| Island Countries | 0 | - | 4.99 | 708,039 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,463 |
| European Countries by Clue | 0 | - | 4.92 | 182,484 |
| Countries by Military Spending | 0 | - | 4.93 | 176,586 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,967 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,006,258 |
| US States Quiz | 0 | - | 5.00 | 16,729,044 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,593,557 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,178 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,913 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,451 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,805,290 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,262 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,118 |
| Random Capital to Country | 0 | - | 4.99 | 2,580,119 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,504 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,340 |
| All Country Flags of the World | 0 | - | 5.00 | 3,612,275 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,090,282 |
| Countries that Start with B | 0 | - | 4.95 | 2,282,123 |
| Countries that Start with A | 0 | - | 4.98 | 2,149,409 |
| Countries of Africa | 0 | - | 5.00 | 2,512,515 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,074 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,679,508 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,299 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,159 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,007 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,179 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,909 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,537 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,852,068 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,421 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,655 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,025 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,235 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,152 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,507 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,682 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,914 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,271 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,965 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,500 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,072 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,721 |
| Random Country to Capital | 0 | - | 4.98 | 912,894 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,077 |
| Biggest Cities in the United States | 0 | - | 4.93 | 968,470 |
| Asia Map Quiz | 0 | - | 4.99 | 908,303 |
| Countries that Start with U | 0 | - | 4.97 | 900,632 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,750 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,013,808 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,276 |
| Counties of England | 0 | - | 4.97 | 790,366 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,654 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,387 |
| Top World Languages | 0 | - | 4.92 | 814,566 |
| Countries of South America | 0 | - | 5.00 | 916,699 |
| Africa Capitals Quiz | 0 | - | 4.99 | 731,594 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,134 |
| Countries that Start with K | 0 | - | 4.97 | 810,339 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,597 |
| US States with an Empty Map | 0 | - | 5.00 | 619,708 |
| Countries that Start with V | 0 | - | 4.98 | 605,730 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,679 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,467 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,797 |
| Countries that Start with D | 0 | - | 4.96 | 702,797 |
| Countries That Border Russia | 0 | - | 4.98 | 459,555 |
| One Border Countries | 0 | - | 4.98 | 465,158 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,174 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,914 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,389 |
| Countries with Four Letters | 0 | - | 4.99 | 419,151 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,278 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,233 |
| Countries Bordering France | 0 | - | 4.83 | 400,252 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,092 |
| Northernmost Countries | 0 | - | 4.99 | 358,327 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,657 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,512 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,411 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,534 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,313 |
| Landlocked Countries | 0 | - | 4.99 | 414,692 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,681 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,721 |
| Australia Map Quiz | 0 | - | 4.94 | 342,776 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,213 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,285 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,030 |
| Countries that Start with H | 0 | - | 4.96 | 598,955 |
| Countries that Start with J | 0 | - | 4.98 | 597,022 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,895 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,213 |
| "Land" Countries | 0 | - | 4.98 | 333,931 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,603 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,843 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,645 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,739 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,877 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,527 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,238 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,562 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,561 |
| Countries with Z | 0 | - | 4.98 | 288,109 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,450 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,346 |
| Flags of North and South America | 0 | - | 4.99 | 368,398 |
| EU Countries Quiz | 0 | - | 4.99 | 270,564 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,708 |
| Countries that Border China | 0 | - | 4.96 | 262,026 |
| French-Speaking Countries | 0 | - | 4.85 | 269,108 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,910 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,366 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,446 |
| Every Country Shape | 0 | - | 5.00 | 460,019 |
| Europe Capital to Country | 0 | - | 4.99 | 248,277 |
| Longest International Borders | 0 | - | 4.99 | 263,990 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,039 |
| Biggest Cities by Language | 0 | - | 4.96 | 241,864 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,268 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,925 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,015 |
| Megacities on a World Map | 0 | - | 4.98 | 251,465 |
| World Currency Quiz | 0 | - | 4.92 | 299,216 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,632 |
| NATO Countries | 0 | - | 4.98 | 276,803 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,047 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,484 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,515 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,703 |
| Official Cities in the UK | 0 | - | 4.89 | 281,076 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,403 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,363 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,844 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,619 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,663 |
| Countries with Megacities | 0 | - | 4.99 | 247,803 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,026 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,245 |
| World Capitals by Map | 0 | - | 5.00 | 283,964 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,041 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,927 |
| World's Busiest Airports | 0 | - | 4.94 | 213,444 |
| Country Chain | 0 | - | 4.96 | 215,947 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,648 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,467 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,832 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,182 |
| Independence from Whom | 0 | - | 4.99 | 209,974 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,763 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,788 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,734 |
| Countries with Six Letters | 0 | - | 4.93 | 210,583 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,719 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,586 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,719 |
| Flags of Oceania | 0 | - | 5.00 | 255,887 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,762 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,255 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,086 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,494 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,806 |
| Countries in their Native Language | 0 | - | 4.99 | 196,856 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,534 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,636 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,526 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,538 |
| Monarchies of the World | 0 | - | 4.94 | 166,919 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,688 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,011 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,591 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,191 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,565 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,167 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,086 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,409 |
| Countries That End in Y | 0 | - | 4.90 | 185,261 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,506 |
| Olympic Host Countries | 0 | - | 4.98 | 199,087 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,121 |
| Regions of Countries #1 | 0 | - | 4.97 | 159,010 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,281 |
| Every European Country Shape | 0 | - | 4.96 | 200,421 |
| Countries of the Middle East | 0 | - | 4.96 | 199,258 |
| Countries by Official Language | 0 | - | 4.95 | 192,998 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,335 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,516 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,859 |
| Counties of Ireland | 0 | - | 4.92 | 193,416 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,599 |
| Countries Bordering India | 0 | - | 4.98 | 162,752 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,755 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,559 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,794 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,718 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,484 |
| European Cities by Clue | 0 | - | 4.70 | 88,853 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,992 |
| Islands by Country #2 | 0 | - | 4.80 | 77,064 |
