Misc: Cat stevens sings 'i can't keep it in, i gotta ______'?

Questions

s j perelman wrote the screen plays for many of the films starring which zany comedians?

which steven spielbereg film pits dennis weaver against a truck with an unseen driver?

transom, poop and keel are all parts of a what?

what do the skunk, magpie and otter have in common they are all?

a salad containing diced apple, celery, walnuts and mayonnaise is known as what?