Suzhou in one day

Hi, I am travelling to China in september with two friends and we are planning to spend one day in SZ. Do you think it's possible to see in one day the Humble Administrator Garden, Pingjiang Lu, the Twin pagodas, Pan Men and Tiger Hill? In that case, do we have to do it by public transportation or can it be done by walking? If it's not possible, which of them do you think are less worth? Thank you very much in advance!