| One Country By Letter By Continent | 0 | - | 5.00 | 124,123 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,502,713 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,364 |
| Countries Bordering "U" Countries | 0 | - | 4.82 | 24,556 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,326 |
| Landlocked Countries | 0 | - | 4.99 | 421,027 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,771,326 |
| Countries that Start with A | 0 | - | 4.98 | 2,164,016 |
| Countries that Start with B | 0 | - | 4.95 | 2,295,687 |
| Countries that Start with C | 0 | - | 4.96 | 1,823,117 |
| Countries that Start with D | 0 | - | 4.96 | 710,368 |
| Countries that Start with E | 0 | - | 4.95 | 1,378,034 |
| Countries that Start with G | 0 | - | 4.97 | 1,504,236 |
| Countries that Start with H | 0 | - | 4.96 | 605,306 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,978 |
| Countries that Start with J | 0 | - | 4.98 | 602,967 |
| Countries that Start with K | 0 | - | 4.97 | 816,370 |
| Countries that Start with L | 0 | - | 4.98 | 1,091,385 |
| Countries that Start with N | 0 | - | 4.93 | 1,118,402 |
| Countries that Start with P | 0 | - | 4.94 | 1,216,810 |
| Countries that Start with S | 0 | - | 4.98 | 1,755,739 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,373 |
| Countries that Start with U | 0 | - | 4.97 | 904,947 |
| Countries that Start with V | 0 | - | 4.98 | 609,638 |
| Countries that Start with F | 0 | - | 4.83 | 618,041 |
| Countries that Start with M | 0 | - | 4.97 | 1,382,425 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,559 |
| Orthodox Countries | 0 | - | 4.92 | 132,058 |
| Battle to Country | 0 | - | 4.91 | 53,399 |
| Monarchies of Europe | 0 | - | 4.90 | 98,206 |
| Monarchies of Asia | 0 | - | 4.97 | 71,129 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,927 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,002 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,840 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,224 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,319 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,945 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,733 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,223 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,609 |
| Island Countries | 0 | - | 4.99 | 710,655 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,995 |
| Himalayan Countries | 0 | - | 4.95 | 138,303 |
| Andean Countries | 0 | - | 4.93 | 84,373 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,593 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,509 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,224 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,626 |
| Danube Countries | 0 | - | 4.97 | 71,898 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,875 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,294 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,092 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,562 |
| European Landlocked Countries | 0 | - | 4.99 | 147,029 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,460 |
| Countries with the Most Species | 0 | - | 4.99 | 103,149 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,611 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,534 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,675 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,468 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,150 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,555 |
| Countries in the Alps | 0 | - | 4.87 | 118,040 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,317 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,834 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,579 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,505 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,380 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,873 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,538 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,399 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,111 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,744 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,585 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,444 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,118 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,384 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,418 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,663 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,213 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,726 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,886 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,450 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,819 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,141 |
| Largest Countries By Category | 0 | - | 4.97 | 158,018 |
| Countries by Countries | 0 | - | 4.96 | 63,081 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,540 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,665 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,861 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,256 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,101 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,564 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,574 |
| Northernmost Countries | 0 | - | 4.99 | 361,508 |
| Countries of South America | 0 | - | 5.00 | 925,837 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,062 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,744 |
| "Land" Countries | 0 | - | 4.98 | 336,986 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,197 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,093 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,024 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 89,082 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,139 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,324 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,824 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,323 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,862 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,589 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,549 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,625 |
| Countries with Megacities | 0 | - | 4.99 | 263,868 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,474 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,328 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,751 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,377 |
| Countries by Official Language | 0 | - | 4.95 | 195,043 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,107 |
| Countries in their Native Language | 0 | - | 4.99 | 198,551 |
| Independence from Whom | 0 | - | 4.99 | 211,857 |
| Subdivisions by Country | 0 | - | 4.86 | 50,385 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,545 |
| Countries in World War I | 0 | - | 4.88 | 228,259 |
| Megadiverse Countries | 0 | - | 4.96 | 134,926 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,138 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,907 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,287 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,869 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,075 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,988 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,527 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,327 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,971 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,593 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,051 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,462 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,818 |
| Hindu Countries | 0 | - | 4.86 | 50,205 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,129 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,907 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,292 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,438 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,881 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,250 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,886 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,159 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,881 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,929 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,796 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,920 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,213 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,388 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,498 |
| Widest Countries East to West | 0 | - | 4.92 | 129,561 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,425 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,253 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,086 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,686 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,473 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,759 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,332 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,779 |
| Countries with Double Letters | 0 | - | 4.96 | 95,931 |
| Countries that End in N | 0 | - | 4.95 | 170,840 |
| Countries with Five Letters | 0 | - | 4.96 | 281,952 |
| Countries with Six Letters | 0 | - | 4.94 | 213,260 |
| Countries with W | 0 | - | 4.97 | 160,112 |
| Countries with Z | 0 | - | 4.98 | 291,129 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,473 |
| Countries That End in U | 0 | - | 4.95 | 120,728 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,240 |
| Countries that End in O | 0 | - | 4.92 | 159,430 |
| Countries that End in R | 0 | - | 4.87 | 118,897 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,665 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,845 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,536 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,370 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,266 |
| Countries That End in Y | 0 | - | 4.91 | 185,804 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,727 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,721 |
| Countries that End in I | 0 | - | 4.94 | 135,027 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,897 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,748 |
| Countries That End in NIA | 0 | - | 4.92 | 109,697 |
| Countries That End in BIA | 0 | - | 4.93 | 149,090 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,974 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,305 |
| Countries That End in RIA | 0 | - | 4.93 | 126,730 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,897 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,295 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,530 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,931 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,505 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,502 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,916 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,411 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,407 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,355 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,836 |
