| Island Countries | 0 | - | 4.99 | 707,383 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,093 |
| European Countries by Clue | 0 | - | 4.92 | 182,323 |
| Countries by Military Spending | 0 | - | 4.93 | 176,316 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,271 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,876,536 |
| US States Quiz | 0 | - | 5.00 | 16,687,007 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,585,204 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,364 |
| World Capitals Quiz | 0 | - | 5.00 | 5,028,001 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,824 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,798,807 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,827 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,292 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,958 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,124 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,309 |
| All Country Flags of the World | 0 | - | 5.00 | 3,597,167 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,953 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,701 |
| Countries that Start with A | 0 | - | 4.97 | 2,145,480 |
| Countries of Africa | 0 | - | 5.00 | 2,505,739 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,601 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,654 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,649 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,351 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,342 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,693 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,085 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,836 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,349 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,973 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,671 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,753 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,022 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,595 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,626 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,981 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,767 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,926 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,151 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,090 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,295 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,788 |
| Random Country to Capital | 0 | - | 4.98 | 910,952 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,726 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,695 |
| Asia Map Quiz | 0 | - | 4.99 | 906,311 |
| Countries that Start with U | 0 | - | 4.97 | 899,575 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,245 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,882 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,319 |
| Counties of England | 0 | - | 4.97 | 788,653 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,572 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,784 |
| Top World Languages | 0 | - | 4.92 | 812,408 |
| Countries of South America | 0 | - | 5.00 | 913,880 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,710 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,186 |
| Countries that Start with K | 0 | - | 4.96 | 808,906 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,002 |
| US States with an Empty Map | 0 | - | 5.00 | 618,379 |
| Countries that Start with V | 0 | - | 4.98 | 604,756 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,421 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,076 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,906 |
| Countries that Start with D | 0 | - | 4.96 | 700,886 |
| Countries That Border Russia | 0 | - | 4.98 | 458,685 |
| One Border Countries | 0 | - | 4.98 | 463,864 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,543 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,984 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,275 |
| Countries with Four Letters | 0 | - | 4.99 | 418,247 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,301 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,565 |
| Countries Bordering France | 0 | - | 4.85 | 397,875 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,385 |
| Northernmost Countries | 0 | - | 4.99 | 357,426 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,154 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,939 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,839 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,147 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,002 |
| Landlocked Countries | 0 | - | 4.99 | 413,134 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,968 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,174 |
| Australia Map Quiz | 0 | - | 4.94 | 342,330 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,593 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,402 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,184 |
| Countries that Start with H | 0 | - | 4.96 | 597,394 |
| Countries that Start with J | 0 | - | 4.98 | 595,462 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,125 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,636 |
| "Land" Countries | 0 | - | 4.98 | 333,500 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,294 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,623 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,511 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,098 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,252 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,666 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,655 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,121 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,873 |
| Countries with Z | 0 | - | 4.98 | 287,726 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,969 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,771 |
| Flags of North and South America | 0 | - | 4.99 | 366,286 |
| EU Countries Quiz | 0 | - | 4.99 | 269,630 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,056 |
| Countries that Border China | 0 | - | 4.96 | 261,742 |
| French-Speaking Countries | 0 | - | 4.85 | 268,668 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,552 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,128 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,662 |
| Every Country Shape | 0 | - | 5.00 | 458,333 |
| Europe Capital to Country | 0 | - | 4.99 | 247,382 |
| Longest International Borders | 0 | - | 4.99 | 263,432 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,913 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,755 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,326 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,524 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,727 |
| Megacities on a World Map | 0 | - | 4.98 | 250,696 |
| World Currency Quiz | 0 | - | 4.92 | 298,046 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,223 |
| NATO Countries | 0 | - | 4.98 | 275,363 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,837 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,951 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,025 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,322 |
| Official Cities in the UK | 0 | - | 4.89 | 280,309 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,964 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,145 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,185 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,302 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,366 |
| Countries with Megacities | 0 | - | 4.99 | 246,393 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,683 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,793 |
| World Capitals by Map | 0 | - | 5.00 | 282,983 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,879 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,298 |
| World's Busiest Airports | 0 | - | 4.94 | 210,204 |
| Country Chain | 0 | - | 4.96 | 215,619 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,291 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,509 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,534 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,835 |
| Independence from Whom | 0 | - | 4.99 | 209,552 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,521 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,553 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,456 |
| Countries with Six Letters | 0 | - | 4.93 | 210,250 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,524 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,434 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,248 |
| Flags of Oceania | 0 | - | 5.00 | 254,853 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,343 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,372 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,913 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,280 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,881 |
| Countries in their Native Language | 0 | - | 4.99 | 196,525 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,207 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,166 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,333 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,240 |
| Monarchies of the World | 0 | - | 4.94 | 166,465 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,466 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,644 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,305 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,905 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,064 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,047 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,828 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,663 |
| Countries That End in Y | 0 | - | 4.90 | 185,172 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,149 |
| Olympic Host Countries | 0 | - | 4.98 | 198,806 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,584 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,871 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,042 |
| Every European Country Shape | 0 | - | 4.96 | 199,965 |
| Countries of the Middle East | 0 | - | 4.96 | 198,781 |
| Countries by Official Language | 0 | - | 4.95 | 192,657 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,154 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 198,997 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,667 |
| Counties of Ireland | 0 | - | 4.92 | 192,890 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,356 |
| Countries Bordering India | 0 | - | 4.98 | 162,557 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,606 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,470 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,580 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,575 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,392 |
| European Cities by Clue | 0 | - | 4.70 | 88,780 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,934 |
| Islands by Country #2 | 0 | - | 4.80 | 76,959 |
