| NATO Countries | 0 | - | 4.98 | 275,791 |
| EU Countries Quiz | 0 | - | 4.99 | 269,970 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,924,741 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,571 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,969 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,364 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,077 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,775 |
| Countries with NO Military | 0 | - | 4.97 | 61,182 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,912 |
| Landlocked Countries | 0 | - | 4.99 | 413,677 |
| OPEC Countries | 0 | - | 4.74 | 84,822 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,474 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,280 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,755 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,147 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,050 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,937 |
| Buddhist Countries | 0 | - | 4.96 | 142,962 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,893 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,105 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,346 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,613 |
| Himalayan Countries | 0 | - | 4.95 | 135,379 |
| Andean Countries | 0 | - | 4.94 | 82,831 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,223 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,223 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,911 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,615 |
| Danube Countries | 0 | - | 4.97 | 71,084 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,769 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,540 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,496 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,410 |
| European Landlocked Countries | 0 | - | 4.99 | 145,759 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,220 |
| Countries with the Most Species | 0 | - | 4.99 | 95,243 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,355 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,200 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,371 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,959 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,579 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,953 |
| Countries in the Alps | 0 | - | 4.86 | 116,829 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,574 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,265 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,015 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,427 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,171 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,007 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,583 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,760 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,312 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,064 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,197 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,046 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,454 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,753 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,757 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,075 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,651 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,255 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,774 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,328 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,684 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,606 |
| Largest Countries By Category | 0 | - | 4.97 | 156,767 |
| Countries by Countries | 0 | - | 4.96 | 62,260 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,774 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,045 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,137 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,877 |
| Island Countries | 0 | - | 4.99 | 707,646 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,518 |
| Northernmost Countries | 0 | - | 4.99 | 357,755 |
| Countries of South America | 0 | - | 5.00 | 914,873 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,589 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,552 |
| "Land" Countries | 0 | - | 4.98 | 333,667 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,991 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,991 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,426 |
| Countries that Start with D | 0 | - | 4.96 | 701,617 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,599 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,887 |
| Countries that Start with H | 0 | - | 4.96 | 598,023 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,333 |
| Countries that Start with J | 0 | - | 4.98 | 596,079 |
| Countries that Start with K | 0 | - | 4.97 | 809,456 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,944 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,806 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,620 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,606 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,269 |
| Countries that Start with U | 0 | - | 4.97 | 899,959 |
| Countries that Start with V | 0 | - | 4.98 | 605,134 |
| Countries that Start with F | 0 | - | 4.83 | 612,231 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,437 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,056 |
| Orthodox Countries | 0 | - | 4.91 | 130,399 |
| Richest Island Countries | 0 | - | 4.84 | 99,525 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,471 |
| Monarchies of Europe | 0 | - | 4.90 | 97,336 |
| Monarchies of Asia | 0 | - | 4.97 | 70,611 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,464 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,434 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,288 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,176 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,505 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,559 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,654 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,145 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,957 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,722 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,610 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,921 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,478 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,262 |
| Countries with Megacities | 0 | - | 4.99 | 246,976 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,152 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,993 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,569 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,892 |
| Countries by Official Language | 0 | - | 4.95 | 192,779 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,146 |
| Countries in their Native Language | 0 | - | 4.99 | 196,644 |
| Independence from Whom | 0 | - | 4.99 | 209,706 |
| Subdivisions by Country | 0 | - | 4.86 | 50,069 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,763 |
| Megadiverse Countries | 0 | - | 4.97 | 133,906 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,809 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,921 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,429 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,862 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,670 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,007 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,031 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,150 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,216 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,748 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,579 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,423 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,500 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,506 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,271 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,369 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,259 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,094 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,869 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,335 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,334 |
| Communist Countries in History | 0 | - | 4.63 | 492,559 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,362 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,996 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,956 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,785 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,859 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,066 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,280 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,951 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,338 |
| Widest Countries East to West | 0 | - | 4.92 | 128,609 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,218 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,221 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,570 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,692 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,638 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,048 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,051 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,585 |
| Countries with Double Letters | 0 | - | 4.97 | 93,398 |
| Countries that End in N | 0 | - | 4.94 | 156,888 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,696 |
| Countries with Six Letters | 0 | - | 4.93 | 210,375 |
| Countries with W | 0 | - | 4.97 | 158,234 |
| Countries with Z | 0 | - | 4.98 | 287,888 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,557 |
| Countries That End in U | 0 | - | 4.95 | 119,520 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,565 |
| Countries that End in O | 0 | - | 4.92 | 158,558 |
| Countries that End in R | 0 | - | 4.87 | 118,276 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,860 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,041 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,339 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,499 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,028 |
| Countries That End in Y | 0 | - | 4.90 | 185,207 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,382 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,694 |
| Countries that End in I | 0 | - | 4.94 | 134,417 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,205 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,197 |
| Countries That End in NIA | 0 | - | 4.92 | 109,012 |
| Countries That End in BIA | 0 | - | 4.92 | 147,721 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,068 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,488 |
| Countries That End in RIA | 0 | - | 4.93 | 126,084 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,013 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,203 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,527 |
