| Island Countries | 0 | - | 4.99 | 712,716 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,707 |
| European Countries by Clue | 0 | - | 4.92 | 184,199 |
| Countries by Military Spending | 0 | - | 4.93 | 179,054 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,845 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,912,099 |
| US States Quiz | 0 | - | 5.00 | 17,004,431 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,655,345 |
| United States Map Quiz | 0 | - | 4.98 | 4,172,103 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,892 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,755 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,850,382 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,972 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,593 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,430 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,225 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,382 |
| All Country Flags of the World | 0 | - | 5.00 | 3,717,563 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,126,184 |
| Countries that Start with B | 0 | - | 4.95 | 2,307,322 |
| Countries that Start with A | 0 | - | 4.98 | 2,176,612 |
| Countries of Africa | 0 | - | 5.00 | 2,561,606 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,789 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,699,403 |
| South America Map Quiz | 0 | - | 5.00 | 1,557,127 |
| Countries that Start with C | 0 | - | 4.96 | 1,832,128 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,520 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,738 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,808 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,499 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,683 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,112 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,722 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,624 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,244 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,137 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,998 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,459 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,246 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,548 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,313 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,188 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,247 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,903 |
| Random Country to Capital | 0 | - | 4.98 | 928,917 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,240 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,735 |
| Asia Map Quiz | 0 | - | 4.99 | 925,674 |
| Countries that Start with U | 0 | - | 4.97 | 908,738 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,261 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,148 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,674 |
| Counties of England | 0 | - | 4.97 | 803,358 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,822 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,734 |
| Top World Languages | 0 | - | 4.92 | 830,361 |
| Countries of South America | 0 | - | 5.00 | 933,270 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,242 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,206 |
| Countries that Start with K | 0 | - | 4.97 | 821,100 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,563 |
| US States with an Empty Map | 0 | - | 5.00 | 629,001 |
| Countries that Start with V | 0 | - | 4.98 | 612,199 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,398 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,214 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,884 |
| Countries that Start with D | 0 | - | 4.96 | 716,882 |
| Countries That Border Russia | 0 | - | 4.98 | 464,626 |
| One Border Countries | 0 | - | 4.98 | 472,171 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,633 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,174 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,942 |
| Countries with Four Letters | 0 | - | 4.99 | 426,035 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,755 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,756 |
| Countries Bordering France | 0 | - | 4.83 | 405,044 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,667 |
| Northernmost Countries | 0 | - | 4.99 | 364,224 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,340 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,819 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,973 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,738 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,123 |
| Landlocked Countries | 0 | - | 4.99 | 426,401 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,072 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,234 |
| Australia Map Quiz | 0 | - | 4.95 | 346,268 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,197 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,833 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,946 |
| Countries that Start with H | 0 | - | 4.96 | 609,909 |
| Countries that Start with J | 0 | - | 4.98 | 607,287 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,062 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,054 |
| "Land" Countries | 0 | - | 4.98 | 338,510 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,054 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,301 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,494 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,526 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,140 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,139 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,900 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,455 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,092 |
| Countries with Z | 0 | - | 4.98 | 292,573 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,749 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,323 |
| Flags of North and South America | 0 | - | 4.99 | 377,353 |
| EU Countries Quiz | 0 | - | 4.99 | 278,164 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,367 |
| Countries that Border China | 0 | - | 4.96 | 264,370 |
| French-Speaking Countries | 0 | - | 4.85 | 271,747 |
| Countries with Five Letters | 0 | - | 4.96 | 284,139 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,224 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,572 |
| Every Country Shape | 0 | - | 5.00 | 471,572 |
| Europe Capital to Country | 0 | - | 4.99 | 252,243 |
| Longest International Borders | 0 | - | 4.99 | 265,878 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,229 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,736 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,869 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,703 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,192 |
| Megacities on a World Map | 0 | - | 4.98 | 257,123 |
| World Currency Quiz | 0 | - | 4.92 | 307,037 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,354 |
| NATO Countries | 0 | - | 4.98 | 283,625 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,626 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,077 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,900 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,453 |
| Official Cities in the UK | 0 | - | 4.89 | 286,485 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,580 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,622 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,201 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,232 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,885 |
| Countries with Megacities | 0 | - | 4.99 | 267,388 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,715 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,690 |
| World Capitals by Map | 0 | - | 5.00 | 289,607 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,361 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,040 |
| World's Busiest Airports | 0 | - | 4.96 | 237,540 |
| Country Chain | 0 | - | 4.96 | 218,523 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,017 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,890 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,862 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,744 |
| Independence from Whom | 0 | - | 4.99 | 213,189 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,514 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,925 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,070 |
| Countries with Six Letters | 0 | - | 4.94 | 214,604 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,290 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,746 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,211 |
| Flags of Oceania | 0 | - | 5.00 | 262,970 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,873 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,423 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,237 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,532 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,186 |
| Countries in their Native Language | 0 | - | 4.99 | 199,819 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,458 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,760 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,968 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,519 |
| Monarchies of the World | 0 | - | 4.94 | 170,330 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,370 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,041 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,701 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,036 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,705 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,265 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,058 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,369 |
| Countries That End in Y | 0 | - | 4.91 | 186,108 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,809 |
| Olympic Host Countries | 0 | - | 4.98 | 202,048 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,700 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,282 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,717 |
| Every European Country Shape | 0 | - | 4.96 | 203,092 |
| Countries of the Middle East | 0 | - | 4.96 | 203,043 |
| Countries by Official Language | 0 | - | 4.95 | 196,091 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,859 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,199 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,152 |
| Counties of Ireland | 0 | - | 4.92 | 197,409 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,805 |
| Countries Bordering India | 0 | - | 4.98 | 163,836 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,339 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,169 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,336 |
| Countries with the Most Forest | 0 | - | 4.87 | 148,141 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,741 |
| European Cities by Clue | 0 | - | 4.70 | 89,184 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,424 |
| Islands by Country #2 | 0 | - | 4.80 | 77,912 |
