| African Great Lakes | 0 | - | 4.82 | 66,603 |
| Sea in the Answers | 0 | - | 4.08 | 49,050 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,220 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,556 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,491 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,546 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,685 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,195 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 116,040 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,847 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,758 |
| Landforms by Country | 0 | - | 4.52 | 51,992 |
| Capitals by River | 0 | - | 4.55 | 48,353 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,636,866 |
| South China Sea Countries | 0 | - | 4.78 | 57,772 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,264 |
| Random Capital to Country | 0 | - | 4.99 | 2,595,864 |
| Random Country to Capital | 0 | - | 4.98 | 923,713 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,106,887 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,020 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,332 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,856 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,697 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 119,180 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,944 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,343 |
| Countries With One Word and Two U's | 0 | - | 4.45 | 51,142 |
| Countries with Four Letters | 0 | - | 4.99 | 423,733 |
| African Physical Geography | 0 | - | 4.51 | 31,756 |
| Asian Physical Geography | 0 | - | 4.61 | 35,571 |
| Rivers of the United States | 0 | - | 4.93 | 66,394 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 70,157 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 65,071 |
| Capital Cities Chain | 0 | - | 4.84 | 83,035 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,181 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 201,267 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,581 |
| Country Chain | 0 | - | 4.96 | 217,761 |
| Countries by Emojis | 0 | - | 4.99 | 240,663 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 322,090 |
| Islands by Country #1 | 0 | - | 4.90 | 175,638 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,794 |
| Regions of Countries #2 | 0 | - | 4.95 | 124,167 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,921 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 217,662 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,422 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,871 |
| Name a Valid Country #1 | 0 | - | 4.99 | 291,763 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,742 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,892 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,883 |
| Name a Valid Country #6 | 0 | - | 4.94 | 130,126 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,857 |
| Name a Valid Country #8 | 0 | - | 4.86 | 99,228 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.19 | 72,205 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 729,571 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,057 |
| Top 10 African Countries by Coastline | 0 | - | 4.29 | 47,957 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,949 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,131 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,349 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,027 |
| The Only Country ... | 0 | - | 4.91 | 81,503 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,267 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,414 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,345 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,900 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,649 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,025 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,393 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,946 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,992 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,819 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,271 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 140,401 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 80,355 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,709 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,296 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,318 |
| Random Countries by Borders | 0 | - | 4.99 | 82,735 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 385,358 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,573 |
| Geological Extremes | 0 | - | 4.34 | 40,070 |
| European Physical Geography | 0 | - | 4.26 | 33,549 |
| Longest Rivers in the UK | 0 | - | 4.42 | 13,822 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,438 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,807 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,452 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,572 |
| Random World Capitals on a Map | 0 | - | 4.93 | 135,007 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,569 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,850 |
| National Animals | 0 | - | 4.24 | 89,794 |
| Bodies of Water by Satellite Image #2 | 0 | - | 4.36 | 19,747 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,664 |
| Bear in the Answers | 0 | - | 4.29 | 62,130 |
| Boundary Waters | 0 | - | 4.92 | 88,613 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,287 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,359 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 99,332 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 67,187 |
| Cities Chain #2 | 0 | - | 4.42 | 56,443 |
| Cities Chain #1 | 0 | - | 4.61 | 66,702 |
| Name Any Valid U.S. City | 0 | - | 4.49 | 40,718 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,714 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,573 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,643,748 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 979,473 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,062 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,955 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 96,174 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 113,769 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 337,243 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 79,724 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,357 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,070 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 122,268 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,704 |
| South American Physical Geography | 0 | - | 4.58 | 18,377 |
| Seas of Europe | 0 | - | 4.37 | 84,766 |
| World Capitals Quiz | 0 | - | 5.00 | 5,088,071 |
| Solve the Secret Capital City | 0 | - | 4.80 | 163,855 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,452 |
| Landlocked Countries | 0 | - | 4.99 | 422,749 |
| Last Names by Country of Origin | 0 | - | 4.64 | 156,981 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,624 |
| Countries that Produce the Most Cheese per Capita | 0 | - | 4.51 | 52,937 |
| Bay of Bengal Countries With an Empty Map | 0 | - | 4.67 | 75,608 |
| Top 10 Hottest Asian Countries | 0 | - | 4.63 | 49,309 |
| Countries That Produce the Most Spices | 0 | - | 4.44 | 41,630 |
| Countries by Milk Production | 0 | - | 4.54 | 44,104 |
| Mountains by Country | 0 | - | 4.56 | 81,865 |
| Islands by Country #2 | 0 | - | 4.80 | 77,609 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,784,148 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,488 |
| Countries Which Eat the Most Beef | 0 | - | 4.46 | 50,320 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 241,042 |
| Animal Emojis | 0 | - | 4.74 | 84,897 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,749 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,100 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,518 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,532 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,303 |
| Fictional Cities | 0 | - | 4.26 | 47,960 |
| Word Scramble - Cities #2 | 0 | - | 4.54 | 25,182 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,592,573 |
| Word Scramble - National Capitals | 0 | - | 4.19 | 489,710 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,353 |
| Cities that End in A by Clue | 0 | - | 4.55 | 53,100 |
| Cities that End in O by Clue | 0 | - | 4.56 | 61,385 |
| Cities that End in N by Clue | 0 | - | 4.55 | 54,236 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,435 |
| Cities that End in S by Clue | 0 | - | 4.57 | 45,063 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,744 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,808 |
| Island Countries | 0 | - | 4.99 | 711,316 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,905 |
| Himalayan Countries | 0 | - | 4.95 | 139,076 |
| Andean Countries | 0 | - | 4.93 | 84,824 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,051 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,147 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,630 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,945 |
| Danube Countries | 0 | - | 4.97 | 72,110 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,147 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,514 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,478 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,973 |
| European Landlocked Countries | 0 | - | 4.99 | 147,246 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,788 |
| Countries with the Most Species | 0 | - | 4.99 | 103,323 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,917 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,636 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,757 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,604 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,333 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,753 |
| Countries in the Alps | 0 | - | 4.87 | 118,328 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,619 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,222 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,729 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,688 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,605 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,010 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,768 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,579 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,231 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,938 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,701 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,578 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 66,466 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,308 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,547 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,612 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,087 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,376 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,569 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,221 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,360 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,363 |
