A same meaning or not problem:
About 292 Bahraini observers from non-governmental organisations monitored the elections , even though foreign observers were not allowed .
About 292 foreign observers from non-governmental organizations monitored the elections , though Bahraini observers were not allowed .
****
[A]: no

A same meaning or not problem:
Some have negative and some positive effects .
Some have positive and some negative effects .
****
[A]: yes

A same meaning or not problem:
The single is Paisley 's fifth number one consecutive in the '' Billboard '' Hot Country Songs Charts , as well as his ninth number one .
The single is Paisley 's fifth consecutive Number One single on the '' Billboard '' Hot Country Songs charts , as well as his ninth overall Number One .
****
[A]: yes

A same meaning or not problem:
Samata Express is a super quick express train between Visakhapatnam and Hazrat Nizamuddin in New Delhi and is operated by the East Coast Railway .
Samata Express is a super fast express train between Visakhapatnam and Hazrat Nizamuddin in New Delhi and is operated by East Coast Railway .
****
[A]:
yes