QUES: This 185 billion merger was a tentative effort of Chinese energy companies to probe the US market

correct the punctuation.

CORRECTED: This $18.5 billion merger was a tentative effort of Chinese energy companies to probe the U.S. market.

QUES: Max user weight 240 kg

correct the punctuation.

CORRECTED: Max. user weight: 240 kg

QUES: The first tender steps for the Four Jacks concert Oh that Road to Mandalay took place in Tivoli Copenhagen where the show opened 14th April 2008

correct the punctuation.

CORRECTED:
The first tender steps for the "Four Jacks" concert "Oh, that Road to Mandalay" took place in Tivoli, Copenhagen where the show opened 14th April 2008.