Well, Keith - you have lost a finger there - that link was about the 3-finger rule!
Jonzza - you seem to be pretty mixed up there. Make sure you understand what TAS is first. Now start with answer 1), assume you are climbing at Mach1, and what happens to TAS?
3) Again indicates some confusion in your mind over what TAS and IAS are. Likewise your 'explanation' of Q2 suggests you are not au fait with these factors.
What 'level' are you at in aviation training? It will help to know. I looked to see your posting history, but where/how HN39 'discovered' your 'pilot training from 2009' - "You started your pilot training in january 2009 and four years later you don't know the answer to these questions????" I cannot see - have you deleted some earlier threads?