| Countries of the World Quiz | 0 | - | 5.00 | 46,852,205 |
| Majority Muslim Countries | 0 | - | 4.98 | 367,999 |
| NATO Countries | 0 | - | 4.98 | 275,112 |
| EU Countries Quiz | 0 | - | 4.99 | 269,428 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,485 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,661 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,766 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,576 |
| Countries with NO Military | 0 | - | 4.97 | 61,061 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,833 |
| Countries with the Top Chess Players | 0 | - | 4.53 | 75,099 |
| Landlocked Countries | 0 | - | 4.99 | 412,887 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,250 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,143 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,610 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 73,995 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,541 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,799 |
| Buddhist Countries | 0 | - | 4.96 | 142,821 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,444 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,836 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,868 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,235 |
| Himalayan Countries | 0 | - | 4.95 | 135,056 |
| Andean Countries | 0 | - | 4.94 | 82,665 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,082 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,995 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,761 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,466 |
| Danube Countries | 0 | - | 4.97 | 71,002 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,636 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,456 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,292 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,197 |
| European Landlocked Countries | 0 | - | 4.99 | 145,668 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,053 |
| Countries with the Most Species | 0 | - | 4.99 | 95,187 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,195 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,174 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,334 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,908 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,511 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,868 |
| Countries in the Alps | 0 | - | 4.87 | 116,683 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,471 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,083 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,942 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,326 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,069 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,938 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,473 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,683 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,609 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,970 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,166 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,998 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,364 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,672 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,676 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,863 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,569 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,200 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,668 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,838 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,375 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,542 |
| Largest Countries By Category | 0 | - | 4.97 | 156,617 |
| Countries by Countries | 0 | - | 4.96 | 62,168 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,653 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,022 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,833 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,000 |
| Island Countries | 0 | - | 4.99 | 707,240 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,351 |
| Northernmost Countries | 0 | - | 4.99 | 357,252 |
| Countries of South America | 0 | - | 5.00 | 913,395 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,632 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,202 |
| "Land" Countries | 0 | - | 4.98 | 333,415 |
| Countries that Start with A | 0 | - | 4.98 | 2,144,646 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,016 |
| Countries that Start with C | 0 | - | 4.96 | 1,808,762 |
| Countries that Start with D | 0 | - | 4.96 | 700,505 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,281 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,452 |
| Countries that Start with H | 0 | - | 4.96 | 597,059 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,192 |
| Countries that Start with J | 0 | - | 4.98 | 595,125 |
| Countries that Start with K | 0 | - | 4.96 | 808,611 |
| Countries that Start with L | 0 | - | 4.98 | 1,081,927 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,777 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,616 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,192 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,426 |
| Countries that Start with U | 0 | - | 4.97 | 899,091 |
| Countries that Start with V | 0 | - | 4.98 | 604,514 |
| Countries that Start with F | 0 | - | 4.83 | 611,465 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,242 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,876 |
| Orthodox Countries | 0 | - | 4.91 | 130,251 |
| Richest Island Countries | 0 | - | 4.84 | 99,371 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,057 |
| Monarchies of Europe | 0 | - | 4.90 | 97,206 |
| Monarchies of Asia | 0 | - | 4.97 | 70,538 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,250 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,258 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,377 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,152 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,002 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,323 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,445 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,536 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,704 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,804 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,590 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,470 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,729 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,321 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,859 |
| Countries with Megacities | 0 | - | 4.99 | 246,188 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,780 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,733 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,248 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,670 |
| Countries by Official Language | 0 | - | 4.95 | 192,586 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,869 |
| Countries in their Native Language | 0 | - | 4.99 | 196,470 |
| Independence from Whom | 0 | - | 4.99 | 209,463 |
| Subdivisions by Country | 0 | - | 4.86 | 50,034 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,584 |
| Megadiverse Countries | 0 | - | 4.97 | 133,831 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,650 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,876 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,373 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,836 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,546 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,938 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,592 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,059 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,178 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,715 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,377 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,362 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,427 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,445 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,606 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 90,999 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,661 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,229 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,221 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,154 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,877 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,853 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,508 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,766 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,962 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,172 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,877 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,252 |
| Widest Countries East to West | 0 | - | 4.92 | 128,520 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,076 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,520 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,624 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,517 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,947 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,031 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,552 |
| Countries with Double Letters | 0 | - | 4.97 | 93,216 |
| Countries that End in N | 0 | - | 4.94 | 156,284 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,487 |
| Countries with Six Letters | 0 | - | 4.93 | 210,189 |
| Countries with W | 0 | - | 4.97 | 158,097 |
| Countries with Z | 0 | - | 4.98 | 287,391 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,429 |
| Countries That End in U | 0 | - | 4.95 | 119,447 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,344 |
| Countries that End in O | 0 | - | 4.92 | 158,475 |
| Countries that End in R | 0 | - | 4.86 | 118,203 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,810 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,858 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,182 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,379 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,568 |
| Countries That End in Y | 0 | - | 4.90 | 185,152 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,176 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,545 |
| Countries that End in I | 0 | - | 4.94 | 134,306 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,017 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,142 |
| Countries That End in NIA | 0 | - | 4.92 | 108,931 |
| Countries That End in BIA | 0 | - | 4.92 | 147,610 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 165,971 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,406 |
| Countries That End in RIA | 0 | - | 4.93 | 126,011 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,918 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 224,975 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,430 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,806 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,241 |
