The number of teeth that are developed twice in the lifetime of human being is

The number of bones in human skull is –

At the age of 20 years, the number of bones in human body is approximately-

The blood pressure of a normal human being is found to be 120/80 mmHg. These "numbers' represent the blood pressure at

The normal systolic pressure in human beings is:

Which of the following is the smallest bone in the human body?