| Spanish-Speaking Countries | 0 | - | 4.95 | 372,549 |
| Countries by Official Language | 0 | - | 4.95 | 193,034 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,488 |
| Countries in their Native Language | 0 | - | 4.99 | 196,881 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,042 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,724 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,015,168 |
| French-Speaking Countries | 0 | - | 4.85 | 269,145 |
| German-Speaking Countries | 0 | - | 4.89 | 123,575 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,227 |
| Landlocked Countries | 0 | - | 4.99 | 414,814 |
| English Speaking Countries | 0 | - | 4.64 | 356,251 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,726,485 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,346 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 713,170 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,075 |
| Himalayan Countries | 0 | - | 4.95 | 135,785 |
| Andean Countries | 0 | - | 4.94 | 83,070 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,406 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,496 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,107 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,767 |
| Danube Countries | 0 | - | 4.97 | 71,211 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,932 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,659 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,754 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,660 |
| European Landlocked Countries | 0 | - | 4.99 | 145,903 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,411 |
| Countries with the Most Species | 0 | - | 4.99 | 95,313 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,565 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,242 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,415 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,030 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,674 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,039 |
| Countries in the Alps | 0 | - | 4.86 | 117,028 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,700 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,484 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,123 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,531 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,318 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,105 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,728 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,859 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,637 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,166 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,243 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,111 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,569 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,847 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,847 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,335 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,756 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,329 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,967 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,945 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,057 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,693 |
| Largest Countries By Category | 0 | - | 4.97 | 156,939 |
| Countries by Countries | 0 | - | 4.96 | 62,392 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,577 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,003 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,365 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,884 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,383 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,449 |
| Island Countries | 0 | - | 4.99 | 708,085 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,069 |
| Northernmost Countries | 0 | - | 4.99 | 358,410 |
| Countries of South America | 0 | - | 5.00 | 916,907 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,006 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,852,482 |
| "Land" Countries | 0 | - | 4.98 | 333,964 |
| Top World Languages | 0 | - | 4.92 | 814,701 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,523 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,353 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,752 |
| Countries with Megacities | 0 | - | 4.99 | 247,870 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,628 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,267 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,016 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,214 |
| Independence from Whom | 0 | - | 4.99 | 210,006 |
| Subdivisions by Country | 0 | - | 4.86 | 50,118 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,965 |
| Megadiverse Countries | 0 | - | 4.97 | 134,002 |
| 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 | 161,808 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,083 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,253 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,312 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,271 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,773 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,805 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,481 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,580 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,565 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,759 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,090 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,943 |
| World Map Quiz | 0 | - | 4.81 | 63,705 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,360 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,485 |
| Countries by Founding Story | 0 | - | 4.95 | 76,658 |
| Countries by Road Signs | 0 | - | 4.98 | 53,236 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,664 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,431 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,163 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,154 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,052 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,250 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,445 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,038 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,486 |
| Widest Countries East to West | 0 | - | 4.92 | 128,978 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,269 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,406 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,623 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,814 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,759 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,173 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 75,494 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,630 |
| Countries with Double Letters | 0 | - | 4.97 | 93,610 |
| Countries that End in N | 0 | - | 4.94 | 157,080 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,933 |
| Countries with Six Letters | 0 | - | 4.93 | 210,605 |
| Countries with W | 0 | - | 4.97 | 158,372 |
| Countries with Z | 0 | - | 4.98 | 288,145 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,705 |
| Countries That End in U | 0 | - | 4.95 | 119,594 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,807 |
| Countries that End in O | 0 | - | 4.92 | 158,627 |
| Countries that End in R | 0 | - | 4.87 | 118,351 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,913 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,336 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,494 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,606 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,156 |
| Countries That End in Y | 0 | - | 4.90 | 185,265 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,559 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,842 |
| Countries that End in I | 0 | - | 4.94 | 134,517 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,397 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,272 |
| Countries That End in NIA | 0 | - | 4.92 | 109,087 |
| Countries That End in BIA | 0 | - | 4.92 | 147,819 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,204 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,601 |
| Countries That End in RIA | 0 | - | 4.93 | 126,171 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,136 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,593 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,633 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,994 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,503 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,995 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,237 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,757 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,640 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,871 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,284 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,945 |
| Countries that End in L | 0 | - | 4.94 | 156,131 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,867 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,016 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,597 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,412 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,499 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,809 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,547 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,178 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,586 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,947 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,870 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,787 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,227 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,451 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,395 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,727 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,092 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,112 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,147 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,805,767 |
| One Border Countries | 0 | - | 4.98 | 465,281 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,594,225 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,543 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,098 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,378 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,098 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,590 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,875 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,461 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,782 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,258 |
| Countries by National Anthem | 0 | - | 4.92 | 71,064 |
| NATO Countries | 0 | - | 4.98 | 276,907 |
| EU Countries Quiz | 0 | - | 4.99 | 270,646 |
