It looks like the first time a female former cast member hosted SNL wasn't until the 13th of May 2006, the first time Julia Louis-Dreyfus hosted. She was also the first female former cast member to host a second time, on the 17th of March 2007.
The first male former cast member to host SNL was Chevy Chase on the 18th of February 1978. He was also the first to host a second time, on the 9th of February 1980. (From the end of the 1st season in 1976 to the end of the 5th season in 1980, Chevy Chase was the ONLY former cast member. Bill Murray, the first cast member who was not part of the original cast, hosted twice in 1981.)
Candice Bergen was the first female host AND the first to host more than once.
Kathryn Thornton.
Liam Payne.
Mohtarma Benazier Bhutto was the first and last female Prime Minister of Pakistan. She was elected as Prime Minster of Pakistan twice.
Your first cousin's grandchild is your first cousin, twice removed. Your second cousin's grandchild is your second cousin, twice removed. If you start looking a grandchild of a first cousin once removed, a third cousin twice removed, etc., the answer becomes more complex and depends on whether you are a member of teh younger or older generation in the relationship.
YES
If you are referring to Constantine I (or the Great), he was twice. His first wife was Minervina. He then divorced her and married Flavia Maxima Fausta, daughter of Maximian, the former co-emperor.
Lincoln fired McClellan twice.
Archippus?
Liam Payne
Neil Young. He was inducted first as a solo artist, then as a band member.
The heat comes twice a year.
Yes. He was the president twice, first from 1976 February 13 to 1979 October 1 and again from 1999 May 29 to 2007 May 29.