The long-running sequence during which readers reply different readers’ questions on topics starting from trivial flights of fancy to profound scientific and philosophical ideas
If the mind makes use of probably the most energy of any organ, is it potential to burn fats by pondering very laborious? Brian Eyack, Aylesbury
Put up your solutions (and new questions) under or ship them to nq@theguardian.com. A range will likely be printed subsequent Sunday.
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