| Island Countries | 0 | - | 4.99 | 711,093 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,895 |
| European Countries by Clue | 0 | - | 4.92 | 183,821 |
| Countries by Military Spending | 0 | - | 4.93 | 178,371 |
| Countries by Three Words #2 | 0 | - | 4.97 | 203,232 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,593,748 |
| US States Quiz | 0 | - | 5.00 | 16,917,917 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,632,869 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,570 |
| World Capitals Quiz | 0 | - | 5.00 | 5,083,962 |
| Europe Map Quiz | 0 | - | 5.00 | 4,771,088 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,835,248 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,002 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,072 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,693 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,779,817 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,740 |
| All Country Flags of the World | 0 | - | 5.00 | 3,680,170 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,105,497 |
| Countries that Start with B | 0 | - | 4.95 | 2,298,071 |
| Countries that Start with A | 0 | - | 4.98 | 2,166,672 |
| Countries of Africa | 0 | - | 5.00 | 2,544,976 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,727 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,692,863 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,751 |
| Countries that Start with C | 0 | - | 4.96 | 1,825,021 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,837 |
| Countries that Start with S | 0 | - | 4.98 | 1,757,552 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,391 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,590,829 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,877,784 |
| Countries that Start with G | 0 | - | 4.97 | 1,505,926 |
| Countries that Start with M | 0 | - | 4.97 | 1,383,786 |
| Countries that Start with E | 0 | - | 4.95 | 1,379,661 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,736 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,952 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,261 |
| Countries that Start with P | 0 | - | 4.94 | 1,218,051 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,056 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,302 |
| Countries that Start with N | 0 | - | 4.93 | 1,119,657 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,552 |
| Countries that Start with L | 0 | - | 4.98 | 1,092,607 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 908,065 |
| Random Country to Capital | 0 | - | 4.98 | 922,805 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,273 |
| Biggest Cities in the United States | 0 | - | 4.94 | 981,116 |
| Asia Map Quiz | 0 | - | 4.99 | 919,648 |
| Countries that Start with U | 0 | - | 4.97 | 905,660 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,226 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,822 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,405 |
| Counties of England | 0 | - | 4.97 | 798,863 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,708 |
| Oceania Map Quiz | 0 | - | 4.98 | 651,464 |
| Top World Languages | 0 | - | 4.92 | 824,442 |
| Countries of South America | 0 | - | 5.00 | 927,561 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,726 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,752 |
| Countries that Start with K | 0 | - | 4.97 | 817,396 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,159 |
| US States with an Empty Map | 0 | - | 5.00 | 625,990 |
| Countries that Start with V | 0 | - | 4.98 | 610,146 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 507,863 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,393 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,868 |
| Countries that Start with D | 0 | - | 4.96 | 711,771 |
| Countries That Border Russia | 0 | - | 4.98 | 462,824 |
| One Border Countries | 0 | - | 4.98 | 469,939 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,391 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,567 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,391 |
| Countries with Four Letters | 0 | - | 4.99 | 423,340 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,128 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,551 |
| Countries Bordering France | 0 | - | 4.83 | 403,547 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,013 |
| Northernmost Countries | 0 | - | 4.99 | 362,022 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,037 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,545 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,678 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,802 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,152 |
| Landlocked Countries | 0 | - | 4.99 | 422,113 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,033 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,004 |
| Australia Map Quiz | 0 | - | 4.95 | 345,147 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,780 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,750 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,575 |
| Countries that Start with H | 0 | - | 4.96 | 606,249 |
| Countries that Start with J | 0 | - | 4.98 | 603,853 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,140 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,949 |
| "Land" Countries | 0 | - | 4.98 | 337,379 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,301 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 291,420 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,657 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,444 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,102 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,167 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,223 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,684 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,596 |
| Countries with Z | 0 | - | 4.98 | 291,474 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,406 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,220 |
| Flags of North and South America | 0 | - | 4.99 | 374,297 |
| EU Countries Quiz | 0 | - | 4.99 | 275,580 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,014 |
| Countries that Border China | 0 | - | 4.96 | 263,551 |
| French-Speaking Countries | 0 | - | 4.85 | 270,879 |
| Countries with Five Letters | 0 | - | 4.96 | 282,506 |
| United States Cities Map Quiz | 0 | - | 4.96 | 214,473 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,363 |
| Every Country Shape | 0 | - | 5.00 | 467,461 |
| Europe Capital to Country | 0 | - | 4.99 | 250,878 |
| Longest International Borders | 0 | - | 4.99 | 265,215 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,515 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,984 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,678 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,832 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,291 |
| Megacities on a World Map | 0 | - | 4.98 | 255,352 |
| World Currency Quiz | 0 | - | 4.92 | 304,206 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,116 |
| NATO Countries | 0 | - | 4.98 | 281,573 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,127 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,799 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,016 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,301 |
| Official Cities in the UK | 0 | - | 4.89 | 284,507 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,501 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,137 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,360 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,371 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,240 |
| Countries with Megacities | 0 | - | 4.99 | 264,629 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,758 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,336 |
| World Capitals by Map | 0 | - | 5.00 | 287,463 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,901 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,447 |
| World's Busiest Airports | 0 | - | 4.96 | 234,958 |
| Country Chain | 0 | - | 4.96 | 217,405 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,853 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,858 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,349 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,054 |
| Independence from Whom | 0 | - | 4.99 | 212,139 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,759 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,208 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,653 |
| Countries with Six Letters | 0 | - | 4.94 | 213,570 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,915 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,398 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,029 |
| Flags of Oceania | 0 | - | 5.00 | 260,518 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,830 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,708 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,848 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,596 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,805 |
| Countries in their Native Language | 0 | - | 4.99 | 199,068 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,354 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,801 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,536 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,925 |
| Monarchies of the World | 0 | - | 4.94 | 169,242 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,709 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,771 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,973 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,543 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,628 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,950 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,117 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,584 |
| Countries That End in Y | 0 | - | 4.91 | 185,875 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,807 |
| Olympic Host Countries | 0 | - | 4.98 | 201,115 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,234 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,643 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,200 |
| Every European Country Shape | 0 | - | 4.96 | 202,201 |
| Countries of the Middle East | 0 | - | 4.96 | 201,687 |
| Countries by Official Language | 0 | - | 4.95 | 195,281 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,139 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,662 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,776 |
| Counties of Ireland | 0 | - | 4.92 | 196,053 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,175 |
| Countries Bordering India | 0 | - | 4.98 | 163,560 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,757 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,970 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,157 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,690 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,243 |
| European Cities by Clue | 0 | - | 4.70 | 89,094 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,254 |
| Islands by Country #2 | 0 | - | 4.80 | 77,552 |
