Misc: What is the clotting protein in blood called?

Questions

what is the nationality of agatha christie's detective hercule poirot?

what is the shortest word in english that contains the letters a, b, c, d, e and f?

what was a bo peep to a 19th century cockney street vendor?

who is othello's wife?

what country is the setting for colleen mccullough's the thorn birds?