Number of Bones in adult skull are:: (A) 18, (B) 20, (C) 22, (D) 40
Answer is C. The skull at birth contains 45 bones.
The adult skull consists of 22 bones (OR 28 bones including 3 paired ear ossicles).

Calvaria/brain box - 8 bones (OR 14 bones, including 6 ear ossicles).
Facial skeleton - 14 bones.