More Maths Problem Solving

A chocolate fish for the first person to answer this correctly (post as a comment with your pseudonym)

On Monday, Sam, Sunny and Sylvia shared some lollies that their Mum had given them. Sunny got twice as many lollies as Sam. Sylvia got three times as many lollies as Sam plus two lollies.

Their Mum gave them the same number of lollies each day up to (and including) Friday. Altogether, their Mum gave them 70 lollies. How many lollies did Sam get on Monday?