This is a rebus puzzle, where every image is converted to its name, then the letters are added and subtracted accordingly to get new words:
- CUBA + CONE – BACON = CU(BACON)E = CUE
- CASHEW – CASH + E = (CASH)EWE = EWE
- REBUS – R – BUS = (R)E(BUS) = E
- ART + EAR – TEA = AR(TEA)R = ARR
- WHINNY – INN = WH(INN)Y = WHY
Each line gives a word which sounds like a letter, spelling out the answer QUERY.