| Island Countries | 0 | - | 4.99 | 707,589 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,198 |
| European Countries by Clue | 0 | - | 4.92 | 182,363 |
| Countries by Military Spending | 0 | - | 4.93 | 176,393 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,473 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,913,643 |
| US States Quiz | 0 | - | 5.00 | 16,699,847 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,694 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,751 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,965 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,095 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,800,794 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,110 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,260 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,889 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,978 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,231 |
| All Country Flags of the World | 0 | - | 5.00 | 3,601,558 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,880 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,717 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,628 |
| Countries of Africa | 0 | - | 5.00 | 2,507,684 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,413 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,561 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,154 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,170 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,882 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,388 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,950 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,909 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,058 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,666 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,227 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,415 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,728 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,773 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,179 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,458 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,361 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,350 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,649 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,519 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,785 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,158 |
| Random Country to Capital | 0 | - | 4.98 | 911,540 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,145 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,565 |
| Asia Map Quiz | 0 | - | 4.99 | 906,969 |
| Countries that Start with U | 0 | - | 4.97 | 899,874 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,290 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,596 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,636 |
| Counties of England | 0 | - | 4.97 | 789,140 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,929 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,274 |
| Top World Languages | 0 | - | 4.92 | 813,060 |
| Countries of South America | 0 | - | 5.00 | 914,586 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,183 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,860 |
| Countries that Start with K | 0 | - | 4.97 | 809,327 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,117 |
| US States with an Empty Map | 0 | - | 5.00 | 618,803 |
| Countries that Start with V | 0 | - | 4.98 | 605,048 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,816 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,164 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,504 |
| Countries that Start with D | 0 | - | 4.96 | 701,441 |
| Countries That Border Russia | 0 | - | 4.98 | 458,898 |
| One Border Countries | 0 | - | 4.98 | 464,339 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,810 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,224 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,809 |
| Countries with Four Letters | 0 | - | 4.99 | 418,497 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,698 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,750 |
| Countries Bordering France | 0 | - | 4.83 | 399,025 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,593 |
| Northernmost Countries | 0 | - | 4.99 | 357,688 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,296 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,092 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,031 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,249 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,072 |
| Landlocked Countries | 0 | - | 4.99 | 413,530 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,190 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,350 |
| Australia Map Quiz | 0 | - | 4.94 | 342,465 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,767 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,586 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,495 |
| Countries that Start with H | 0 | - | 4.96 | 597,885 |
| Countries that Start with J | 0 | - | 4.98 | 595,943 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,353 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,847 |
| "Land" Countries | 0 | - | 4.98 | 333,630 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,379 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,684 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,876 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,407 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,522 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,293 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,819 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,268 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,080 |
| Countries with Z | 0 | - | 4.98 | 287,860 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,104 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,902 |
| Flags of North and South America | 0 | - | 4.99 | 367,162 |
| EU Countries Quiz | 0 | - | 4.99 | 269,895 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,257 |
| Countries that Border China | 0 | - | 4.96 | 261,810 |
| French-Speaking Countries | 0 | - | 4.85 | 268,789 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,669 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,224 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,907 |
| Every Country Shape | 0 | - | 5.00 | 458,881 |
| Europe Capital to Country | 0 | - | 4.99 | 247,780 |
| Longest International Borders | 0 | - | 4.99 | 263,533 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,271 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,847 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,819 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,647 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,815 |
| Megacities on a World Map | 0 | - | 4.98 | 250,929 |
| World Currency Quiz | 0 | - | 4.92 | 298,428 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,331 |
| NATO Countries | 0 | - | 4.98 | 275,706 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,892 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,130 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,244 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,444 |
| Official Cities in the UK | 0 | - | 4.89 | 280,514 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,114 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,208 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,299 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,399 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,460 |
| Countries with Megacities | 0 | - | 4.99 | 246,817 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,765 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,937 |
| World Capitals by Map | 0 | - | 5.00 | 283,181 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,928 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,370 |
| World's Busiest Airports | 0 | - | 4.94 | 210,406 |
| Country Chain | 0 | - | 4.96 | 215,715 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,388 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,783 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,619 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,927 |
| Independence from Whom | 0 | - | 4.99 | 209,668 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,921 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,633 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,578 |
| Countries with Six Letters | 0 | - | 4.93 | 210,342 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,588 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,473 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,392 |
| Flags of Oceania | 0 | - | 5.00 | 255,175 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,459 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,968 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,971 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,354 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,152 |
| Countries in their Native Language | 0 | - | 4.99 | 196,624 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,315 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,317 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,390 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,358 |
| Monarchies of the World | 0 | - | 4.94 | 166,592 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,539 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,742 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,392 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,026 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,170 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,077 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,910 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,853 |
| Countries That End in Y | 0 | - | 4.90 | 185,197 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,252 |
| Olympic Host Countries | 0 | - | 4.98 | 198,893 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,731 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,914 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,107 |
| Every European Country Shape | 0 | - | 4.96 | 200,150 |
| Countries of the Middle East | 0 | - | 4.96 | 198,903 |
| Countries by Official Language | 0 | - | 4.95 | 192,759 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,194 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,076 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,730 |
| Counties of Ireland | 0 | - | 4.92 | 193,057 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,432 |
| Countries Bordering India | 0 | - | 4.98 | 162,599 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,649 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,500 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,645 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,630 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,425 |
| European Cities by Clue | 0 | - | 4.70 | 88,800 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,948 |
| Islands by Country #2 | 0 | - | 4.80 | 76,986 |
