Skewered tiger prawns with mango and chilli salad recipe

1 clove garlic, crushed
1tbsp sweet chilli sauce
1tbsp olive oil
juice of 1 lime
2tbsp mint leaves
12 large uncooked tiger prawns
½ cucumber
1 bag mixed salad leaves
200g (7oz) cherry or baby plum tomatoes, halved
1 large mango, peeled and very thinly sliced
