Magdalena Bujak / Alamy
Peas are in the dark inside a pod, so can’t use their chlorophyll for photosynthesis. In which case, why are they green?
Anthony Woodward, Portland, Oregon, US
AshTproductions/Shutterstock
Holding your breath while pinching your nose is supposed to stop hiccups, but does anything actually cure hiccups?
Jill Lucas, Huddersfield, West Yorkshire, UK
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