Misc: What comprises than 54% of humpback whale's milk?

Questions

Literary Characters: The ever sobbing animal in 'Alice in Wonderland'?

Literary Characters: The invisible man in H.G. Wells's novel?

Literary Characters: This impecunious man is always 'waiting for something to turn up'?

McDonalds: After the first cup of this beverage, refills are usually free.?

McDonalds: Sesame Bun, thick pattie, extra cheese, pickles, sauce.?