| NATO Countries | 0 | - | 4.98 | 278,410 |
| EU Countries Quiz | 0 | - | 4.99 | 271,986 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,187 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,570 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,204,081 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,213 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,643 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,753 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,217 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,587 |
| Countries with NO Military | 0 | - | 4.97 | 61,713 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,249 |
| Landlocked Countries | 0 | - | 4.99 | 417,172 |
| All OPEC Countries Ever | 0 | - | 4.74 | 89,519 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,418 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,870 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,177 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,498 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,600 |
| Buddhist Countries | 0 | - | 4.96 | 143,479 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,115 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,866 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,744,528 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,395 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,859 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,428 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,183 |
| Himalayan Countries | 0 | - | 4.95 | 136,736 |
| Andean Countries | 0 | - | 4.95 | 83,589 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,849 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,138 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,507 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,113 |
| Danube Countries | 0 | - | 4.97 | 71,479 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,291 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,890 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,280 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,268 |
| European Landlocked Countries | 0 | - | 4.99 | 146,181 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,855 |
| Countries with the Most Species | 0 | - | 4.99 | 102,320 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,989 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,352 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,533 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,201 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,846 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,227 |
| Countries in the Alps | 0 | - | 4.86 | 117,412 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,954 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,022 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,295 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,795 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,892 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,313 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,059 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,032 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,854 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,389 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,389 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,230 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,780 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,039 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,049 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,824 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,932 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,462 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,295 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,302 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,724 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,868 |
| Largest Countries By Category | 0 | - | 4.97 | 157,347 |
| Countries by Countries | 0 | - | 4.96 | 62,653 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,137 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,434 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,049 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,150 |
| Island Countries | 0 | - | 4.99 | 709,050 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,978 |
| Northernmost Countries | 0 | - | 4.99 | 359,658 |
| Countries of South America | 0 | - | 5.00 | 920,416 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,926 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,502 |
| "Land" Countries | 0 | - | 4.98 | 335,045 |
| Countries that Start with A | 0 | - | 4.98 | 2,155,185 |
| Countries that Start with B | 0 | - | 4.95 | 2,287,328 |
| Countries that Start with C | 0 | - | 4.96 | 1,816,318 |
| Countries that Start with D | 0 | - | 4.96 | 705,635 |
| Countries that Start with E | 0 | - | 4.95 | 1,372,457 |
| Countries that Start with G | 0 | - | 4.97 | 1,497,999 |
| Countries that Start with H | 0 | - | 4.96 | 601,368 |
| Countries that Start with I | 0 | - | 4.92 | 1,284,240 |
| Countries that Start with J | 0 | - | 4.98 | 599,341 |
| Countries that Start with K | 0 | - | 4.97 | 812,495 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,704 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,728 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,513 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,820 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,098 |
| Countries that Start with U | 0 | - | 4.97 | 902,271 |
| Countries that Start with V | 0 | - | 4.98 | 607,431 |
| Countries that Start with F | 0 | - | 4.83 | 614,988 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,607 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,746 |
| Orthodox Countries | 0 | - | 4.92 | 131,031 |
| Richest Island Countries | 0 | - | 4.84 | 100,042 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,769 |
| Monarchies of Europe | 0 | - | 4.90 | 97,758 |
| Monarchies of Asia | 0 | - | 4.97 | 70,869 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,212 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,672 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,885 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,812 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,128 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,867 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,038 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 269,011 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 103,774 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,146 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,733 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,969 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,459 |
| Countries with Megacities | 0 | - | 4.99 | 249,358 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,313 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,648 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,634 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,622 |
| Countries by Official Language | 0 | - | 4.95 | 194,199 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,002 |
| Countries in their Native Language | 0 | - | 4.99 | 197,799 |
| Independence from Whom | 0 | - | 4.99 | 210,944 |
| Subdivisions by Country | 0 | - | 4.86 | 50,219 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,432 |
| Megadiverse Countries | 0 | - | 4.96 | 134,593 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,966 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,103 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,657 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,960 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,508 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,265 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,683 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,587 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,399 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,818 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,444 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,608 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,708 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,677 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,516 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,490 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,611 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,758 |
| Communist Countries in History | 0 | - | 4.63 | 494,150 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,154 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,728 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,460 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,850 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,331 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,512 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,676 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,173 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,984 |
| Widest Countries East to West | 0 | - | 4.92 | 129,209 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,339 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,720 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,944 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,989 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,034 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,408 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,144 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,687 |
| Countries with Double Letters | 0 | - | 4.96 | 94,445 |
| Countries that End in N | 0 | - | 4.95 | 168,351 |
| Countries with Five Letters | 0 | - | 4.96 | 269,445 |
| Countries with Six Letters | 0 | - | 4.93 | 211,638 |
| Countries with W | 0 | - | 4.97 | 159,061 |
| Countries with Z | 0 | - | 4.98 | 289,128 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,264 |
| Countries That End in U | 0 | - | 4.95 | 120,119 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,313 |
| Countries that End in O | 0 | - | 4.92 | 158,983 |
| Countries that End in R | 0 | - | 4.87 | 118,578 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,368 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,901 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,842 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,889 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,472 |
| Countries That End in Y | 0 | - | 4.90 | 185,497 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,947 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,178 |
| Countries that End in I | 0 | - | 4.94 | 134,717 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,775 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,452 |
| Countries That End in NIA | 0 | - | 4.92 | 109,342 |
| Countries That End in BIA | 0 | - | 4.93 | 148,639 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,495 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,835 |
| Countries That End in RIA | 0 | - | 4.93 | 126,389 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,410 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,213 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,946 |
