Misc: What is the symbol for iron?

Questions

Game show: dick clarks popular word association game began in 1973 as the $10,000 pyramid. But inflation raised the stakes. How high up did the pyramid eventually go?

Game show: dr. Joyce brothers began her career as a media personality by being a winning contestant on?

Game show: three of the following U S Presidents appeared at one time or another on what's my line. Which one did not Jimmy Carter, Gerald Ford, Ronald Reagan, George Bush?

Game show: who has hosted more game shows than anybody?

Game Shows: Chuck Woolery & Rolf Benerschke hosted this show, but are not famous for it.?