Need help with computer architecture problem.

Given a main memory with 1024 blocks that maps to a cache with 16 blocks

A. If the cache is direct mapped, into what line# in decimal does block# 257 map to? (Note: 257 is a decimal number)

B. If the cache is fully associative, into what cache line# in decimal does block# 257 map to?

C. If the cache is 2-way associative, into what cache set# in decimal does block# 257 map to?

D. If the cache is 2-way associative, can block# 0, block# 2, and block# 8 be in the cache at the same time? (Yes or No)

E. If the cache is 2-way associative, can block# 0, block# 16, and block# 32 be in the cache at the same time? (Yes or No)