I guess you must be talking about biology book because physics and chemistry are not that helpfull.
I have all three subjects NCERT at your fingertips. I found biology helpful.
NCERT at your fingertips is a really good book.
The best part about this book is:
It is NCERT focussed.
Each chapter contain around 100 questions each out of which 5–7 may be outside of NCERT. Rest all it is NCERT based.
It gives equal weightge to every topic. When you know you know that you know each and every line of NCERT this book brings you down to earth by asking questions from NCERT summery and about the scientists (INFORMATION GIVEN BEFORE STARTING OF EACH UNIT IN NCERT)