I want to know that how to solve complicated questions of physics?

@ anup 
nothing is complicaTED in physics as far as i knows . if u will read with besic concept and your concept will be crystal clear in that case the thing will be easy ., 
frst of all ensure that u are not cramming any concept of physics , as physics cannot be remembered  by cramming , 
the 2^nd thing befor proceeding to numericals , dnt forget to read the besic mathematics chap from h c verma as this is vital for problem solving in physics . 
and make sure u knows each and every term well in physics alongwith its units , and the units should have to be convert correctly . 
AND TELL ME IF U HAVE ANY SPECIFIC PROBLEM , I WILL TELL U PROCEDURE 
ALL THE BEST ..

questions in physics are not at all complicated ur thinking and perception on physics is complicated... if u change that u can solve anything... all the best for ur change