| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,726 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 711,446 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,671 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,625 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,884 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,750 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,145 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,097 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,220 |
| Countries of Africa | 0 | - | 5.00 | 2,507,706 |
| Countries with Four Letters | 0 | - | 4.99 | 418,500 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 67,828 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,181 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,914,064 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,388 |
| Landlocked Countries | 0 | - | 4.99 | 413,533 |
| Countries of the World - One Minute Sprint | 0 | - | 4.35 | 956,169 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,990 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,310 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,427 |
| Country Chain | 0 | - | 4.96 | 215,716 |
| Countries by Emojis | 0 | - | 4.99 | 236,154 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,104 |
| Islands by Country #1 | 0 | - | 4.87 | 174,475 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,914 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,276 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,329 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,018 |
| Name a Valid Country #3 | 0 | - | 4.99 | 259,795 |
| Name a Valid Country #1 | 0 | - | 4.99 | 283,460 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,378 |
| Name a Valid Country #4 | 0 | - | 4.97 | 251,559 |
| Name a Valid Country #5 | 0 | - | 4.99 | 189,785 |
| Name a Valid Country #6 | 0 | - | 4.95 | 126,387 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,558 |
| Himalayan Countries | 0 | - | 4.95 | 135,329 |
| Andean Countries | 0 | - | 4.94 | 82,810 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,205 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,184 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,884 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,591 |
| Danube Countries | 0 | - | 4.97 | 71,071 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,751 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,530 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,457 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,378 |
| European Landlocked Countries | 0 | - | 4.99 | 145,743 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,189 |
| Countries with the Most Species | 0 | - | 4.99 | 95,238 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,328 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,365 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,434 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,444 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,951 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,571 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,945 |
| Countries in the Alps | 0 | - | 4.86 | 116,810 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,554 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,245 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,997 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,413 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,153 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,993 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,563 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,743 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,255 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,043 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,039 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,449 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,733 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,746 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,050 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,634 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,336 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,252 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,763 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,242 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,659 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,598 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,336 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,847 |
| Largest Countries By Category | 0 | - | 4.97 | 156,746 |
| Countries by Countries | 0 | - | 4.96 | 62,249 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,561 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,808 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,319 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,373 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,429 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,961 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,758 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,593 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,751 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,638 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,728 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,185 |
| Countries that Start with D | 0 | - | 4.96 | 701,451 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,426 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,677 |
| Countries that Start with H | 0 | - | 4.96 | 597,891 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,187 |
| Countries that Start with J | 0 | - | 4.98 | 595,952 |
| Countries that Start with K | 0 | - | 4.97 | 809,334 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,792 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,655 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,466 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,401 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,149 |
| Countries that Start with U | 0 | - | 4.97 | 899,876 |
| Countries that Start with V | 0 | - | 4.98 | 605,049 |
| Countries that Start with F | 0 | - | 4.83 | 612,134 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,234 |
| Random Countries by Borders | 0 | - | 4.99 | 81,667 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,209 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 236,410 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,826 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,095 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,810 |
| Island Countries | 0 | - | 4.99 | 707,591 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,129 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,364 |
| Northernmost Countries | 0 | - | 4.99 | 357,688 |
| Countries of South America | 0 | - | 5.00 | 914,592 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,306 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,073 |
| "Land" Countries | 0 | - | 4.98 | 333,632 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 378,525 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 134,799 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,955 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,596 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,159 |
| Countries with Megacities | 0 | - | 4.99 | 246,821 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,076 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,945 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,495 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,832 |
| Countries by Official Language | 0 | - | 4.95 | 192,759 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,107 |
| Countries in their Native Language | 0 | - | 4.99 | 196,625 |
| Independence from Whom | 0 | - | 4.99 | 209,674 |
| Subdivisions by Country | 0 | - | 4.86 | 50,063 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,733 |
| Megadiverse Countries | 0 | - | 4.97 | 133,894 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,788 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,918 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,425 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,857 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,645 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,992 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,937 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,139 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,210 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,739 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,559 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,411 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,488 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,500 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,668 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,019 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,568 |
| World Map Quiz | 0 | - | 4.81 | 63,491 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,642 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,320 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,331 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,980 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,944 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,733 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,846 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,053 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,268 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,940 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,332 |
| Widest Countries East to West | 0 | - | 4.92 | 128,600 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,216 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,202 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,562 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,682 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,622 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,034 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,050 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,579 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 334,898 |
| Countries with Double Letters | 0 | - | 4.97 | 93,375 |
| Countries that End in N | 0 | - | 4.94 | 156,761 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,670 |
| Countries with Six Letters | 0 | - | 4.93 | 210,345 |
| Countries with W | 0 | - | 4.97 | 158,217 |
| Countries with Z | 0 | - | 4.98 | 287,862 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,539 |
| Countries That End in U | 0 | - | 4.95 | 119,512 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,529 |
| Countries that End in O | 0 | - | 4.92 | 158,549 |
| Countries that End in R | 0 | - | 4.87 | 118,270 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,856 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,004 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,313 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,484 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,003 |
| Countries That End in Y | 0 | - | 4.90 | 185,197 |
