Question

how do pressure due to liqiid in a container vary with (a)depth (b) amount (c) shape and size of container

Answer 1

Pressure exerted by liquid=P=hdg

where h= depth ,
d=density  and 
g=acceleration due to gravity.

According to Laws of Liquid Pressure :
Pressure at a point inside the liquid increases with the depth.
The pressure due to liquid at a given depth of the container does not depend upon amount of liquid and shape or Size of the container