1. My speech is pithy, succinct.
2. How are you doing (on this project)? Are you succeeding?
3. What is your position/attitude (on this issue)?
4. He is interested in her.
5. An intelligent decision.
6. We have been discovered?-- ('Ratted on' means informed upon / our secrets revealed.)
7. Did you go to prison together (as children?!)-- 'do time' means be inprisoned, but this must be a jocular use of the idiom: perhaps they went to the same rigid elementary school?