1What is celebrated, mathematically, on 14 March and 22 July?2Which form of Chinese originated in Guangzhou?3Summoner’s Rift is the main battleground in what game?4What is advertised as “Scotland’s other national drink”?5Which archipelago is home to Norway’s polar bears?6Which activist was arrested in Rochester, NY, in 1872 for voting?7What was the first martial art to become an Olympic sport?8Which organ produces insulin?What links:9Dominic McLaughlin; Jamie Parker; Daniel Radcliffe?10Riviera’s second city; goddess of victory; Bill Bowerman and Phil Knight?11Star patterns; time travel in Hill Valley; piano; neo-Nazi code?12Lime Rickey; Arnold Palmer; Shirley Temple; Virgin Mary?13Political Wife (Sarah Vine); Politician (Rory Stewart) Professional Footballer (Paul Merson); Boy (Robert Webb)?14Ghost; Lordi; Pussy Riot; Sleep Token; Slipknot?15Ancelotti; Enrique; Guardiola; Happel; Heynckes; Hitzfeld; Mourinho?
1Pi (3/14 and 22/7).2Cantonese (from former name).3League of Legends.4Irn-Bru.5Svalbard (Spitsbergen).6Susan B Anthony (and 14 others).7Judo (1964).8Pancreas.9Played Harry Potter on stage and screen: forthcoming HBO series; original cast of HP and the Cursed Child; film series.10Nike: Nice, named after Nike; in Greek myth; founded Nike trainers.1188: 88 constellations recognised by the International Astronomical Union; DeLorean’s 88mph in Back to the Future; 88 keys; numerical code for “Heil Hitler”.12Mocktails.13How Not to be a … books.14Masked rock bands.15Managed two clubs to win European Cup/Champions League.