| Countries by Three Words #2 | 0 | - | 4.97 | 203,042 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,787 |
| European Countries by Clue | 0 | - | 4.92 | 183,782 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 101,167 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,563,076 |
| Landlocked Countries | 0 | - | 4.99 | 421,716 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,776,985 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,963 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,323 |
| Himalayan Countries | 0 | - | 4.95 | 138,608 |
| Andean Countries | 0 | - | 4.93 | 84,545 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,729 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,731 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,367 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,756 |
| Danube Countries | 0 | - | 4.97 | 71,975 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,978 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,392 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,250 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,726 |
| European Landlocked Countries | 0 | - | 4.99 | 147,111 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,584 |
| Countries with the Most Species | 0 | - | 4.99 | 103,210 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,716 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,574 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,708 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,522 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,207 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,631 |
| Countries in the Alps | 0 | - | 4.87 | 118,167 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,943 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,995 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,627 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,572 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,473 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,928 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,646 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,468 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,167 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,819 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,639 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,505 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,198 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,446 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,494 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,840 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,290 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,393 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,033 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,796 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,029 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,204 |
| Largest Countries By Category | 0 | - | 4.97 | 158,173 |
| Countries by Countries | 0 | - | 4.96 | 63,184 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,653 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,271 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,556 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,982 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,654 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,367 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,439 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,033 |
| Island Countries | 0 | - | 4.99 | 710,954 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,533 |
| Northernmost Countries | 0 | - | 4.99 | 361,838 |
| Countries of South America | 0 | - | 5.00 | 927,077 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,441 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,876,495 |
| "Land" Countries | 0 | - | 4.98 | 337,265 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,383,015 |
| The Only American Country ... | 0 | - | 4.92 | 121,774 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,289 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,137 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,447 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 109,041 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,675 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,814 |
| Countries with Megacities | 0 | - | 4.99 | 264,405 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,678 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,440 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,941 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,505 |
| Countries by Official Language | 0 | - | 4.95 | 195,206 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,292 |
| Countries in their Native Language | 0 | - | 4.99 | 198,995 |
| Independence from Whom | 0 | - | 4.99 | 212,033 |
| Subdivisions by Country | 0 | - | 4.86 | 50,421 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,684 |
| Megadiverse Countries | 0 | - | 4.96 | 134,988 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,037 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,334 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,221 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,093 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,092 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,579 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,427 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,015 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,634 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,133 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,636 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,862 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,190 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,949 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,340 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,477 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,116 |
| World Map Quiz | 0 | - | 4.81 | 65,047 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,155 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,331 |
| Countries by Founding Story | 0 | - | 4.95 | 77,346 |
| Countries by Road Signs | 0 | - | 4.98 | 53,990 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,034 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,248 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,968 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,128 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,862 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,981 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,271 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,427 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,552 |
| Widest Countries East to West | 0 | - | 4.92 | 129,620 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,443 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,348 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,111 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,750 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,567 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,843 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,364 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,795 |
| Countries with Double Letters | 0 | - | 4.96 | 96,171 |
| Countries that End in N | 0 | - | 4.95 | 171,054 |
| Countries with Five Letters | 0 | - | 4.96 | 282,312 |
| Countries with Six Letters | 0 | - | 4.94 | 213,481 |
| Countries with W | 0 | - | 4.97 | 160,281 |
| Countries with Z | 0 | - | 4.98 | 291,372 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,642 |
| Countries That End in U | 0 | - | 4.95 | 120,820 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,405 |
| Countries that End in O | 0 | - | 4.92 | 159,488 |
| Countries that End in R | 0 | - | 4.87 | 118,948 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,706 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,017 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,650 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,447 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,360 |
| Countries That End in Y | 0 | - | 4.91 | 185,857 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,864 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,820 |
| Countries that End in I | 0 | - | 4.94 | 135,067 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,036 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,804 |
| Countries That End in NIA | 0 | - | 4.92 | 109,759 |
| Countries That End in BIA | 0 | - | 4.93 | 149,164 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,073 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,394 |
| Countries That End in RIA | 0 | - | 4.93 | 126,784 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,991 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,520 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,661 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,061 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,617 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,558 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,991 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,433 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,494 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,401 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,249 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,948 |
| Countries that End in L | 0 | - | 4.94 | 156,804 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,594 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,256 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,000 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,930 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,974 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,690 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,613 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,954 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,501 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,390 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,839 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,083 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,697 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,853 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,757 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,871 |
| One Border Countries | 0 | - | 4.98 | 469,736 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,411 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 57,005 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,833,820 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,630,878 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,449 |
| Countries by Three Words #3 | 0 | - | 4.80 | 128,943 |
| Countries by Three Words #4 | 0 | - | 4.45 | 100,916 |
| Countries by a Single Clue #1 | 0 | - | 4.75 | 100,801 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 95,117 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 86,870 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 77,023 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 87,047 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 95,030 |
| Countries by a Single Clue #10 | 0 | - | 4.55 | 67,890 |
