i want get these questions solved as i am near exams and can't solve these on my own

This is kind of passively lazy... I mean, what were you doing throughout the academic term ? and when you say you can't solve that on your own, why not at least give it a try or work on your confidence threshold...

8 questions answered may save the day for you on the examination day but we will be harming you I believe if we just answer your questions without you showing an attempt to try answering these on your own when majority of these are so simple and straightforward questions ...