| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,818,383 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,537 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,429 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,048 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,570 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,867 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,048 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,591 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,829 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,802 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,719 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,901 |
| One Border Countries | 0 | - | 4.98 | 467,107 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,249 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,940 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,155 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,290 |
| Random Countries by Borders | 0 | - | 4.99 | 82,180 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,252,712 |
| Countries with Four Letters | 0 | - | 4.99 | 421,063 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,176 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,037 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,806 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,941 |
| Countries with Two Borders | 0 | - | 4.99 | 149,548 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,125 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,805 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,671 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,111 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,457 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,891 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,690 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,696 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,925 |
| Landlocked Countries | 0 | - | 4.99 | 417,805 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,749,392 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,513 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,146 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,987 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,442 |
| Himalayan Countries | 0 | - | 4.94 | 136,943 |
| Andean Countries | 0 | - | 4.95 | 83,700 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,946 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,291 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,616 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,197 |
| Danube Countries | 0 | - | 4.97 | 71,540 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,378 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,951 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,429 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,492 |
| European Landlocked Countries | 0 | - | 4.99 | 146,435 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,967 |
| Countries with the Most Species | 0 | - | 4.99 | 102,658 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,096 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,380 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,551 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,233 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,897 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,278 |
| Countries in the Alps | 0 | - | 4.86 | 117,511 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,012 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,144 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,343 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,859 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,964 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,370 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,134 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,090 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,891 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,445 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,424 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,276 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,833 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,104 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,117 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,963 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,981 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,509 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,376 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,735 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,921 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,913 |
| Largest Countries By Category | 0 | - | 4.97 | 157,458 |
| Countries by Countries | 0 | - | 4.96 | 62,730 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,213 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,994 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,289 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,506 |
| Island Countries | 0 | - | 4.99 | 709,298 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,810 |
| Northernmost Countries | 0 | - | 4.99 | 359,967 |
| Countries of South America | 0 | - | 5.00 | 921,431 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,186 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,862,790 |
| "Land" Countries | 0 | - | 4.98 | 335,481 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,357 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,020 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,203 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 236,081 |
| European Countries with One Border | 0 | - | 4.97 | 182,343 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,179 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,650 |
| Countries with Megacities | 0 | - | 4.99 | 249,706 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,487 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,764 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,824 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,739 |
| Countries by Official Language | 0 | - | 4.95 | 194,426 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,246 |
| Countries in their Native Language | 0 | - | 4.99 | 197,990 |
| Independence from Whom | 0 | - | 4.99 | 211,094 |
| Subdivisions by Country | 0 | - | 4.86 | 50,247 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,536 |
| Megadiverse Countries | 0 | - | 4.96 | 134,685 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,113 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,141 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,694 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,984 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,575 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,302 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,796 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,442 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,877 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,606 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,652 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,814 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,720 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,990 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,275 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,890 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,287 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,805 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,528 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,031 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,408 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,584 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,740 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,206 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,197 |
| Widest Countries East to West | 0 | - | 4.92 | 129,258 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,356 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,809 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,964 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,431 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,101 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,455 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,181 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,705 |
| Countries with Double Letters | 0 | - | 4.97 | 94,823 |
| Countries that End in N | 0 | - | 4.95 | 169,342 |
| Countries with Five Letters | 0 | - | 4.96 | 277,467 |
| Countries with Six Letters | 0 | - | 4.94 | 212,172 |
| Countries with W | 0 | - | 4.97 | 159,321 |
| Countries with Z | 0 | - | 4.98 | 289,519 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,528 |
| Countries That End in U | 0 | - | 4.95 | 120,302 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,540 |
| Countries that End in O | 0 | - | 4.92 | 159,115 |
| Countries that End in R | 0 | - | 4.87 | 118,665 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,445 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,114 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,976 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,983 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,570 |
| Countries That End in Y | 0 | - | 4.90 | 185,582 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,066 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,286 |
| Countries that End in I | 0 | - | 4.94 | 134,793 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,908 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,511 |
| Countries That End in NIA | 0 | - | 4.92 | 109,429 |
| Countries That End in BIA | 0 | - | 4.93 | 148,733 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,594 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,946 |
| Countries That End in RIA | 0 | - | 4.93 | 126,443 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,530 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,411 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,069 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,411 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,992 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,253 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,583 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,121 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,133 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,391 |
| Countries that End in L | 0 | - | 4.94 | 156,460 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,552 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,131 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,783 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,651 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,702 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,536 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,976 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,497 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,953 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,429 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,322 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,903 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,329 |
