The behaviour was observed during a crackdown on distracted drivers by Hampshire police, with other offences including a man eating a pear with a knife while driving and motorists using mobile phones.
The force hired an unmarked HGV cab for the initiative in order to get a good viewpoint from which they could observe and video offenders.
As well as the Scania lorry cab, police used two marked cars and a marked motorcycle for the crackdown, called Operation Tramline.
Sergeant Paul Diamond said: ''This should send a very loud message out to motorists. If you are caught using your mobile phone whilst driving you will face a £60 fine and three points on your licence.
''Should you crash whilst driving distracted or on your phone, causing death by careless driving is punishable by 14 years in prison and we will seek to robustly prosecute anyone committing these offences.''Do not put yourself or others at risk.''
During the five-day crackdown held last week on the M27 and M3 motorways, 84 vehicles were stopped due to offences being witnessed and 65 people being prosecuted.
Of these, 55% were commercial vehicles, 39 people were prosecuted for driving while using mobile phones and 26 drivers were prosecuted for being distracted or not in proper control of their vehicles.
taken from http://www.telegraph.co.uk/motoring/news/8805837/Motorist-caught-using-laptop-drinking-and-writing-quiz-answers-at-same-time.html