| Countries with the Most Military Troops | 0 | - | 4.95 | 288,291 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,092 |
| Countries with NO Military | 0 | - | 4.97 | 62,274 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,381 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,448,080 |
| Majority Muslim Countries | 0 | - | 4.98 | 374,223 |
| NATO Countries | 0 | - | 4.98 | 280,314 |
| EU Countries Quiz | 0 | - | 4.99 | 274,146 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,381 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 148,444 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,590 |
| Landlocked Countries | 0 | - | 4.99 | 420,338 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,168 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,542 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,781 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,611 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,189 |
| Buddhist Countries | 0 | - | 4.96 | 144,321 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,396 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,539 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,766,644 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,637 |
| Himalayan Countries | 0 | - | 4.95 | 138,038 |
| Andean Countries | 0 | - | 4.95 | 84,233 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,459 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,281 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,097 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,539 |
| Countries in World War I | 0 | - | 4.88 | 228,126 |
| Danube Countries | 0 | - | 4.97 | 71,813 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,759 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,205 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,937 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,388 |
| European Landlocked Countries | 0 | - | 4.99 | 146,948 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,351 |
| Countries with the Most Species | 0 | - | 4.99 | 103,074 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,008 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,511 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,494 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,652 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,432 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,112 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,497 |
| Countries in the Alps | 0 | - | 4.87 | 117,942 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,102 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,671 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,539 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,434 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,285 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,826 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,455 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,325 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,067 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,694 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,560 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,415 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,057 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,338 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,351 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,493 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,165 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,678 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,787 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,099 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,626 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,093 |
| Largest Countries By Category | 0 | - | 4.97 | 157,902 |
| Countries by Countries | 0 | - | 4.97 | 63,001 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,493 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,177 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,003 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,152 |
| Island Countries | 0 | - | 4.99 | 710,329 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,696 |
| Northernmost Countries | 0 | - | 4.99 | 361,171 |
| Countries of South America | 0 | - | 5.00 | 924,904 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,789 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,871,451 |
| "Land" Countries | 0 | - | 4.98 | 336,165 |
| Countries that Start with A | 0 | - | 4.98 | 2,162,380 |
| Countries that Start with B | 0 | - | 4.95 | 2,294,083 |
| Countries that Start with C | 0 | - | 4.96 | 1,821,852 |
| Countries that Start with D | 0 | - | 4.96 | 709,452 |
| Countries that Start with E | 0 | - | 4.95 | 1,377,008 |
| Countries that Start with G | 0 | - | 4.97 | 1,503,110 |
| Countries that Start with H | 0 | - | 4.96 | 604,650 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,187 |
| Countries that Start with J | 0 | - | 4.98 | 602,341 |
| Countries that Start with K | 0 | - | 4.97 | 815,692 |
| Countries that Start with L | 0 | - | 4.98 | 1,090,604 |
| Countries that Start with N | 0 | - | 4.93 | 1,117,574 |
| Countries that Start with P | 0 | - | 4.94 | 1,215,979 |
| Countries that Start with S | 0 | - | 4.98 | 1,754,622 |
| Countries that Start with T | 0 | - | 4.90 | 1,009,740 |
| Countries that Start with U | 0 | - | 4.97 | 904,421 |
| Countries that Start with V | 0 | - | 4.98 | 609,300 |
| Countries that Start with F | 0 | - | 4.83 | 617,525 |
| Countries that Start with M | 0 | - | 4.97 | 1,381,531 |
| Countries with U.S. Troops | 0 | - | 4.38 | 132,093 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,399 |
| Orthodox Countries | 0 | - | 4.92 | 131,920 |
| Richest Island Countries | 0 | - | 4.85 | 100,525 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,294 |
| Monarchies of Europe | 0 | - | 4.90 | 98,139 |
| Monarchies of Asia | 0 | - | 4.97 | 71,084 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,808 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,883 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,369 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,393 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,694 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,402 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,434 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,437 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,288 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,528 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,714 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,168 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,354 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,435 |
| Countries with Megacities | 0 | - | 4.99 | 263,266 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,267 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,229 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,569 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,265 |
| Countries by Official Language | 0 | - | 4.95 | 194,910 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,920 |
| Countries in their Native Language | 0 | - | 4.99 | 198,436 |
| Independence from Whom | 0 | - | 4.99 | 211,682 |
| Subdivisions by Country | 0 | - | 4.86 | 50,354 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,955 |
| Megadiverse Countries | 0 | - | 4.96 | 134,869 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,768 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,252 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,840 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,058 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,897 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,470 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,196 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,929 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,556 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,035 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,323 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,787 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,087 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,860 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,169 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,104 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,907 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,178 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,763 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,080 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,820 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,744 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,697 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,835 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,963 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,347 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,422 |
| Widest Countries East to West | 0 | - | 4.92 | 129,491 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,415 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,150 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,056 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,632 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,401 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,694 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,307 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,759 |
| Countries with Double Letters | 0 | - | 4.97 | 95,372 |
| Countries that End in N | 0 | - | 4.95 | 170,404 |
| Countries with Five Letters | 0 | - | 4.96 | 281,323 |
| Countries with Six Letters | 0 | - | 4.94 | 212,819 |
| Countries with W | 0 | - | 4.97 | 159,716 |
| Countries with Z | 0 | - | 4.98 | 290,623 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,980 |
| Countries That End in U | 0 | - | 4.95 | 120,519 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,996 |
| Countries that End in O | 0 | - | 4.92 | 159,288 |
| Countries that End in R | 0 | - | 4.87 | 118,806 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,573 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,600 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,325 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,220 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,830 |
| Countries That End in Y | 0 | - | 4.91 | 185,723 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,531 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,603 |
| Countries that End in I | 0 | - | 4.94 | 134,952 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,721 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,668 |
| Countries That End in NIA | 0 | - | 4.92 | 109,627 |
| Countries That End in BIA | 0 | - | 4.93 | 148,979 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,881 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,205 |
| Countries That End in RIA | 0 | - | 4.93 | 126,644 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,774 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,086 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,409 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,799 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,337 |
