I've just opened a (paper) packet of flour that is 16 months past its sell-by date. It looks and smells OK and there are no visible signs of insect or fungus attack. What hidden dangers could lurk within it, or is it safe to eat?

I know it would be best to go home and have a beer--but that's not my question. Given a choice: wet, sitting or standing on the beach or just barely sticking your head out of the water, close to shore: which is the safer choice and why?

I take the bus home from school everyday in winter and was just wondering what would happen to me should the bus crash.Since there are no seatbelts and many passengers stand, would the risk of serious injury or death be higher than in a car? And, where would the safest place be? Sitting facing the back wall, standing with a wall of people around me or somewhere else?

Many thanks,

Lana

In buildings, fire exits are marked in green, presumably because red indicates danger.

In safety briefings on planes, however, we are told that “white lights lead to red lights, which indicate the exits.”

Would it not be safer to have the white lights leading to green lights?

In a panic situation my normal reaction might be to avoid anything red.