QUESTION: Fix punctuation: The 1870s saw Hermite return to problems which had interested him earlier in his career such as problems concerning approximation and interpolation
ANS: The 1870s saw Hermite return to problems which had interested him earlier in his career such as problems concerning approximation and interpolation.

QUESTION: Fix punctuation: On October 17 2016 by Alanya couk
ANS: On October 17, 2016 by Alanya co.uk

QUESTION: Fix punctuation: Smile as you see pirates witches Frankenstein Ozzy President Bush and more
ANS: Smile as you see pirates, witches, Frankenstein, Ozzy, President Bush and more.

QUESTION: Fix punctuation: If it doesnt go to Scan tab click Quick scan button
ANS:
If it doesn't go to "Scan" tab click "Quick scan" button.