4.96 | 62,419 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,014 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,918 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,634 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,683 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,650 |
| Island Countries | 0 | - | 4.99 | 708,240 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,440 |
| Northernmost Countries | 0 | - | 4.99 | 358,589 |
| Countries of South America | 0 | - | 5.00 | 917,459 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,618 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,529 |
| "Land" Countries | 0 | - | 4.98 | 334,045 |
| Countries that Start with A | 0 | - | 4.98 | 2,150,416 |
| Countries that Start with B | 0 | - | 4.95 | 2,283,056 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,870 |
| Countries that Start with D | 0 | - | 4.96 | 703,309 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,604 |
| Countries that Start with G | 0 | - | 4.97 | 1,495,048 |
| Countries that Start with H | 0 | - | 4.96 | 599,393 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,990 |
| Countries that Start with J | 0 | - | 4.98 | 597,456 |
| Countries that Start with K | 0 | - | 4.97 | 810,705 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,536 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,462 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,126 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,811 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,435 |
| Countries that Start with U | 0 | - | 4.97 | 900,909 |
| Countries that Start with V | 0 | - | 4.98 | 606,005 |
| Countries that Start with F | 0 | - | 4.83 | 613,411 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,166 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,766 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,325 |
| Orthodox Countries | 0 | - | 4.91 | 130,622 |
| Richest Island Countries | 0 | - | 4.84 | 99,763 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,381 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,258 |
| Monarchies of Europe | 0 | - | 4.90 | 97,512 |
| Monarchies of Asia | 0 | - | 4.97 | 70,708 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,078 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,264 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,742 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,750 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,526 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,554 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,452 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,729 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,683 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,806 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 265,855 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 103,452 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,894 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,845 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,208 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,690 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,725 |
| Countries by Independence Day | 0 | - | 4.56 | 52,640 |
| Former Countries by Capital | 0 | - | 4.45 | 127,159 |
| Former Countries | 0 | - | 4.75 | 132,847 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,846 |
| Countries with Megacities | 0 | - | 4.99 | 248,056 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,718 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,310 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,103 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,266 |
| Countries by Official Language | 0 | - | 4.95 | 193,114 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,619 |
| Countries in their Native Language | 0 | - | 4.99 | 196,960 |
| Subdivisions by Country | 0 | - | 4.86 | 50,134 |
| Megadiverse Countries | 0 | - | 4.97 | 134,252 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,122 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,002 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,527 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,900 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,857 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,214 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,397 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,286 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,780 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,873 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,502 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,606 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,575 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,781 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,113 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,247 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,149 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,054 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,449 |
| World Map Quiz | 0 | - | 4.81 | 63,755 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,552 |
| Communist Countries in History | 0 | - | 4.63 | 493,239 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,738 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,490 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,214 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,246 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,086 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,292 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,479 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,062 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,509 |
| Widest Countries East to West | 0 | - | 4.92 | 129,009 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,281 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,456 |
| 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 | 93,849 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,800 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,209 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,435 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,636 |
