Find Days Remaining with many criteria's

Tell me
1) if D4 > A2 and D4>B2 What your result would be
2) if D4 > A2 and D4<B2 What your result would be
3) if D4 < A3 and D4<B2 What your result would be
4) if D4 < A3 and D4>B2 What your result would be
5) if D4 = A3 and D4=B2 What your result would be