Where is the safest place to stand outside in a thunderstorm?
Why do identical twins have different fingerprints?
Is the human race still getting taller?
Why do I feel cold and shiver when I have a fever?
Why can’t we just fill in the ozone hole with man-made ozone?
Why do fingers and toes wrinkle when left in water?
Is there an easy way to prove the Earth is round?
Can you have a fish out of water?
Why is sea air good for you?
Do plants die of old age?
Does chewing gum really stay inside you for years?
Where do phobias come from?
Why do I get more car sick in the back?
Could we live on water and supplements?
Do hot drinks cool you down?
What would happen if there were no Moon?
Read the full 101 Greatest Questions of All Time in the March issue of BBC
Focus. Find out more at www.bbcfocusmagazine.com
clipped from: www.telegraph.co.uk