With the help of the above-detailed syllabus you can start preparing for relevant posts. You can search YouTube videos for concepts and explanations.

No, there is no limit on the number of attempts but there’s a restriction on the age limit.

 No, as per eligibility criteria you should have your bachelor’s degree and another relevant degree while applying for the AAO exam.

Some books that can be helpful:

• Quantitative Aptitude for Competitive Exams by R.S.Agarwal
• Verbal and Non-Verbal Reasoning by R.S.Agarwal
• Wren and Martin’s English Grammar and Composition
• A New Approach to Reasoning: Verbal and Non-Verbal by B.S Sijwali and Indu Sijwali
• Manorama Yearbook

Yes, the LIC ADO exam is conducted in online mode.