| Island Countries | 0 | - | 4.99 | 707,640 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,226 |
| European Countries by Clue | 0 | - | 4.92 | 182,374 |
| Countries by Military Spending | 0 | - | 4.93 | 176,412 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,532 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,923,795 |
| US States Quiz | 0 | - | 5.00 | 16,702,855 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,588,342 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,031 |
| World Capitals Quiz | 0 | - | 5.00 | 5,031,892 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,715 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,801,310 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,440 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,450 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,090 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,219 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,472 |
| All Country Flags of the World | 0 | - | 5.00 | 3,602,717 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,115 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,962 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,946 |
| Countries of Africa | 0 | - | 5.00 | 2,508,181 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,549 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,756 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,295 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,397 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,975 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,584 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,164 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,229 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,515 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,858 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,418 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,578 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,899 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,829 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,317 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,601 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,501 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,453 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,787 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,882 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,928 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,248 |
| Random Country to Capital | 0 | - | 4.98 | 911,675 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,252 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,754 |
| Asia Map Quiz | 0 | - | 4.99 | 907,123 |
| Countries that Start with U | 0 | - | 4.97 | 899,954 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,562 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,817 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,699 |
| Counties of England | 0 | - | 4.97 | 789,281 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,003 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,374 |
| Top World Languages | 0 | - | 4.92 | 813,212 |
| Countries of South America | 0 | - | 5.00 | 914,851 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,369 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,978 |
| Countries that Start with K | 0 | - | 4.97 | 809,441 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,192 |
| US States with an Empty Map | 0 | - | 5.00 | 618,891 |
| Countries that Start with V | 0 | - | 4.98 | 605,124 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,930 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,195 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,654 |
| Countries that Start with D | 0 | - | 4.96 | 701,601 |
| Countries That Border Russia | 0 | - | 4.98 | 458,944 |
| One Border Countries | 0 | - | 4.98 | 464,409 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,869 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,322 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,872 |
| Countries with Four Letters | 0 | - | 4.99 | 418,557 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,817 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,798 |
| Countries Bordering France | 0 | - | 4.83 | 399,198 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,664 |
| Northernmost Countries | 0 | - | 4.99 | 357,750 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,327 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,134 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,078 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,292 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,108 |
| Landlocked Countries | 0 | - | 4.99 | 413,660 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,231 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,388 |
| Australia Map Quiz | 0 | - | 4.94 | 342,509 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,810 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,660 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,561 |
| Countries that Start with H | 0 | - | 4.96 | 598,007 |
| Countries that Start with J | 0 | - | 4.98 | 596,065 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,446 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,888 |
| "Land" Countries | 0 | - | 4.98 | 333,665 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,403 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,698 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,962 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,492 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,555 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,461 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,866 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,329 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,138 |
| Countries with Z | 0 | - | 4.98 | 287,886 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,144 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,943 |
| Flags of North and South America | 0 | - | 4.99 | 367,319 |
| EU Countries Quiz | 0 | - | 4.99 | 269,966 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,303 |
| Countries that Border China | 0 | - | 4.96 | 261,830 |
| French-Speaking Countries | 0 | - | 4.85 | 268,813 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,692 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,249 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,960 |
| Every Country Shape | 0 | - | 5.00 | 459,005 |
| Europe Capital to Country | 0 | - | 4.99 | 247,937 |
| Longest International Borders | 0 | - | 4.99 | 263,547 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,355 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,862 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,016 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,672 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,832 |
| Megacities on a World Map | 0 | - | 4.98 | 250,991 |
| World Currency Quiz | 0 | - | 4.92 | 298,528 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,360 |
| NATO Countries | 0 | - | 4.98 | 275,781 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,911 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,168 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,292 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,478 |
| Official Cities in the UK | 0 | - | 4.89 | 280,574 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,155 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,219 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,321 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,424 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,485 |
| Countries with Megacities | 0 | - | 4.99 | 246,961 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,783 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,989 |
| World Capitals by Map | 0 | - | 5.00 | 283,243 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,948 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,387 |
| World's Busiest Airports | 0 | - | 4.94 | 210,460 |
| Country Chain | 0 | - | 4.96 | 215,741 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,414 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,838 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,639 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,948 |
| Independence from Whom | 0 | - | 4.99 | 209,702 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,996 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,650 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,609 |
| Countries with Six Letters | 0 | - | 4.93 | 210,372 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,601 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,481 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,426 |
| Flags of Oceania | 0 | - | 5.00 | 255,244 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,491 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,010 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,983 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,366 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,211 |
| Countries in their Native Language | 0 | - | 4.99 | 196,643 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,346 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,355 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,400 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,379 |
| Monarchies of the World | 0 | - | 4.94 | 166,628 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,556 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 190,763 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,412 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,050 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,202 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,088 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,929 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,912 |
| Countries That End in Y | 0 | - | 4.90 | 185,206 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,270 |
| Olympic Host Countries | 0 | - | 4.98 | 198,905 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,782 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,927 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,128 |
| Every European Country Shape | 0 | - | 4.96 | 200,200 |
| Countries of the Middle East | 0 | - | 4.96 | 198,945 |
| Countries by Official Language | 0 | - | 4.95 | 192,777 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,209 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,107 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,741 |
| Counties of Ireland | 0 | - | 4.92 | 193,098 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,452 |
| Countries Bordering India | 0 | - | 4.98 | 162,607 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,663 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,505 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,668 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,633 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,429 |
| European Cities by Clue | 0 | - | 4.70 | 88,809 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,952 |
| Islands by Country #2 | 0 | - | 4.80 | 76,995 |
