Misc: What vegetable varieties include snowball, white horse, & igloo?

Questions

What name is given to a doctor who specialises in skin disorders?

Which name has been most frequently chosen by Roman Catholic Popes?

How did Lawrence of Arabia meet his death in 1935?

Which thick custard-like food is made when fresh milk is artificially curdled by bacteria?

In which building in Washington D.C. does the United States Congress meet?