Misc: who was the first person to reach the north pole in 1909?

Questions

What teaching aid is made mainly from soft limestone?

What tennis player earned the nickname the Swedish steel?

What term has gradually replaced "jungle" because it "has a nice ring to it," according to William Safire?

What term is used to describe the process of extracting poison from snakes?

What the most north eastern state of the contiguous U S?