Deficiency of which vitamin causes symptoms like tingling in the tongue, anaemia, white patches on the skin, mouth ulcers and shortness of breath?

Deficiency of Vitamin B12 (Cyanocobalamin) causes megaloblastic anaemia, neurological symptoms like tingling in the hands/feet/tongue, mouth ulcers, white patches on the skin, memory loss, and shortness of breath due to reduced oxygen-carrying capacity of the blood.