Bitwise can be used to reverse a sign of a number.

Bitwise & can be used in conjunction with ~ operator to turn off 1 or more bits in a number.

On left shifting, the bits from the left are rotated and brought to the right and accommodated where there is empty space on the right?

Left shifting an unsigned int or char by 1 is always equivalent to multiplying it by 2.

Bitwise & can be used to divide a number by powers of 2