| NATO Countries | 0 | - | 4.98 | 276,771 |
| EU Countries Quiz | 0 | - | 4.99 | 270,536 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,003,839 |
| Majority Muslim Countries | 0 | - | 4.98 | 369,915 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,431 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,019 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,372 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,981 |
| Countries with NO Military | 0 | - | 4.97 | 61,289 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,992 |
| Landlocked Countries | 0 | - | 4.99 | 414,642 |
| OPEC Countries | 0 | - | 4.74 | 84,847 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,718 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,426 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,835 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,240 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,068 |
| Buddhist Countries | 0 | - | 4.96 | 143,104 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,207 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,296 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,196 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,019 |
| Himalayan Countries | 0 | - | 4.95 | 135,719 |
| Andean Countries | 0 | - | 4.94 | 83,033 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,382 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,453 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,081 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,744 |
| Danube Countries | 0 | - | 4.97 | 71,186 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,907 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,645 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,719 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,618 |
| European Landlocked Countries | 0 | - | 4.99 | 145,881 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,374 |
| Countries with the Most Species | 0 | - | 4.99 | 95,302 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,543 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,239 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,407 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,021 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,659 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,028 |
| Countries in the Alps | 0 | - | 4.86 | 116,991 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,687 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,463 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,112 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,514 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,301 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,095 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,703 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,845 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,605 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,157 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,236 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,103 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,544 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,829 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,833 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,305 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,742 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,313 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,954 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,881 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,008 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,686 |
| Largest Countries By Category | 0 | - | 4.97 | 156,915 |
| Countries by Countries | 0 | - | 4.96 | 62,371 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,864 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,235 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,501 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,375 |
| Island Countries | 0 | - | 4.99 | 708,031 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,868 |
| Northernmost Countries | 0 | - | 4.99 | 358,295 |
| Countries of South America | 0 | - | 5.00 | 916,655 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,685 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,935 |
| "Land" Countries | 0 | - | 4.98 | 333,922 |
| Countries that Start with A | 0 | - | 4.98 | 2,149,346 |
| Countries that Start with B | 0 | - | 4.95 | 2,282,058 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,116 |
| Countries that Start with D | 0 | - | 4.96 | 702,768 |
| Countries that Start with E | 0 | - | 4.95 | 1,368,984 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,373 |
| Countries that Start with H | 0 | - | 4.96 | 598,929 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,468 |
| Countries that Start with J | 0 | - | 4.98 | 596,987 |
| Countries that Start with K | 0 | - | 4.97 | 810,315 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,035 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,928 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,644 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,135 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,048 |
| Countries that Start with U | 0 | - | 4.97 | 900,612 |
| Countries that Start with V | 0 | - | 4.98 | 605,717 |
| Countries that Start with F | 0 | - | 4.83 | 613,014 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,618 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,228 |
| Orthodox Countries | 0 | - | 4.91 | 130,552 |
| Richest Island Countries | 0 | - | 4.84 | 99,662 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,207 |
| Monarchies of Europe | 0 | - | 4.90 | 97,465 |
| Monarchies of Asia | 0 | - | 4.97 | 70,677 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,653 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,495 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,465 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,332 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,637 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,616 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,755 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,547 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 103,110 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,825 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,759 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,119 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,619 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,713 |
| Countries with Megacities | 0 | - | 4.99 | 247,780 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,570 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,240 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,965 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,189 |
| Countries by Official Language | 0 | - | 4.95 | 192,988 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,440 |
| Countries in their Native Language | 0 | - | 4.99 | 196,848 |
| Independence from Whom | 0 | - | 4.99 | 209,961 |
| Subdivisions by Country | 0 | - | 4.86 | 50,115 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,935 |
| Megadiverse Countries | 0 | - | 4.97 | 133,983 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,015 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,970 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,482 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,889 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,791 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,076 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,221 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,247 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,267 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,768 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,770 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,467 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,568 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,558 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,177 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,059 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,419 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,449 |
| Communist Countries in History | 0 | - | 4.63 | 493,022 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,618 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,391 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,131 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,108 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,031 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,218 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,418 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,023 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,465 |
| Widest Countries East to West | 0 | - | 4.92 | 128,958 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,261 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,369 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,617 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,792 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,728 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,158 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 74,447 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,626 |
| Countries with Double Letters | 0 | - | 4.97 | 93,586 |
| Countries that End in N | 0 | - | 4.94 | 157,064 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,906 |
| Countries with Six Letters | 0 | - | 4.93 | 210,572 |
| Countries with W | 0 | - | 4.97 | 158,360 |
| Countries with Z | 0 | - | 4.98 | 288,102 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,685 |
| Countries That End in U | 0 | - | 4.95 | 119,588 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,782 |
| Countries that End in O | 0 | - | 4.92 | 158,617 |
| Countries that End in R | 0 | - | 4.87 | 118,339 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,908 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,307 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,471 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,593 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,138 |
| Countries That End in Y | 0 | - | 4.90 | 185,260 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,531 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,825 |
| Countries that End in I | 0 | - | 4.94 | 134,501 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,364 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,260 |
| Countries That End in NIA | 0 | - | 4.92 | 109,080 |
| Countries That End in BIA | 0 | - | 4.92 | 147,806 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,188 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,588 |
| Countries That End in RIA | 0 | - | 4.93 | 126,158 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,121 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,559 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,619 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,981 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,479 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,985 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,220 |
