| Island Countries | 0 | - | 4.99 | 708,352 |
| Countries by Three Words #1 | 0 | - | 4.95 | 263,992 |
| European Countries by Clue | 0 | - | 4.92 | 182,799 |
| Countries by Military Spending | 0 | - | 4.93 | 176,739 |
| Countries by Three Words #2 | 0 | - | 4.97 | 200,322 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,062,778 |
| US States Quiz | 0 | - | 5.00 | 16,748,400 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,597,394 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,744 |
| World Capitals Quiz | 0 | - | 5.00 | 5,043,139 |
| Europe Map Quiz | 0 | - | 5.00 | 4,740,152 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,808,454 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,257 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,529,334 |
| Random Capital to Country | 0 | - | 4.99 | 2,581,810 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,731,440 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,118 |
| All Country Flags of the World | 0 | - | 5.00 | 3,618,462 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,092,079 |
| Countries that Start with B | 0 | - | 4.95 | 2,283,646 |
| Countries that Start with A | 0 | - | 4.98 | 2,151,081 |
| Countries of Africa | 0 | - | 5.00 | 2,515,703 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,794 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,711 |
| South America Map Quiz | 0 | - | 5.00 | 1,543,098 |
| Countries that Start with C | 0 | - | 4.96 | 1,813,320 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,251 |
| Countries that Start with S | 0 | - | 4.98 | 1,747,224 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,037 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,575,067 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,574 |
| Countries that Start with G | 0 | - | 4.97 | 1,495,462 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,509 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,992 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,002 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,399 |
| Countries that Start with I | 0 | - | 4.92 | 1,282,313 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,424 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,799 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,833 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,777 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,231,510 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,860 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,042 |
| Random Country to Capital | 0 | - | 4.98 | 913,647 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,662 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,797 |
| Asia Map Quiz | 0 | - | 4.99 | 909,195 |
| Countries that Start with U | 0 | - | 4.97 | 901,105 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,345 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,015,226 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,684 |
| Counties of England | 0 | - | 4.97 | 791,303 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,104 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,185 |
| Top World Languages | 0 | - | 4.92 | 815,551 |
| Countries of South America | 0 | - | 5.00 | 917,910 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,297 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,875 |
| Countries that Start with K | 0 | - | 4.97 | 810,953 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,870 |
| US States with an Empty Map | 0 | - | 5.00 | 620,382 |
| Countries that Start with V | 0 | - | 4.98 | 606,147 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,209 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,641 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,579 |
| Countries that Start with D | 0 | - | 4.96 | 703,636 |
| Countries That Border Russia | 0 | - | 4.98 | 459,877 |
| One Border Countries | 0 | - | 4.98 | 465,757 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,406 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,464 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,818 |
| Countries with Four Letters | 0 | - | 4.99 | 419,583 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,643 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,487 |
| Countries Bordering France | 0 | - | 4.83 | 400,644 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,407 |
| Northernmost Countries | 0 | - | 4.99 | 358,734 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,875 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,820 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,635 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,777 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,437 |
| Landlocked Countries | 0 | - | 4.99 | 415,423 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,991 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,976 |
| Australia Map Quiz | 0 | - | 4.94 | 342,944 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,425 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,760 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,955 |
| Countries that Start with H | 0 | - | 4.96 | 599,673 |
| Countries that Start with J | 0 | - | 4.98 | 597,705 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,193 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,531 |
| "Land" Countries | 0 | - | 4.98 | 334,113 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,734 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 286,959 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,100 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,924 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,117 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,427 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,870 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,674 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 266,731 |
| Countries with Z | 0 | - | 4.98 | 288,270 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,741 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,600 |
| Flags of North and South America | 0 | - | 4.99 | 369,069 |
| EU Countries Quiz | 0 | - | 4.99 | 270,959 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,961 |
| Countries that Border China | 0 | - | 4.96 | 262,180 |
| French-Speaking Countries | 0 | - | 4.85 | 269,318 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,055 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,473 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,803 |
| Every Country Shape | 0 | - | 5.00 | 460,633 |
| Europe Capital to Country | 0 | - | 4.99 | 248,512 |
| Longest International Borders | 0 | - | 4.99 | 264,125 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,546 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,429 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,874 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,150 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,114 |
| Megacities on a World Map | 0 | - | 4.98 | 251,820 |
| World Currency Quiz | 0 | - | 4.92 | 299,671 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,793 |
| NATO Countries | 0 | - | 4.98 | 277,302 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,136 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,707 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,680 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,848 |
| Official Cities in the UK | 0 | - | 4.89 | 281,432 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,600 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,440 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,996 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,776 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,780 |
| Countries with Megacities | 0 | - | 4.99 | 248,222 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,283 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,444 |
| World Capitals by Map | 0 | - | 5.00 | 284,292 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,139 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,054 |
| World's Busiest Airports | 0 | - | 4.95 | 215,865 |
| Country Chain | 0 | - | 4.96 | 216,129 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,874 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,736 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,975 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,297 |
| Independence from Whom | 0 | - | 4.99 | 210,174 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,016 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,886 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,919 |
| Countries with Six Letters | 0 | - | 4.93 | 210,728 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,797 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,653 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,920 |
| Flags of Oceania | 0 | - | 5.00 | 256,255 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,971 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,461 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,162 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,565 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,212 |
| Countries in their Native Language | 0 | - | 4.99 | 197,031 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,695 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,108 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,590 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,633 |
| Monarchies of the World | 0 | - | 4.94 | 167,111 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,776 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,144 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,728 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,263 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,756 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,217 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,200 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,760 |
| Countries That End in Y | 0 | - | 4.90 | 185,294 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,719 |
| Olympic Host Countries | 0 | - | 4.98 | 199,249 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,359 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,070 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,370 |
| Every European Country Shape | 0 | - | 4.96 | 200,593 |
| Countries of the Middle East | 0 | - | 4.96 | 199,507 |
| Countries by Official Language | 0 | - | 4.95 | 193,200 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,428 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,652 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,923 |
| Counties of Ireland | 0 | - | 4.92 | 193,669 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,725 |
| Countries Bordering India | 0 | - | 4.98 | 163,104 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,836 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,586 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,889 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,785 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,550 |
| European Cities by Clue | 0 | - | 4.70 | 88,887 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,013 |
| Islands by Country #2 | 0 | - | 4.80 | 77,119 |
