| Majority Muslim Countries | 0 | - | 4.98 | 368,028 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,790 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,266 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,812 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,886 |
| Orthodox Countries | 0 | - | 4.91 | 130,259 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,162 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,484 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,856,844 |
| NATO Countries | 0 | - | 4.98 | 275,159 |
| EU Countries Quiz | 0 | - | 4.99 | 269,466 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,524 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,711 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,590 |
| Countries with NO Military | 0 | - | 4.97 | 61,069 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,839 |
| Landlocked Countries | 0 | - | 4.99 | 412,930 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,154 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,629 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,014 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,588 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,488 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,869 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,710,384 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,267 |
| Himalayan Countries | 0 | - | 4.95 | 135,072 |
| Andean Countries | 0 | - | 4.94 | 82,679 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,092 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,007 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,777 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,482 |
| Danube Countries | 0 | - | 4.97 | 71,009 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,647 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,464 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,302 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,223 |
| European Landlocked Countries | 0 | - | 4.99 | 145,675 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,062 |
| Countries with the Most Species | 0 | - | 4.99 | 95,193 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,213 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,178 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,334 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,913 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,518 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,873 |
| Countries in the Alps | 0 | - | 4.87 | 116,696 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,483 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,095 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,948 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,334 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,072 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,940 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,479 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,691 |
| Largest Country by Body of Water | 0 | - | 4.95 | 56,019 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,975 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,166 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,000 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,369 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,682 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,680 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,888 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,573 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,206 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,684 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,870 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,395 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,547 |
| Largest Countries By Category | 0 | - | 4.97 | 156,632 |
| Countries by Countries | 0 | - | 4.96 | 62,174 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,663 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,103 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,852 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,024 |
| Island Countries | 0 | - | 4.99 | 707,268 |
| Sharia Law Countries | 0 | - | 4.48 | 63,316 |
| Countries with the Most Cathedrals | 0 | - | 4.51 | 39,768 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,445 |
| Northernmost Countries | 0 | - | 4.99 | 357,284 |
| Countries of South America | 0 | - | 5.00 | 913,529 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,756 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,399 |
| "Land" Countries | 0 | - | 4.98 | 333,440 |
| Countries that Start with A | 0 | - | 4.98 | 2,144,795 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,131 |
| Countries that Start with C | 0 | - | 4.96 | 1,808,888 |
| Countries that Start with D | 0 | - | 4.96 | 700,586 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,384 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,548 |
| Countries that Start with H | 0 | - | 4.96 | 597,132 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,284 |
| Countries that Start with J | 0 | - | 4.98 | 595,200 |
| Countries that Start with K | 0 | - | 4.96 | 808,674 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,009 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,867 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,721 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,303 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,500 |
| Countries that Start with U | 0 | - | 4.97 | 899,225 |
| Countries that Start with V | 0 | - | 4.98 | 604,571 |
| Countries that Start with F | 0 | - | 4.83 | 611,517 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,352 |
| Richest Island Countries | 0 | - | 4.84 | 99,395 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,217 |
| Monarchies of Europe | 0 | - | 4.90 | 97,216 |
| Monarchies of Asia | 0 | - | 4.97 | 70,541 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,268 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,379 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,020 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,349 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,456 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,542 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,750 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,822 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,600 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,748 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,329 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,881 |
| Countries with Megacities | 0 | - | 4.99 | 246,233 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,799 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,744 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,267 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,680 |
| Countries by Official Language | 0 | - | 4.95 | 192,601 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,894 |
| Countries in their Native Language | 0 | - | 4.99 | 196,483 |
| Independence from Whom | 0 | - | 4.99 | 209,489 |
| Subdivisions by Country | 0 | - | 4.86 | 50,034 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,593 |
| Megadiverse Countries | 0 | - | 4.97 | 133,837 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,657 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,878 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,374 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,837 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,553 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,942 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,600 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,068 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,183 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,717 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,400 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,367 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,788 |
| Catholic Countries | 0 | - | 4.78 | 213,528 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,436 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,451 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,007 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,671 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,236 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,226 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,168 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,885 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,860 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,525 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,778 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,975 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,177 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,884 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,264 |
| Widest Countries East to West | 0 | - | 4.92 | 128,531 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,087 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,523 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,628 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,525 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,951 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,032 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,552 |
| Countries with Double Letters | 0 | - | 4.97 | 93,230 |
| Countries that End in N | 0 | - | 4.94 | 156,295 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,502 |
| Countries with Six Letters | 0 | - | 4.93 | 210,205 |
| Countries with W | 0 | - | 4.97 | 158,108 |
| Countries with Z | 0 | - | 4.98 | 287,487 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,436 |
| Countries That End in U | 0 | - | 4.95 | 119,449 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,358 |
| Countries that End in O | 0 | - | 4.92 | 158,481 |
| Countries that End in R | 0 | - | 4.86 | 118,211 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,813 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,874 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,191 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,387 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,574 |
| Countries That End in Y | 0 | - | 4.90 | 185,156 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,181 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,560 |
| Countries that End in I | 0 | - | 4.94 | 134,319 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,029 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,148 |
| Countries That End in NIA | 0 | - | 4.92 | 108,935 |
| Countries That End in BIA | 0 | - | 4.92 | 147,616 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 165,980 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,412 |
| Countries That End in RIA | 0 | - | 4.93 | 126,017 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,924 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 224,991 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,438 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,819 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,257 |
