2)doosra, n.: I think here the Borrowing process is used. This lexeme is borrowed from the Pakistan language [=Urdu].
See Definition of doosra | Collins English Dictionary (note that the usage is between inverted commas sometimes, so some speakers do not consider it an "adopted" word yet.)
3) munter, n.: I have no idea how this lexeme is created.
a) Conversion: log, n. –> log, v.
b) Synthetic compound: web, n. + log, v. + -er (Suffix)
Can you help me please, or say tell me if my solutions are correct?
Please be aware that I'm neither a native English speaker nor a teacher.