QUES: Note It is advised not to lock these modes in MLOCK at

correct the punctuation.

CORRECTED: Note: It is advised not to lock these modes in MLOCK at (-).

QUES: King Christian the 9th had his son on one side and Grand Duke Friedrich Franz on the other side

correct the punctuation.

CORRECTED: King Christian the 9th had his son on one side and Grand Duke Friedrich Franz on the other side.

QUES: Donald Coxeter was always known as Donald which came from his third name MacDonald

correct the punctuation.

CORRECTED:
Donald Coxeter was always known as Donald which came from his third name MacDonald.