QUESTION: Fix punctuation: Here Marie and Knut Hamsun stayed for 10 months during the years 1909 1910 The Castle was Knut Hamsuns scriptorium
ANS: Here Marie and Knut Hamsun stayed for 10 months during the years 1909 - 1910. The Castle was Knut Hamsun's scriptorium.

QUESTION: Fix punctuation: It became too clumsy and never became popular
ANS: It became too clumsy and never became popular.

QUESTION: Fix punctuation: This is quite difficult to fulfill because turf is not uniform there are areas incl
ANS: This is quite difficult to fulfill because turf is not uniform: there are areas incl

QUESTION: Fix punctuation: There are plenty of bars and restaurants in the area and sights like Temple Bar and Trinity College are an easy 15minute bus ride away
ANS:
There are plenty of bars and restaurants in the area, and sights like Temple Bar and Trinity College are an easy 15-minute bus ride away.