| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 713,150 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,594,085 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,090,593 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,264 |
| Countries with Four Letters | 0 | - | 4.99 | 419,222 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 163,631 |
| Solve the Secret Country #2 | 0 | - | 4.85 | 116,504 |
| Anagram Chain - Countries | 0 | - | 4.99 | 115,465 |
| Countries but all Vowels are Changed to O | 0 | - | 4.92 | 68,141 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 63,437 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,013,445 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 198,556 |
| Top Five Countries By Category #3 | 0 | - | 4.82 | 169,671 |
| Country Chain | 0 | - | 4.96 | 215,964 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,759 |
| Countries by Emojis | 0 | - | 4.99 | 237,067 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,235 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,581 |
| Islands by Country #1 | 0 | - | 4.87 | 174,607 |
| Regions of Countries #1 | 0 | - | 4.97 | 159,022 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,360 |
| Regions of Countries #3 | 0 | - | 4.84 | 90,400 |
| Name a Valid Country #3 | 0 | - | 4.99 | 260,195 |
| Name a Valid Country #1 | 0 | - | 4.99 | 284,461 |
| Name a Valid Country #2 | 0 | - | 4.98 | 246,894 |
| Name a Valid Country #4 | 0 | - | 4.97 | 252,266 |
| Name a Valid Country #5 | 0 | - | 4.99 | 190,204 |
| Name a Valid Country #6 | 0 | - | 4.94 | 126,740 |
| Landlocked Countries | 0 | - | 4.99 | 414,793 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,726,268 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 237,057 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,618 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 88,544 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,452 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,420 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,946 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,910 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,758 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,974 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,171 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,658 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,678 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,676 |
| Random Countries by Borders | 0 | - | 4.99 | 81,781 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,500 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,362 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,543 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,439 |
| Island Countries | 0 | - | 4.99 | 708,081 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,067 |
| Himalayan Countries | 0 | - | 4.95 | 135,777 |
| Andean Countries | 0 | - | 4.94 | 83,067 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,402 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,488 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,103 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,762 |
| Danube Countries | 0 | - | 4.97 | 71,206 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,930 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,659 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,748 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,652 |
| European Landlocked Countries | 0 | - | 4.99 | 145,896 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,408 |
| Countries with the Most Species | 0 | - | 4.99 | 95,312 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,561 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,241 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,413 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,030 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,673 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,036 |
| Countries in the Alps | 0 | - | 4.86 | 117,024 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,698 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,481 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,119 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,529 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,316 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,102 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,724 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,858 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,634 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,166 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,242 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,110 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,566 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,846 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,846 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,333 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,754 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,327 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,965 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,933 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,055 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,692 |
| Largest Countries By Category | 0 | - | 4.97 | 156,937 |
| Countries by Countries | 0 | - | 4.96 | 62,391 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,476 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,574 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,003 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,883 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,039 |
| Northernmost Countries | 0 | - | 4.99 | 358,399 |
| Countries of South America | 0 | - | 5.00 | 916,854 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,969 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,852,395 |
| "Land" Countries | 0 | - | 4.98 | 333,958 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 379,452 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,599 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,186 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 135,381 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,569 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,070 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,140 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,746 |
| Countries with Megacities | 0 | - | 4.99 | 247,860 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,620 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,261 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,011 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,210 |
| Countries by Official Language | 0 | - | 4.95 | 193,030 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,482 |
| Countries in their Native Language | 0 | - | 4.99 | 196,875 |
| Independence from Whom | 0 | - | 4.99 | 210,001 |
| Subdivisions by Country | 0 | - | 4.86 | 50,118 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,956 |
| Megadiverse Countries | 0 | - | 4.97 | 134,000 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,039 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,979 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,486 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,890 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,806 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,082 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,248 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,304 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,270 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,773 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,798 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,478 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,577 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,564 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,756 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,090 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,938 |
| World Map Quiz | 0 | - | 4.81 | 63,701 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,343 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,479 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,920 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,656 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,428 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,159 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,146 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,051 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,246 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,444 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,036 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,484 |
| Widest Countries East to West | 0 | - | 4.92 | 128,976 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,268 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,393 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,622 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,809 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,754 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,172 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 75,360 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,630 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 335,317 |
| Countries with Double Letters | 0 | - | 4.97 | 93,605 |
| Countries that End in N | 0 | - | 4.94 | 157,077 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,927 |
| Countries with Six Letters | 0 | - | 4.93 | 210,603 |
| Countries with W | 0 | - | 4.97 | 158,370 |
| Countries with Z | 0 | - | 4.98 | 288,141 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,702 |
| Countries That End in U | 0 | - | 4.95 | 119,590 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,804 |
| Countries that End in O | 0 | - | 4.92 | 158,625 |
| Countries that End in R | 0 | - | 4.87 | 118,349 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,912 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,331 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,489 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,605 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,152 |
| Countries That End in Y | 0 | - | 4.90 | 185,263 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,555 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,842 |
| Countries that End in I | 0 | - | 4.94 | 134,514 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,396 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,270 |
| Countries That End in NIA | 0 | - | 4.92 | 109,087 |
| Countries That End in BIA | 0 | - | 4.92 | 147,818 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,202 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,598 |
| Countries That End in RIA | 0 | - | 4.93 | 126,169 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,132 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,591 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,632 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,992 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,498 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,995 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,236 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,754 |
