tweaking

All standardized tests, the MCAS, the GRE and the LSAT included, need adjustments from time to time. And so I feel no embarrassment when I say our presidential trivia quiz is no different. The initial quiz results seem to indicate that it too needs a little tweaking (Hey, I put the thing together and I could only answer nine of the fifteen questions correctly).
People seem to have enjoyed taking the quiz so I have made a few changes below. I have substituted some of the more obscure questions and added hints. Remember "keep your eyes on your own computer". As before the answers are in the comments section below. Good Luck!

Question number 13, (Who was the only bachelor president), substituted with
Which president played the saxophone? Hint: He sometimes acts like a bachelor.

Question # 5 (Who was the first president to give a radio speech), substitute with
What was Dwight Eisenhower’s nickname? Hint: If you put a “B” before it you could ride it.

Question # 8 (Who was the first president to move into the White House), substitute with
The newspapers erroneously declared this president a loser to Thomas Dewey. Hint: He was from Missouri

Question # 4 (Who was the only president not elected by the people?) substitute with
This president congratulated the astronauts when they landed on the moon? Hint: His middle name was “Milhous”.

Question # 6 (Which president loved peas?) substitute with
This president was a fighter pilot who was shot down during WWII? Hint: He got rescued