Insufficient Storage Space problem I have 53 MB of free storage on my internal Storage. But, still, when I am trying to re-install whatsapp messenger, (which is merely of 17.53 MB) after uninstalling it initially, it shows Insufficient Storage Space. 
Specifications:
Model Number : Micromax A58,
Android Version : 4.2.2

What should I do to solve this memory problem?
Suggestion 1:
(At your own risk)
Go to Settings > Apps. 
Select Google and Clear data. 
Select Maps and Clear data. 
Select Chrome and Clear data (only if you have logged in to Chrome and made sure that all your bookmarks are synced to Google Servers).

Suggestion 2:
(If memory is too low, try Suggestion 1 at your risk and then try this) 
Install the app Clean Master and Clean junk

Suggestion 3:
(At your own risk)
Root your phone (rooting can be risky and might essentially kill your phone if not done properly with full knowledge). 
Install Link2SD and move all apps to external SD card

Suggestion 4: 
(least risky) 
Go to Settings > Apps, select the 'Downloaded' tab and then select apps one by one and move them to external/USB card.