At least 13 people die as a tornado strikes Mexico's Ciudad Acuna, with flooding over the border in the United States leaving at least eight dead and 12 missing.
Why do people waste so much time at the office?
The state-of-the-art hospital for poorly birds
Is the lorry driver of the future a piece of software?
Inside Jordan's fight against home-grown extremism
Seeking justice for marital rape in India
Why one Canadian province has a thousand person waiting list for midwives
Is infidelity a billion-dollar business?
Europe's next cheap holiday destination?
Can watching online videos cause PTSD?