| NATO Countries | 0 | - | 4.98 | 279,206 |
| EU Countries Quiz | 0 | - | 4.99 | 272,831 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,318,972 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,110 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,390 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,824 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,696 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,960 |
| Countries with NO Military | 0 | - | 4.97 | 61,938 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,759 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,385 |
| Landlocked Countries | 0 | - | 4.99 | 418,697 |
| All OPEC Countries Ever | 0 | - | 4.77 | 90,678 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,766 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,111 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,344 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,644 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,856 |
| Buddhist Countries | 0 | - | 4.96 | 143,706 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,597 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,163 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,755,427 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,883 |
| Himalayan Countries | 0 | - | 4.94 | 137,319 |
| Andean Countries | 0 | - | 4.95 | 83,875 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,163 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,570 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,794 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,315 |
| Danube Countries | 0 | - | 4.97 | 71,625 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,511 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,030 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,597 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,674 |
| European Landlocked Countries | 0 | - | 4.99 | 146,741 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,097 |
| Countries with the Most Species | 0 | - | 4.99 | 102,884 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,232 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,425 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,579 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,286 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,965 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,344 |
| Countries in the Alps | 0 | - | 4.87 | 117,643 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,107 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,320 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,392 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,958 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,061 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,428 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,249 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,162 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,949 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,529 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,462 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,325 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,904 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,174 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,189 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,137 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,046 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,558 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,489 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,264 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,170 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,981 |
| Largest Countries By Category | 0 | - | 4.97 | 157,596 |
| Countries by Countries | 0 | - | 4.96 | 62,817 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,300 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,776 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,542 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,976 |
| Island Countries | 0 | - | 4.99 | 709,650 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,814 |
| Northernmost Countries | 0 | - | 4.99 | 360,373 |
| Countries of South America | 0 | - | 5.00 | 922,607 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,643 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,865,688 |
| "Land" Countries | 0 | - | 4.98 | 335,744 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,618 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,627 |
| Countries that Start with C | 0 | - | 4.96 | 1,818,956 |
| Countries that Start with D | 0 | - | 4.96 | 707,459 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,658 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,312 |
| Countries that Start with H | 0 | - | 4.96 | 602,940 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,009 |
| Countries that Start with J | 0 | - | 4.98 | 600,790 |
| Countries that Start with K | 0 | - | 4.97 | 813,874 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,730 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,681 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,188 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,223 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,380 |
| Countries that Start with U | 0 | - | 4.97 | 903,274 |
| Countries that Start with V | 0 | - | 4.98 | 608,334 |
| Countries that Start with F | 0 | - | 4.83 | 616,196 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,458 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,053 |
| Orthodox Countries | 0 | - | 4.92 | 131,283 |
| Richest Island Countries | 0 | - | 4.84 | 100,293 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,209 |
| Monarchies of Europe | 0 | - | 4.90 | 97,944 |
| Monarchies of Asia | 0 | - | 4.97 | 70,973 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,507 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,773 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,125 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,081 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,394 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,270 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,257 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,244 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,020 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,345 |
| The Only African Country ... | 0 | - | 4.98 | 128,918 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,057 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,439 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,877 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,153 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,950 |
| Countries with Megacities | 0 | - | 4.99 | 258,156 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,823 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,947 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,105 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,957 |
| Countries by Official Language | 0 | - | 4.95 | 194,601 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,473 |
| Countries in their Native Language | 0 | - | 4.99 | 198,144 |
| Independence from Whom | 0 | - | 4.99 | 211,254 |
| Subdivisions by Country | 0 | - | 4.86 | 50,276 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,656 |
| Megadiverse Countries | 0 | - | 4.96 | 134,751 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,518 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,173 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,736 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,007 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,681 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,361 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,942 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,829 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,470 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,979 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,903 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,701 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,975 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,759 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,905 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,731 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,012 |
| Communist Countries in History | 0 | - | 4.63 | 494,881 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,462 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,904 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,616 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,280 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,495 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,654 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,809 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,248 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,265 |
| Widest Countries East to West | 0 | - | 4.92 | 129,347 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,377 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,934 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,985 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,499 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,192 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,524 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,224 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,724 |
| Countries with Double Letters | 0 | - | 4.97 | 95,053 |
| Countries that End in N | 0 | - | 4.95 | 169,913 |
| Countries with Five Letters | 0 | - | 4.96 | 279,925 |
| Countries with Six Letters | 0 | - | 4.94 | 212,432 |
| Countries with W | 0 | - | 4.97 | 159,497 |
| Countries with Z | 0 | - | 4.98 | 289,757 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,699 |
| Countries That End in U | 0 | - | 4.95 | 120,398 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,723 |
| Countries that End in O | 0 | - | 4.92 | 159,182 |
| Countries that End in R | 0 | - | 4.87 | 118,727 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,501 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,284 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,079 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,065 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,653 |
| Countries That End in Y | 0 | - | 4.90 | 185,639 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,195 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,396 |
| Countries that End in I | 0 | - | 4.94 | 134,852 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,045 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,565 |
| Countries That End in NIA | 0 | - | 4.92 | 109,499 |
| Countries That End in BIA | 0 | - | 4.93 | 148,824 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,687 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,028 |
| Countries That End in RIA | 0 | - | 4.93 | 126,518 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,604 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,632 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,194 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,538 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,088 |
