| Island Countries | 0 | - | 4.99 | 707,576 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,189 |
| European Countries by Clue | 0 | - | 4.92 | 182,360 |
| Countries by Military Spending | 0 | - | 4.93 | 176,384 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,456 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,910,816 |
| US States Quiz | 0 | - | 5.00 | 16,698,882 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,408 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,648 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,724 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,952 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,800,644 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,016 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,184 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,823 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,728 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,177 |
| All Country Flags of the World | 0 | - | 5.00 | 3,601,255 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,819 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,641 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,542 |
| Countries of Africa | 0 | - | 5.00 | 2,507,559 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,293 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,503 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,129 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,114 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,865 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,352 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,892 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,826 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,981 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,630 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,196 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,381 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,675 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,766 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,155 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,428 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,323 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,320 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,620 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,436 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,749 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,130 |
| Random Country to Capital | 0 | - | 4.98 | 911,510 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,126 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,511 |
| Asia Map Quiz | 0 | - | 4.99 | 906,941 |
| Countries that Start with U | 0 | - | 4.97 | 899,858 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,225 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,532 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,603 |
| Counties of England | 0 | - | 4.97 | 789,102 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,910 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,254 |
| Top World Languages | 0 | - | 4.92 | 813,009 |
| Countries of South America | 0 | - | 5.00 | 914,528 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,139 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,822 |
| Countries that Start with K | 0 | - | 4.97 | 809,304 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,111 |
| US States with an Empty Map | 0 | - | 5.00 | 618,776 |
| Countries that Start with V | 0 | - | 4.98 | 605,033 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,783 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,158 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,463 |
| Countries that Start with D | 0 | - | 4.96 | 701,408 |
| Countries That Border Russia | 0 | - | 4.98 | 458,887 |
| One Border Countries | 0 | - | 4.98 | 464,320 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,793 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,215 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,789 |
| Countries with Four Letters | 0 | - | 4.99 | 418,479 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,664 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,744 |
| Countries Bordering France | 0 | - | 4.83 | 398,954 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,582 |
| Northernmost Countries | 0 | - | 4.99 | 357,668 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,292 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,082 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,022 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,242 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,072 |
| Landlocked Countries | 0 | - | 4.99 | 413,499 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,175 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,334 |
| Australia Map Quiz | 0 | - | 4.94 | 342,451 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,752 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,567 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,476 |
| Countries that Start with H | 0 | - | 4.96 | 597,851 |
| Countries that Start with J | 0 | - | 4.98 | 595,921 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,336 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,838 |
| "Land" Countries | 0 | - | 4.98 | 333,619 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,373 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,682 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,857 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,381 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,518 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,258 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,807 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,254 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,064 |
| Countries with Z | 0 | - | 4.98 | 287,847 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,092 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,890 |
| Flags of North and South America | 0 | - | 4.99 | 367,124 |
| EU Countries Quiz | 0 | - | 4.99 | 269,883 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,239 |
| Countries that Border China | 0 | - | 4.96 | 261,806 |
| French-Speaking Countries | 0 | - | 4.85 | 268,778 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,665 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,214 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,893 |
| Every Country Shape | 0 | - | 5.00 | 458,826 |
| Europe Capital to Country | 0 | - | 4.99 | 247,726 |
| Longest International Borders | 0 | - | 4.99 | 263,531 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,240 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,842 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,765 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,630 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,812 |
| Megacities on a World Map | 0 | - | 4.98 | 250,918 |
| World Currency Quiz | 0 | - | 4.92 | 298,401 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,328 |
| NATO Countries | 0 | - | 4.98 | 275,676 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,890 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,119 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,231 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,435 |
| Official Cities in the UK | 0 | - | 4.89 | 280,500 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,105 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,203 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,295 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,387 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,452 |
| Countries with Megacities | 0 | - | 4.99 | 246,782 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,756 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,917 |
| World Capitals by Map | 0 | - | 5.00 | 283,168 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,922 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,363 |
| World's Busiest Airports | 0 | - | 4.94 | 210,403 |
| Country Chain | 0 | - | 4.96 | 215,708 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,380 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,767 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,609 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,920 |
| Independence from Whom | 0 | - | 4.99 | 209,659 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,879 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,628 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,571 |
| Countries with Six Letters | 0 | - | 4.93 | 210,335 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,585 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,473 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,384 |
| Flags of Oceania | 0 | - | 5.00 | 255,159 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,450 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,948 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,964 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,345 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,131 |
| Countries in their Native Language | 0 | - | 4.99 | 196,615 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,309 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,305 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,382 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,352 |
| Monarchies of the World | 0 | - | 4.94 | 166,585 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,534 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,735 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,387 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,020 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,165 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,076 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,903 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,835 |
| Countries That End in Y | 0 | - | 4.90 | 185,196 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,242 |
| Olympic Host Countries | 0 | - | 4.98 | 198,885 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,721 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,908 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,103 |
| Every European Country Shape | 0 | - | 4.96 | 200,136 |
| Countries of the Middle East | 0 | - | 4.96 | 198,892 |
| Countries by Official Language | 0 | - | 4.95 | 192,751 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,192 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,071 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,726 |
| Counties of Ireland | 0 | - | 4.92 | 193,047 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,428 |
| Countries Bordering India | 0 | - | 4.98 | 162,593 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,646 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,493 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,638 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,625 |
| 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 | 94,945 |
| Islands by Country #2 | 0 | - | 4.80 | 76,983 |
