"It is hugely embarrassing for David Cameron that he has had to have the difference between borrowing and debt explained to him by the chair of the UK Statistics Authority, " Ms Reeves said.
The newspaper published an article Thursday citing documents from Harvard's library that show its law school reported a Native American female professor in federal statistics in 1992, when Ms. Warren was a visiting professor.
Ms Smith highlighted the youth unemployment statistics in Scotland with 88, 000 young people aged 18 to 24 and asked how the cuts to college funding could be reconciled with the Scottish government's flagship policy for 16 to 19 year olds.