| Island Countries | 0 | - | 4.99 | 712,984 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,854 |
| European Countries by Clue | 0 | - | 4.92 | 184,287 |
| Countries by Military Spending | 0 | - | 4.93 | 179,169 |
| Countries by Three Words #2 | 0 | - | 4.97 | 205,131 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,963,524 |
| US States Quiz | 0 | - | 5.00 | 17,019,344 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,659,240 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,307 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,221 |
| Europe Map Quiz | 0 | - | 5.00 | 4,792,628 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,852,902 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,859 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,656 |
| Random Capital to Country | 0 | - | 4.99 | 2,603,973 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,811,848 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,554 |
| All Country Flags of the World | 0 | - | 5.00 | 3,723,890 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,127,972 |
| Countries that Start with B | 0 | - | 4.95 | 2,308,816 |
| Countries that Start with A | 0 | - | 4.98 | 2,178,200 |
| Countries of Africa | 0 | - | 5.00 | 2,564,204 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,295 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,700,331 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,229 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,284 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,946 |
| Countries that Start with S | 0 | - | 4.98 | 1,764,731 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,931 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,090 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,892,785 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,110 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,521 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,542 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,014 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,424 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,712 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,225 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,084 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,159 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,053 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,016 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,990 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,201 |
| Random Country to Capital | 0 | - | 4.98 | 929,889 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,812 |
| Biggest Cities in the United States | 0 | - | 4.94 | 988,993 |
| Asia Map Quiz | 0 | - | 4.99 | 926,567 |
| Countries that Start with U | 0 | - | 4.97 | 909,171 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,367 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,093 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,080 |
| Counties of England | 0 | - | 4.97 | 804,088 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,271 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,197 |
| Top World Languages | 0 | - | 4.92 | 831,158 |
| Countries of South America | 0 | - | 5.00 | 934,160 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,971 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,904 |
| Countries that Start with K | 0 | - | 4.97 | 821,669 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,780 |
| US States with an Empty Map | 0 | - | 5.00 | 629,498 |
| Countries that Start with V | 0 | - | 4.98 | 612,513 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,869 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 414,386 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,760 |
| Countries that Start with D | 0 | - | 4.96 | 717,690 |
| Countries That Border Russia | 0 | - | 4.98 | 464,868 |
| One Border Countries | 0 | - | 4.98 | 472,544 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,809 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,565 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,328 |
| Countries with Four Letters | 0 | - | 4.99 | 426,400 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,003 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 454,050 |
| Countries Bordering France | 0 | - | 4.83 | 405,299 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,948 |
| Northernmost Countries | 0 | - | 4.99 | 364,568 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,546 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,025 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,188 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,869 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,251 |
| Landlocked Countries | 0 | - | 4.99 | 427,187 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,352 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,432 |
| Australia Map Quiz | 0 | - | 4.95 | 346,453 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,482 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,117 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,347 |
| Countries that Start with H | 0 | - | 4.96 | 610,466 |
| Countries that Start with J | 0 | - | 4.98 | 607,844 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,385 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,294 |
| "Land" Countries | 0 | - | 4.98 | 338,970 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,182 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,432 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,000 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,663 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,269 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,926 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,112 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,583 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,514 |
| Countries with Z | 0 | - | 4.98 | 292,978 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,922 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,505 |
| Flags of North and South America | 0 | - | 4.99 | 378,014 |
| EU Countries Quiz | 0 | - | 4.99 | 278,837 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,618 |
| Countries that Border China | 0 | - | 4.96 | 264,498 |
| French-Speaking Countries | 0 | - | 4.85 | 271,868 |
| Countries with Five Letters | 0 | - | 4.96 | 284,616 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,310 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,871 |
| Every Country Shape | 0 | - | 5.00 | 472,386 |
| Europe Capital to Country | 0 | - | 4.99 | 252,544 |
| Longest International Borders | 0 | - | 4.99 | 265,990 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,630 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,840 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,546 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,843 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,321 |
| Megacities on a World Map | 0 | - | 4.98 | 257,418 |
| World Currency Quiz | 0 | - | 4.92 | 307,488 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,499 |
| NATO Countries | 0 | - | 4.98 | 283,947 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,714 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,296 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,039 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,595 |
| Official Cities in the UK | 0 | - | 4.89 | 286,827 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,756 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,702 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,348 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,404 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,019 |
| Countries with Megacities | 0 | - | 4.99 | 267,801 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,863 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,896 |
| World Capitals by Map | 0 | - | 5.00 | 289,906 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,440 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,185 |
| World's Busiest Airports | 0 | - | 4.96 | 237,926 |
| Country Chain | 0 | - | 4.96 | 218,647 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,206 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,240 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,126 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,859 |
| Independence from Whom | 0 | - | 4.99 | 213,387 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,647 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,013 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,153 |
| Countries with Six Letters | 0 | - | 4.94 | 214,939 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,357 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,793 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,389 |
| Flags of Oceania | 0 | - | 5.00 | 263,397 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,067 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,527 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,303 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,628 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,560 |
| Countries in their Native Language | 0 | - | 4.99 | 199,948 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,616 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,920 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 171,045 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,218 |
| Monarchies of the World | 0 | - | 4.94 | 170,526 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,657 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,189 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,807 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,116 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,923 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,312 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,157 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,619 |
| Countries That End in Y | 0 | - | 4.91 | 186,171 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,948 |
| Olympic Host Countries | 0 | - | 4.98 | 202,183 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,909 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,335 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,796 |
| Every European Country Shape | 0 | - | 4.96 | 203,236 |
| Countries of the Middle East | 0 | - | 4.96 | 203,232 |
| Countries by Official Language | 0 | - | 4.95 | 196,203 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,938 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,299 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,197 |
| Counties of Ireland | 0 | - | 4.92 | 197,635 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,889 |
| Countries Bordering India | 0 | - | 4.98 | 163,878 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,432 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,216 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,459 |
| Countries with the Most Forest | 0 | - | 4.88 | 148,297 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,801 |
| European Cities by Clue | 0 | - | 4.70 | 89,211 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,451 |
| Islands by Country #2 | 0 | - | 4.80 | 77,949 |
