Question
Is there a way to set MSB of a number to 0 ...?..

Answer: Yes

@ItsNotMyFault well ....can u explain how?

@spdhiraj99

if you know the size you can just use a bitmask
for 8 bit unsigned integers you can do
x &= 0b01111111;

for unsigned integers in general you can shift the number left and then shift it back right again
x = (x<<1) >> 1;

Make a loop in which u test bits for example numbe 15 is 00001111 so u check 128 false then go lower 64 32 16 8 now 8 is set so u set it to 0
If i got correctly what u mean

Edit:
Or u just shifting the number left til its same then right

Depending on how big the number is (bit size).. you can do this:

(ex for 8 bit byte data type):

Num = 11011011

Num & 0xFE = 11011010

If the number is 16 bit do this:
Num & 0xFFFE

Etc..