| Countries with Wild Tigers | 0 | - | 4.96 | 136,152 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,738 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,791 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,827 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,948 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,580 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,629 |
| Megadiverse Countries | 0 | - | 4.96 | 134,690 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,812 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,771 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,890 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,717 |
| Countries with Fjords | 0 | - | 4.93 | 100,697 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,692 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,558 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,204 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,124 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,286 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,712 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,885 |
| Boundary Waters | 0 | - | 4.92 | 88,328 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,043 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,791 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,550 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,948 |
| North Sea Countries | 0 | - | 4.92 | 87,130 |
| Black Sea Countries | 0 | - | 4.87 | 60,546 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,266 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,371 |
| Countries With No Rivers | 0 | - | 4.96 | 76,593 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,140 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,255,511 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,776 |
| Landlocked Countries | 0 | - | 4.99 | 417,849 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,457 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,261 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,568 |
| African Great Lakes | 0 | - | 4.82 | 65,896 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,255 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,634 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,283 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,505 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,489 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,125 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,566 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,453 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,509 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,515 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,735 |
| World Capitals Quiz | 0 | - | 5.00 | 5,057,599 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,463 |
| Himalayan Countries | 0 | - | 4.94 | 136,962 |
| Andean Countries | 0 | - | 4.95 | 83,709 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,949 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,296 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,626 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,203 |
| Danube Countries | 0 | - | 4.97 | 71,545 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,383 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,957 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,441 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,497 |
| European Landlocked Countries | 0 | - | 4.99 | 146,490 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,970 |
| Countries with the Most Species | 0 | - | 4.99 | 102,668 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,103 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,382 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,552 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,237 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,902 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,281 |
| Countries in the Alps | 0 | - | 4.86 | 117,521 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,021 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,153 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,346 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,865 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,966 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,371 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,137 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,095 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,897 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,449 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,427 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,279 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,840 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,106 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,123 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,971 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,984 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,509 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,386 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,750 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,941 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,915 |
| Largest Countries By Category | 0 | - | 4.97 | 157,464 |
| Countries by Countries | 0 | - | 4.96 | 62,737 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,289 |
| Country Flags with the Most White | 0 | - | 4.87 | 138,055 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,124 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,448 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,216 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,749,644 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,264 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,707 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,145 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,363 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,265 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,836 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,995 |
| Longest International Borders | 0 | - | 4.99 | 264,499 |
| Countries with Three Borders | 0 | - | 4.96 | 36,405 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,851 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,946 |
| Demonym of Every Country | 0 | - | 4.91 | 59,050 |
| Name that Bug | 0 | - | 4.12 | 45,517 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,021 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,580,654 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,298 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,532 |
| Island Countries | 0 | - | 4.99 | 709,312 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,984 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,842 |
| Northernmost Countries | 0 | - | 4.99 | 359,983 |
| Countries of South America | 0 | - | 5.00 | 921,477 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,268 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,862,901 |
| "Land" Countries | 0 | - | 4.98 | 335,503 |
| Top World Languages | 0 | - | 4.92 | 819,007 |
| African Physical Geography | 0 | - | 4.51 | 31,641 |
| Asian Physical Geography | 0 | - | 4.61 | 35,467 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,372 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,784 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,781 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,296 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,217 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,646 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,352 |
| Europe Map Quiz | 0 | - | 5.00 | 4,751,137 |
| All Country Flags of the World | 0 | - | 5.00 | 3,640,434 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,644 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,053 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,328 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,259 |
| Mammals by Picture #3 | 0 | - | 4.39 | 62,002 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,059 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,111 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,308 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,273 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,037 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,619 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,756 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,340 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,659 |
| Countries with Megacities | 0 | - | 4.99 | 249,728 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,499 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,770 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,829 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,746 |
| Biggest Cities in the World | 0 | - | 4.91 | 795,455 |
| Biggest City by River | 0 | - | 4.41 | 52,806 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,462 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,678 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,793 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,165 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,191 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,808 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,397 |
| Countries by Capital City | 0 | - | 5.00 | 67,729 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,869 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,370 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,263 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,860 |
| Moved Capital Cities | 0 | - | 4.96 | 73,972 |
| Countries by Official Language | 0 | - | 4.95 | 194,434 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,256 |
| Countries in their Native Language | 0 | - | 4.99 | 197,998 |
| Independence from Whom | 0 | - | 4.99 | 211,102 |
| Subdivisions by Country | 0 | - | 4.86 | 50,249 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,542 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,122 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,142 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,695 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,985 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,583 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,307 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,802 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,730 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,444 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,893 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,616 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,653 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,833 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,723 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,010 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,276 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,901 |
| World Map Quiz | 0 | - | 4.81 | 64,334 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,033 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,907 |
| Countries by Founding Story | 0 | - | 4.95 | 76,978 |
