| Island Countries | 0 | - | 4.99 | 707,548 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,172 |
| European Countries by Clue | 0 | - | 4.92 | 182,351 |
| Countries by Military Spending | 0 | - | 4.93 | 176,377 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,432 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,904,855 |
| US States Quiz | 0 | - | 5.00 | 16,696,680 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,586,949 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,392 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,296 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,529 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,800,379 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,799 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,065 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,678 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,048 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,031 |
| All Country Flags of the World | 0 | - | 5.00 | 3,600,567 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,679 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,503 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,378 |
| Countries of Africa | 0 | - | 5.00 | 2,507,158 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,820 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,337 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,039 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,004 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,737 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,259 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,751 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,683 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,705 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,528 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,120 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,282 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,591 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,747 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,091 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,364 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,249 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,263 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,549 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,208 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,680 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,089 |
| Random Country to Capital | 0 | - | 4.98 | 911,435 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,072 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,356 |
| Asia Map Quiz | 0 | - | 4.99 | 906,850 |
| Countries that Start with U | 0 | - | 4.97 | 899,818 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,082 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,426 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,561 |
| Counties of England | 0 | - | 4.97 | 789,045 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,819 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,167 |
| Top World Languages | 0 | - | 4.92 | 812,907 |
| Countries of South America | 0 | - | 5.00 | 914,408 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,048 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,738 |
| Countries that Start with K | 0 | - | 4.97 | 809,247 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,097 |
| US States with an Empty Map | 0 | - | 5.00 | 618,680 |
| Countries that Start with V | 0 | - | 4.98 | 604,985 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,710 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,145 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,366 |
| Countries that Start with D | 0 | - | 4.96 | 701,321 |
| Countries That Border Russia | 0 | - | 4.98 | 458,856 |
| One Border Countries | 0 | - | 4.98 | 464,269 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,756 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,160 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,746 |
| Countries with Four Letters | 0 | - | 4.99 | 418,440 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,566 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,722 |
| Countries Bordering France | 0 | - | 4.83 | 398,800 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,549 |
| Northernmost Countries | 0 | - | 4.99 | 357,631 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,273 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,060 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,983 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,226 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,067 |
| Landlocked Countries | 0 | - | 4.99 | 413,435 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,128 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,311 |
| Australia Map Quiz | 0 | - | 4.94 | 342,440 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,720 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,537 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,430 |
| Countries that Start with H | 0 | - | 4.96 | 597,780 |
| Countries that Start with J | 0 | - | 4.98 | 595,856 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,301 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,808 |
| "Land" Countries | 0 | - | 4.98 | 333,597 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,364 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,676 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,787 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,323 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,490 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,130 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,784 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,225 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,041 |
| Countries with Z | 0 | - | 4.98 | 287,827 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,070 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,870 |
| Flags of North and South America | 0 | - | 4.99 | 366,986 |
| EU Countries Quiz | 0 | - | 4.99 | 269,841 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,212 |
| Countries that Border China | 0 | - | 4.96 | 261,794 |
| French-Speaking Countries | 0 | - | 4.85 | 268,769 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,641 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,203 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,847 |
| Every Country Shape | 0 | - | 5.00 | 458,758 |
| Europe Capital to Country | 0 | - | 4.99 | 247,619 |
| Longest International Borders | 0 | - | 4.99 | 263,522 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,186 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,825 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,651 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,610 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,796 |
| Megacities on a World Map | 0 | - | 4.98 | 250,890 |
| World Currency Quiz | 0 | - | 4.92 | 298,329 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,311 |
| NATO Countries | 0 | - | 4.98 | 275,624 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,884 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,089 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,192 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,411 |
| Official Cities in the UK | 0 | - | 4.89 | 280,458 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,080 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,194 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,269 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,377 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,438 |
| Countries with Megacities | 0 | - | 4.99 | 246,698 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,746 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,895 |
| World Capitals by Map | 0 | - | 5.00 | 283,135 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,913 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,351 |
| World's Busiest Airports | 0 | - | 4.94 | 210,365 |
| Country Chain | 0 | - | 4.96 | 215,692 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,356 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,724 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,595 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,904 |
| Independence from Whom | 0 | - | 4.99 | 209,637 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,817 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,619 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,559 |
| Countries with Six Letters | 0 | - | 4.93 | 210,313 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,578 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,468 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,366 |
| Flags of Oceania | 0 | - | 5.00 | 255,086 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,433 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,923 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,953 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,336 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,087 |
| Countries in their Native Language | 0 | - | 4.99 | 196,596 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,289 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,275 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,369 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,338 |
| Monarchies of the World | 0 | - | 4.94 | 166,572 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,522 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,719 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,372 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,996 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,151 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,069 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,892 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,795 |
| Countries That End in Y | 0 | - | 4.90 | 185,192 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,223 |
| Olympic Host Countries | 0 | - | 4.98 | 198,865 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,692 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,901 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,090 |
| Every European Country Shape | 0 | - | 4.96 | 200,104 |
| Countries of the Middle East | 0 | - | 4.96 | 198,866 |
| Countries by Official Language | 0 | - | 4.95 | 192,733 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,186 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,059 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,718 |
| Counties of Ireland | 0 | - | 4.92 | 193,000 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,416 |
| Countries Bordering India | 0 | - | 4.98 | 162,585 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,642 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,491 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,630 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,616 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,419 |
| European Cities by Clue | 0 | - | 4.70 | 88,796 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,944 |
| Islands by Country #2 | 0 | - | 4.80 | 76,979 |
