The answer to last week’s challenge is: Q: A driver spins off the road and his car plunges into a fast flowing river. Trapped inside the car with water pouring in, it sinks to the bottom. It’s two hours before rescuers find the car and the driver who is still in the driving seat and alive. How does he survive?

A: The river was a very shallow one.

This week’s thinking challenge is …

Q: Under French law, is it legal for a man to marry his widow’s sister?

The answer along with a new challenge, next week.

Have a great weekend!