| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,624,478 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 720,982 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,718 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,220 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,102,066 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 450,947 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,818 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,440 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,541 |
| Countries of Africa | 0 | - | 5.00 | 2,537,927 |
| Countries with Four Letters | 0 | - | 4.99 | 422,554 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,637 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,641 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,472,942 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,412 |
| Landlocked Countries | 0 | - | 4.99 | 420,705 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 977,003 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,754 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,726 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 182,612 |
| Country Chain | 0 | - | 4.96 | 217,122 |
| Countries by Emojis | 0 | - | 4.99 | 239,782 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,959 |
| Islands by Country #1 | 0 | - | 4.88 | 175,304 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,550 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,899 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,738 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,768,752 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,090 |
| Name a Valid Country #1 | 0 | - | 4.99 | 290,024 |
| Name a Valid Country #2 | 0 | - | 4.98 | 250,788 |
| Name a Valid Country #4 | 0 | - | 4.97 | 255,657 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,065 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,477 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,811 |
| Himalayan Countries | 0 | - | 4.95 | 138,154 |
| Andean Countries | 0 | - | 4.95 | 84,296 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,523 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,390 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,155 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,593 |
| Danube Countries | 0 | - | 4.97 | 71,852 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,822 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,257 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,012 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,466 |
| European Landlocked Countries | 0 | - | 4.99 | 146,987 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,402 |
| Countries with the Most Species | 0 | - | 4.99 | 103,106 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,555 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,513 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,665 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,962 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,217 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,455 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,128 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,519 |
| Countries in the Alps | 0 | - | 4.87 | 117,979 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,745 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,749 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,554 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,467 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,334 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,839 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,488 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,357 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,086 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,713 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,571 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,427 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,084 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,361 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,378 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,579 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,185 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,136 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,701 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,838 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,266 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,715 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,122 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,768 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,486 |
| Largest Countries By Category | 0 | - | 4.97 | 157,954 |
| Countries by Countries | 0 | - | 4.97 | 63,030 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,145 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,120 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,241 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,484 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,865 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,223 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,525 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,104 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,868 |
| Countries that Start with A | 0 | - | 4.98 | 2,163,114 |
| Countries that Start with B | 0 | - | 4.95 | 2,294,795 |
| Countries that Start with C | 0 | - | 4.96 | 1,822,435 |
| Countries that Start with D | 0 | - | 4.96 | 709,866 |
| Countries that Start with E | 0 | - | 4.95 | 1,377,468 |
| Countries that Start with G | 0 | - | 4.97 | 1,503,624 |
| Countries that Start with H | 0 | - | 4.96 | 604,942 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,533 |
| Countries that Start with J | 0 | - | 4.98 | 602,629 |
| Countries that Start with K | 0 | - | 4.97 | 815,994 |
| Countries that Start with L | 0 | - | 4.98 | 1,090,957 |
| Countries that Start with N | 0 | - | 4.93 | 1,117,946 |
| Countries that Start with P | 0 | - | 4.94 | 1,216,341 |
| Countries that Start with S | 0 | - | 4.98 | 1,755,141 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,026 |
| Countries that Start with U | 0 | - | 4.97 | 904,652 |
| Countries that Start with V | 0 | - | 4.98 | 609,462 |
| Countries that Start with F | 0 | - | 4.83 | 617,772 |
| Countries that Start with M | 0 | - | 4.97 | 1,381,938 |
| Random Countries by Borders | 0 | - | 4.99 | 82,462 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,109 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 239,898 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,439 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,095 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,354 |
| Island Countries | 0 | - | 4.99 | 710,486 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,169 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,094 |
| Northernmost Countries | 0 | - | 4.99 | 361,315 |
| Countries of South America | 0 | - | 5.00 | 925,323 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,331 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,479 |
| "Land" Countries | 0 | - | 4.98 | 336,688 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 383,589 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,053 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,994 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,411 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,514 |
| Countries with Megacities | 0 | - | 4.99 | 263,551 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,361 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,279 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,642 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,314 |
| Countries by Official Language | 0 | - | 4.95 | 194,975 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,994 |
| Countries in their Native Language | 0 | - | 4.99 | 198,482 |
| Independence from Whom | 0 | - | 4.99 | 211,754 |
| Subdivisions by Country | 0 | - | 4.86 | 50,371 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,012 |
| Megadiverse Countries | 0 | - | 4.96 | 134,901 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,824 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,269 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,853 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,061 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,941 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,493 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,241 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,950 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,571 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,045 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,377 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,800 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,105 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,880 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,258 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,424 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,743 |
| World Map Quiz | 0 | - | 4.81 | 64,893 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,495 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,209 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,821 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,114 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,846 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,824 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,746 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,882 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,184 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,364 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,456 |
| Widest Countries East to West | 0 | - | 4.92 | 129,524 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,418 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,198 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,069 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,647 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,428 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,718 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,317 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,769 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 336,706 |
| Countries with Double Letters | 0 | - | 4.97 | 95,616 |
| Countries that End in N | 0 | - | 4.95 | 170,604 |
| Countries with Five Letters | 0 | - | 4.96 | 281,645 |
| Countries with Six Letters | 0 | - | 4.94 | 213,027 |
| Countries with W | 0 | - | 4.97 | 159,925 |
| Countries with Z | 0 | - | 4.98 | 290,862 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,238 |
| Countries That End in U | 0 | - | 4.95 | 120,610 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,104 |
| Countries that End in O | 0 | - | 4.92 | 159,349 |
| Countries that End in R | 0 | - | 4.87 | 118,836 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,611 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,709 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,389 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,271 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,886 |
| Countries That End in Y | 0 | - | 4.91 | 185,763 |
