This book is the first in a series of book dealing with challenging problems in Physics.However, these books are not intended to be read or used in a sequence. The student is expected to have a good knowledge of physics concepts at the high school level. 250 odd gems from Physics Olympiads and other sources are the source and inspiration of this work. The best way to use this book is for the student to attempt each problem on his/her own. In doing so, the depth of understanding in the subject improves. Physics is not a spectator sport. It requires patience, perseverance and practice. The level of expertise in the subject in some sense is directly proportional to the number of problems solved by the student. This work is a comprehensive self-study guide for the students who desire to improve their understanding, appearing for Physics related competitive examinations and tests.