| Island Countries | 0 | - | 4.99 | 707,538 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,167 |
| European Countries by Clue | 0 | - | 4.92 | 182,348 |
| Countries by Military Spending | 0 | - | 4.93 | 176,370 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,415 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,902,396 |
| US States Quiz | 0 | - | 5.00 | 16,695,805 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,586,789 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,331 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,130 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,384 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,800,235 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,705 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,008 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,621 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,774 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,977 |
| All Country Flags of the World | 0 | - | 5.00 | 3,600,287 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,636 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,437 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,317 |
| Countries of Africa | 0 | - | 5.00 | 2,507,031 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,589 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,294 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,013 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,952 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,678 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,217 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,692 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,608 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,562 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,480 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,086 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,237 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,522 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,739 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,057 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,341 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,202 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,236 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,526 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,105 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,657 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,067 |
| Random Country to Capital | 0 | - | 4.98 | 911,411 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,046 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,288 |
| Asia Map Quiz | 0 | - | 4.99 | 906,811 |
| Countries that Start with U | 0 | - | 4.97 | 899,801 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,049 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,389 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,547 |
| Counties of England | 0 | - | 4.97 | 789,000 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,806 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,148 |
| Top World Languages | 0 | - | 4.92 | 812,854 |
| Countries of South America | 0 | - | 5.00 | 914,359 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,025 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,686 |
| Countries that Start with K | 0 | - | 4.97 | 809,231 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,085 |
| US States with an Empty Map | 0 | - | 5.00 | 618,648 |
| Countries that Start with V | 0 | - | 4.98 | 604,970 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,687 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,136 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,334 |
| Countries that Start with D | 0 | - | 4.96 | 701,291 |
| Countries That Border Russia | 0 | - | 4.98 | 458,840 |
| One Border Countries | 0 | - | 4.98 | 464,248 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,744 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,146 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,729 |
| Countries with Four Letters | 0 | - | 4.99 | 418,424 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,528 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,703 |
| Countries Bordering France | 0 | - | 4.83 | 398,748 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,533 |
| Northernmost Countries | 0 | - | 4.99 | 357,616 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,266 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,052 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,974 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,220 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,063 |
| Landlocked Countries | 0 | - | 4.99 | 413,400 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,114 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,294 |
| Australia Map Quiz | 0 | - | 4.94 | 342,430 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,713 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,522 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,412 |
| Countries that Start with H | 0 | - | 4.96 | 597,749 |
| Countries that Start with J | 0 | - | 4.98 | 595,825 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,288 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,795 |
| "Land" Countries | 0 | - | 4.98 | 333,587 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,358 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,669 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,762 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,299 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,469 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,085 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,771 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,205 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,026 |
| Countries with Z | 0 | - | 4.98 | 287,823 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,062 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,864 |
| Flags of North and South America | 0 | - | 4.99 | 366,913 |
| EU Countries Quiz | 0 | - | 4.99 | 269,816 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,201 |
| Countries that Border China | 0 | - | 4.96 | 261,793 |
| French-Speaking Countries | 0 | - | 4.85 | 268,758 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,634 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,201 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,833 |
| Every Country Shape | 0 | - | 5.00 | 458,730 |
| Europe Capital to Country | 0 | - | 4.99 | 247,573 |
| Longest International Borders | 0 | - | 4.99 | 263,517 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,162 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,819 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,614 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,601 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,792 |
| Megacities on a World Map | 0 | - | 4.98 | 250,877 |
| World Currency Quiz | 0 | - | 4.92 | 298,302 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,301 |
| NATO Countries | 0 | - | 4.98 | 275,598 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,877 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,073 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,184 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,403 |
| Official Cities in the UK | 0 | - | 4.89 | 280,454 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,073 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,190 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,255 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,373 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,427 |
| Countries with Megacities | 0 | - | 4.99 | 246,658 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,743 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,881 |
| World Capitals by Map | 0 | - | 5.00 | 283,125 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,910 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,343 |
| World's Busiest Airports | 0 | - | 4.94 | 210,348 |
| Country Chain | 0 | - | 4.96 | 215,685 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,351 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,714 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,588 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,897 |
| Independence from Whom | 0 | - | 4.99 | 209,629 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,790 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,616 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,556 |
| Countries with Six Letters | 0 | - | 4.93 | 210,308 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,571 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,466 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,359 |
| Flags of Oceania | 0 | - | 5.00 | 255,059 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,421 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,917 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,949 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,333 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,063 |
| Countries in their Native Language | 0 | - | 4.99 | 196,593 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,280 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,267 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,367 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,332 |
| Monarchies of the World | 0 | - | 4.94 | 166,567 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,518 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,711 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,368 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,983 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,142 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,066 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,886 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,788 |
| Countries That End in Y | 0 | - | 4.90 | 185,189 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,215 |
| Olympic Host Countries | 0 | - | 4.98 | 198,857 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,684 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,896 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,087 |
| Every European Country Shape | 0 | - | 4.96 | 200,098 |
| Countries of the Middle East | 0 | - | 4.96 | 198,861 |
| Countries by Official Language | 0 | - | 4.95 | 192,727 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,181 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,052 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,712 |
| Counties of Ireland | 0 | - | 4.92 | 192,997 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,412 |
| Countries Bordering India | 0 | - | 4.98 | 162,584 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,637 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,489 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,625 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,615 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,413 |
| European Cities by Clue | 0 | - | 4.70 | 88,795 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,942 |
| Islands by Country #2 | 0 | - | 4.80 | 76,977 |
