31. Think of a famous fishfinger brand with an icecream and sponge dessert after.( very 1970's)
40. Food stuff is flowers on a tree and what bees make. The brand sounds the same as what someone in a boat would do with oars.
Many thanks for the clues to the anagrams.
Canlock: if you have just those 4 left you have done well; I'm still looking for 4,9,51,96,101,102,103,104,106,109,112,114,119,120,121,123,128.
I have a possible for 51 but its relying on an error in the question.