The world&rsquos favourite storyteller turns 100 and 2016 will therefore be a rollickingly, wickedly irreverent period of irresistible madness all year long in the UK. Here&rsquos a sampling of the surpris&shyes in store Dahl, the spy, fighter pilot, inventor and historian of chocolate (yes, he was, too) becomes a magical journey through The Won&shydercrump World of Roald Dahl at Southbank Centre (on till 3 July). Cheshire&rsquos Tatton Park has themed Roald Dahl trails, special shows of outdoor theatre, cinema based on his works and much more (on till 2 October). The Cardiff Children&rsquos Literature Festival (16-24 April) pays homage to him with quirky creativity (lots more at roalddahl.com/roalddahl100).