| Island Countries | 0 | - | 4.99 | 711,404 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,057 |
| European Countries by Clue | 0 | - | 4.92 | 183,915 |
| Countries by Military Spending | 0 | - | 4.93 | 178,574 |
| Countries by Three Words #2 | 0 | - | 4.97 | 203,565 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,660,664 |
| US States Quiz | 0 | - | 5.00 | 16,936,479 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,637,959 |
| United States Map Quiz | 0 | - | 4.98 | 4,165,202 |
| World Capitals Quiz | 0 | - | 5.00 | 5,089,345 |
| Europe Map Quiz | 0 | - | 5.00 | 4,775,127 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,838,504 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,386,117 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,541,460 |
| Random Capital to Country | 0 | - | 4.99 | 2,596,277 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,785,606 |
| Africa Map Quiz | 0 | - | 5.00 | 2,123,454 |
| All Country Flags of the World | 0 | - | 5.00 | 3,688,000 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,107,440 |
| Countries that Start with B | 0 | - | 4.95 | 2,299,986 |
| Countries that Start with A | 0 | - | 4.98 | 2,168,863 |
| Countries of Africa | 0 | - | 5.00 | 2,548,266 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,202 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,694,305 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,626 |
| Countries that Start with C | 0 | - | 4.96 | 1,826,569 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,409 |
| Countries that Start with S | 0 | - | 4.98 | 1,758,901 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,803 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,593,111 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,880,380 |
| Countries that Start with G | 0 | - | 4.97 | 1,507,234 |
| Countries that Start with M | 0 | - | 4.97 | 1,384,897 |
| Countries that Start with E | 0 | - | 4.95 | 1,380,958 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,953 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,243 |
| Countries that Start with I | 0 | - | 4.92 | 1,291,324 |
| Countries that Start with P | 0 | - | 4.94 | 1,219,016 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,103 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,963 |
| Countries that Start with N | 0 | - | 4.93 | 1,120,679 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,250,746 |
| Countries that Start with L | 0 | - | 4.98 | 1,093,632 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 908,455 |
| Random Country to Capital | 0 | - | 4.98 | 923,979 |
| Countries that Start with T | 0 | - | 4.90 | 1,012,010 |
| Biggest Cities in the United States | 0 | - | 4.94 | 982,404 |
| Asia Map Quiz | 0 | - | 4.99 | 921,178 |
| Countries that Start with U | 0 | - | 4.97 | 906,235 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,655 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,027,093 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,854 |
| Counties of England | 0 | - | 4.97 | 799,981 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,304 |
| Oceania Map Quiz | 0 | - | 4.98 | 656,232 |
| Top World Languages | 0 | - | 4.92 | 825,836 |
| Countries of South America | 0 | - | 5.00 | 928,730 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,819 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,707 |
| Countries that Start with K | 0 | - | 4.97 | 818,187 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,520 |
| US States with an Empty Map | 0 | - | 5.00 | 626,579 |
| Countries that Start with V | 0 | - | 4.98 | 610,588 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 508,349 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,552 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,906 |
| Countries that Start with D | 0 | - | 4.96 | 712,904 |
| Countries That Border Russia | 0 | - | 4.98 | 463,280 |
| One Border Countries | 0 | - | 4.98 | 470,437 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,642 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,198 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,958 |
| Countries with Four Letters | 0 | - | 4.99 | 423,875 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,467 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,991 |
| Countries Bordering France | 0 | - | 4.83 | 403,909 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,372 |
| Northernmost Countries | 0 | - | 4.99 | 362,462 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,366 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,825 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,972 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,974 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,373 |
| Landlocked Countries | 0 | - | 4.99 | 422,975 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,612 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,252 |
| Australia Map Quiz | 0 | - | 4.95 | 345,452 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,071 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,275 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,087 |
| Countries that Start with H | 0 | - | 4.96 | 607,055 |
| Countries that Start with J | 0 | - | 4.98 | 604,609 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,544 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,195 |
| "Land" Countries | 0 | - | 4.98 | 337,619 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,442 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 291,640 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,328 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,619 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,330 |
| Flags of Africa Quiz | 0 | - | 5.00 | 474,325 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,734 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,853 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 273,171 |
| Countries with Z | 0 | - | 4.98 | 291,712 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,658 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,423 |
| Flags of North and South America | 0 | - | 4.99 | 374,953 |
| EU Countries Quiz | 0 | - | 4.99 | 276,124 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,305 |
| Countries that Border China | 0 | - | 4.96 | 263,720 |
| French-Speaking Countries | 0 | - | 4.85 | 271,087 |
| Countries with Five Letters | 0 | - | 4.96 | 282,888 |
| United States Cities Map Quiz | 0 | - | 4.96 | 214,723 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,812 |
| Every Country Shape | 0 | - | 5.00 | 468,466 |
| Europe Capital to Country | 0 | - | 4.99 | 251,205 |
| Longest International Borders | 0 | - | 4.99 | 265,381 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 275,074 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,178 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,477 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,083 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,530 |
| Megacities on a World Map | 0 | - | 4.98 | 255,734 |
| World Currency Quiz | 0 | - | 4.92 | 304,869 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,297 |
| NATO Countries | 0 | - | 4.98 | 282,014 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,233 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,064 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,194 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,705 |
| Official Cities in the UK | 0 | - | 4.89 | 284,943 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,738 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,264 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,544 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,552 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,400 |
| Countries with Megacities | 0 | - | 4.99 | 265,273 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,993 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,611 |
| World Capitals by Map | 0 | - | 5.00 | 287,987 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,990 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,598 |
| World's Busiest Airports | 0 | - | 4.96 | 235,561 |
| Country Chain | 0 | - | 4.96 | 217,806 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,137 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,267 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,718 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,203 |
| Independence from Whom | 0 | - | 4.99 | 212,325 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,934 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,386 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,746 |
| Countries with Six Letters | 0 | - | 4.94 | 213,806 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,986 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,474 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,262 |
| Flags of Oceania | 0 | - | 5.00 | 261,034 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,037 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,867 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,935 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,718 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,243 |
| Countries in their Native Language | 0 | - | 4.99 | 199,236 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,492 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,994 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,619 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,053 |
| Monarchies of the World | 0 | - | 4.94 | 169,489 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,853 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,951 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,072 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,672 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,876 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,992 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,237 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,933 |
| Countries That End in Y | 0 | - | 4.91 | 185,938 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,007 |
| Olympic Host Countries | 0 | - | 4.98 | 201,310 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,553 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,843 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,309 |
| Every European Country Shape | 0 | - | 4.96 | 202,384 |
| Countries of the Middle East | 0 | - | 4.96 | 201,918 |
| Countries by Official Language | 0 | - | 4.95 | 195,461 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,222 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,802 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,856 |
| Counties of Ireland | 0 | - | 4.92 | 196,350 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,315 |
| Countries Bordering India | 0 | - | 4.98 | 163,632 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,817 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,012 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,266 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,752 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,292 |
| European Cities by Clue | 0 | - | 4.70 | 89,110 |
| Geography Analogies #1 | 0 | - | 4.69 | 96,054 |
| Islands by Country #2 | 0 | - | 4.80 | 77,635 |
