| Taken | Updated | Quiz |
|---|
| 252,814 | 2019-12-13 | Countries with the Longest Total Borders |
| 146,817 | 2019-04-03 | 10 Biggest European Countries by Area |
| 117,692 | 2019-04-18 | Top 10 European Countries by Coastline |
| 115,294 | 2018-11-23 | 10 Biggest Asian Countries by Area |
| 100,066 | 2018-11-01 | 10 Biggest American Countries by Area |
| 99,707 | 2018-09-20 | Countries with Multiple Big Islands |
| 81,609 | 2019-04-18 | Top 10 Asian Countries by Coastline |
| 66,736 | 2019-04-19 | Top 10 American Countries by Coastline |
| 43,028 | 2019-04-18 | Top 10 African Countries by Coastline |
| 22,265 | 2022-11-10 | U.S. States with the Longest International Borders |
| 5,208 | 2019-07-14 | Men's Tennis - Singles: Top Wimbledon Winners (Open Era) |
| 2,073 | 2018-10-06 | 100 Biggest Islands of the Earth |
| 1,921 | 2020-10-12 | Men's tennis (singles) - Most wins (Open Era) |
| 1,692 | 2020-10-11 | Men's tennis: Top Roland Garros Winners (Open Era) |
| 1,491 | 2017-01-28 | Women's tennis: Top Grand Slam Winners (Open Era) |
| 1,344 | 2018-01-14 | Third World countries (in terms of human development-HDI index) |
| 1,316 | 2016-07-09 | Women's tennis: Top Wimbledon Winners (Open Era) |
| 1,051 | 2020-10-11 | Men's tennis: Top Grand Slam Winners (Open Era) |
| 1,038 | 2020-02-02 | Men's tennis: Top Australian Open Winners (Open Era) |
| 992 | 2020-11-30 | Men's tennis: Most weeks at No1 |
| 878 | 2019-09-09 | Men's tennis: Top US Open Winners (Open Era) |
| 863 | 2019-01-28 | Women's tennis - Most weeks at No1 |
| 860 | 2020-04-30 | 50 Largest Countries In Order - No Initials |
| 818 | 2020-10-24 | Countries with Population over 100 million |
| 602 | 2015-06-06 | Women's tennis: Top Roland Garros Winners (Open Era) |
| 590 | 2016-01-23 | Borders from South Africa to Norway |
| 572 | 2019-10-18 | Most Populated Island Countries |
| 560 | 2016-04-22 | Four-word countries |
| 524 | 2018-05-23 | Women's tennis: Top Australian Open Winners (Open Era) |
| 498 | 2016-07-11 | Women's tennis: Top US Open Winners (Open Era) |
| 432 | 2016-06-23 | Countries Bordering Guatemala |
| 356 | 2019-01-27 | Balkan Countries by Area |
| 351 | 2016-04-21 | Three-word Countries |
| 328 | 2016-04-19 | Rivers by number of countries they pass through... |
| 326 | 2013-03-06 | Tolkien - Silmarillion - The 7 sons of Feanor |
| 321 | 2016-04-25 | Former USSR States not bordering Russia |
| 268 | 2020-09-06 | Lord Of The Rings - Kings of Rohan |
| 260 | 2018-06-27 | Borders from Senegal to Papua New Guinea |
| 248 | 2016-04-21 | Countries by percentage of the total area of their continent |
| 225 | 2016-01-12 | United States of America with the longest coastlines |
| 212 | 2017-02-20 | Countries Bordering Germany by Population |
| 209 | 2017-04-05 | J.R.R. Tolkien - The Three Rings' Bearers |
| 174 | 2019-10-09 | Countries with B and Z |
| 171 | 2016-01-23 | Countries by number of sizeable islands (over 1000 km2) |
| 169 | 2016-01-19 | Most Populous Mediterranean Islands |
| 156 | 2016-07-16 | Countries Bordering Republic of the Congo |
| 144 | 2016-04-24 | Countries bordering neighbours of China |
| 141 | 2016-01-23 | 10 Most Populous Provinces of China |
| 140 | 2016-05-06 | Countries Bigger than 1 Million Square Km |
| 140 | 2016-04-22 | 20 Largest Countries with continental land borders |
| 138 | 2015-12-27 | Himalayas' Highest Peaks |
| 135 | 2017-10-01 | 40 Largest Asian Islands |
| 132 | 2019-01-27 | North Hemisphere Countries |
| 118 | 2016-07-10 | Euro 2016 Scorers |
| 112 | 2017-02-20 | Countries Bordering Germany by Area |
| 110 | 2019-10-09 | Countries with W and E |
| 101 | 2016-04-26 | European Union Landlocked Countries |
| 99 | 2019-10-09 | Countries with W and I |
| 97 | 2016-04-22 | Middle East Countries by Area |
| 92 | 2013-02-27 | Lord of the rings (Appendix A) - Kings and Queens of Numenor |
| 89 | 2020-11-24 | Men's Tennis - Singles: Top 10 Ranking |
| 84 | 2016-01-11 | World's Biggest Lakes by Volume |
| 83 | 2020-04-30 | 50 Most Populous Countries In Order - No Initials |
| 81 | 2016-04-26 | Top 10 Oceanian Coastlines |
| 78 | 2016-05-06 | Countries Bigger than 1 Million Square Miles |
| 77 | 2016-01-12 | Most Populated Islands of the Americas |
| 72 | 2020-06-19 | World Capitals With Multiple A's |
| 69 | 2020-01-13 | Women's Tennis: Most Singles Titles (Open Era) |
| 68 | 2020-03-02 | Women's Tennis - Singles: Top 10 Ranking |
| 68 | 2016-01-11 | Most Populated African Islands |
| 68 | 2016-01-12 | Most Populated Asian Islands |
| 66 | 2020-10-11 | Men's Tennis: Most Singles Titles (Open Era) |
| 63 | 2016-01-21 | Greek Islands - Largest Islands of the Cyclades |
| 60 | 2016-01-21 | Countries with the Lowest Low Points |
| 57 | 2016-06-28 | Countries with 6-digit Population |
| 55 | 2019-11-04 | Men's Tennis (Singles) - Top Masters Series winners |
| 54 | 2016-04-20 | Three-word Capitals |
| 54 | 2019-02-17 | Countries "Met" More Than Once Along The Afro-Eurasian Coast |
| 54 | 2020-03-02 | Women's Tennis - Singles: Most Wins (Open Era) |
| 50 | 2016-04-18 | Largest Oceanian Islands |
| 49 | 2016-01-23 | South Hemisphere Countries |
| 47 | 2018-04-18 | Top 10 Countries With A Land Border By Coastline / Area Ratio |
| 47 | 2019-08-30 | Former Soviet Countries And Capitals |
| 46 | 2016-04-19 | Most Populated Oceanian Islands |
| 46 | 2020-05-17 | Capitals With The Most Letters |
| 43 | 2016-01-12 | Largest Islands of the Americas |
| 42 | 2016-01-22 | Countries along the American coast |
| 41 | 2020-01-25 | Presidential Primary Elections: States With Caucuses |
| 37 | 2016-01-23 | 10 Most Populous States of India |
| 35 | 2016-07-07 | Euro 2016 Top Scorers |
| 34 | 2019-02-17 | Countries That Appear Only Once Along the American Coast |
| 31 | 2020-06-14 | "-Stan" Countries by Population |
| 29 | 2020-06-14 | "-Stan" Countries by Area |
| 24 | 2020-05-17 | Prime Meridian Countries by Population |
| 20 | 2020-05-17 | Countries Bordering Both Brazil and Argentina |
| 20 | 2020-06-17 | Flags With Letters |
| 19 | 2020-06-16 | Greater Sunda Islands |
| 18 | 2020-05-31 | Multiple Ocean American Countries |
| 16 | 2016-01-24 | Umberto Eco's 7 Novels |
| 16 | 2020-05-16 | Tropic of Capricorn Countries by Area |
| 15 | 2020-05-17 | Prime Meridian Countries by Area |
| 15 | 2020-05-16 | Tropic of Cancer Countries by Population |
| 14 | 2020-05-16 | Tropic of Capricorn Countries by Population |
| 11 | 2020-05-31 | Top 10 Highest Volcanoes of the Earth |
| 10 | 2020-06-16 | Lesser Sunda Islands |
| 10 | 2020-05-16 | Tropic of Cancer Countries by Area |
| 7 | 2019-10-03 | Lord of the Rings - The Beacons of Gondor |
| 6 | 2020-05-03 | 10 Largest Lake Islands |
