Answer from cs61c-el (David Tung 16479725) for Question 1
53 = 0x00000035 = 00110101

Block offset = 01
Index = 101
Tag = 001

Memory location 53 is part of the 13th word; so the index in the cache is 13 modulo 8, which is 5.  It is the second byte in the word, so its block offset is 1, and the rest of its address is 1 (ie, it is the second word starting from 0 with an index of 5).